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-rw-r--r--fs/aio.c174
-rw-r--r--fs/btrfs/async-thread.c44
-rw-r--r--fs/btrfs/async-thread.h28
-rw-r--r--fs/btrfs/backref.c14
-rw-r--r--fs/btrfs/btrfs_inode.h19
-rw-r--r--fs/btrfs/ctree.c20
-rw-r--r--fs/btrfs/ctree.h4
-rw-r--r--fs/btrfs/delayed-inode.c4
-rw-r--r--fs/btrfs/disk-io.c88
-rw-r--r--fs/btrfs/extent-tree.c308
-rw-r--r--fs/btrfs/extent_io.c5
-rw-r--r--fs/btrfs/file-item.c2
-rw-r--r--fs/btrfs/file.c31
-rw-r--r--fs/btrfs/inode.c359
-rw-r--r--fs/btrfs/ioctl.c68
-rw-r--r--fs/btrfs/ordered-data.c124
-rw-r--r--fs/btrfs/ordered-data.h5
-rw-r--r--fs/btrfs/qgroup.c170
-rw-r--r--fs/btrfs/qgroup.h1
-rw-r--r--fs/btrfs/raid56.c9
-rw-r--r--fs/btrfs/reada.c3
-rw-r--r--fs/btrfs/scrub.c25
-rw-r--r--fs/btrfs/super.c51
-rw-r--r--fs/btrfs/sysfs.c2
-rw-r--r--fs/btrfs/transaction.c33
-rw-r--r--fs/btrfs/transaction.h1
-rw-r--r--fs/btrfs/tree-log.c80
-rw-r--r--fs/btrfs/tree-log.h2
-rw-r--r--fs/btrfs/ulist.h15
-rw-r--r--fs/btrfs/volumes.c64
-rw-r--r--fs/buffer.c6
-rw-r--r--fs/cachefiles/namei.c3
-rw-r--r--fs/cachefiles/rdwr.c6
-rw-r--r--fs/cifs/Kconfig35
-rw-r--r--fs/cifs/cifsfs.c24
-rw-r--r--fs/cifs/cifsfs.h2
-rw-r--r--fs/cifs/cifsglob.h10
-rw-r--r--fs/cifs/cifspdu.h23
-rw-r--r--fs/cifs/connect.c2
-rw-r--r--fs/cifs/dir.c8
-rw-r--r--fs/cifs/file.c10
-rw-r--r--fs/cifs/inode.c11
-rw-r--r--fs/cifs/link.c12
-rw-r--r--fs/cifs/misc.c7
-rw-r--r--fs/cifs/netmisc.c20
-rw-r--r--fs/cifs/readdir.c6
-rw-r--r--fs/cifs/sess.c24
-rw-r--r--fs/cifs/smb1ops.c7
-rw-r--r--fs/cifs/smb2file.c2
-rw-r--r--fs/cifs/smb2inode.c2
-rw-r--r--fs/cifs/smb2maperror.c4
-rw-r--r--fs/cifs/smb2misc.c17
-rw-r--r--fs/cifs/smb2ops.c172
-rw-r--r--fs/cifs/smb2pdu.c23
-rw-r--r--fs/cifs/smb2pdu.h6
-rw-r--r--fs/cifs/smbfsctl.h2
-rw-r--r--fs/dcache.c11
-rw-r--r--fs/eventpoll.c3
-rw-r--r--fs/ext3/super.c5
-rw-r--r--fs/ext4/ext4.h18
-rw-r--r--fs/ext4/extents.c88
-rw-r--r--fs/ext4/inode.c44
-rw-r--r--fs/ext4/mballoc.c5
-rw-r--r--fs/ext4/namei.c58
-rw-r--r--fs/ext4/resize.c2
-rw-r--r--fs/ext4/super.c5
-rw-r--r--fs/f2fs/Kconfig4
-rw-r--r--fs/f2fs/checkpoint.c80
-rw-r--r--fs/f2fs/data.c19
-rw-r--r--fs/f2fs/debug.c4
-rw-r--r--fs/f2fs/dir.c6
-rw-r--r--fs/f2fs/f2fs.h26
-rw-r--r--fs/f2fs/file.c60
-rw-r--r--fs/f2fs/gc.c8
-rw-r--r--fs/f2fs/gc.h2
-rw-r--r--fs/f2fs/hash.c7
-rw-r--r--fs/f2fs/inline.c38
-rw-r--r--fs/f2fs/namei.c23
-rw-r--r--fs/f2fs/node.c80
-rw-r--r--fs/f2fs/recovery.c30
-rw-r--r--fs/f2fs/segment.c53
-rw-r--r--fs/f2fs/segment.h2
-rw-r--r--fs/f2fs/super.c32
-rw-r--r--fs/f2fs/xattr.c2
-rw-r--r--fs/fscache/object.c1
-rw-r--r--fs/fscache/page.c25
-rw-r--r--fs/gfs2/bmap.c9
-rw-r--r--fs/gfs2/file.c15
-rw-r--r--fs/gfs2/incore.h7
-rw-r--r--fs/gfs2/inode.c9
-rw-r--r--fs/gfs2/super.c20
-rw-r--r--fs/isofs/inode.c15
-rw-r--r--fs/isofs/isofs.h23
-rw-r--r--fs/isofs/rock.c39
-rw-r--r--fs/jbd2/commit.c21
-rw-r--r--fs/jbd2/journal.c56
-rw-r--r--fs/jbd2/recovery.c33
-rw-r--r--fs/jbd2/revoke.c6
-rw-r--r--fs/lockd/svc.c4
-rw-r--r--fs/locks.c88
-rw-r--r--fs/namei.c96
-rw-r--r--fs/namespace.c10
-rw-r--r--fs/nfs/client.c12
-rw-r--r--fs/nfs/filelayout/filelayout.c5
-rw-r--r--fs/nfs/nfs3acl.c5
-rw-r--r--fs/nfs/nfs4_fs.h13
-rw-r--r--fs/nfs/nfs4client.c38
-rw-r--r--fs/nfs/nfs4proc.c50
-rw-r--r--fs/nfs/nfs4state.c24
-rw-r--r--fs/nfs/pagelist.c84
-rw-r--r--fs/nfs/write.c21
-rw-r--r--fs/nfsd/nfs4xdr.c14
-rw-r--r--fs/notify/fdinfo.c4
-rw-r--r--fs/ocfs2/cluster/quorum.c13
-rw-r--r--fs/ocfs2/cluster/tcp.c45
-rw-r--r--fs/ocfs2/cluster/tcp.h1
-rw-r--r--fs/ocfs2/ioctl.c129
-rw-r--r--fs/pnode.c1
-rw-r--r--fs/sync.c2
-rw-r--r--fs/udf/ialloc.c28
-rw-r--r--fs/udf/inode.c161
-rw-r--r--fs/udf/namei.c156
-rw-r--r--fs/udf/super.c69
-rw-r--r--fs/udf/udfdecl.h3
-rw-r--r--fs/ufs/inode.c7
-rw-r--r--fs/ufs/namei.c14
-rw-r--r--fs/xfs/libxfs/xfs_bmap.c18
-rw-r--r--fs/xfs/xfs_aops.c61
-rw-r--r--fs/xfs/xfs_bmap_util.c20
-rw-r--r--fs/xfs/xfs_file.c27
130 files changed, 2795 insertions, 1619 deletions
diff --git a/fs/aio.c b/fs/aio.c
index 93fbcc0f5696..8d217ed04e6e 100644
--- a/fs/aio.c
+++ b/fs/aio.c
@@ -141,6 +141,7 @@ struct kioctx {
struct {
unsigned tail;
+ unsigned completed_events;
spinlock_t completion_lock;
} ____cacheline_aligned_in_smp;
@@ -192,7 +193,6 @@ static struct file *aio_private_file(struct kioctx *ctx, loff_t nr_pages)
}
file->f_flags = O_RDWR;
- file->private_data = ctx;
return file;
}
@@ -202,7 +202,7 @@ static struct dentry *aio_mount(struct file_system_type *fs_type,
static const struct dentry_operations ops = {
.d_dname = simple_dname,
};
- return mount_pseudo(fs_type, "aio:", NULL, &ops, 0xa10a10a1);
+ return mount_pseudo(fs_type, "aio:", NULL, &ops, AIO_RING_MAGIC);
}
/* aio_setup
@@ -556,8 +556,7 @@ static int ioctx_add_table(struct kioctx *ctx, struct mm_struct *mm)
struct aio_ring *ring;
spin_lock(&mm->ioctx_lock);
- rcu_read_lock();
- table = rcu_dereference(mm->ioctx_table);
+ table = rcu_dereference_raw(mm->ioctx_table);
while (1) {
if (table)
@@ -565,7 +564,6 @@ static int ioctx_add_table(struct kioctx *ctx, struct mm_struct *mm)
if (!table->table[i]) {
ctx->id = i;
table->table[i] = ctx;
- rcu_read_unlock();
spin_unlock(&mm->ioctx_lock);
/* While kioctx setup is in progress,
@@ -579,8 +577,6 @@ static int ioctx_add_table(struct kioctx *ctx, struct mm_struct *mm)
}
new_nr = (table ? table->nr : 1) * 4;
-
- rcu_read_unlock();
spin_unlock(&mm->ioctx_lock);
table = kzalloc(sizeof(*table) + sizeof(struct kioctx *) *
@@ -591,8 +587,7 @@ static int ioctx_add_table(struct kioctx *ctx, struct mm_struct *mm)
table->nr = new_nr;
spin_lock(&mm->ioctx_lock);
- rcu_read_lock();
- old = rcu_dereference(mm->ioctx_table);
+ old = rcu_dereference_raw(mm->ioctx_table);
if (!old) {
rcu_assign_pointer(mm->ioctx_table, table);
@@ -739,12 +734,9 @@ static int kill_ioctx(struct mm_struct *mm, struct kioctx *ctx,
spin_lock(&mm->ioctx_lock);
- rcu_read_lock();
- table = rcu_dereference(mm->ioctx_table);
-
+ table = rcu_dereference_raw(mm->ioctx_table);
WARN_ON(ctx != table->table[ctx->id]);
table->table[ctx->id] = NULL;
- rcu_read_unlock();
spin_unlock(&mm->ioctx_lock);
/* percpu_ref_kill() will do the necessary call_rcu() */
@@ -793,40 +785,35 @@ EXPORT_SYMBOL(wait_on_sync_kiocb);
*/
void exit_aio(struct mm_struct *mm)
{
- struct kioctx_table *table;
- struct kioctx *ctx;
- unsigned i = 0;
-
- while (1) {
- rcu_read_lock();
- table = rcu_dereference(mm->ioctx_table);
-
- do {
- if (!table || i >= table->nr) {
- rcu_read_unlock();
- rcu_assign_pointer(mm->ioctx_table, NULL);
- if (table)
- kfree(table);
- return;
- }
+ struct kioctx_table *table = rcu_dereference_raw(mm->ioctx_table);
+ int i;
- ctx = table->table[i++];
- } while (!ctx);
+ if (!table)
+ return;
- rcu_read_unlock();
+ for (i = 0; i < table->nr; ++i) {
+ struct kioctx *ctx = table->table[i];
+ struct completion requests_done =
+ COMPLETION_INITIALIZER_ONSTACK(requests_done);
+ if (!ctx)
+ continue;
/*
- * We don't need to bother with munmap() here -
- * exit_mmap(mm) is coming and it'll unmap everything.
- * Since aio_free_ring() uses non-zero ->mmap_size
- * as indicator that it needs to unmap the area,
- * just set it to 0; aio_free_ring() is the only
- * place that uses ->mmap_size, so it's safe.
+ * We don't need to bother with munmap() here - exit_mmap(mm)
+ * is coming and it'll unmap everything. And we simply can't,
+ * this is not necessarily our ->mm.
+ * Since kill_ioctx() uses non-zero ->mmap_size as indicator
+ * that it needs to unmap the area, just set it to 0.
*/
ctx->mmap_size = 0;
+ kill_ioctx(mm, ctx, &requests_done);
- kill_ioctx(mm, ctx, NULL);
+ /* Wait until all IO for the context are done. */
+ wait_for_completion(&requests_done);
}
+
+ RCU_INIT_POINTER(mm->ioctx_table, NULL);
+ kfree(table);
}
static void put_reqs_available(struct kioctx *ctx, unsigned nr)
@@ -834,10 +821,8 @@ static void put_reqs_available(struct kioctx *ctx, unsigned nr)
struct kioctx_cpu *kcpu;
unsigned long flags;
- preempt_disable();
- kcpu = this_cpu_ptr(ctx->cpu);
-
local_irq_save(flags);
+ kcpu = this_cpu_ptr(ctx->cpu);
kcpu->reqs_available += nr;
while (kcpu->reqs_available >= ctx->req_batch * 2) {
@@ -846,7 +831,6 @@ static void put_reqs_available(struct kioctx *ctx, unsigned nr)
}
local_irq_restore(flags);
- preempt_enable();
}
static bool get_reqs_available(struct kioctx *ctx)
@@ -855,10 +839,8 @@ static bool get_reqs_available(struct kioctx *ctx)
bool ret = false;
unsigned long flags;
- preempt_disable();
- kcpu = this_cpu_ptr(ctx->cpu);
-
local_irq_save(flags);
+ kcpu = this_cpu_ptr(ctx->cpu);
if (!kcpu->reqs_available) {
int old, avail = atomic_read(&ctx->reqs_available);
@@ -878,10 +860,71 @@ static bool get_reqs_available(struct kioctx *ctx)
kcpu->reqs_available--;
out:
local_irq_restore(flags);
- preempt_enable();
return ret;
}
+/* refill_reqs_available
+ * Updates the reqs_available reference counts used for tracking the
+ * number of free slots in the completion ring. This can be called
+ * from aio_complete() (to optimistically update reqs_available) or
+ * from aio_get_req() (the we're out of events case). It must be
+ * called holding ctx->completion_lock.
+ */
+static void refill_reqs_available(struct kioctx *ctx, unsigned head,
+ unsigned tail)
+{
+ unsigned events_in_ring, completed;
+
+ /* Clamp head since userland can write to it. */
+ head %= ctx->nr_events;
+ if (head <= tail)
+ events_in_ring = tail - head;
+ else
+ events_in_ring = ctx->nr_events - (head - tail);
+
+ completed = ctx->completed_events;
+ if (events_in_ring < completed)
+ completed -= events_in_ring;
+ else
+ completed = 0;
+
+ if (!completed)
+ return;
+
+ ctx->completed_events -= completed;
+ put_reqs_available(ctx, completed);
+}
+
+/* user_refill_reqs_available
+ * Called to refill reqs_available when aio_get_req() encounters an
+ * out of space in the completion ring.
+ */
+static void user_refill_reqs_available(struct kioctx *ctx)
+{
+ spin_lock_irq(&ctx->completion_lock);
+ if (ctx->completed_events) {
+ struct aio_ring *ring;
+ unsigned head;
+
+ /* Access of ring->head may race with aio_read_events_ring()
+ * here, but that's okay since whether we read the old version
+ * or the new version, and either will be valid. The important
+ * part is that head cannot pass tail since we prevent
+ * aio_complete() from updating tail by holding
+ * ctx->completion_lock. Even if head is invalid, the check
+ * against ctx->completed_events below will make sure we do the
+ * safe/right thing.
+ */
+ ring = kmap_atomic(ctx->ring_pages[0]);
+ head = ring->head;
+ kunmap_atomic(ring);
+
+ refill_reqs_available(ctx, head, ctx->tail);
+ }
+
+ spin_unlock_irq(&ctx->completion_lock);
+}
+
/* aio_get_req
* Allocate a slot for an aio request.
* Returns NULL if no requests are free.
@@ -890,8 +933,11 @@ static inline struct kiocb *aio_get_req(struct kioctx *ctx)
{
struct kiocb *req;
- if (!get_reqs_available(ctx))
- return NULL;
+ if (!get_reqs_available(ctx)) {
+ user_refill_reqs_available(ctx);
+ if (!get_reqs_available(ctx))
+ return NULL;
+ }
req = kmem_cache_alloc(kiocb_cachep, GFP_KERNEL|__GFP_ZERO);
if (unlikely(!req))
@@ -950,8 +996,8 @@ void aio_complete(struct kiocb *iocb, long res, long res2)
struct kioctx *ctx = iocb->ki_ctx;
struct aio_ring *ring;
struct io_event *ev_page, *event;
+ unsigned tail, pos, head;
unsigned long flags;
- unsigned tail, pos;
/*
* Special case handling for sync iocbs:
@@ -1012,10 +1058,14 @@ void aio_complete(struct kiocb *iocb, long res, long res2)
ctx->tail = tail;
ring = kmap_atomic(ctx->ring_pages[0]);
+ head = ring->head;
ring->tail = tail;
kunmap_atomic(ring);
flush_dcache_page(ctx->ring_pages[0]);
+ ctx->completed_events++;
+ if (ctx->completed_events > 1)
+ refill_reqs_available(ctx, head, tail);
spin_unlock_irqrestore(&ctx->completion_lock, flags);
pr_debug("added to ring %p at [%u]\n", iocb, tail);
@@ -1030,7 +1080,6 @@ void aio_complete(struct kiocb *iocb, long res, long res2)
/* everything turned out well, dispose of the aiocb. */
kiocb_free(iocb);
- put_reqs_available(ctx, 1);
/*
* We have to order our ring_info tail store above and test
@@ -1047,7 +1096,7 @@ void aio_complete(struct kiocb *iocb, long res, long res2)
}
EXPORT_SYMBOL(aio_complete);
-/* aio_read_events
+/* aio_read_events_ring
* Pull an event off of the ioctx's event ring. Returns the number of
* events fetched
*/
@@ -1067,6 +1116,12 @@ static long aio_read_events_ring(struct kioctx *ctx,
tail = ring->tail;
kunmap_atomic(ring);
+ /*
+ * Ensure that once we've read the current tail pointer, that
+ * we also see the events that were stored up to the tail.
+ */
+ smp_rmb();
+
pr_debug("h%u t%u m%u\n", head, tail, ctx->nr_events);
if (head == tail)
@@ -1270,12 +1325,12 @@ static ssize_t aio_setup_vectored_rw(struct kiocb *kiocb,
if (compat)
ret = compat_rw_copy_check_uvector(rw,
(struct compat_iovec __user *)buf,
- *nr_segs, 1, *iovec, iovec);
+ *nr_segs, UIO_FASTIOV, *iovec, iovec);
else
#endif
ret = rw_copy_check_uvector(rw,
(struct iovec __user *)buf,
- *nr_segs, 1, *iovec, iovec);
+ *nr_segs, UIO_FASTIOV, *iovec, iovec);
if (ret < 0)
return ret;
@@ -1299,9 +1354,8 @@ static ssize_t aio_setup_single_vector(struct kiocb *kiocb,
}
/*
- * aio_setup_iocb:
- * Performs the initial checks and aio retry method
- * setup for the kiocb at the time of io submission.
+ * aio_run_iocb:
+ * Performs the initial checks and io submission.
*/
static ssize_t aio_run_iocb(struct kiocb *req, unsigned opcode,
char __user *buf, bool compat)
@@ -1313,7 +1367,7 @@ static ssize_t aio_run_iocb(struct kiocb *req, unsigned opcode,
fmode_t mode;
aio_rw_op *rw_op;
rw_iter_op *iter_op;
- struct iovec inline_vec, *iovec = &inline_vec;
+ struct iovec inline_vecs[UIO_FASTIOV], *iovec = inline_vecs;
struct iov_iter iter;
switch (opcode) {
@@ -1348,7 +1402,7 @@ rw_common:
if (!ret)
ret = rw_verify_area(rw, file, &req->ki_pos, req->ki_nbytes);
if (ret < 0) {
- if (iovec != &inline_vec)
+ if (iovec != inline_vecs)
kfree(iovec);
return ret;
}
@@ -1395,7 +1449,7 @@ rw_common:
return -EINVAL;
}
- if (iovec != &inline_vec)
+ if (iovec != inline_vecs)
kfree(iovec);
if (ret != -EIOCBQUEUED) {
diff --git a/fs/btrfs/async-thread.c b/fs/btrfs/async-thread.c
index 5a201d81049c..fbd76ded9a34 100644
--- a/fs/btrfs/async-thread.c
+++ b/fs/btrfs/async-thread.c
@@ -22,7 +22,6 @@
#include <linux/list.h>
#include <linux/spinlock.h>
#include <linux/freezer.h>
-#include <linux/workqueue.h>
#include "async-thread.h"
#include "ctree.h"
@@ -55,8 +54,39 @@ struct btrfs_workqueue {
struct __btrfs_workqueue *high;
};
-static inline struct __btrfs_workqueue
-*__btrfs_alloc_workqueue(const char *name, int flags, int max_active,
+static void normal_work_helper(struct btrfs_work *work);
+
+#define BTRFS_WORK_HELPER(name) \
+void btrfs_##name(struct work_struct *arg) \
+{ \
+ struct btrfs_work *work = container_of(arg, struct btrfs_work, \
+ normal_work); \
+ normal_work_helper(work); \
+}
+
+BTRFS_WORK_HELPER(worker_helper);
+BTRFS_WORK_HELPER(delalloc_helper);
+BTRFS_WORK_HELPER(flush_delalloc_helper);
+BTRFS_WORK_HELPER(cache_helper);
+BTRFS_WORK_HELPER(submit_helper);
+BTRFS_WORK_HELPER(fixup_helper);
+BTRFS_WORK_HELPER(endio_helper);
+BTRFS_WORK_HELPER(endio_meta_helper);
+BTRFS_WORK_HELPER(endio_meta_write_helper);
+BTRFS_WORK_HELPER(endio_raid56_helper);
+BTRFS_WORK_HELPER(rmw_helper);
+BTRFS_WORK_HELPER(endio_write_helper);
+BTRFS_WORK_HELPER(freespace_write_helper);
+BTRFS_WORK_HELPER(delayed_meta_helper);
+BTRFS_WORK_HELPER(readahead_helper);
+BTRFS_WORK_HELPER(qgroup_rescan_helper);
+BTRFS_WORK_HELPER(extent_refs_helper);
+BTRFS_WORK_HELPER(scrub_helper);
+BTRFS_WORK_HELPER(scrubwrc_helper);
+BTRFS_WORK_HELPER(scrubnc_helper);
+
+static struct __btrfs_workqueue *
+__btrfs_alloc_workqueue(const char *name, int flags, int max_active,
int thresh)
{
struct __btrfs_workqueue *ret = kzalloc(sizeof(*ret), GFP_NOFS);
@@ -232,13 +262,11 @@ static void run_ordered_work(struct __btrfs_workqueue *wq)
spin_unlock_irqrestore(lock, flags);
}
-static void normal_work_helper(struct work_struct *arg)
+static void normal_work_helper(struct btrfs_work *work)
{
- struct btrfs_work *work;
struct __btrfs_workqueue *wq;
int need_order = 0;
- work = container_of(arg, struct btrfs_work, normal_work);
/*
* We should not touch things inside work in the following cases:
* 1) after work->func() if it has no ordered_free
@@ -262,7 +290,7 @@ static void normal_work_helper(struct work_struct *arg)
trace_btrfs_all_work_done(work);
}
-void btrfs_init_work(struct btrfs_work *work,
+void btrfs_init_work(struct btrfs_work *work, btrfs_work_func_t uniq_func,
btrfs_func_t func,
btrfs_func_t ordered_func,
btrfs_func_t ordered_free)
@@ -270,7 +298,7 @@ void btrfs_init_work(struct btrfs_work *work,
work->func = func;
work->ordered_func = ordered_func;
work->ordered_free = ordered_free;
- INIT_WORK(&work->normal_work, normal_work_helper);
+ INIT_WORK(&work->normal_work, uniq_func);
INIT_LIST_HEAD(&work->ordered_list);
work->flags = 0;
}
diff --git a/fs/btrfs/async-thread.h b/fs/btrfs/async-thread.h
index 9c6b66d15fb0..e9e31c94758f 100644
--- a/fs/btrfs/async-thread.h
+++ b/fs/btrfs/async-thread.h
@@ -19,12 +19,14 @@
#ifndef __BTRFS_ASYNC_THREAD_
#define __BTRFS_ASYNC_THREAD_
+#include <linux/workqueue.h>
struct btrfs_workqueue;
/* Internal use only */
struct __btrfs_workqueue;
struct btrfs_work;
typedef void (*btrfs_func_t)(struct btrfs_work *arg);
+typedef void (*btrfs_work_func_t)(struct work_struct *arg);
struct btrfs_work {
btrfs_func_t func;
@@ -38,11 +40,35 @@ struct btrfs_work {
unsigned long flags;
};
+#define BTRFS_WORK_HELPER_PROTO(name) \
+void btrfs_##name(struct work_struct *arg)
+
+BTRFS_WORK_HELPER_PROTO(worker_helper);
+BTRFS_WORK_HELPER_PROTO(delalloc_helper);
+BTRFS_WORK_HELPER_PROTO(flush_delalloc_helper);
+BTRFS_WORK_HELPER_PROTO(cache_helper);
+BTRFS_WORK_HELPER_PROTO(submit_helper);
+BTRFS_WORK_HELPER_PROTO(fixup_helper);
+BTRFS_WORK_HELPER_PROTO(endio_helper);
+BTRFS_WORK_HELPER_PROTO(endio_meta_helper);
+BTRFS_WORK_HELPER_PROTO(endio_meta_write_helper);
+BTRFS_WORK_HELPER_PROTO(endio_raid56_helper);
+BTRFS_WORK_HELPER_PROTO(rmw_helper);
+BTRFS_WORK_HELPER_PROTO(endio_write_helper);
+BTRFS_WORK_HELPER_PROTO(freespace_write_helper);
+BTRFS_WORK_HELPER_PROTO(delayed_meta_helper);
+BTRFS_WORK_HELPER_PROTO(readahead_helper);
+BTRFS_WORK_HELPER_PROTO(qgroup_rescan_helper);
+BTRFS_WORK_HELPER_PROTO(extent_refs_helper);
+BTRFS_WORK_HELPER_PROTO(scrub_helper);
+BTRFS_WORK_HELPER_PROTO(scrubwrc_helper);
+BTRFS_WORK_HELPER_PROTO(scrubnc_helper);
+
struct btrfs_workqueue *btrfs_alloc_workqueue(const char *name,
int flags,
int max_active,
int thresh);
-void btrfs_init_work(struct btrfs_work *work,
+void btrfs_init_work(struct btrfs_work *work, btrfs_work_func_t helper,
btrfs_func_t func,
btrfs_func_t ordered_func,
btrfs_func_t ordered_free);
diff --git a/fs/btrfs/backref.c b/fs/btrfs/backref.c
index e25564bfcb46..54a201dac7f9 100644
--- a/fs/btrfs/backref.c
+++ b/fs/btrfs/backref.c
@@ -276,9 +276,8 @@ static int add_all_parents(struct btrfs_root *root, struct btrfs_path *path,
}
if (ret > 0)
goto next;
- ret = ulist_add_merge(parents, eb->start,
- (uintptr_t)eie,
- (u64 *)&old, GFP_NOFS);
+ ret = ulist_add_merge_ptr(parents, eb->start,
+ eie, (void **)&old, GFP_NOFS);
if (ret < 0)
break;
if (!ret && extent_item_pos) {
@@ -1001,16 +1000,19 @@ again:
ret = -EIO;
goto out;
}
+ btrfs_tree_read_lock(eb);
+ btrfs_set_lock_blocking_rw(eb, BTRFS_READ_LOCK);
ret = find_extent_in_eb(eb, bytenr,
*extent_item_pos, &eie);
+ btrfs_tree_read_unlock_blocking(eb);
free_extent_buffer(eb);
if (ret < 0)
goto out;
ref->inode_list = eie;
}
- ret = ulist_add_merge(refs, ref->parent,
- (uintptr_t)ref->inode_list,
- (u64 *)&eie, GFP_NOFS);
+ ret = ulist_add_merge_ptr(refs, ref->parent,
+ ref->inode_list,
+ (void **)&eie, GFP_NOFS);
if (ret < 0)
goto out;
if (!ret && extent_item_pos) {
diff --git a/fs/btrfs/btrfs_inode.h b/fs/btrfs/btrfs_inode.h
index 4794923c410c..56b8522d5767 100644
--- a/fs/btrfs/btrfs_inode.h
+++ b/fs/btrfs/btrfs_inode.h
@@ -84,12 +84,6 @@ struct btrfs_inode {
*/
struct list_head delalloc_inodes;
- /*
- * list for tracking inodes that must be sent to disk before a
- * rename or truncate commit
- */
- struct list_head ordered_operations;
-
/* node for the red-black tree that links inodes in subvolume root */
struct rb_node rb_node;
@@ -240,8 +234,17 @@ static inline int btrfs_inode_in_log(struct inode *inode, u64 generation)
BTRFS_I(inode)->last_sub_trans <=
BTRFS_I(inode)->last_log_commit &&
BTRFS_I(inode)->last_sub_trans <=
- BTRFS_I(inode)->root->last_log_commit)
- return 1;
+ BTRFS_I(inode)->root->last_log_commit) {
+ /*
+ * After a ranged fsync we might have left some extent maps
+ * (that fall outside the fsync's range). So return false
+ * here if the list isn't empty, to make sure btrfs_log_inode()
+ * will be called and process those extent maps.
+ */
+ smp_mb();
+ if (list_empty(&BTRFS_I(inode)->extent_tree.modified_extents))
+ return 1;
+ }
return 0;
}
diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c
index aeab453b8e24..44ee5d2e52a4 100644
--- a/fs/btrfs/ctree.c
+++ b/fs/btrfs/ctree.c
@@ -280,9 +280,9 @@ int btrfs_copy_root(struct btrfs_trans_handle *trans,
WARN_ON(btrfs_header_generation(buf) > trans->transid);
if (new_root_objectid == BTRFS_TREE_RELOC_OBJECTID)
- ret = btrfs_inc_ref(trans, root, cow, 1, 1);
+ ret = btrfs_inc_ref(trans, root, cow, 1);
else
- ret = btrfs_inc_ref(trans, root, cow, 0, 1);
+ ret = btrfs_inc_ref(trans, root, cow, 0);
if (ret)
return ret;
@@ -1035,14 +1035,14 @@ static noinline int update_ref_for_cow(struct btrfs_trans_handle *trans,
if ((owner == root->root_key.objectid ||
root->root_key.objectid == BTRFS_TREE_RELOC_OBJECTID) &&
!(flags & BTRFS_BLOCK_FLAG_FULL_BACKREF)) {
- ret = btrfs_inc_ref(trans, root, buf, 1, 1);
+ ret = btrfs_inc_ref(trans, root, buf, 1);
BUG_ON(ret); /* -ENOMEM */
if (root->root_key.objectid ==
BTRFS_TREE_RELOC_OBJECTID) {
- ret = btrfs_dec_ref(trans, root, buf, 0, 1);
+ ret = btrfs_dec_ref(trans, root, buf, 0);
BUG_ON(ret); /* -ENOMEM */
- ret = btrfs_inc_ref(trans, root, cow, 1, 1);
+ ret = btrfs_inc_ref(trans, root, cow, 1);
BUG_ON(ret); /* -ENOMEM */
}
new_flags |= BTRFS_BLOCK_FLAG_FULL_BACKREF;
@@ -1050,9 +1050,9 @@ static noinline int update_ref_for_cow(struct btrfs_trans_handle *trans,
if (root->root_key.objectid ==
BTRFS_TREE_RELOC_OBJECTID)
- ret = btrfs_inc_ref(trans, root, cow, 1, 1);
+ ret = btrfs_inc_ref(trans, root, cow, 1);
else
- ret = btrfs_inc_ref(trans, root, cow, 0, 1);
+ ret = btrfs_inc_ref(trans, root, cow, 0);
BUG_ON(ret); /* -ENOMEM */
}
if (new_flags != 0) {
@@ -1069,11 +1069,11 @@ static noinline int update_ref_for_cow(struct btrfs_trans_handle *trans,
if (flags & BTRFS_BLOCK_FLAG_FULL_BACKREF) {
if (root->root_key.objectid ==
BTRFS_TREE_RELOC_OBJECTID)
- ret = btrfs_inc_ref(trans, root, cow, 1, 1);
+ ret = btrfs_inc_ref(trans, root, cow, 1);
else
- ret = btrfs_inc_ref(trans, root, cow, 0, 1);
+ ret = btrfs_inc_ref(trans, root, cow, 0);
BUG_ON(ret); /* -ENOMEM */
- ret = btrfs_dec_ref(trans, root, buf, 1, 1);
+ ret = btrfs_dec_ref(trans, root, buf, 1);
BUG_ON(ret); /* -ENOMEM */
}
clean_tree_block(trans, root, buf);
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index be91397f4e92..8e29b614fe93 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -3326,9 +3326,9 @@ int btrfs_reserve_extent(struct btrfs_root *root, u64 num_bytes,
u64 min_alloc_size, u64 empty_size, u64 hint_byte,
struct btrfs_key *ins, int is_data, int delalloc);
int btrfs_inc_ref(struct btrfs_trans_handle *trans, struct btrfs_root *root,
- struct extent_buffer *buf, int full_backref, int no_quota);
+ struct extent_buffer *buf, int full_backref);
int btrfs_dec_ref(struct btrfs_trans_handle *trans, struct btrfs_root *root,
- struct extent_buffer *buf, int full_backref, int no_quota);
+ struct extent_buffer *buf, int full_backref);
int btrfs_set_disk_extent_flags(struct btrfs_trans_handle *trans,
struct btrfs_root *root,
u64 bytenr, u64 num_bytes, u64 flags,
diff --git a/fs/btrfs/delayed-inode.c b/fs/btrfs/delayed-inode.c
index da775bfdebc9..a2e90f855d7d 100644
--- a/fs/btrfs/delayed-inode.c
+++ b/fs/btrfs/delayed-inode.c
@@ -1395,8 +1395,8 @@ static int btrfs_wq_run_delayed_node(struct btrfs_delayed_root *delayed_root,
return -ENOMEM;
async_work->delayed_root = delayed_root;
- btrfs_init_work(&async_work->work, btrfs_async_run_delayed_root,
- NULL, NULL);
+ btrfs_init_work(&async_work->work, btrfs_delayed_meta_helper,
+ btrfs_async_run_delayed_root, NULL, NULL);
async_work->nr = nr;
btrfs_queue_work(root->fs_info->delayed_workers, &async_work->work);
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 61dae01788d7..d0d78dc07792 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -39,7 +39,6 @@
#include "btrfs_inode.h"
#include "volumes.h"
#include "print-tree.h"
-#include "async-thread.h"
#include "locking.h"
#include "tree-log.h"
#include "free-space-cache.h"
@@ -60,8 +59,6 @@ static void end_workqueue_fn(struct btrfs_work *work);
static void free_fs_root(struct btrfs_root *root);
static int btrfs_check_super_valid(struct btrfs_fs_info *fs_info,
int read_only);
-static void btrfs_destroy_ordered_operations(struct btrfs_transaction *t,
- struct btrfs_root *root);
static void btrfs_destroy_ordered_extents(struct btrfs_root *root);
static int btrfs_destroy_delayed_refs(struct btrfs_transaction *trans,
struct btrfs_root *root);
@@ -695,35 +692,41 @@ static void end_workqueue_bio(struct bio *bio, int err)
{
struct end_io_wq *end_io_wq = bio->bi_private;
struct btrfs_fs_info *fs_info;
+ struct btrfs_workqueue *wq;
+ btrfs_work_func_t func;
fs_info = end_io_wq->info;
end_io_wq->error = err;
- btrfs_init_work(&end_io_wq->work, end_workqueue_fn, NULL, NULL);
if (bio->bi_rw & REQ_WRITE) {
- if (end_io_wq->metadata == BTRFS_WQ_ENDIO_METADATA)
- btrfs_queue_work(fs_info->endio_meta_write_workers,
- &end_io_wq->work);
- else if (end_io_wq->metadata == BTRFS_WQ_ENDIO_FREE_SPACE)
- btrfs_queue_work(fs_info->endio_freespace_worker,
- &end_io_wq->work);
- else if (end_io_wq->metadata == BTRFS_WQ_ENDIO_RAID56)
- btrfs_queue_work(fs_info->endio_raid56_workers,
- &end_io_wq->work);
- else
- btrfs_queue_work(fs_info->endio_write_workers,
- &end_io_wq->work);
+ if (end_io_wq->metadata == BTRFS_WQ_ENDIO_METADATA) {
+ wq = fs_info->endio_meta_write_workers;
+ func = btrfs_endio_meta_write_helper;
+ } else if (end_io_wq->metadata == BTRFS_WQ_ENDIO_FREE_SPACE) {
+ wq = fs_info->endio_freespace_worker;
+ func = btrfs_freespace_write_helper;
+ } else if (end_io_wq->metadata == BTRFS_WQ_ENDIO_RAID56) {
+ wq = fs_info->endio_raid56_workers;
+ func = btrfs_endio_raid56_helper;
+ } else {
+ wq = fs_info->endio_write_workers;
+ func = btrfs_endio_write_helper;
+ }
} else {
- if (end_io_wq->metadata == BTRFS_WQ_ENDIO_RAID56)
- btrfs_queue_work(fs_info->endio_raid56_workers,
- &end_io_wq->work);
- else if (end_io_wq->metadata)
- btrfs_queue_work(fs_info->endio_meta_workers,
- &end_io_wq->work);
- else
- btrfs_queue_work(fs_info->endio_workers,
- &end_io_wq->work);
+ if (end_io_wq->metadata == BTRFS_WQ_ENDIO_RAID56) {
+ wq = fs_info->endio_raid56_workers;
+ func = btrfs_endio_raid56_helper;
+ } else if (end_io_wq->metadata) {
+ wq = fs_info->endio_meta_workers;
+ func = btrfs_endio_meta_helper;
+ } else {
+ wq = fs_info->endio_workers;
+ func = btrfs_endio_helper;
+ }
}
+
+ btrfs_init_work(&end_io_wq->work, func, end_workqueue_fn, NULL, NULL);
+ btrfs_queue_work(wq, &end_io_wq->work);
}
/*
@@ -830,7 +833,7 @@ int btrfs_wq_submit_bio(struct btrfs_fs_info *fs_info, struct inode *inode,
async->submit_bio_start = submit_bio_start;
async->submit_bio_done = submit_bio_done;
- btrfs_init_work(&async->work, run_one_async_start,
+ btrfs_init_work(&async->work, btrfs_worker_helper, run_one_async_start,
run_one_async_done, run_one_async_free);
async->bio_flags = bio_flags;
@@ -3452,7 +3455,8 @@ static int write_all_supers(struct btrfs_root *root, int max_mirrors)
btrfs_set_stack_device_generation(dev_item, 0);
btrfs_set_stack_device_type(dev_item, dev->type);
btrfs_set_stack_device_id(dev_item, dev->devid);
- btrfs_set_stack_device_total_bytes(dev_item, dev->total_bytes);
+ btrfs_set_stack_device_total_bytes(dev_item,
+ dev->disk_total_bytes);
btrfs_set_stack_device_bytes_used(dev_item, dev->bytes_used);
btrfs_set_stack_device_io_align(dev_item, dev->io_align);
btrfs_set_stack_device_io_width(dev_item, dev->io_width);
@@ -3829,34 +3833,6 @@ static void btrfs_error_commit_super(struct btrfs_root *root)
btrfs_cleanup_transaction(root);
}
-static void btrfs_destroy_ordered_operations(struct btrfs_transaction *t,
- struct btrfs_root *root)
-{
- struct btrfs_inode *btrfs_inode;
- struct list_head splice;
-
- INIT_LIST_HEAD(&splice);
-
- mutex_lock(&root->fs_info->ordered_operations_mutex);
- spin_lock(&root->fs_info->ordered_root_lock);
-
- list_splice_init(&t->ordered_operations, &splice);
- while (!list_empty(&splice)) {
- btrfs_inode = list_entry(splice.next, struct btrfs_inode,
- ordered_operations);
-
- list_del_init(&btrfs_inode->ordered_operations);
- spin_unlock(&root->fs_info->ordered_root_lock);
-
- btrfs_invalidate_inodes(btrfs_inode->root);
-
- spin_lock(&root->fs_info->ordered_root_lock);
- }
-
- spin_unlock(&root->fs_info->ordered_root_lock);
- mutex_unlock(&root->fs_info->ordered_operations_mutex);
-}
-
static void btrfs_destroy_ordered_extents(struct btrfs_root *root)
{
struct btrfs_ordered_extent *ordered;
@@ -4093,8 +4069,6 @@ again:
void btrfs_cleanup_one_transaction(struct btrfs_transaction *cur_trans,
struct btrfs_root *root)
{
- btrfs_destroy_ordered_operations(cur_trans, root);
-
btrfs_destroy_delayed_refs(cur_trans, root);
cur_trans->state = TRANS_STATE_COMMIT_START;
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 94ec71eda86b..caaf015d6e4b 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -552,7 +552,8 @@ static int cache_block_group(struct btrfs_block_group_cache *cache,
caching_ctl->block_group = cache;
caching_ctl->progress = cache->key.objectid;
atomic_set(&caching_ctl->count, 1);
- btrfs_init_work(&caching_ctl->work, caching_thread, NULL, NULL);
+ btrfs_init_work(&caching_ctl->work, btrfs_cache_helper,
+ caching_thread, NULL, NULL);
spin_lock(&cache->lock);
/*
@@ -2749,8 +2750,8 @@ int btrfs_async_run_delayed_refs(struct btrfs_root *root,
async->sync = 0;
init_completion(&async->wait);
- btrfs_init_work(&async->work, delayed_ref_async_start,
- NULL, NULL);
+ btrfs_init_work(&async->work, btrfs_extent_refs_helper,
+ delayed_ref_async_start, NULL, NULL);
btrfs_queue_work(root->fs_info->extent_workers, &async->work);
@@ -3057,7 +3058,7 @@ out:
static int __btrfs_mod_ref(struct btrfs_trans_handle *trans,
struct btrfs_root *root,
struct extent_buffer *buf,
- int full_backref, int inc, int no_quota)
+ int full_backref, int inc)
{
u64 bytenr;
u64 num_bytes;
@@ -3111,7 +3112,7 @@ static int __btrfs_mod_ref(struct btrfs_trans_handle *trans,
key.offset -= btrfs_file_extent_offset(buf, fi);
ret = process_func(trans, root, bytenr, num_bytes,
parent, ref_root, key.objectid,
- key.offset, no_quota);
+ key.offset, 1);
if (ret)
goto fail;
} else {
@@ -3119,7 +3120,7 @@ static int __btrfs_mod_ref(struct btrfs_trans_handle *trans,
num_bytes = btrfs_level_size(root, level - 1);
ret = process_func(trans, root, bytenr, num_bytes,
parent, ref_root, level - 1, 0,
- no_quota);
+ 1);
if (ret)
goto fail;
}
@@ -3130,15 +3131,15 @@ fail:
}
int btrfs_inc_ref(struct btrfs_trans_handle *trans, struct btrfs_root *root,
- struct extent_buffer *buf, int full_backref, int no_quota)
+ struct extent_buffer *buf, int full_backref)
{
- return __btrfs_mod_ref(trans, root, buf, full_backref, 1, no_quota);
+ return __btrfs_mod_ref(trans, root, buf, full_backref, 1);
}
int btrfs_dec_ref(struct btrfs_trans_handle *trans, struct btrfs_root *root,
- struct extent_buffer *buf, int full_backref, int no_quota)
+ struct extent_buffer *buf, int full_backref)
{
- return __btrfs_mod_ref(trans, root, buf, full_backref, 0, no_quota);
+ return __btrfs_mod_ref(trans, root, buf, full_backref, 0);
}
static int write_one_cache_group(struct btrfs_trans_handle *trans,
@@ -3586,13 +3587,7 @@ static u64 get_restripe_target(struct btrfs_fs_info *fs_info, u64 flags)
*/
static u64 btrfs_reduce_alloc_profile(struct btrfs_root *root, u64 flags)
{
- /*
- * we add in the count of missing devices because we want
- * to make sure that any RAID levels on a degraded FS
- * continue to be honored.
- */
- u64 num_devices = root->fs_info->fs_devices->rw_devices +
- root->fs_info->fs_devices->missing_devices;
+ u64 num_devices = root->fs_info->fs_devices->rw_devices;
u64 target;
u64 tmp;
@@ -7478,6 +7473,220 @@ reada:
wc->reada_slot = slot;
}
+static int account_leaf_items(struct btrfs_trans_handle *trans,
+ struct btrfs_root *root,
+ struct extent_buffer *eb)
+{
+ int nr = btrfs_header_nritems(eb);
+ int i, extent_type, ret;
+ struct btrfs_key key;
+ struct btrfs_file_extent_item *fi;
+ u64 bytenr, num_bytes;
+
+ for (i = 0; i < nr; i++) {
+ btrfs_item_key_to_cpu(eb, &key, i);
+
+ if (key.type != BTRFS_EXTENT_DATA_KEY)
+ continue;
+
+ fi = btrfs_item_ptr(eb, i, struct btrfs_file_extent_item);
+ /* filter out non qgroup-accountable extents */
+ extent_type = btrfs_file_extent_type(eb, fi);
+
+ if (extent_type == BTRFS_FILE_EXTENT_INLINE)
+ continue;
+
+ bytenr = btrfs_file_extent_disk_bytenr(eb, fi);
+ if (!bytenr)
+ continue;
+
+ num_bytes = btrfs_file_extent_disk_num_bytes(eb, fi);
+
+ ret = btrfs_qgroup_record_ref(trans, root->fs_info,
+ root->objectid,
+ bytenr, num_bytes,
+ BTRFS_QGROUP_OPER_SUB_SUBTREE, 0);
+ if (ret)
+ return ret;
+ }
+ return 0;
+}
+
+/*
+ * Walk up the tree from the bottom, freeing leaves and any interior
+ * nodes which have had all slots visited. If a node (leaf or
+ * interior) is freed, the node above it will have it's slot
+ * incremented. The root node will never be freed.
+ *
+ * At the end of this function, we should have a path which has all
+ * slots incremented to the next position for a search. If we need to
+ * read a new node it will be NULL and the node above it will have the
+ * correct slot selected for a later read.
+ *
+ * If we increment the root nodes slot counter past the number of
+ * elements, 1 is returned to signal completion of the search.
+ */
+static int adjust_slots_upwards(struct btrfs_root *root,
+ struct btrfs_path *path, int root_level)
+{
+ int level = 0;
+ int nr, slot;
+ struct extent_buffer *eb;
+
+ if (root_level == 0)
+ return 1;
+
+ while (level <= root_level) {
+ eb = path->nodes[level];
+ nr = btrfs_header_nritems(eb);
+ path->slots[level]++;
+ slot = path->slots[level];
+ if (slot >= nr || level == 0) {
+ /*
+ * Don't free the root - we will detect this
+ * condition after our loop and return a
+ * positive value for caller to stop walking the tree.
+ */
+ if (level != root_level) {
+ btrfs_tree_unlock_rw(eb, path->locks[level]);
+ path->locks[level] = 0;
+
+ free_extent_buffer(eb);
+ path->nodes[level] = NULL;
+ path->slots[level] = 0;
+ }
+ } else {
+ /*
+ * We have a valid slot to walk back down
+ * from. Stop here so caller can process these
+ * new nodes.
+ */
+ break;
+ }
+
+ level++;
+ }
+
+ eb = path->nodes[root_level];
+ if (path->slots[root_level] >= btrfs_header_nritems(eb))
+ return 1;
+
+ return 0;
+}
+
+/*
+ * root_eb is the subtree root and is locked before this function is called.
+ */
+static int account_shared_subtree(struct btrfs_trans_handle *trans,
+ struct btrfs_root *root,
+ struct extent_buffer *root_eb,
+ u64 root_gen,
+ int root_level)
+{
+ int ret = 0;
+ int level;
+ struct extent_buffer *eb = root_eb;
+ struct btrfs_path *path = NULL;
+
+ BUG_ON(root_level < 0 || root_level > BTRFS_MAX_LEVEL);
+ BUG_ON(root_eb == NULL);
+
+ if (!root->fs_info->quota_enabled)
+ return 0;
+
+ if (!extent_buffer_uptodate(root_eb)) {
+ ret = btrfs_read_buffer(root_eb, root_gen);
+ if (ret)
+ goto out;
+ }
+
+ if (root_level == 0) {
+ ret = account_leaf_items(trans, root, root_eb);
+ goto out;
+ }
+
+ path = btrfs_alloc_path();
+ if (!path)
+ return -ENOMEM;
+
+ /*
+ * Walk down the tree. Missing extent blocks are filled in as
+ * we go. Metadata is accounted every time we read a new
+ * extent block.
+ *
+ * When we reach a leaf, we account for file extent items in it,
+ * walk back up the tree (adjusting slot pointers as we go)
+ * and restart the search process.
+ */
+ extent_buffer_get(root_eb); /* For path */
+ path->nodes[root_level] = root_eb;
+ path->slots[root_level] = 0;
+ path->locks[root_level] = 0; /* so release_path doesn't try to unlock */
+walk_down:
+ level = root_level;
+ while (level >= 0) {
+ if (path->nodes[level] == NULL) {
+ int child_bsize = root->nodesize;
+ int parent_slot;
+ u64 child_gen;
+ u64 child_bytenr;
+
+ /* We need to get child blockptr/gen from
+ * parent before we can read it. */
+ eb = path->nodes[level + 1];
+ parent_slot = path->slots[level + 1];
+ child_bytenr = btrfs_node_blockptr(eb, parent_slot);
+ child_gen = btrfs_node_ptr_generation(eb, parent_slot);
+
+ eb = read_tree_block(root, child_bytenr, child_bsize,
+ child_gen);
+ if (!eb || !extent_buffer_uptodate(eb)) {
+ ret = -EIO;
+ goto out;
+ }
+
+ path->nodes[level] = eb;
+ path->slots[level] = 0;
+
+ btrfs_tree_read_lock(eb);
+ btrfs_set_lock_blocking_rw(eb, BTRFS_READ_LOCK);
+ path->locks[level] = BTRFS_READ_LOCK_BLOCKING;
+
+ ret = btrfs_qgroup_record_ref(trans, root->fs_info,
+ root->objectid,
+ child_bytenr,
+ child_bsize,
+ BTRFS_QGROUP_OPER_SUB_SUBTREE,
+ 0);
+ if (ret)
+ goto out;
+
+ }
+
+ if (level == 0) {
+ ret = account_leaf_items(trans, root, path->nodes[level]);
+ if (ret)
+ goto out;
+
+ /* Nonzero return here means we completed our search */
+ ret = adjust_slots_upwards(root, path, root_level);
+ if (ret)
+ break;
+
+ /* Restart search with new slots */
+ goto walk_down;
+ }
+
+ level--;
+ }
+
+ ret = 0;
+out:
+ btrfs_free_path(path);
+
+ return ret;
+}
+
/*
* helper to process tree block while walking down the tree.
*
@@ -7532,9 +7741,9 @@ static noinline int walk_down_proc(struct btrfs_trans_handle *trans,
/* wc->stage == UPDATE_BACKREF */
if (!(wc->flags[level] & flag)) {
BUG_ON(!path->locks[level]);
- ret = btrfs_inc_ref(trans, root, eb, 1, wc->for_reloc);
+ ret = btrfs_inc_ref(trans, root, eb, 1);
BUG_ON(ret); /* -ENOMEM */
- ret = btrfs_dec_ref(trans, root, eb, 0, wc->for_reloc);
+ ret = btrfs_dec_ref(trans, root, eb, 0);
BUG_ON(ret); /* -ENOMEM */
ret = btrfs_set_disk_extent_flags(trans, root, eb->start,
eb->len, flag,
@@ -7581,6 +7790,7 @@ static noinline int do_walk_down(struct btrfs_trans_handle *trans,
int level = wc->level;
int reada = 0;
int ret = 0;
+ bool need_account = false;
generation = btrfs_node_ptr_generation(path->nodes[level],
path->slots[level]);
@@ -7626,6 +7836,7 @@ static noinline int do_walk_down(struct btrfs_trans_handle *trans,
if (wc->stage == DROP_REFERENCE) {
if (wc->refs[level - 1] > 1) {
+ need_account = true;
if (level == 1 &&
(wc->flags[0] & BTRFS_BLOCK_FLAG_FULL_BACKREF))
goto skip;
@@ -7689,6 +7900,16 @@ skip:
parent = 0;
}
+ if (need_account) {
+ ret = account_shared_subtree(trans, root, next,
+ generation, level - 1);
+ if (ret) {
+ printk_ratelimited(KERN_ERR "BTRFS: %s Error "
+ "%d accounting shared subtree. Quota "
+ "is out of sync, rescan required.\n",
+ root->fs_info->sb->s_id, ret);
+ }
+ }
ret = btrfs_free_extent(trans, root, bytenr, blocksize, parent,
root->root_key.objectid, level - 1, 0, 0);
BUG_ON(ret); /* -ENOMEM */
@@ -7769,12 +7990,17 @@ static noinline int walk_up_proc(struct btrfs_trans_handle *trans,
if (wc->refs[level] == 1) {
if (level == 0) {
if (wc->flags[level] & BTRFS_BLOCK_FLAG_FULL_BACKREF)
- ret = btrfs_dec_ref(trans, root, eb, 1,
- wc->for_reloc);
+ ret = btrfs_dec_ref(trans, root, eb, 1);
else
- ret = btrfs_dec_ref(trans, root, eb, 0,
- wc->for_reloc);
+ ret = btrfs_dec_ref(trans, root, eb, 0);
BUG_ON(ret); /* -ENOMEM */
+ ret = account_leaf_items(trans, root, eb);
+ if (ret) {
+ printk_ratelimited(KERN_ERR "BTRFS: %s Error "
+ "%d accounting leaf items. Quota "
+ "is out of sync, rescan required.\n",
+ root->fs_info->sb->s_id, ret);
+ }
}
/* make block locked assertion in clean_tree_block happy */
if (!path->locks[level] &&
@@ -7900,6 +8126,8 @@ int btrfs_drop_snapshot(struct btrfs_root *root,
int level;
bool root_dropped = false;
+ btrfs_debug(root->fs_info, "Drop subvolume %llu", root->objectid);
+
path = btrfs_alloc_path();
if (!path) {
err = -ENOMEM;
@@ -8025,6 +8253,24 @@ int btrfs_drop_snapshot(struct btrfs_root *root,
goto out_end_trans;
}
+ /*
+ * Qgroup update accounting is run from
+ * delayed ref handling. This usually works
+ * out because delayed refs are normally the
+ * only way qgroup updates are added. However,
+ * we may have added updates during our tree
+ * walk so run qgroups here to make sure we
+ * don't lose any updates.
+ */
+ ret = btrfs_delayed_qgroup_accounting(trans,
+ root->fs_info);
+ if (ret)
+ printk_ratelimited(KERN_ERR "BTRFS: Failure %d "
+ "running qgroup updates "
+ "during snapshot delete. "
+ "Quota is out of sync, "
+ "rescan required.\n", ret);
+
btrfs_end_transaction_throttle(trans, tree_root);
if (!for_reloc && btrfs_need_cleaner_sleep(root)) {
pr_debug("BTRFS: drop snapshot early exit\n");
@@ -8078,6 +8324,14 @@ int btrfs_drop_snapshot(struct btrfs_root *root,
}
root_dropped = true;
out_end_trans:
+ ret = btrfs_delayed_qgroup_accounting(trans, tree_root->fs_info);
+ if (ret)
+ printk_ratelimited(KERN_ERR "BTRFS: Failure %d "
+ "running qgroup updates "
+ "during snapshot delete. "
+ "Quota is out of sync, "
+ "rescan required.\n", ret);
+
btrfs_end_transaction_throttle(trans, tree_root);
out_free:
kfree(wc);
@@ -8181,13 +8435,7 @@ static u64 update_block_group_flags(struct btrfs_root *root, u64 flags)
if (stripped)
return extended_to_chunk(stripped);
- /*
- * we add in the count of missing devices because we want
- * to make sure that any RAID levels on a degraded FS
- * continue to be honored.
- */
- num_devices = root->fs_info->fs_devices->rw_devices +
- root->fs_info->fs_devices->missing_devices;
+ num_devices = root->fs_info->fs_devices->rw_devices;
stripped = BTRFS_BLOCK_GROUP_RAID0 |
BTRFS_BLOCK_GROUP_RAID5 | BTRFS_BLOCK_GROUP_RAID6 |
diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index 3e11aab9f391..af0359dcf337 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -2532,6 +2532,7 @@ static void end_bio_extent_readpage(struct bio *bio, int err)
test_bit(BIO_UPTODATE, &bio->bi_flags);
if (err)
uptodate = 0;
+ offset += len;
continue;
}
}
@@ -4207,8 +4208,8 @@ int extent_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
return -ENOMEM;
path->leave_spinning = 1;
- start = ALIGN(start, BTRFS_I(inode)->root->sectorsize);
- len = ALIGN(len, BTRFS_I(inode)->root->sectorsize);
+ start = round_down(start, BTRFS_I(inode)->root->sectorsize);
+ len = round_up(max, BTRFS_I(inode)->root->sectorsize) - start;
/*
* lookup the last file extent. We're not using i_size here
diff --git a/fs/btrfs/file-item.c b/fs/btrfs/file-item.c
index f46cfe45d686..54c84daec9b5 100644
--- a/fs/btrfs/file-item.c
+++ b/fs/btrfs/file-item.c
@@ -756,7 +756,7 @@ again:
found_next = 1;
if (ret != 0)
goto insert;
- slot = 0;
+ slot = path->slots[0];
}
btrfs_item_key_to_cpu(path->nodes[0], &found_key, slot);
if (found_key.objectid != BTRFS_EXTENT_CSUM_OBJECTID ||
diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c
index 1f2b99cb55ea..ff1cc0399b9a 100644
--- a/fs/btrfs/file.c
+++ b/fs/btrfs/file.c
@@ -1838,6 +1838,8 @@ out:
int btrfs_release_file(struct inode *inode, struct file *filp)
{
+ if (filp->private_data)
+ btrfs_ioctl_trans_end(filp);
/*
* ordered_data_close is set by settattr when we are about to truncate
* a file from a non-zero size to a zero size. This tries to
@@ -1845,26 +1847,8 @@ int btrfs_release_file(struct inode *inode, struct file *filp)
* application were using truncate to replace a file in place.
*/
if (test_and_clear_bit(BTRFS_INODE_ORDERED_DATA_CLOSE,
- &BTRFS_I(inode)->runtime_flags)) {
- struct btrfs_trans_handle *trans;
- struct btrfs_root *root = BTRFS_I(inode)->root;
-
- /*
- * We need to block on a committing transaction to keep us from
- * throwing a ordered operation on to the list and causing
- * something like sync to deadlock trying to flush out this
- * inode.
- */
- trans = btrfs_start_transaction(root, 0);
- if (IS_ERR(trans))
- return PTR_ERR(trans);
- btrfs_add_ordered_operation(trans, BTRFS_I(inode)->root, inode);
- btrfs_end_transaction(trans, root);
- if (inode->i_size > BTRFS_ORDERED_OPERATIONS_FLUSH_LIMIT)
+ &BTRFS_I(inode)->runtime_flags))
filemap_flush(inode->i_mapping);
- }
- if (filp->private_data)
- btrfs_ioctl_trans_end(filp);
return 0;
}
@@ -1982,7 +1966,7 @@ int btrfs_sync_file(struct file *file, loff_t start, loff_t end, int datasync)
btrfs_init_log_ctx(&ctx);
- ret = btrfs_log_dentry_safe(trans, root, dentry, &ctx);
+ ret = btrfs_log_dentry_safe(trans, root, dentry, start, end, &ctx);
if (ret < 0) {
/* Fallthrough and commit/free transaction. */
ret = 1;
@@ -2112,10 +2096,9 @@ static int fill_holes(struct btrfs_trans_handle *trans, struct inode *inode,
goto out;
}
- if (hole_mergeable(inode, leaf, path->slots[0]+1, offset, end)) {
+ if (hole_mergeable(inode, leaf, path->slots[0], offset, end)) {
u64 num_bytes;
- path->slots[0]++;
key.offset = offset;
btrfs_set_item_key_safe(root, path, &key);
fi = btrfs_item_ptr(leaf, path->slots[0],
@@ -2240,7 +2223,7 @@ static int btrfs_punch_hole(struct inode *inode, loff_t offset, loff_t len)
goto out_only_mutex;
}
- lockstart = round_up(offset , BTRFS_I(inode)->root->sectorsize);
+ lockstart = round_up(offset, BTRFS_I(inode)->root->sectorsize);
lockend = round_down(offset + len,
BTRFS_I(inode)->root->sectorsize) - 1;
same_page = ((offset >> PAGE_CACHE_SHIFT) ==
@@ -2301,7 +2284,7 @@ static int btrfs_punch_hole(struct inode *inode, loff_t offset, loff_t len)
tail_start + tail_len, 0, 1);
if (ret)
goto out_only_mutex;
- }
+ }
}
}
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 3183742d6f0d..016c403bfe7e 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -709,6 +709,18 @@ retry:
unlock_extent(io_tree, async_extent->start,
async_extent->start +
async_extent->ram_size - 1);
+
+ /*
+ * we need to redirty the pages if we decide to
+ * fallback to uncompressed IO, otherwise we
+ * will not submit these pages down to lower
+ * layers.
+ */
+ extent_range_redirty_for_io(inode,
+ async_extent->start,
+ async_extent->start +
+ async_extent->ram_size - 1);
+
goto retry;
}
goto out_free;
@@ -766,8 +778,12 @@ retry:
ins.offset,
BTRFS_ORDERED_COMPRESSED,
async_extent->compress_type);
- if (ret)
+ if (ret) {
+ btrfs_drop_extent_cache(inode, async_extent->start,
+ async_extent->start +
+ async_extent->ram_size - 1, 0);
goto out_free_reserve;
+ }
/*
* clear dirty, set writeback and unlock the pages.
@@ -959,14 +975,14 @@ static noinline int cow_file_range(struct inode *inode,
ret = btrfs_add_ordered_extent(inode, start, ins.objectid,
ram_size, cur_alloc_size, 0);
if (ret)
- goto out_reserve;
+ goto out_drop_extent_cache;
if (root->root_key.objectid ==
BTRFS_DATA_RELOC_TREE_OBJECTID) {
ret = btrfs_reloc_clone_csums(inode, start,
cur_alloc_size);
if (ret)
- goto out_reserve;
+ goto out_drop_extent_cache;
}
if (disk_num_bytes < cur_alloc_size)
@@ -994,6 +1010,8 @@ static noinline int cow_file_range(struct inode *inode,
out:
return ret;
+out_drop_extent_cache:
+ btrfs_drop_extent_cache(inode, start, start + ram_size - 1, 0);
out_reserve:
btrfs_free_reserved_extent(root, ins.objectid, ins.offset, 1);
out_unlock:
@@ -1084,8 +1102,10 @@ static int cow_file_range_async(struct inode *inode, struct page *locked_page,
async_cow->end = cur_end;
INIT_LIST_HEAD(&async_cow->extents);
- btrfs_init_work(&async_cow->work, async_cow_start,
- async_cow_submit, async_cow_free);
+ btrfs_init_work(&async_cow->work,
+ btrfs_delalloc_helper,
+ async_cow_start, async_cow_submit,
+ async_cow_free);
nr_pages = (cur_end - start + PAGE_CACHE_SIZE) >>
PAGE_CACHE_SHIFT;
@@ -1869,7 +1889,8 @@ static int btrfs_writepage_start_hook(struct page *page, u64 start, u64 end)
SetPageChecked(page);
page_cache_get(page);
- btrfs_init_work(&fixup->work, btrfs_writepage_fixup_worker, NULL, NULL);
+ btrfs_init_work(&fixup->work, btrfs_fixup_helper,
+ btrfs_writepage_fixup_worker, NULL, NULL);
fixup->page = page;
btrfs_queue_work(root->fs_info->fixup_workers, &fixup->work);
return -EBUSY;
@@ -2810,7 +2831,8 @@ static int btrfs_writepage_end_io_hook(struct page *page, u64 start, u64 end,
struct inode *inode = page->mapping->host;
struct btrfs_root *root = BTRFS_I(inode)->root;
struct btrfs_ordered_extent *ordered_extent = NULL;
- struct btrfs_workqueue *workers;
+ struct btrfs_workqueue *wq;
+ btrfs_work_func_t func;
trace_btrfs_writepage_end_io_hook(page, start, end, uptodate);
@@ -2819,13 +2841,17 @@ static int btrfs_writepage_end_io_hook(struct page *page, u64 start, u64 end,
end - start + 1, uptodate))
return 0;
- btrfs_init_work(&ordered_extent->work, finish_ordered_fn, NULL, NULL);
+ if (btrfs_is_free_space_inode(inode)) {
+ wq = root->fs_info->endio_freespace_worker;
+ func = btrfs_freespace_write_helper;
+ } else {
+ wq = root->fs_info->endio_write_workers;
+ func = btrfs_endio_write_helper;
+ }
- if (btrfs_is_free_space_inode(inode))
- workers = root->fs_info->endio_freespace_worker;
- else
- workers = root->fs_info->endio_write_workers;
- btrfs_queue_work(workers, &ordered_extent->work);
+ btrfs_init_work(&ordered_extent->work, func, finish_ordered_fn, NULL,
+ NULL);
+ btrfs_queue_work(wq, &ordered_extent->work);
return 0;
}
@@ -4222,7 +4248,8 @@ out:
btrfs_abort_transaction(trans, root, ret);
}
error:
- if (last_size != (u64)-1)
+ if (last_size != (u64)-1 &&
+ root->root_key.objectid != BTRFS_TREE_LOG_OBJECTID)
btrfs_ordered_update_i_size(inode, last_size, NULL);
btrfs_free_path(path);
return err;
@@ -4662,6 +4689,11 @@ static void evict_inode_truncate_pages(struct inode *inode)
clear_bit(EXTENT_FLAG_LOGGING, &em->flags);
remove_extent_mapping(map_tree, em);
free_extent_map(em);
+ if (need_resched()) {
+ write_unlock(&map_tree->lock);
+ cond_resched();
+ write_lock(&map_tree->lock);
+ }
}
write_unlock(&map_tree->lock);
@@ -4684,6 +4716,7 @@ static void evict_inode_truncate_pages(struct inode *inode)
&cached_state, GFP_NOFS);
free_extent_state(state);
+ cond_resched();
spin_lock(&io_tree->lock);
}
spin_unlock(&io_tree->lock);
@@ -5169,6 +5202,42 @@ struct inode *btrfs_lookup_dentry(struct inode *dir, struct dentry *dentry)
iput(inode);
inode = ERR_PTR(ret);
}
+ /*
+ * If orphan cleanup did remove any orphans, it means the tree
+ * was modified and therefore the commit root is not the same as
+ * the current root anymore. This is a problem, because send
+ * uses the commit root and therefore can see inode items that
+ * don't exist in the current root anymore, and for example make
+ * calls to btrfs_iget, which will do tree lookups based on the
+ * current root and not on the commit root. Those lookups will
+ * fail, returning a -ESTALE error, and making send fail with
+ * that error. So make sure a send does not see any orphans we
+ * have just removed, and that it will see the same inodes
+ * regardless of whether a transaction commit happened before
+ * it started (meaning that the commit root will be the same as
+ * the current root) or not.
+ */
+ if (sub_root->node != sub_root->commit_root) {
+ u64 sub_flags = btrfs_root_flags(&sub_root->root_item);
+
+ if (sub_flags & BTRFS_ROOT_SUBVOL_RDONLY) {
+ struct extent_buffer *eb;
+
+ /*
+ * Assert we can't have races between dentry
+ * lookup called through the snapshot creation
+ * ioctl and the VFS.
+ */
+ ASSERT(mutex_is_locked(&dir->i_mutex));
+
+ down_write(&root->fs_info->commit_root_sem);
+ eb = sub_root->commit_root;
+ sub_root->commit_root =
+ btrfs_root_node(sub_root);
+ up_write(&root->fs_info->commit_root_sem);
+ free_extent_buffer(eb);
+ }
+ }
}
return inode;
@@ -5565,6 +5634,17 @@ int btrfs_set_inode_index(struct inode *dir, u64 *index)
return ret;
}
+static int btrfs_insert_inode_locked(struct inode *inode)
+{
+ struct btrfs_iget_args args;
+ args.location = &BTRFS_I(inode)->location;
+ args.root = BTRFS_I(inode)->root;
+
+ return insert_inode_locked4(inode,
+ btrfs_inode_hash(inode->i_ino, BTRFS_I(inode)->root),
+ btrfs_find_actor, &args);
+}
+
static struct inode *btrfs_new_inode(struct btrfs_trans_handle *trans,
struct btrfs_root *root,
struct inode *dir,
@@ -5594,6 +5674,13 @@ static struct inode *btrfs_new_inode(struct btrfs_trans_handle *trans,
}
/*
+ * O_TMPFILE, set link count to 0, so that after this point,
+ * we fill in an inode item with the correct link count.
+ */
+ if (!name)
+ set_nlink(inode, 0);
+
+ /*
* we have to initialize this early, so we can reclaim the inode
* number if we fail afterwards in this function.
*/
@@ -5650,10 +5737,19 @@ static struct inode *btrfs_new_inode(struct btrfs_trans_handle *trans,
sizes[1] = name_len + sizeof(*ref);
}
+ location = &BTRFS_I(inode)->location;
+ location->objectid = objectid;
+ location->offset = 0;
+ btrfs_set_key_type(location, BTRFS_INODE_ITEM_KEY);
+
+ ret = btrfs_insert_inode_locked(inode);
+ if (ret < 0)
+ goto fail;
+
path->leave_spinning = 1;
ret = btrfs_insert_empty_items(trans, root, path, key, sizes, nitems);
if (ret != 0)
- goto fail;
+ goto fail_unlock;
inode_init_owner(inode, dir, mode);
inode_set_bytes(inode, 0);
@@ -5676,11 +5772,6 @@ static struct inode *btrfs_new_inode(struct btrfs_trans_handle *trans,
btrfs_mark_buffer_dirty(path->nodes[0]);
btrfs_free_path(path);
- location = &BTRFS_I(inode)->location;
- location->objectid = objectid;
- location->offset = 0;
- btrfs_set_key_type(location, BTRFS_INODE_ITEM_KEY);
-
btrfs_inherit_iflags(inode, dir);
if (S_ISREG(mode)) {
@@ -5691,7 +5782,6 @@ static struct inode *btrfs_new_inode(struct btrfs_trans_handle *trans,
BTRFS_INODE_NODATASUM;
}
- btrfs_insert_inode_hash(inode);
inode_tree_add(inode);
trace_btrfs_inode_new(inode);
@@ -5706,6 +5796,9 @@ static struct inode *btrfs_new_inode(struct btrfs_trans_handle *trans,
btrfs_ino(inode), root->root_key.objectid, ret);
return inode;
+
+fail_unlock:
+ unlock_new_inode(inode);
fail:
if (dir && name)
BTRFS_I(dir)->index_cnt--;
@@ -5840,28 +5933,28 @@ static int btrfs_mknod(struct inode *dir, struct dentry *dentry,
goto out_unlock;
}
- err = btrfs_init_inode_security(trans, inode, dir, &dentry->d_name);
- if (err) {
- drop_inode = 1;
- goto out_unlock;
- }
-
/*
* If the active LSM wants to access the inode during
* d_instantiate it needs these. Smack checks to see
* if the filesystem supports xattrs by looking at the
* ops vector.
*/
-
inode->i_op = &btrfs_special_inode_operations;
- err = btrfs_add_nondir(trans, dir, dentry, inode, 0, index);
+ init_special_inode(inode, inode->i_mode, rdev);
+
+ err = btrfs_init_inode_security(trans, inode, dir, &dentry->d_name);
if (err)
- drop_inode = 1;
- else {
- init_special_inode(inode, inode->i_mode, rdev);
+ goto out_unlock_inode;
+
+ err = btrfs_add_nondir(trans, dir, dentry, inode, 0, index);
+ if (err) {
+ goto out_unlock_inode;
+ } else {
btrfs_update_inode(trans, root, inode);
+ unlock_new_inode(inode);
d_instantiate(dentry, inode);
}
+
out_unlock:
btrfs_end_transaction(trans, root);
btrfs_balance_delayed_items(root);
@@ -5871,6 +5964,12 @@ out_unlock:
iput(inode);
}
return err;
+
+out_unlock_inode:
+ drop_inode = 1;
+ unlock_new_inode(inode);
+ goto out_unlock;
+
}
static int btrfs_create(struct inode *dir, struct dentry *dentry,
@@ -5905,15 +6004,6 @@ static int btrfs_create(struct inode *dir, struct dentry *dentry,
goto out_unlock;
}
drop_inode_on_err = 1;
-
- err = btrfs_init_inode_security(trans, inode, dir, &dentry->d_name);
- if (err)
- goto out_unlock;
-
- err = btrfs_update_inode(trans, root, inode);
- if (err)
- goto out_unlock;
-
/*
* If the active LSM wants to access the inode during
* d_instantiate it needs these. Smack checks to see
@@ -5922,14 +6012,23 @@ static int btrfs_create(struct inode *dir, struct dentry *dentry,
*/
inode->i_fop = &btrfs_file_operations;
inode->i_op = &btrfs_file_inode_operations;
+ inode->i_mapping->a_ops = &btrfs_aops;
+ inode->i_mapping->backing_dev_info = &root->fs_info->bdi;
+
+ err = btrfs_init_inode_security(trans, inode, dir, &dentry->d_name);
+ if (err)
+ goto out_unlock_inode;
+
+ err = btrfs_update_inode(trans, root, inode);
+ if (err)
+ goto out_unlock_inode;
err = btrfs_add_nondir(trans, dir, dentry, inode, 0, index);
if (err)
- goto out_unlock;
+ goto out_unlock_inode;
- inode->i_mapping->a_ops = &btrfs_aops;
- inode->i_mapping->backing_dev_info = &root->fs_info->bdi;
BTRFS_I(inode)->io_tree.ops = &btrfs_extent_io_ops;
+ unlock_new_inode(inode);
d_instantiate(dentry, inode);
out_unlock:
@@ -5941,6 +6040,11 @@ out_unlock:
btrfs_balance_delayed_items(root);
btrfs_btree_balance_dirty(root);
return err;
+
+out_unlock_inode:
+ unlock_new_inode(inode);
+ goto out_unlock;
+
}
static int btrfs_link(struct dentry *old_dentry, struct inode *dir,
@@ -6048,25 +6152,30 @@ static int btrfs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
}
drop_on_err = 1;
+ /* these must be set before we unlock the inode */
+ inode->i_op = &btrfs_dir_inode_operations;
+ inode->i_fop = &btrfs_dir_file_operations;
err = btrfs_init_inode_security(trans, inode, dir, &dentry->d_name);
if (err)
- goto out_fail;
-
- inode->i_op = &btrfs_dir_inode_operations;
- inode->i_fop = &btrfs_dir_file_operations;
+ goto out_fail_inode;
btrfs_i_size_write(inode, 0);
err = btrfs_update_inode(trans, root, inode);
if (err)
- goto out_fail;
+ goto out_fail_inode;
err = btrfs_add_link(trans, dir, inode, dentry->d_name.name,
dentry->d_name.len, 0, index);
if (err)
- goto out_fail;
+ goto out_fail_inode;
d_instantiate(dentry, inode);
+ /*
+ * mkdir is special. We're unlocking after we call d_instantiate
+ * to avoid a race with nfsd calling d_instantiate.
+ */
+ unlock_new_inode(inode);
drop_on_err = 0;
out_fail:
@@ -6076,6 +6185,10 @@ out_fail:
btrfs_balance_delayed_items(root);
btrfs_btree_balance_dirty(root);
return err;
+
+out_fail_inode:
+ unlock_new_inode(inode);
+ goto out_fail;
}
/* helper for btfs_get_extent. Given an existing extent in the tree,
@@ -6085,14 +6198,14 @@ out_fail:
static int merge_extent_mapping(struct extent_map_tree *em_tree,
struct extent_map *existing,
struct extent_map *em,
- u64 map_start, u64 map_len)
+ u64 map_start)
{
u64 start_diff;
BUG_ON(map_start < em->start || map_start >= extent_map_end(em));
start_diff = map_start - em->start;
em->start = map_start;
- em->len = map_len;
+ em->len = existing->start - em->start;
if (em->block_start < EXTENT_MAP_LAST_BYTE &&
!test_bit(EXTENT_FLAG_COMPRESSED, &em->flags)) {
em->block_start += start_diff;
@@ -6263,6 +6376,8 @@ next:
goto not_found;
if (start + len <= found_key.offset)
goto not_found;
+ if (start > found_key.offset)
+ goto next;
em->start = start;
em->orig_start = start;
em->len = found_key.offset - start;
@@ -6378,8 +6493,7 @@ insert:
em->len);
if (existing) {
err = merge_extent_mapping(em_tree, existing,
- em, start,
- root->sectorsize);
+ em, start);
free_extent_map(existing);
if (err) {
free_extent_map(em);
@@ -7146,7 +7260,8 @@ again:
if (!ret)
goto out_test;
- btrfs_init_work(&ordered->work, finish_ordered_fn, NULL, NULL);
+ btrfs_init_work(&ordered->work, btrfs_endio_write_helper,
+ finish_ordered_fn, NULL, NULL);
btrfs_queue_work(root->fs_info->endio_write_workers,
&ordered->work);
out_test:
@@ -7294,10 +7409,8 @@ static int btrfs_submit_direct_hook(int rw, struct btrfs_dio_private *dip,
map_length = orig_bio->bi_iter.bi_size;
ret = btrfs_map_block(root->fs_info, rw, start_sector << 9,
&map_length, NULL, 0);
- if (ret) {
- bio_put(orig_bio);
+ if (ret)
return -EIO;
- }
if (map_length >= orig_bio->bi_iter.bi_size) {
bio = orig_bio;
@@ -7314,6 +7427,7 @@ static int btrfs_submit_direct_hook(int rw, struct btrfs_dio_private *dip,
bio = btrfs_dio_bio_alloc(orig_bio->bi_bdev, start_sector, GFP_NOFS);
if (!bio)
return -ENOMEM;
+
bio->bi_private = dip;
bio->bi_end_io = btrfs_end_dio_bio;
atomic_inc(&dip->pending_bios);
@@ -7522,7 +7636,8 @@ static ssize_t btrfs_direct_IO(int rw, struct kiocb *iocb,
count = iov_iter_count(iter);
if (test_bit(BTRFS_INODE_HAS_ASYNC_EXTENT,
&BTRFS_I(inode)->runtime_flags))
- filemap_fdatawrite_range(inode->i_mapping, offset, count);
+ filemap_fdatawrite_range(inode->i_mapping, offset,
+ offset + count - 1);
if (rw & WRITE) {
/*
@@ -7939,27 +8054,6 @@ static int btrfs_truncate(struct inode *inode)
BUG_ON(ret);
/*
- * setattr is responsible for setting the ordered_data_close flag,
- * but that is only tested during the last file release. That
- * could happen well after the next commit, leaving a great big
- * window where new writes may get lost if someone chooses to write
- * to this file after truncating to zero
- *
- * The inode doesn't have any dirty data here, and so if we commit
- * this is a noop. If someone immediately starts writing to the inode
- * it is very likely we'll catch some of their writes in this
- * transaction, and the commit will find this file on the ordered
- * data list with good things to send down.
- *
- * This is a best effort solution, there is still a window where
- * using truncate to replace the contents of the file will
- * end up with a zero length file after a crash.
- */
- if (inode->i_size == 0 && test_bit(BTRFS_INODE_ORDERED_DATA_CLOSE,
- &BTRFS_I(inode)->runtime_flags))
- btrfs_add_ordered_operation(trans, root, inode);
-
- /*
* So if we truncate and then write and fsync we normally would just
* write the extents that changed, which is a problem if we need to
* first truncate that entire inode. So set this flag so we write out
@@ -8050,6 +8144,7 @@ int btrfs_create_subvol_root(struct btrfs_trans_handle *trans,
set_nlink(inode, 1);
btrfs_i_size_write(inode, 0);
+ unlock_new_inode(inode);
err = btrfs_subvol_inherit_props(trans, new_root, parent_root);
if (err)
@@ -8106,7 +8201,6 @@ struct inode *btrfs_alloc_inode(struct super_block *sb)
mutex_init(&ei->delalloc_mutex);
btrfs_ordered_inode_tree_init(&ei->ordered_tree);
INIT_LIST_HEAD(&ei->delalloc_inodes);
- INIT_LIST_HEAD(&ei->ordered_operations);
RB_CLEAR_NODE(&ei->rb_node);
return inode;
@@ -8146,17 +8240,6 @@ void btrfs_destroy_inode(struct inode *inode)
if (!root)
goto free;
- /*
- * Make sure we're properly removed from the ordered operation
- * lists.
- */
- smp_mb();
- if (!list_empty(&BTRFS_I(inode)->ordered_operations)) {
- spin_lock(&root->fs_info->ordered_root_lock);
- list_del_init(&BTRFS_I(inode)->ordered_operations);
- spin_unlock(&root->fs_info->ordered_root_lock);
- }
-
if (test_bit(BTRFS_INODE_HAS_ORPHAN_ITEM,
&BTRFS_I(inode)->runtime_flags)) {
btrfs_info(root->fs_info, "inode %llu still on the orphan list",
@@ -8338,12 +8421,10 @@ static int btrfs_rename(struct inode *old_dir, struct dentry *old_dentry,
ret = 0;
/*
- * we're using rename to replace one file with another.
- * and the replacement file is large. Start IO on it now so
- * we don't add too much work to the end of the transaction
+ * we're using rename to replace one file with another. Start IO on it
+ * now so we don't add too much work to the end of the transaction
*/
- if (new_inode && S_ISREG(old_inode->i_mode) && new_inode->i_size &&
- old_inode->i_size > BTRFS_ORDERED_OPERATIONS_FLUSH_LIMIT)
+ if (new_inode && S_ISREG(old_inode->i_mode) && new_inode->i_size)
filemap_flush(old_inode->i_mapping);
/* close the racy window with snapshot create/destroy ioctl */
@@ -8391,12 +8472,6 @@ static int btrfs_rename(struct inode *old_dir, struct dentry *old_dentry,
*/
btrfs_pin_log_trans(root);
}
- /*
- * make sure the inode gets flushed if it is replacing
- * something.
- */
- if (new_inode && new_inode->i_size && S_ISREG(old_inode->i_mode))
- btrfs_add_ordered_operation(trans, root, old_inode);
inode_inc_iversion(old_dir);
inode_inc_iversion(new_dir);
@@ -8524,7 +8599,9 @@ struct btrfs_delalloc_work *btrfs_alloc_delalloc_work(struct inode *inode,
work->inode = inode;
work->wait = wait;
work->delay_iput = delay_iput;
- btrfs_init_work(&work->work, btrfs_run_delalloc_work, NULL, NULL);
+ WARN_ON_ONCE(!inode);
+ btrfs_init_work(&work->work, btrfs_flush_delalloc_helper,
+ btrfs_run_delalloc_work, NULL, NULL);
return work;
}
@@ -8728,12 +8805,6 @@ static int btrfs_symlink(struct inode *dir, struct dentry *dentry,
goto out_unlock;
}
- err = btrfs_init_inode_security(trans, inode, dir, &dentry->d_name);
- if (err) {
- drop_inode = 1;
- goto out_unlock;
- }
-
/*
* If the active LSM wants to access the inode during
* d_instantiate it needs these. Smack checks to see
@@ -8742,23 +8813,22 @@ static int btrfs_symlink(struct inode *dir, struct dentry *dentry,
*/
inode->i_fop = &btrfs_file_operations;
inode->i_op = &btrfs_file_inode_operations;
+ inode->i_mapping->a_ops = &btrfs_aops;
+ inode->i_mapping->backing_dev_info = &root->fs_info->bdi;
+ BTRFS_I(inode)->io_tree.ops = &btrfs_extent_io_ops;
+
+ err = btrfs_init_inode_security(trans, inode, dir, &dentry->d_name);
+ if (err)
+ goto out_unlock_inode;
err = btrfs_add_nondir(trans, dir, dentry, inode, 0, index);
if (err)
- drop_inode = 1;
- else {
- inode->i_mapping->a_ops = &btrfs_aops;
- inode->i_mapping->backing_dev_info = &root->fs_info->bdi;
- BTRFS_I(inode)->io_tree.ops = &btrfs_extent_io_ops;
- }
- if (drop_inode)
- goto out_unlock;
+ goto out_unlock_inode;
path = btrfs_alloc_path();
if (!path) {
err = -ENOMEM;
- drop_inode = 1;
- goto out_unlock;
+ goto out_unlock_inode;
}
key.objectid = btrfs_ino(inode);
key.offset = 0;
@@ -8767,9 +8837,8 @@ static int btrfs_symlink(struct inode *dir, struct dentry *dentry,
err = btrfs_insert_empty_item(trans, root, path, &key,
datasize);
if (err) {
- drop_inode = 1;
btrfs_free_path(path);
- goto out_unlock;
+ goto out_unlock_inode;
}
leaf = path->nodes[0];
ei = btrfs_item_ptr(leaf, path->slots[0],
@@ -8793,12 +8862,15 @@ static int btrfs_symlink(struct inode *dir, struct dentry *dentry,
inode_set_bytes(inode, name_len);
btrfs_i_size_write(inode, name_len);
err = btrfs_update_inode(trans, root, inode);
- if (err)
+ if (err) {
drop_inode = 1;
+ goto out_unlock_inode;
+ }
+
+ unlock_new_inode(inode);
+ d_instantiate(dentry, inode);
out_unlock:
- if (!err)
- d_instantiate(dentry, inode);
btrfs_end_transaction(trans, root);
if (drop_inode) {
inode_dec_link_count(inode);
@@ -8806,6 +8878,11 @@ out_unlock:
}
btrfs_btree_balance_dirty(root);
return err;
+
+out_unlock_inode:
+ drop_inode = 1;
+ unlock_new_inode(inode);
+ goto out_unlock;
}
static int __btrfs_prealloc_file_range(struct inode *inode, int mode,
@@ -8989,14 +9066,6 @@ static int btrfs_tmpfile(struct inode *dir, struct dentry *dentry, umode_t mode)
goto out;
}
- ret = btrfs_init_inode_security(trans, inode, dir, NULL);
- if (ret)
- goto out;
-
- ret = btrfs_update_inode(trans, root, inode);
- if (ret)
- goto out;
-
inode->i_fop = &btrfs_file_operations;
inode->i_op = &btrfs_file_inode_operations;
@@ -9004,10 +9073,26 @@ static int btrfs_tmpfile(struct inode *dir, struct dentry *dentry, umode_t mode)
inode->i_mapping->backing_dev_info = &root->fs_info->bdi;
BTRFS_I(inode)->io_tree.ops = &btrfs_extent_io_ops;
+ ret = btrfs_init_inode_security(trans, inode, dir, NULL);
+ if (ret)
+ goto out_inode;
+
+ ret = btrfs_update_inode(trans, root, inode);
+ if (ret)
+ goto out_inode;
ret = btrfs_orphan_add(trans, inode);
if (ret)
- goto out;
+ goto out_inode;
+ /*
+ * We set number of links to 0 in btrfs_new_inode(), and here we set
+ * it to 1 because d_tmpfile() will issue a warning if the count is 0,
+ * through:
+ *
+ * d_tmpfile() -> inode_dec_link_count() -> drop_nlink()
+ */
+ set_nlink(inode, 1);
+ unlock_new_inode(inode);
d_tmpfile(dentry, inode);
mark_inode_dirty(inode);
@@ -9017,8 +9102,12 @@ out:
iput(inode);
btrfs_balance_delayed_items(root);
btrfs_btree_balance_dirty(root);
-
return ret;
+
+out_inode:
+ unlock_new_inode(inode);
+ goto out;
+
}
static const struct inode_operations btrfs_dir_inode_operations = {
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index 47aceb494d1d..8a8e29878c34 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -711,39 +711,6 @@ static int create_snapshot(struct btrfs_root *root, struct inode *dir,
if (ret)
goto fail;
- ret = btrfs_orphan_cleanup(pending_snapshot->snap);
- if (ret)
- goto fail;
-
- /*
- * If orphan cleanup did remove any orphans, it means the tree was
- * modified and therefore the commit root is not the same as the
- * current root anymore. This is a problem, because send uses the
- * commit root and therefore can see inode items that don't exist
- * in the current root anymore, and for example make calls to
- * btrfs_iget, which will do tree lookups based on the current root
- * and not on the commit root. Those lookups will fail, returning a
- * -ESTALE error, and making send fail with that error. So make sure
- * a send does not see any orphans we have just removed, and that it
- * will see the same inodes regardless of whether a transaction
- * commit happened before it started (meaning that the commit root
- * will be the same as the current root) or not.
- */
- if (readonly && pending_snapshot->snap->node !=
- pending_snapshot->snap->commit_root) {
- trans = btrfs_join_transaction(pending_snapshot->snap);
- if (IS_ERR(trans) && PTR_ERR(trans) != -ENOENT) {
- ret = PTR_ERR(trans);
- goto fail;
- }
- if (!IS_ERR(trans)) {
- ret = btrfs_commit_transaction(trans,
- pending_snapshot->snap);
- if (ret)
- goto fail;
- }
- }
-
inode = btrfs_lookup_dentry(dentry->d_parent->d_inode, dentry);
if (IS_ERR(inode)) {
ret = PTR_ERR(inode);
@@ -1052,8 +1019,10 @@ static bool defrag_check_next_extent(struct inode *inode, struct extent_map *em)
return false;
next = defrag_lookup_extent(inode, em->start + em->len);
- if (!next || next->block_start >= EXTENT_MAP_LAST_BYTE ||
- (em->block_start + em->block_len == next->block_start))
+ if (!next || next->block_start >= EXTENT_MAP_LAST_BYTE)
+ ret = false;
+ else if ((em->block_start + em->block_len == next->block_start) &&
+ (em->block_len > 128 * 1024 && next->block_len > 128 * 1024))
ret = false;
free_extent_map(next);
@@ -1088,7 +1057,6 @@ static int should_defrag_range(struct inode *inode, u64 start, int thresh,
}
next_mergeable = defrag_check_next_extent(inode, em);
-
/*
* we hit a real extent, if it is big or the next extent is not a
* real extent, don't bother defragging it
@@ -1735,7 +1703,7 @@ static noinline int btrfs_ioctl_snap_create_v2(struct file *file,
~(BTRFS_SUBVOL_CREATE_ASYNC | BTRFS_SUBVOL_RDONLY |
BTRFS_SUBVOL_QGROUP_INHERIT)) {
ret = -EOPNOTSUPP;
- goto out;
+ goto free_args;
}
if (vol_args->flags & BTRFS_SUBVOL_CREATE_ASYNC)
@@ -1745,27 +1713,31 @@ static noinline int btrfs_ioctl_snap_create_v2(struct file *file,
if (vol_args->flags & BTRFS_SUBVOL_QGROUP_INHERIT) {
if (vol_args->size > PAGE_CACHE_SIZE) {
ret = -EINVAL;
- goto out;
+ goto free_args;
}
inherit = memdup_user(vol_args->qgroup_inherit, vol_args->size);
if (IS_ERR(inherit)) {
ret = PTR_ERR(inherit);
- goto out;
+ goto free_args;
}
}
ret = btrfs_ioctl_snap_create_transid(file, vol_args->name,
vol_args->fd, subvol, ptr,
readonly, inherit);
+ if (ret)
+ goto free_inherit;
- if (ret == 0 && ptr &&
- copy_to_user(arg +
- offsetof(struct btrfs_ioctl_vol_args_v2,
- transid), ptr, sizeof(*ptr)))
+ if (ptr && copy_to_user(arg +
+ offsetof(struct btrfs_ioctl_vol_args_v2,
+ transid),
+ ptr, sizeof(*ptr)))
ret = -EFAULT;
-out:
- kfree(vol_args);
+
+free_inherit:
kfree(inherit);
+free_args:
+ kfree(vol_args);
return ret;
}
@@ -2685,7 +2657,7 @@ static long btrfs_ioctl_rm_dev(struct file *file, void __user *arg)
vol_args = memdup_user(arg, sizeof(*vol_args));
if (IS_ERR(vol_args)) {
ret = PTR_ERR(vol_args);
- goto out;
+ goto err_drop;
}
vol_args->name[BTRFS_PATH_NAME_MAX] = '\0';
@@ -2703,6 +2675,7 @@ static long btrfs_ioctl_rm_dev(struct file *file, void __user *arg)
out:
kfree(vol_args);
+err_drop:
mnt_drop_write_file(file);
return ret;
}
@@ -3527,7 +3500,8 @@ process_slot:
btrfs_mark_buffer_dirty(leaf);
btrfs_release_path(path);
- last_dest_end = new_key.offset + datal;
+ last_dest_end = ALIGN(new_key.offset + datal,
+ root->sectorsize);
ret = clone_finish_inode_update(trans, inode,
last_dest_end,
destoff, olen);
diff --git a/fs/btrfs/ordered-data.c b/fs/btrfs/ordered-data.c
index 7187b14faa6c..ac734ec4cc20 100644
--- a/fs/btrfs/ordered-data.c
+++ b/fs/btrfs/ordered-data.c
@@ -571,18 +571,6 @@ void btrfs_remove_ordered_extent(struct inode *inode,
trace_btrfs_ordered_extent_remove(inode, entry);
- /*
- * we have no more ordered extents for this inode and
- * no dirty pages. We can safely remove it from the
- * list of ordered extents
- */
- if (RB_EMPTY_ROOT(&tree->tree) &&
- !mapping_tagged(inode->i_mapping, PAGECACHE_TAG_DIRTY)) {
- spin_lock(&root->fs_info->ordered_root_lock);
- list_del_init(&BTRFS_I(inode)->ordered_operations);
- spin_unlock(&root->fs_info->ordered_root_lock);
- }
-
if (!root->nr_ordered_extents) {
spin_lock(&root->fs_info->ordered_root_lock);
BUG_ON(list_empty(&root->ordered_root));
@@ -627,6 +615,7 @@ int btrfs_wait_ordered_extents(struct btrfs_root *root, int nr)
spin_unlock(&root->ordered_extent_lock);
btrfs_init_work(&ordered->flush_work,
+ btrfs_flush_delalloc_helper,
btrfs_run_ordered_extent_work, NULL, NULL);
list_add_tail(&ordered->work_list, &works);
btrfs_queue_work(root->fs_info->flush_workers,
@@ -687,81 +676,6 @@ void btrfs_wait_ordered_roots(struct btrfs_fs_info *fs_info, int nr)
}
/*
- * this is used during transaction commit to write all the inodes
- * added to the ordered operation list. These files must be fully on
- * disk before the transaction commits.
- *
- * we have two modes here, one is to just start the IO via filemap_flush
- * and the other is to wait for all the io. When we wait, we have an
- * extra check to make sure the ordered operation list really is empty
- * before we return
- */
-int btrfs_run_ordered_operations(struct btrfs_trans_handle *trans,
- struct btrfs_root *root, int wait)
-{
- struct btrfs_inode *btrfs_inode;
- struct inode *inode;
- struct btrfs_transaction *cur_trans = trans->transaction;
- struct list_head splice;
- struct list_head works;
- struct btrfs_delalloc_work *work, *next;
- int ret = 0;
-
- INIT_LIST_HEAD(&splice);
- INIT_LIST_HEAD(&works);
-
- mutex_lock(&root->fs_info->ordered_extent_flush_mutex);
- spin_lock(&root->fs_info->ordered_root_lock);
- list_splice_init(&cur_trans->ordered_operations, &splice);
- while (!list_empty(&splice)) {
- btrfs_inode = list_entry(splice.next, struct btrfs_inode,
- ordered_operations);
- inode = &btrfs_inode->vfs_inode;
-
- list_del_init(&btrfs_inode->ordered_operations);
-
- /*
- * the inode may be getting freed (in sys_unlink path).
- */
- inode = igrab(inode);
- if (!inode)
- continue;
-
- if (!wait)
- list_add_tail(&BTRFS_I(inode)->ordered_operations,
- &cur_trans->ordered_operations);
- spin_unlock(&root->fs_info->ordered_root_lock);
-
- work = btrfs_alloc_delalloc_work(inode, wait, 1);
- if (!work) {
- spin_lock(&root->fs_info->ordered_root_lock);
- if (list_empty(&BTRFS_I(inode)->ordered_operations))
- list_add_tail(&btrfs_inode->ordered_operations,
- &splice);
- list_splice_tail(&splice,
- &cur_trans->ordered_operations);
- spin_unlock(&root->fs_info->ordered_root_lock);
- ret = -ENOMEM;
- goto out;
- }
- list_add_tail(&work->list, &works);
- btrfs_queue_work(root->fs_info->flush_workers,
- &work->work);
-
- cond_resched();
- spin_lock(&root->fs_info->ordered_root_lock);
- }
- spin_unlock(&root->fs_info->ordered_root_lock);
-out:
- list_for_each_entry_safe(work, next, &works, list) {
- list_del_init(&work->list);
- btrfs_wait_and_free_delalloc_work(work);
- }
- mutex_unlock(&root->fs_info->ordered_extent_flush_mutex);
- return ret;
-}
-
-/*
* Used to start IO or wait for a given ordered extent to finish.
*
* If wait is one, this effectively waits on page writeback for all the pages
@@ -1120,42 +1034,6 @@ out:
return index;
}
-
-/*
- * add a given inode to the list of inodes that must be fully on
- * disk before a transaction commit finishes.
- *
- * This basically gives us the ext3 style data=ordered mode, and it is mostly
- * used to make sure renamed files are fully on disk.
- *
- * It is a noop if the inode is already fully on disk.
- *
- * If trans is not null, we'll do a friendly check for a transaction that
- * is already flushing things and force the IO down ourselves.
- */
-void btrfs_add_ordered_operation(struct btrfs_trans_handle *trans,
- struct btrfs_root *root, struct inode *inode)
-{
- struct btrfs_transaction *cur_trans = trans->transaction;
- u64 last_mod;
-
- last_mod = max(BTRFS_I(inode)->generation, BTRFS_I(inode)->last_trans);
-
- /*
- * if this file hasn't been changed since the last transaction
- * commit, we can safely return without doing anything
- */
- if (last_mod <= root->fs_info->last_trans_committed)
- return;
-
- spin_lock(&root->fs_info->ordered_root_lock);
- if (list_empty(&BTRFS_I(inode)->ordered_operations)) {
- list_add_tail(&BTRFS_I(inode)->ordered_operations,
- &cur_trans->ordered_operations);
- }
- spin_unlock(&root->fs_info->ordered_root_lock);
-}
-
int __init ordered_data_init(void)
{
btrfs_ordered_extent_cache = kmem_cache_create("btrfs_ordered_extent",
diff --git a/fs/btrfs/ordered-data.h b/fs/btrfs/ordered-data.h
index 246897058efb..d81a274d621e 100644
--- a/fs/btrfs/ordered-data.h
+++ b/fs/btrfs/ordered-data.h
@@ -190,11 +190,6 @@ int btrfs_ordered_update_i_size(struct inode *inode, u64 offset,
struct btrfs_ordered_extent *ordered);
int btrfs_find_ordered_sum(struct inode *inode, u64 offset, u64 disk_bytenr,
u32 *sum, int len);
-int btrfs_run_ordered_operations(struct btrfs_trans_handle *trans,
- struct btrfs_root *root, int wait);
-void btrfs_add_ordered_operation(struct btrfs_trans_handle *trans,
- struct btrfs_root *root,
- struct inode *inode);
int btrfs_wait_ordered_extents(struct btrfs_root *root, int nr);
void btrfs_wait_ordered_roots(struct btrfs_fs_info *fs_info, int nr);
void btrfs_get_logged_extents(struct inode *inode,
diff --git a/fs/btrfs/qgroup.c b/fs/btrfs/qgroup.c
index 98cb6b2630f9..ded5c601d916 100644
--- a/fs/btrfs/qgroup.c
+++ b/fs/btrfs/qgroup.c
@@ -1201,6 +1201,50 @@ out:
mutex_unlock(&fs_info->qgroup_ioctl_lock);
return ret;
}
+
+static int comp_oper_exist(struct btrfs_qgroup_operation *oper1,
+ struct btrfs_qgroup_operation *oper2)
+{
+ /*
+ * Ignore seq and type here, we're looking for any operation
+ * at all related to this extent on that root.
+ */
+ if (oper1->bytenr < oper2->bytenr)
+ return -1;
+ if (oper1->bytenr > oper2->bytenr)
+ return 1;
+ if (oper1->ref_root < oper2->ref_root)
+ return -1;
+ if (oper1->ref_root > oper2->ref_root)
+ return 1;
+ return 0;
+}
+
+static int qgroup_oper_exists(struct btrfs_fs_info *fs_info,
+ struct btrfs_qgroup_operation *oper)
+{
+ struct rb_node *n;
+ struct btrfs_qgroup_operation *cur;
+ int cmp;
+
+ spin_lock(&fs_info->qgroup_op_lock);
+ n = fs_info->qgroup_op_tree.rb_node;
+ while (n) {
+ cur = rb_entry(n, struct btrfs_qgroup_operation, n);
+ cmp = comp_oper_exist(cur, oper);
+ if (cmp < 0) {
+ n = n->rb_right;
+ } else if (cmp) {
+ n = n->rb_left;
+ } else {
+ spin_unlock(&fs_info->qgroup_op_lock);
+ return -EEXIST;
+ }
+ }
+ spin_unlock(&fs_info->qgroup_op_lock);
+ return 0;
+}
+
static int comp_oper(struct btrfs_qgroup_operation *oper1,
struct btrfs_qgroup_operation *oper2)
{
@@ -1290,6 +1334,23 @@ int btrfs_qgroup_record_ref(struct btrfs_trans_handle *trans,
oper->seq = atomic_inc_return(&fs_info->qgroup_op_seq);
INIT_LIST_HEAD(&oper->elem.list);
oper->elem.seq = 0;
+
+ if (type == BTRFS_QGROUP_OPER_SUB_SUBTREE) {
+ /*
+ * If any operation for this bytenr/ref_root combo
+ * exists, then we know it's not exclusively owned and
+ * shouldn't be queued up.
+ *
+ * This also catches the case where we have a cloned
+ * extent that gets queued up multiple times during
+ * drop snapshot.
+ */
+ if (qgroup_oper_exists(fs_info, oper)) {
+ kfree(oper);
+ return 0;
+ }
+ }
+
ret = insert_qgroup_oper(fs_info, oper);
if (ret) {
/* Shouldn't happen so have an assert for developers */
@@ -1884,6 +1945,111 @@ out:
}
/*
+ * Process a reference to a shared subtree. This type of operation is
+ * queued during snapshot removal when we encounter extents which are
+ * shared between more than one root.
+ */
+static int qgroup_subtree_accounting(struct btrfs_trans_handle *trans,
+ struct btrfs_fs_info *fs_info,
+ struct btrfs_qgroup_operation *oper)
+{
+ struct ulist *roots = NULL;
+ struct ulist_node *unode;
+ struct ulist_iterator uiter;
+ struct btrfs_qgroup_list *glist;
+ struct ulist *parents;
+ int ret = 0;
+ int err;
+ struct btrfs_qgroup *qg;
+ u64 root_obj = 0;
+ struct seq_list elem = {};
+
+ parents = ulist_alloc(GFP_NOFS);
+ if (!parents)
+ return -ENOMEM;
+
+ btrfs_get_tree_mod_seq(fs_info, &elem);
+ ret = btrfs_find_all_roots(trans, fs_info, oper->bytenr,
+ elem.seq, &roots);
+ btrfs_put_tree_mod_seq(fs_info, &elem);
+ if (ret < 0)
+ goto out;
+
+ if (roots->nnodes != 1)
+ goto out;
+
+ ULIST_ITER_INIT(&uiter);
+ unode = ulist_next(roots, &uiter); /* Only want 1 so no need to loop */
+ /*
+ * If we find our ref root then that means all refs
+ * this extent has to the root have not yet been
+ * deleted. In that case, we do nothing and let the
+ * last ref for this bytenr drive our update.
+ *
+ * This can happen for example if an extent is
+ * referenced multiple times in a snapshot (clone,
+ * etc). If we are in the middle of snapshot removal,
+ * queued updates for such an extent will find the
+ * root if we have not yet finished removing the
+ * snapshot.
+ */
+ if (unode->val == oper->ref_root)
+ goto out;
+
+ root_obj = unode->val;
+ BUG_ON(!root_obj);
+
+ spin_lock(&fs_info->qgroup_lock);
+ qg = find_qgroup_rb(fs_info, root_obj);
+ if (!qg)
+ goto out_unlock;
+
+ qg->excl += oper->num_bytes;
+ qg->excl_cmpr += oper->num_bytes;
+ qgroup_dirty(fs_info, qg);
+
+ /*
+ * Adjust counts for parent groups. First we find all
+ * parents, then in the 2nd loop we do the adjustment
+ * while adding parents of the parents to our ulist.
+ */
+ list_for_each_entry(glist, &qg->groups, next_group) {
+ err = ulist_add(parents, glist->group->qgroupid,
+ ptr_to_u64(glist->group), GFP_ATOMIC);
+ if (err < 0) {
+ ret = err;
+ goto out_unlock;
+ }
+ }
+
+ ULIST_ITER_INIT(&uiter);
+ while ((unode = ulist_next(parents, &uiter))) {
+ qg = u64_to_ptr(unode->aux);
+ qg->excl += oper->num_bytes;
+ qg->excl_cmpr += oper->num_bytes;
+ qgroup_dirty(fs_info, qg);
+
+ /* Add any parents of the parents */
+ list_for_each_entry(glist, &qg->groups, next_group) {
+ err = ulist_add(parents, glist->group->qgroupid,
+ ptr_to_u64(glist->group), GFP_ATOMIC);
+ if (err < 0) {
+ ret = err;
+ goto out_unlock;
+ }
+ }
+ }
+
+out_unlock:
+ spin_unlock(&fs_info->qgroup_lock);
+
+out:
+ ulist_free(roots);
+ ulist_free(parents);
+ return ret;
+}
+
+/*
* btrfs_qgroup_account_ref is called for every ref that is added to or deleted
* from the fs. First, all roots referencing the extent are searched, and
* then the space is accounted accordingly to the different roots. The
@@ -1920,6 +2086,9 @@ static int btrfs_qgroup_account(struct btrfs_trans_handle *trans,
case BTRFS_QGROUP_OPER_SUB_SHARED:
ret = qgroup_shared_accounting(trans, fs_info, oper);
break;
+ case BTRFS_QGROUP_OPER_SUB_SUBTREE:
+ ret = qgroup_subtree_accounting(trans, fs_info, oper);
+ break;
default:
ASSERT(0);
}
@@ -2551,6 +2720,7 @@ qgroup_rescan_init(struct btrfs_fs_info *fs_info, u64 progress_objectid,
memset(&fs_info->qgroup_rescan_work, 0,
sizeof(fs_info->qgroup_rescan_work));
btrfs_init_work(&fs_info->qgroup_rescan_work,
+ btrfs_qgroup_rescan_helper,
btrfs_qgroup_rescan_worker, NULL, NULL);
if (ret) {
diff --git a/fs/btrfs/qgroup.h b/fs/btrfs/qgroup.h
index 5952ff1fbd7a..18cc68ca3090 100644
--- a/fs/btrfs/qgroup.h
+++ b/fs/btrfs/qgroup.h
@@ -44,6 +44,7 @@ enum btrfs_qgroup_operation_type {
BTRFS_QGROUP_OPER_ADD_SHARED,
BTRFS_QGROUP_OPER_SUB_EXCL,
BTRFS_QGROUP_OPER_SUB_SHARED,
+ BTRFS_QGROUP_OPER_SUB_SUBTREE,
};
struct btrfs_qgroup_operation {
diff --git a/fs/btrfs/raid56.c b/fs/btrfs/raid56.c
index 4a88f073fdd7..0a6b6e4bcbb9 100644
--- a/fs/btrfs/raid56.c
+++ b/fs/btrfs/raid56.c
@@ -1416,7 +1416,8 @@ cleanup:
static void async_rmw_stripe(struct btrfs_raid_bio *rbio)
{
- btrfs_init_work(&rbio->work, rmw_work, NULL, NULL);
+ btrfs_init_work(&rbio->work, btrfs_rmw_helper,
+ rmw_work, NULL, NULL);
btrfs_queue_work(rbio->fs_info->rmw_workers,
&rbio->work);
@@ -1424,7 +1425,8 @@ static void async_rmw_stripe(struct btrfs_raid_bio *rbio)
static void async_read_rebuild(struct btrfs_raid_bio *rbio)
{
- btrfs_init_work(&rbio->work, read_rebuild_work, NULL, NULL);
+ btrfs_init_work(&rbio->work, btrfs_rmw_helper,
+ read_rebuild_work, NULL, NULL);
btrfs_queue_work(rbio->fs_info->rmw_workers,
&rbio->work);
@@ -1665,7 +1667,8 @@ static void btrfs_raid_unplug(struct blk_plug_cb *cb, bool from_schedule)
plug = container_of(cb, struct btrfs_plug_cb, cb);
if (from_schedule) {
- btrfs_init_work(&plug->work, unplug_work, NULL, NULL);
+ btrfs_init_work(&plug->work, btrfs_rmw_helper,
+ unplug_work, NULL, NULL);
btrfs_queue_work(plug->info->rmw_workers,
&plug->work);
return;
diff --git a/fs/btrfs/reada.c b/fs/btrfs/reada.c
index 09230cf3a244..20408c6b665a 100644
--- a/fs/btrfs/reada.c
+++ b/fs/btrfs/reada.c
@@ -798,7 +798,8 @@ static void reada_start_machine(struct btrfs_fs_info *fs_info)
/* FIXME we cannot handle this properly right now */
BUG();
}
- btrfs_init_work(&rmw->work, reada_start_machine_worker, NULL, NULL);
+ btrfs_init_work(&rmw->work, btrfs_readahead_helper,
+ reada_start_machine_worker, NULL, NULL);
rmw->fs_info = fs_info;
btrfs_queue_work(fs_info->readahead_workers, &rmw->work);
diff --git a/fs/btrfs/scrub.c b/fs/btrfs/scrub.c
index b6d198f5181e..f4a41f37be22 100644
--- a/fs/btrfs/scrub.c
+++ b/fs/btrfs/scrub.c
@@ -428,8 +428,8 @@ struct scrub_ctx *scrub_setup_ctx(struct btrfs_device *dev, int is_dev_replace)
sbio->index = i;
sbio->sctx = sctx;
sbio->page_count = 0;
- btrfs_init_work(&sbio->work, scrub_bio_end_io_worker,
- NULL, NULL);
+ btrfs_init_work(&sbio->work, btrfs_scrub_helper,
+ scrub_bio_end_io_worker, NULL, NULL);
if (i != SCRUB_BIOS_PER_SCTX - 1)
sctx->bios[i]->next_free = i + 1;
@@ -999,8 +999,8 @@ nodatasum_case:
fixup_nodatasum->root = fs_info->extent_root;
fixup_nodatasum->mirror_num = failed_mirror_index + 1;
scrub_pending_trans_workers_inc(sctx);
- btrfs_init_work(&fixup_nodatasum->work, scrub_fixup_nodatasum,
- NULL, NULL);
+ btrfs_init_work(&fixup_nodatasum->work, btrfs_scrub_helper,
+ scrub_fixup_nodatasum, NULL, NULL);
btrfs_queue_work(fs_info->scrub_workers,
&fixup_nodatasum->work);
goto out;
@@ -1616,7 +1616,8 @@ static void scrub_wr_bio_end_io(struct bio *bio, int err)
sbio->err = err;
sbio->bio = bio;
- btrfs_init_work(&sbio->work, scrub_wr_bio_end_io_worker, NULL, NULL);
+ btrfs_init_work(&sbio->work, btrfs_scrubwrc_helper,
+ scrub_wr_bio_end_io_worker, NULL, NULL);
btrfs_queue_work(fs_info->scrub_wr_completion_workers, &sbio->work);
}
@@ -2904,6 +2905,7 @@ int btrfs_scrub_dev(struct btrfs_fs_info *fs_info, u64 devid, u64 start,
struct scrub_ctx *sctx;
int ret;
struct btrfs_device *dev;
+ struct rcu_string *name;
if (btrfs_fs_closing(fs_info))
return -EINVAL;
@@ -2965,6 +2967,16 @@ int btrfs_scrub_dev(struct btrfs_fs_info *fs_info, u64 devid, u64 start,
return -ENODEV;
}
+ if (!is_dev_replace && !readonly && !dev->writeable) {
+ mutex_unlock(&fs_info->fs_devices->device_list_mutex);
+ rcu_read_lock();
+ name = rcu_dereference(dev->name);
+ btrfs_err(fs_info, "scrub: device %s is not writable",
+ name->str);
+ rcu_read_unlock();
+ return -EROFS;
+ }
+
mutex_lock(&fs_info->scrub_lock);
if (!dev->in_fs_metadata || dev->is_tgtdev_for_dev_replace) {
mutex_unlock(&fs_info->scrub_lock);
@@ -3203,7 +3215,8 @@ static int copy_nocow_pages(struct scrub_ctx *sctx, u64 logical, u64 len,
nocow_ctx->len = len;
nocow_ctx->mirror_num = mirror_num;
nocow_ctx->physical_for_dev_replace = physical_for_dev_replace;
- btrfs_init_work(&nocow_ctx->work, copy_nocow_pages_worker, NULL, NULL);
+ btrfs_init_work(&nocow_ctx->work, btrfs_scrubnc_helper,
+ copy_nocow_pages_worker, NULL, NULL);
INIT_LIST_HEAD(&nocow_ctx->inodes);
btrfs_queue_work(fs_info->scrub_nocow_workers,
&nocow_ctx->work);
diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
index 67b48b9a03e0..c4124de4435b 100644
--- a/fs/btrfs/super.c
+++ b/fs/btrfs/super.c
@@ -1665,6 +1665,21 @@ static int btrfs_calc_avail_data_space(struct btrfs_root *root, u64 *free_bytes)
return 0;
}
+/*
+ * Calculate numbers for 'df', pessimistic in case of mixed raid profiles.
+ *
+ * If there's a redundant raid level at DATA block groups, use the respective
+ * multiplier to scale the sizes.
+ *
+ * Unused device space usage is based on simulating the chunk allocator
+ * algorithm that respects the device sizes, order of allocations and the
+ * 'alloc_start' value, this is a close approximation of the actual use but
+ * there are other factors that may change the result (like a new metadata
+ * chunk).
+ *
+ * FIXME: not accurate for mixed block groups, total and free/used are ok,
+ * available appears slightly larger.
+ */
static int btrfs_statfs(struct dentry *dentry, struct kstatfs *buf)
{
struct btrfs_fs_info *fs_info = btrfs_sb(dentry->d_sb);
@@ -1675,6 +1690,8 @@ static int btrfs_statfs(struct dentry *dentry, struct kstatfs *buf)
u64 total_free_data = 0;
int bits = dentry->d_sb->s_blocksize_bits;
__be32 *fsid = (__be32 *)fs_info->fsid;
+ unsigned factor = 1;
+ struct btrfs_block_rsv *block_rsv = &fs_info->global_block_rsv;
int ret;
/* holding chunk_muext to avoid allocating new chunks */
@@ -1682,30 +1699,52 @@ static int btrfs_statfs(struct dentry *dentry, struct kstatfs *buf)
rcu_read_lock();
list_for_each_entry_rcu(found, head, list) {
if (found->flags & BTRFS_BLOCK_GROUP_DATA) {
+ int i;
+
total_free_data += found->disk_total - found->disk_used;
total_free_data -=
btrfs_account_ro_block_groups_free_space(found);
+
+ for (i = 0; i < BTRFS_NR_RAID_TYPES; i++) {
+ if (!list_empty(&found->block_groups[i])) {
+ switch (i) {
+ case BTRFS_RAID_DUP:
+ case BTRFS_RAID_RAID1:
+ case BTRFS_RAID_RAID10:
+ factor = 2;
+ }
+ }
+ }
}
total_used += found->disk_used;
}
+
rcu_read_unlock();
- buf->f_namelen = BTRFS_NAME_LEN;
- buf->f_blocks = btrfs_super_total_bytes(disk_super) >> bits;
- buf->f_bfree = buf->f_blocks - (total_used >> bits);
- buf->f_bsize = dentry->d_sb->s_blocksize;
- buf->f_type = BTRFS_SUPER_MAGIC;
+ buf->f_blocks = div_u64(btrfs_super_total_bytes(disk_super), factor);
+ buf->f_blocks >>= bits;
+ buf->f_bfree = buf->f_blocks - (div_u64(total_used, factor) >> bits);
+
+ /* Account global block reserve as used, it's in logical size already */
+ spin_lock(&block_rsv->lock);
+ buf->f_bfree -= block_rsv->size >> bits;
+ spin_unlock(&block_rsv->lock);
+
buf->f_bavail = total_free_data;
ret = btrfs_calc_avail_data_space(fs_info->tree_root, &total_free_data);
if (ret) {
mutex_unlock(&fs_info->chunk_mutex);
return ret;
}
- buf->f_bavail += total_free_data;
+ buf->f_bavail += div_u64(total_free_data, factor);
buf->f_bavail = buf->f_bavail >> bits;
mutex_unlock(&fs_info->chunk_mutex);
+ buf->f_type = BTRFS_SUPER_MAGIC;
+ buf->f_bsize = dentry->d_sb->s_blocksize;
+ buf->f_namelen = BTRFS_NAME_LEN;
+
/* We treat it as constant endianness (it doesn't matter _which_)
because we want the fsid to come out the same whether mounted
on a big-endian or little-endian host */
diff --git a/fs/btrfs/sysfs.c b/fs/btrfs/sysfs.c
index 78699364f537..12e53556e214 100644
--- a/fs/btrfs/sysfs.c
+++ b/fs/btrfs/sysfs.c
@@ -614,7 +614,7 @@ int btrfs_kobj_rm_device(struct btrfs_fs_info *fs_info,
if (!fs_info->device_dir_kobj)
return -EINVAL;
- if (one_device) {
+ if (one_device && one_device->bdev) {
disk = one_device->bdev->bd_part;
disk_kobj = &part_to_dev(disk)->kobj;
diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c
index 5f379affdf23..d89c6d3542ca 100644
--- a/fs/btrfs/transaction.c
+++ b/fs/btrfs/transaction.c
@@ -218,7 +218,6 @@ loop:
spin_lock_init(&cur_trans->delayed_refs.lock);
INIT_LIST_HEAD(&cur_trans->pending_snapshots);
- INIT_LIST_HEAD(&cur_trans->ordered_operations);
INIT_LIST_HEAD(&cur_trans->pending_chunks);
INIT_LIST_HEAD(&cur_trans->switch_commits);
list_add_tail(&cur_trans->list, &fs_info->trans_list);
@@ -1612,27 +1611,6 @@ static void cleanup_transaction(struct btrfs_trans_handle *trans,
kmem_cache_free(btrfs_trans_handle_cachep, trans);
}
-static int btrfs_flush_all_pending_stuffs(struct btrfs_trans_handle *trans,
- struct btrfs_root *root)
-{
- int ret;
-
- ret = btrfs_run_delayed_items(trans, root);
- if (ret)
- return ret;
-
- /*
- * rename don't use btrfs_join_transaction, so, once we
- * set the transaction to blocked above, we aren't going
- * to get any new ordered operations. We can safely run
- * it here and no for sure that nothing new will be added
- * to the list
- */
- ret = btrfs_run_ordered_operations(trans, root, 1);
-
- return ret;
-}
-
static inline int btrfs_start_delalloc_flush(struct btrfs_fs_info *fs_info)
{
if (btrfs_test_opt(fs_info->tree_root, FLUSHONCOMMIT))
@@ -1653,13 +1631,6 @@ int btrfs_commit_transaction(struct btrfs_trans_handle *trans,
struct btrfs_transaction *prev_trans = NULL;
int ret;
- ret = btrfs_run_ordered_operations(trans, root, 0);
- if (ret) {
- btrfs_abort_transaction(trans, root, ret);
- btrfs_end_transaction(trans, root);
- return ret;
- }
-
/* Stop the commit early if ->aborted is set */
if (unlikely(ACCESS_ONCE(cur_trans->aborted))) {
ret = cur_trans->aborted;
@@ -1740,7 +1711,7 @@ int btrfs_commit_transaction(struct btrfs_trans_handle *trans,
if (ret)
goto cleanup_transaction;
- ret = btrfs_flush_all_pending_stuffs(trans, root);
+ ret = btrfs_run_delayed_items(trans, root);
if (ret)
goto cleanup_transaction;
@@ -1748,7 +1719,7 @@ int btrfs_commit_transaction(struct btrfs_trans_handle *trans,
extwriter_counter_read(cur_trans) == 0);
/* some pending stuffs might be added after the previous flush. */
- ret = btrfs_flush_all_pending_stuffs(trans, root);
+ ret = btrfs_run_delayed_items(trans, root);
if (ret)
goto cleanup_transaction;
diff --git a/fs/btrfs/transaction.h b/fs/btrfs/transaction.h
index 7dd558ed0716..579be51b27e5 100644
--- a/fs/btrfs/transaction.h
+++ b/fs/btrfs/transaction.h
@@ -55,7 +55,6 @@ struct btrfs_transaction {
wait_queue_head_t writer_wait;
wait_queue_head_t commit_wait;
struct list_head pending_snapshots;
- struct list_head ordered_operations;
struct list_head pending_chunks;
struct list_head switch_commits;
struct btrfs_delayed_ref_root delayed_refs;
diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c
index 9e1f2cd5e67a..1d1ba083ca6e 100644
--- a/fs/btrfs/tree-log.c
+++ b/fs/btrfs/tree-log.c
@@ -94,8 +94,10 @@
#define LOG_WALK_REPLAY_ALL 3
static int btrfs_log_inode(struct btrfs_trans_handle *trans,
- struct btrfs_root *root, struct inode *inode,
- int inode_only);
+ struct btrfs_root *root, struct inode *inode,
+ int inode_only,
+ const loff_t start,
+ const loff_t end);
static int link_to_fixup_dir(struct btrfs_trans_handle *trans,
struct btrfs_root *root,
struct btrfs_path *path, u64 objectid);
@@ -3298,7 +3300,7 @@ static noinline int copy_items(struct btrfs_trans_handle *trans,
struct list_head ordered_sums;
int skip_csum = BTRFS_I(inode)->flags & BTRFS_INODE_NODATASUM;
bool has_extents = false;
- bool need_find_last_extent = (*last_extent == 0);
+ bool need_find_last_extent = true;
bool done = false;
INIT_LIST_HEAD(&ordered_sums);
@@ -3352,8 +3354,7 @@ static noinline int copy_items(struct btrfs_trans_handle *trans,
*/
if (ins_keys[i].type == BTRFS_EXTENT_DATA_KEY) {
has_extents = true;
- if (need_find_last_extent &&
- first_key.objectid == (u64)-1)
+ if (first_key.objectid == (u64)-1)
first_key = ins_keys[i];
} else {
need_find_last_extent = false;
@@ -3427,6 +3428,16 @@ static noinline int copy_items(struct btrfs_trans_handle *trans,
if (!has_extents)
return ret;
+ if (need_find_last_extent && *last_extent == first_key.offset) {
+ /*
+ * We don't have any leafs between our current one and the one
+ * we processed before that can have file extent items for our
+ * inode (and have a generation number smaller than our current
+ * transaction id).
+ */
+ need_find_last_extent = false;
+ }
+
/*
* Because we use btrfs_search_forward we could skip leaves that were
* not modified and then assume *last_extent is valid when it really
@@ -3537,7 +3548,7 @@ fill_holes:
0, 0);
if (ret)
break;
- *last_extent = offset + len;
+ *last_extent = extent_end;
}
/*
* Need to let the callers know we dropped the path so they should
@@ -3849,8 +3860,10 @@ process:
* This handles both files and directories.
*/
static int btrfs_log_inode(struct btrfs_trans_handle *trans,
- struct btrfs_root *root, struct inode *inode,
- int inode_only)
+ struct btrfs_root *root, struct inode *inode,
+ int inode_only,
+ const loff_t start,
+ const loff_t end)
{
struct btrfs_path *path;
struct btrfs_path *dst_path;
@@ -3867,6 +3880,7 @@ static int btrfs_log_inode(struct btrfs_trans_handle *trans,
int ins_nr;
bool fast_search = false;
u64 ino = btrfs_ino(inode);
+ struct extent_map_tree *em_tree = &BTRFS_I(inode)->extent_tree;
path = btrfs_alloc_path();
if (!path)
@@ -4040,13 +4054,35 @@ log_extents:
goto out_unlock;
}
} else if (inode_only == LOG_INODE_ALL) {
- struct extent_map_tree *tree = &BTRFS_I(inode)->extent_tree;
struct extent_map *em, *n;
- write_lock(&tree->lock);
- list_for_each_entry_safe(em, n, &tree->modified_extents, list)
- list_del_init(&em->list);
- write_unlock(&tree->lock);
+ write_lock(&em_tree->lock);
+ /*
+ * We can't just remove every em if we're called for a ranged
+ * fsync - that is, one that doesn't cover the whole possible
+ * file range (0 to LLONG_MAX). This is because we can have
+ * em's that fall outside the range we're logging and therefore
+ * their ordered operations haven't completed yet
+ * (btrfs_finish_ordered_io() not invoked yet). This means we
+ * didn't get their respective file extent item in the fs/subvol
+ * tree yet, and need to let the next fast fsync (one which
+ * consults the list of modified extent maps) find the em so
+ * that it logs a matching file extent item and waits for the
+ * respective ordered operation to complete (if it's still
+ * running).
+ *
+ * Removing every em outside the range we're logging would make
+ * the next fast fsync not log their matching file extent items,
+ * therefore making us lose data after a log replay.
+ */
+ list_for_each_entry_safe(em, n, &em_tree->modified_extents,
+ list) {
+ const u64 mod_end = em->mod_start + em->mod_len - 1;
+
+ if (em->mod_start >= start && mod_end <= end)
+ list_del_init(&em->list);
+ }
+ write_unlock(&em_tree->lock);
}
if (inode_only == LOG_INODE_ALL && S_ISDIR(inode->i_mode)) {
@@ -4056,6 +4092,7 @@ log_extents:
goto out_unlock;
}
}
+
BTRFS_I(inode)->logged_trans = trans->transid;
BTRFS_I(inode)->last_log_commit = BTRFS_I(inode)->last_sub_trans;
out_unlock:
@@ -4152,7 +4189,10 @@ out:
*/
static int btrfs_log_inode_parent(struct btrfs_trans_handle *trans,
struct btrfs_root *root, struct inode *inode,
- struct dentry *parent, int exists_only,
+ struct dentry *parent,
+ const loff_t start,
+ const loff_t end,
+ int exists_only,
struct btrfs_log_ctx *ctx)
{
int inode_only = exists_only ? LOG_INODE_EXISTS : LOG_INODE_ALL;
@@ -4198,7 +4238,7 @@ static int btrfs_log_inode_parent(struct btrfs_trans_handle *trans,
if (ret)
goto end_no_trans;
- ret = btrfs_log_inode(trans, root, inode, inode_only);
+ ret = btrfs_log_inode(trans, root, inode, inode_only, start, end);
if (ret)
goto end_trans;
@@ -4226,7 +4266,8 @@ static int btrfs_log_inode_parent(struct btrfs_trans_handle *trans,
if (BTRFS_I(inode)->generation >
root->fs_info->last_trans_committed) {
- ret = btrfs_log_inode(trans, root, inode, inode_only);
+ ret = btrfs_log_inode(trans, root, inode, inode_only,
+ 0, LLONG_MAX);
if (ret)
goto end_trans;
}
@@ -4260,13 +4301,15 @@ end_no_trans:
*/
int btrfs_log_dentry_safe(struct btrfs_trans_handle *trans,
struct btrfs_root *root, struct dentry *dentry,
+ const loff_t start,
+ const loff_t end,
struct btrfs_log_ctx *ctx)
{
struct dentry *parent = dget_parent(dentry);
int ret;
ret = btrfs_log_inode_parent(trans, root, dentry->d_inode, parent,
- 0, ctx);
+ start, end, 0, ctx);
dput(parent);
return ret;
@@ -4503,6 +4546,7 @@ int btrfs_log_new_name(struct btrfs_trans_handle *trans,
root->fs_info->last_trans_committed))
return 0;
- return btrfs_log_inode_parent(trans, root, inode, parent, 1, NULL);
+ return btrfs_log_inode_parent(trans, root, inode, parent, 0,
+ LLONG_MAX, 1, NULL);
}
diff --git a/fs/btrfs/tree-log.h b/fs/btrfs/tree-log.h
index 7f5b41bd5373..e2e798ae7cd7 100644
--- a/fs/btrfs/tree-log.h
+++ b/fs/btrfs/tree-log.h
@@ -59,6 +59,8 @@ int btrfs_free_log_root_tree(struct btrfs_trans_handle *trans,
int btrfs_recover_log_trees(struct btrfs_root *tree_root);
int btrfs_log_dentry_safe(struct btrfs_trans_handle *trans,
struct btrfs_root *root, struct dentry *dentry,
+ const loff_t start,
+ const loff_t end,
struct btrfs_log_ctx *ctx);
int btrfs_del_dir_entries_in_log(struct btrfs_trans_handle *trans,
struct btrfs_root *root,
diff --git a/fs/btrfs/ulist.h b/fs/btrfs/ulist.h
index 7f78cbf5cf41..4c29db604bbe 100644
--- a/fs/btrfs/ulist.h
+++ b/fs/btrfs/ulist.h
@@ -57,6 +57,21 @@ void ulist_free(struct ulist *ulist);
int ulist_add(struct ulist *ulist, u64 val, u64 aux, gfp_t gfp_mask);
int ulist_add_merge(struct ulist *ulist, u64 val, u64 aux,
u64 *old_aux, gfp_t gfp_mask);
+
+/* just like ulist_add_merge() but take a pointer for the aux data */
+static inline int ulist_add_merge_ptr(struct ulist *ulist, u64 val, void *aux,
+ void **old_aux, gfp_t gfp_mask)
+{
+#if BITS_PER_LONG == 32
+ u64 old64 = (uintptr_t)*old_aux;
+ int ret = ulist_add_merge(ulist, val, (uintptr_t)aux, &old64, gfp_mask);
+ *old_aux = (void *)((uintptr_t)old64);
+ return ret;
+#else
+ return ulist_add_merge(ulist, val, (u64)aux, (u64 *)old_aux, gfp_mask);
+#endif
+}
+
struct ulist_node *ulist_next(struct ulist *ulist,
struct ulist_iterator *uiter);
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index 6cb82f62cb7c..2c2d6d1d8eee 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -508,6 +508,43 @@ static noinline int device_list_add(const char *path,
ret = 1;
device->fs_devices = fs_devices;
} else if (!device->name || strcmp(device->name->str, path)) {
+ /*
+ * When FS is already mounted.
+ * 1. If you are here and if the device->name is NULL that
+ * means this device was missing at time of FS mount.
+ * 2. If you are here and if the device->name is different
+ * from 'path' that means either
+ * a. The same device disappeared and reappeared with
+ * different name. or
+ * b. The missing-disk-which-was-replaced, has
+ * reappeared now.
+ *
+ * We must allow 1 and 2a above. But 2b would be a spurious
+ * and unintentional.
+ *
+ * Further in case of 1 and 2a above, the disk at 'path'
+ * would have missed some transaction when it was away and
+ * in case of 2a the stale bdev has to be updated as well.
+ * 2b must not be allowed at all time.
+ */
+
+ /*
+ * For now, we do allow update to btrfs_fs_device through the
+ * btrfs dev scan cli after FS has been mounted. We're still
+ * tracking a problem where systems fail mount by subvolume id
+ * when we reject replacement on a mounted FS.
+ */
+ if (!fs_devices->opened && found_transid < device->generation) {
+ /*
+ * That is if the FS is _not_ mounted and if you
+ * are here, that means there is more than one
+ * disk with same uuid and devid.We keep the one
+ * with larger generation number or the last-in if
+ * generation are equal.
+ */
+ return -EEXIST;
+ }
+
name = rcu_string_strdup(path, GFP_NOFS);
if (!name)
return -ENOMEM;
@@ -519,6 +556,15 @@ static noinline int device_list_add(const char *path,
}
}
+ /*
+ * Unmount does not free the btrfs_device struct but would zero
+ * generation along with most of the other members. So just update
+ * it back. We need it to pick the disk with largest generation
+ * (as above).
+ */
+ if (!fs_devices->opened)
+ device->generation = found_transid;
+
if (found_transid > fs_devices->latest_trans) {
fs_devices->latest_devid = devid;
fs_devices->latest_trans = found_transid;
@@ -1436,7 +1482,7 @@ static int btrfs_add_device(struct btrfs_trans_handle *trans,
btrfs_set_device_io_align(leaf, dev_item, device->io_align);
btrfs_set_device_io_width(leaf, dev_item, device->io_width);
btrfs_set_device_sector_size(leaf, dev_item, device->sector_size);
- btrfs_set_device_total_bytes(leaf, dev_item, device->total_bytes);
+ btrfs_set_device_total_bytes(leaf, dev_item, device->disk_total_bytes);
btrfs_set_device_bytes_used(leaf, dev_item, device->bytes_used);
btrfs_set_device_group(leaf, dev_item, 0);
btrfs_set_device_seek_speed(leaf, dev_item, 0);
@@ -1671,7 +1717,7 @@ int btrfs_rm_device(struct btrfs_root *root, char *device_path)
device->fs_devices->total_devices--;
if (device->missing)
- root->fs_info->fs_devices->missing_devices--;
+ device->fs_devices->missing_devices--;
next_device = list_entry(root->fs_info->fs_devices->devices.next,
struct btrfs_device, dev_list);
@@ -1801,8 +1847,12 @@ void btrfs_rm_dev_replace_srcdev(struct btrfs_fs_info *fs_info,
if (srcdev->bdev) {
fs_info->fs_devices->open_devices--;
- /* zero out the old super */
- btrfs_scratch_superblock(srcdev);
+ /*
+ * zero out the old super if it is not writable
+ * (e.g. seed device)
+ */
+ if (srcdev->writeable)
+ btrfs_scratch_superblock(srcdev);
}
call_rcu(&srcdev->rcu, free_device);
@@ -1941,6 +1991,9 @@ static int btrfs_prepare_sprout(struct btrfs_root *root)
fs_devices->seeding = 0;
fs_devices->num_devices = 0;
fs_devices->open_devices = 0;
+ fs_devices->missing_devices = 0;
+ fs_devices->num_can_discard = 0;
+ fs_devices->rotating = 0;
fs_devices->seed = seed_devices;
generate_random_uuid(fs_devices->fsid);
@@ -5800,7 +5853,8 @@ struct btrfs_device *btrfs_alloc_device(struct btrfs_fs_info *fs_info,
else
generate_random_uuid(dev->uuid);
- btrfs_init_work(&dev->work, pending_bios_fn, NULL, NULL);
+ btrfs_init_work(&dev->work, btrfs_submit_helper,
+ pending_bios_fn, NULL, NULL);
return dev;
}
diff --git a/fs/buffer.c b/fs/buffer.c
index 8f05111bbb8b..3588a80854b2 100644
--- a/fs/buffer.c
+++ b/fs/buffer.c
@@ -1022,7 +1022,8 @@ grow_dev_page(struct block_device *bdev, sector_t block,
bh = page_buffers(page);
if (bh->b_size == size) {
end_block = init_page_buffers(page, bdev,
- index << sizebits, size);
+ (sector_t)index << sizebits,
+ size);
goto done;
}
if (!try_to_free_buffers(page))
@@ -1043,7 +1044,8 @@ grow_dev_page(struct block_device *bdev, sector_t block,
*/
spin_lock(&inode->i_mapping->private_lock);
link_dev_buffers(page, bh);
- end_block = init_page_buffers(page, bdev, index << sizebits, size);
+ end_block = init_page_buffers(page, bdev, (sector_t)index << sizebits,
+ size);
spin_unlock(&inode->i_mapping->private_lock);
done:
ret = (block < end_block) ? 1 : -ENXIO;
diff --git a/fs/cachefiles/namei.c b/fs/cachefiles/namei.c
index 5bf2b41e66d3..83e9c94ca2cf 100644
--- a/fs/cachefiles/namei.c
+++ b/fs/cachefiles/namei.c
@@ -779,7 +779,8 @@ struct dentry *cachefiles_get_directory(struct cachefiles_cache *cache,
!subdir->d_inode->i_op->lookup ||
!subdir->d_inode->i_op->mkdir ||
!subdir->d_inode->i_op->create ||
- !subdir->d_inode->i_op->rename ||
+ (!subdir->d_inode->i_op->rename &&
+ !subdir->d_inode->i_op->rename2) ||
!subdir->d_inode->i_op->rmdir ||
!subdir->d_inode->i_op->unlink)
goto check_error;
diff --git a/fs/cachefiles/rdwr.c b/fs/cachefiles/rdwr.c
index 4b1fb5ca65b8..25e745b8eb1b 100644
--- a/fs/cachefiles/rdwr.c
+++ b/fs/cachefiles/rdwr.c
@@ -151,7 +151,6 @@ static void cachefiles_read_copier(struct fscache_operation *_op)
struct cachefiles_one_read *monitor;
struct cachefiles_object *object;
struct fscache_retrieval *op;
- struct pagevec pagevec;
int error, max;
op = container_of(_op, struct fscache_retrieval, op);
@@ -160,8 +159,6 @@ static void cachefiles_read_copier(struct fscache_operation *_op)
_enter("{ino=%lu}", object->backer->d_inode->i_ino);
- pagevec_init(&pagevec, 0);
-
max = 8;
spin_lock_irq(&object->work_lock);
@@ -396,7 +393,6 @@ int cachefiles_read_or_alloc_page(struct fscache_retrieval *op,
{
struct cachefiles_object *object;
struct cachefiles_cache *cache;
- struct pagevec pagevec;
struct inode *inode;
sector_t block0, block;
unsigned shift;
@@ -427,8 +423,6 @@ int cachefiles_read_or_alloc_page(struct fscache_retrieval *op,
op->op.flags |= FSCACHE_OP_ASYNC;
op->op.processor = cachefiles_read_copier;
- pagevec_init(&pagevec, 0);
-
/* we assume the absence or presence of the first block is a good
* enough indication for the page as a whole
* - TODO: don't use bmap() for this as it is _not_ actually good
diff --git a/fs/cifs/Kconfig b/fs/cifs/Kconfig
index 603f18a65c12..a2172f3f69e3 100644
--- a/fs/cifs/Kconfig
+++ b/fs/cifs/Kconfig
@@ -22,6 +22,11 @@ config CIFS
support for OS/2 and Windows ME and similar servers is provided as
well.
+ The module also provides optional support for the followon
+ protocols for CIFS including SMB3, which enables
+ useful performance and security features (see the description
+ of CONFIG_CIFS_SMB2).
+
The cifs module provides an advanced network file system
client for mounting to CIFS compliant servers. It includes
support for DFS (hierarchical name space), secure per-user
@@ -121,7 +126,8 @@ config CIFS_ACL
depends on CIFS_XATTR && KEYS
help
Allows fetching CIFS/NTFS ACL from the server. The DACL blob
- is handed over to the application/caller.
+ is handed over to the application/caller. See the man
+ page for getcifsacl for more information.
config CIFS_DEBUG
bool "Enable CIFS debugging routines"
@@ -162,7 +168,7 @@ config CIFS_NFSD_EXPORT
Allows NFS server to export a CIFS mounted share (nfsd over cifs)
config CIFS_SMB2
- bool "SMB2 network file system support"
+ bool "SMB2 and SMB3 network file system support"
depends on CIFS && INET
select NLS
select KEYS
@@ -170,16 +176,21 @@ config CIFS_SMB2
select DNS_RESOLVER
help
- This enables experimental support for the SMB2 (Server Message Block
- version 2) protocol. The SMB2 protocol is the successor to the
- popular CIFS and SMB network file sharing protocols. SMB2 is the
- native file sharing mechanism for recent versions of Windows
- operating systems (since Vista). SMB2 enablement will eventually
- allow users better performance, security and features, than would be
- possible with cifs. Note that smb2 mount options also are simpler
- (compared to cifs) due to protocol improvements.
-
- Unless you are a developer or tester, say N.
+ This enables support for the Server Message Block version 2
+ family of protocols, including SMB3. SMB3 support is
+ enabled on mount by specifying "vers=3.0" in the mount
+ options. These protocols are the successors to the popular
+ CIFS and SMB network file sharing protocols. SMB3 is the
+ native file sharing mechanism for the more recent
+ versions of Windows (Windows 8 and Windows 2012 and
+ later) and Samba server and many others support SMB3 well.
+ In general SMB3 enables better performance, security
+ and features, than would be possible with CIFS (Note that
+ when mounting to Samba, due to the CIFS POSIX extensions,
+ CIFS mounts can provide slightly better POSIX compatibility
+ than SMB3 mounts do though). Note that SMB2/SMB3 mount
+ options are also slightly simpler (compared to CIFS) due
+ to protocol improvements.
config CIFS_FSCACHE
bool "Provide CIFS client caching support"
diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c
index ac4f260155c8..889b98455750 100644
--- a/fs/cifs/cifsfs.c
+++ b/fs/cifs/cifsfs.c
@@ -207,6 +207,19 @@ cifs_statfs(struct dentry *dentry, struct kstatfs *buf)
return 0;
}
+static long cifs_fallocate(struct file *file, int mode, loff_t off, loff_t len)
+{
+ struct super_block *sb = file->f_path.dentry->d_sb;
+ struct cifs_sb_info *cifs_sb = CIFS_SB(sb);
+ struct cifs_tcon *tcon = cifs_sb_master_tcon(cifs_sb);
+ struct TCP_Server_Info *server = tcon->ses->server;
+
+ if (server->ops->fallocate)
+ return server->ops->fallocate(file, tcon, mode, off, len);
+
+ return -EOPNOTSUPP;
+}
+
static int cifs_permission(struct inode *inode, int mask)
{
struct cifs_sb_info *cifs_sb;
@@ -812,8 +825,9 @@ static int cifs_setlease(struct file *file, long arg, struct file_lock **lease)
if (!(S_ISREG(inode->i_mode)))
return -EINVAL;
- /* check if file is oplocked */
- if (((arg == F_RDLCK) && CIFS_CACHE_READ(CIFS_I(inode))) ||
+ /* Check if file is oplocked if this is request for new lease */
+ if (arg == F_UNLCK ||
+ ((arg == F_RDLCK) && CIFS_CACHE_READ(CIFS_I(inode))) ||
((arg == F_WRLCK) && CIFS_CACHE_WRITE(CIFS_I(inode))))
return generic_setlease(file, arg, lease);
else if (tlink_tcon(cfile->tlink)->local_lease &&
@@ -908,6 +922,7 @@ const struct file_operations cifs_file_ops = {
.unlocked_ioctl = cifs_ioctl,
#endif /* CONFIG_CIFS_POSIX */
.setlease = cifs_setlease,
+ .fallocate = cifs_fallocate,
};
const struct file_operations cifs_file_strict_ops = {
@@ -927,6 +942,7 @@ const struct file_operations cifs_file_strict_ops = {
.unlocked_ioctl = cifs_ioctl,
#endif /* CONFIG_CIFS_POSIX */
.setlease = cifs_setlease,
+ .fallocate = cifs_fallocate,
};
const struct file_operations cifs_file_direct_ops = {
@@ -947,6 +963,7 @@ const struct file_operations cifs_file_direct_ops = {
#endif /* CONFIG_CIFS_POSIX */
.llseek = cifs_llseek,
.setlease = cifs_setlease,
+ .fallocate = cifs_fallocate,
};
const struct file_operations cifs_file_nobrl_ops = {
@@ -965,6 +982,7 @@ const struct file_operations cifs_file_nobrl_ops = {
.unlocked_ioctl = cifs_ioctl,
#endif /* CONFIG_CIFS_POSIX */
.setlease = cifs_setlease,
+ .fallocate = cifs_fallocate,
};
const struct file_operations cifs_file_strict_nobrl_ops = {
@@ -983,6 +1001,7 @@ const struct file_operations cifs_file_strict_nobrl_ops = {
.unlocked_ioctl = cifs_ioctl,
#endif /* CONFIG_CIFS_POSIX */
.setlease = cifs_setlease,
+ .fallocate = cifs_fallocate,
};
const struct file_operations cifs_file_direct_nobrl_ops = {
@@ -1002,6 +1021,7 @@ const struct file_operations cifs_file_direct_nobrl_ops = {
#endif /* CONFIG_CIFS_POSIX */
.llseek = cifs_llseek,
.setlease = cifs_setlease,
+ .fallocate = cifs_fallocate,
};
const struct file_operations cifs_dir_ops = {
diff --git a/fs/cifs/cifsfs.h b/fs/cifs/cifsfs.h
index b0fafa499505..002e0c173939 100644
--- a/fs/cifs/cifsfs.h
+++ b/fs/cifs/cifsfs.h
@@ -136,5 +136,5 @@ extern long cifs_ioctl(struct file *filep, unsigned int cmd, unsigned long arg);
extern const struct export_operations cifs_export_ops;
#endif /* CONFIG_CIFS_NFSD_EXPORT */
-#define CIFS_VERSION "2.04"
+#define CIFS_VERSION "2.05"
#endif /* _CIFSFS_H */
diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h
index 0012e1e291d4..25b8392bfdd2 100644
--- a/fs/cifs/cifsglob.h
+++ b/fs/cifs/cifsglob.h
@@ -70,11 +70,6 @@
#define SERVER_NAME_LENGTH 40
#define SERVER_NAME_LEN_WITH_NULL (SERVER_NAME_LENGTH + 1)
-/* used to define string lengths for reversing unicode strings */
-/* (256+1)*2 = 514 */
-/* (max path length + 1 for null) * 2 for unicode */
-#define MAX_NAME 514
-
/* SMB echo "timeout" -- FIXME: tunable? */
#define SMB_ECHO_INTERVAL (60 * HZ)
@@ -409,6 +404,10 @@ struct smb_version_operations {
/* get mtu credits */
int (*wait_mtu_credits)(struct TCP_Server_Info *, unsigned int,
unsigned int *, unsigned int *);
+ /* check if we need to issue closedir */
+ bool (*dir_needs_close)(struct cifsFileInfo *);
+ long (*fallocate)(struct file *, struct cifs_tcon *, int, loff_t,
+ loff_t);
};
struct smb_version_values {
@@ -883,6 +882,7 @@ struct cifs_tcon {
for this mount even if server would support */
bool local_lease:1; /* check leases (only) on local system not remote */
bool broken_posix_open; /* e.g. Samba server versions < 3.3.2, 3.2.9 */
+ bool broken_sparse_sup; /* if server or share does not support sparse */
bool need_reconnect:1; /* connection reset, tid now invalid */
#ifdef CONFIG_CIFS_SMB2
bool print:1; /* set if connection to printer share */
diff --git a/fs/cifs/cifspdu.h b/fs/cifs/cifspdu.h
index 33df36ef9d52..5f9822ac0245 100644
--- a/fs/cifs/cifspdu.h
+++ b/fs/cifs/cifspdu.h
@@ -2253,6 +2253,29 @@ typedef struct {
/* minimum includes first three fields, and empty FS Name */
#define MIN_FS_ATTR_INFO_SIZE 12
+
+/* List of FileSystemAttributes - see 2.5.1 of MS-FSCC */
+#define FILE_SUPPORT_INTEGRITY_STREAMS 0x04000000
+#define FILE_SUPPORTS_USN_JOURNAL 0x02000000
+#define FILE_SUPPORTS_OPEN_BY_FILE_ID 0x01000000
+#define FILE_SUPPORTS_EXTENDED_ATTRIBUTES 0x00800000
+#define FILE_SUPPORTS_HARD_LINKS 0x00400000
+#define FILE_SUPPORTS_TRANSACTIONS 0x00200000
+#define FILE_SEQUENTIAL_WRITE_ONCE 0x00100000
+#define FILE_READ_ONLY_VOLUME 0x00080000
+#define FILE_NAMED_STREAMS 0x00040000
+#define FILE_SUPPORTS_ENCRYPTION 0x00020000
+#define FILE_SUPPORTS_OBJECT_IDS 0x00010000
+#define FILE_VOLUME_IS_COMPRESSED 0x00008000
+#define FILE_SUPPORTS_REMOTE_STORAGE 0x00000100
+#define FILE_SUPPORTS_REPARSE_POINTS 0x00000080
+#define FILE_SUPPORTS_SPARSE_FILES 0x00000040
+#define FILE_VOLUME_QUOTAS 0x00000020
+#define FILE_FILE_COMPRESSION 0x00000010
+#define FILE_PERSISTENT_ACLS 0x00000008
+#define FILE_UNICODE_ON_DISK 0x00000004
+#define FILE_CASE_PRESERVED_NAMES 0x00000002
+#define FILE_CASE_SENSITIVE_SEARCH 0x00000001
typedef struct {
__le32 Attributes;
__le32 MaxPathNameComponentLength;
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index 03ed8a09581c..36ca2045009b 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -1600,6 +1600,7 @@ cifs_parse_mount_options(const char *mountdata, const char *devname,
tmp_end++;
if (!(tmp_end < end && tmp_end[1] == delim)) {
/* No it is not. Set the password to NULL */
+ kfree(vol->password);
vol->password = NULL;
break;
}
@@ -1637,6 +1638,7 @@ cifs_parse_mount_options(const char *mountdata, const char *devname,
options = end;
}
+ kfree(vol->password);
/* Now build new password string */
temp_len = strlen(value);
vol->password = kzalloc(temp_len+1, GFP_KERNEL);
diff --git a/fs/cifs/dir.c b/fs/cifs/dir.c
index 3db0c5fd9a11..6cbd9c688cfe 100644
--- a/fs/cifs/dir.c
+++ b/fs/cifs/dir.c
@@ -497,6 +497,14 @@ cifs_atomic_open(struct inode *inode, struct dentry *direntry,
goto out;
}
+ if (file->f_flags & O_DIRECT &&
+ CIFS_SB(inode->i_sb)->mnt_cifs_flags & CIFS_MOUNT_STRICT_IO) {
+ if (CIFS_SB(inode->i_sb)->mnt_cifs_flags & CIFS_MOUNT_NO_BRL)
+ file->f_op = &cifs_file_direct_nobrl_ops;
+ else
+ file->f_op = &cifs_file_direct_ops;
+ }
+
file_info = cifs_new_fileinfo(&fid, file, tlink, oplock);
if (file_info == NULL) {
if (server->ops->close)
diff --git a/fs/cifs/file.c b/fs/cifs/file.c
index 4ab2f79ffa7a..7c018a1c52f7 100644
--- a/fs/cifs/file.c
+++ b/fs/cifs/file.c
@@ -467,6 +467,14 @@ int cifs_open(struct inode *inode, struct file *file)
cifs_dbg(FYI, "inode = 0x%p file flags are 0x%x for %s\n",
inode, file->f_flags, full_path);
+ if (file->f_flags & O_DIRECT &&
+ cifs_sb->mnt_cifs_flags & CIFS_MOUNT_STRICT_IO) {
+ if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_BRL)
+ file->f_op = &cifs_file_direct_nobrl_ops;
+ else
+ file->f_op = &cifs_file_direct_ops;
+ }
+
if (server->oplocks)
oplock = REQ_OPLOCK;
else
@@ -762,7 +770,7 @@ int cifs_closedir(struct inode *inode, struct file *file)
cifs_dbg(FYI, "Freeing private data in close dir\n");
spin_lock(&cifs_file_list_lock);
- if (!cfile->srch_inf.endOfSearch && !cfile->invalidHandle) {
+ if (server->ops->dir_needs_close(cfile)) {
cfile->invalidHandle = true;
spin_unlock(&cifs_file_list_lock);
if (server->ops->close_dir)
diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c
index 426d6c6ad8bf..7899a40465b3 100644
--- a/fs/cifs/inode.c
+++ b/fs/cifs/inode.c
@@ -1720,13 +1720,22 @@ cifs_rename2(struct inode *source_dir, struct dentry *source_dentry,
unlink_target:
/* Try unlinking the target dentry if it's not negative */
if (target_dentry->d_inode && (rc == -EACCES || rc == -EEXIST)) {
- tmprc = cifs_unlink(target_dir, target_dentry);
+ if (d_is_dir(target_dentry))
+ tmprc = cifs_rmdir(target_dir, target_dentry);
+ else
+ tmprc = cifs_unlink(target_dir, target_dentry);
if (tmprc)
goto cifs_rename_exit;
rc = cifs_do_rename(xid, source_dentry, from_name,
target_dentry, to_name);
}
+ /* force revalidate to go get info when needed */
+ CIFS_I(source_dir)->time = CIFS_I(target_dir)->time = 0;
+
+ source_dir->i_ctime = source_dir->i_mtime = target_dir->i_ctime =
+ target_dir->i_mtime = current_fs_time(source_dir->i_sb);
+
cifs_rename_exit:
kfree(info_buf_source);
kfree(from_name);
diff --git a/fs/cifs/link.c b/fs/cifs/link.c
index 68559fd557fb..5657416d3483 100644
--- a/fs/cifs/link.c
+++ b/fs/cifs/link.c
@@ -213,8 +213,12 @@ create_mf_symlink(const unsigned int xid, struct cifs_tcon *tcon,
if (rc)
goto out;
- rc = tcon->ses->server->ops->create_mf_symlink(xid, tcon, cifs_sb,
- fromName, buf, &bytes_written);
+ if (tcon->ses->server->ops->create_mf_symlink)
+ rc = tcon->ses->server->ops->create_mf_symlink(xid, tcon,
+ cifs_sb, fromName, buf, &bytes_written);
+ else
+ rc = -EOPNOTSUPP;
+
if (rc)
goto out;
@@ -339,9 +343,11 @@ cifs_query_mf_symlink(unsigned int xid, struct cifs_tcon *tcon,
if (rc)
return rc;
- if (file_info.EndOfFile != cpu_to_le64(CIFS_MF_SYMLINK_FILE_SIZE))
+ if (file_info.EndOfFile != cpu_to_le64(CIFS_MF_SYMLINK_FILE_SIZE)) {
+ rc = -ENOENT;
/* it's not a symlink */
goto out;
+ }
io_parms.netfid = fid.netfid;
io_parms.pid = current->tgid;
diff --git a/fs/cifs/misc.c b/fs/cifs/misc.c
index 81340c6253eb..b7415d596dbd 100644
--- a/fs/cifs/misc.c
+++ b/fs/cifs/misc.c
@@ -574,13 +574,6 @@ void cifs_set_oplock_level(struct cifsInodeInfo *cinode, __u32 oplock)
cinode->oplock = 0;
}
-static int
-cifs_oplock_break_wait(void *unused)
-{
- schedule();
- return signal_pending(current) ? -ERESTARTSYS : 0;
-}
-
/*
* We wait for oplock breaks to be processed before we attempt to perform
* writes.
diff --git a/fs/cifs/netmisc.c b/fs/cifs/netmisc.c
index 6834b9c3bec1..b333ff60781d 100644
--- a/fs/cifs/netmisc.c
+++ b/fs/cifs/netmisc.c
@@ -925,11 +925,23 @@ cifs_NTtimeToUnix(__le64 ntutc)
/* BB what about the timezone? BB */
/* Subtract the NTFS time offset, then convert to 1s intervals. */
- u64 t;
+ s64 t = le64_to_cpu(ntutc) - NTFS_TIME_OFFSET;
+
+ /*
+ * Unfortunately can not use normal 64 bit division on 32 bit arch, but
+ * the alternative, do_div, does not work with negative numbers so have
+ * to special case them
+ */
+ if (t < 0) {
+ t = -t;
+ ts.tv_nsec = (long)(do_div(t, 10000000) * 100);
+ ts.tv_nsec = -ts.tv_nsec;
+ ts.tv_sec = -t;
+ } else {
+ ts.tv_nsec = (long)do_div(t, 10000000) * 100;
+ ts.tv_sec = t;
+ }
- t = le64_to_cpu(ntutc) - NTFS_TIME_OFFSET;
- ts.tv_nsec = do_div(t, 10000000) * 100;
- ts.tv_sec = t;
return ts;
}
diff --git a/fs/cifs/readdir.c b/fs/cifs/readdir.c
index b15862e0f68c..b334a89d6a66 100644
--- a/fs/cifs/readdir.c
+++ b/fs/cifs/readdir.c
@@ -593,11 +593,11 @@ find_cifs_entry(const unsigned int xid, struct cifs_tcon *tcon, loff_t pos,
/* close and restart search */
cifs_dbg(FYI, "search backing up - close and restart search\n");
spin_lock(&cifs_file_list_lock);
- if (!cfile->srch_inf.endOfSearch && !cfile->invalidHandle) {
+ if (server->ops->dir_needs_close(cfile)) {
cfile->invalidHandle = true;
spin_unlock(&cifs_file_list_lock);
- if (server->ops->close)
- server->ops->close(xid, tcon, &cfile->fid);
+ if (server->ops->close_dir)
+ server->ops->close_dir(xid, tcon, &cfile->fid);
} else
spin_unlock(&cifs_file_list_lock);
if (cfile->srch_inf.ntwrk_buf_start) {
diff --git a/fs/cifs/sess.c b/fs/cifs/sess.c
index 39ee32688eac..57db63ff88da 100644
--- a/fs/cifs/sess.c
+++ b/fs/cifs/sess.c
@@ -243,10 +243,11 @@ static void decode_ascii_ssetup(char **pbcc_area, __u16 bleft,
kfree(ses->serverOS);
ses->serverOS = kzalloc(len + 1, GFP_KERNEL);
- if (ses->serverOS)
+ if (ses->serverOS) {
strncpy(ses->serverOS, bcc_ptr, len);
- if (strncmp(ses->serverOS, "OS/2", 4) == 0)
- cifs_dbg(FYI, "OS/2 server\n");
+ if (strncmp(ses->serverOS, "OS/2", 4) == 0)
+ cifs_dbg(FYI, "OS/2 server\n");
+ }
bcc_ptr += len + 1;
bleft -= len + 1;
@@ -744,14 +745,6 @@ out:
sess_free_buffer(sess_data);
}
-#else
-
-static void
-sess_auth_lanman(struct sess_data *sess_data)
-{
- sess_data->result = -EOPNOTSUPP;
- sess_data->func = NULL;
-}
#endif
static void
@@ -1102,15 +1095,6 @@ out:
ses->auth_key.response = NULL;
}
-#else
-
-static void
-sess_auth_kerberos(struct sess_data *sess_data)
-{
- cifs_dbg(VFS, "Kerberos negotiated but upcall support disabled!\n");
- sess_data->result = -ENOSYS;
- sess_data->func = NULL;
-}
#endif /* ! CONFIG_CIFS_UPCALL */
/*
diff --git a/fs/cifs/smb1ops.c b/fs/cifs/smb1ops.c
index 5e8c22d6c7b9..1a6df4b03f67 100644
--- a/fs/cifs/smb1ops.c
+++ b/fs/cifs/smb1ops.c
@@ -1015,6 +1015,12 @@ cifs_wp_retry_size(struct inode *inode)
return CIFS_SB(inode->i_sb)->wsize;
}
+static bool
+cifs_dir_needs_close(struct cifsFileInfo *cfile)
+{
+ return !cfile->srch_inf.endOfSearch && !cfile->invalidHandle;
+}
+
struct smb_version_operations smb1_operations = {
.send_cancel = send_nt_cancel,
.compare_fids = cifs_compare_fids,
@@ -1086,6 +1092,7 @@ struct smb_version_operations smb1_operations = {
.create_mf_symlink = cifs_create_mf_symlink,
.is_read_op = cifs_is_read_op,
.wp_retry_size = cifs_wp_retry_size,
+ .dir_needs_close = cifs_dir_needs_close,
#ifdef CONFIG_CIFS_XATTR
.query_all_EAs = CIFSSMBQAllEAs,
.set_EA = CIFSSMBSetEA,
diff --git a/fs/cifs/smb2file.c b/fs/cifs/smb2file.c
index 3f17b4550831..45992944e238 100644
--- a/fs/cifs/smb2file.c
+++ b/fs/cifs/smb2file.c
@@ -50,7 +50,7 @@ smb2_open_file(const unsigned int xid, struct cifs_open_parms *oparms,
goto out;
}
- smb2_data = kzalloc(sizeof(struct smb2_file_all_info) + MAX_NAME * 2,
+ smb2_data = kzalloc(sizeof(struct smb2_file_all_info) + PATH_MAX * 2,
GFP_KERNEL);
if (smb2_data == NULL) {
rc = -ENOMEM;
diff --git a/fs/cifs/smb2inode.c b/fs/cifs/smb2inode.c
index 0150182a4494..899bbc86f73e 100644
--- a/fs/cifs/smb2inode.c
+++ b/fs/cifs/smb2inode.c
@@ -131,7 +131,7 @@ smb2_query_path_info(const unsigned int xid, struct cifs_tcon *tcon,
*adjust_tz = false;
*symlink = false;
- smb2_data = kzalloc(sizeof(struct smb2_file_all_info) + MAX_NAME * 2,
+ smb2_data = kzalloc(sizeof(struct smb2_file_all_info) + PATH_MAX * 2,
GFP_KERNEL);
if (smb2_data == NULL)
return -ENOMEM;
diff --git a/fs/cifs/smb2maperror.c b/fs/cifs/smb2maperror.c
index e31a9dfdcd39..af59d03db492 100644
--- a/fs/cifs/smb2maperror.c
+++ b/fs/cifs/smb2maperror.c
@@ -214,7 +214,7 @@ static const struct status_to_posix_error smb2_error_map_table[] = {
{STATUS_BREAKPOINT, -EIO, "STATUS_BREAKPOINT"},
{STATUS_SINGLE_STEP, -EIO, "STATUS_SINGLE_STEP"},
{STATUS_BUFFER_OVERFLOW, -EIO, "STATUS_BUFFER_OVERFLOW"},
- {STATUS_NO_MORE_FILES, -EIO, "STATUS_NO_MORE_FILES"},
+ {STATUS_NO_MORE_FILES, -ENODATA, "STATUS_NO_MORE_FILES"},
{STATUS_WAKE_SYSTEM_DEBUGGER, -EIO, "STATUS_WAKE_SYSTEM_DEBUGGER"},
{STATUS_HANDLES_CLOSED, -EIO, "STATUS_HANDLES_CLOSED"},
{STATUS_NO_INHERITANCE, -EIO, "STATUS_NO_INHERITANCE"},
@@ -298,7 +298,7 @@ static const struct status_to_posix_error smb2_error_map_table[] = {
{STATUS_INVALID_PARAMETER, -EINVAL, "STATUS_INVALID_PARAMETER"},
{STATUS_NO_SUCH_DEVICE, -ENODEV, "STATUS_NO_SUCH_DEVICE"},
{STATUS_NO_SUCH_FILE, -ENOENT, "STATUS_NO_SUCH_FILE"},
- {STATUS_INVALID_DEVICE_REQUEST, -EIO, "STATUS_INVALID_DEVICE_REQUEST"},
+ {STATUS_INVALID_DEVICE_REQUEST, -EOPNOTSUPP, "STATUS_INVALID_DEVICE_REQUEST"},
{STATUS_END_OF_FILE, -ENODATA, "STATUS_END_OF_FILE"},
{STATUS_WRONG_VOLUME, -EIO, "STATUS_WRONG_VOLUME"},
{STATUS_NO_MEDIA_IN_DEVICE, -EIO, "STATUS_NO_MEDIA_IN_DEVICE"},
diff --git a/fs/cifs/smb2misc.c b/fs/cifs/smb2misc.c
index f2e6ac29a8d6..4aa7a0f07d6e 100644
--- a/fs/cifs/smb2misc.c
+++ b/fs/cifs/smb2misc.c
@@ -178,9 +178,24 @@ smb2_check_message(char *buf, unsigned int length)
/* Windows 7 server returns 24 bytes more */
if (clc_len + 20 == len && command == SMB2_OPLOCK_BREAK_HE)
return 0;
- /* server can return one byte more */
+ /* server can return one byte more due to implied bcc[0] */
if (clc_len == 4 + len + 1)
return 0;
+
+ /*
+ * MacOS server pads after SMB2.1 write response with 3 bytes
+ * of junk. Other servers match RFC1001 len to actual
+ * SMB2/SMB3 frame length (header + smb2 response specific data)
+ * Log the server error (once), but allow it and continue
+ * since the frame is parseable.
+ */
+ if (clc_len < 4 /* RFC1001 header size */ + len) {
+ printk_once(KERN_WARNING
+ "SMB2 server sent bad RFC1001 len %d not %d\n",
+ len, clc_len - 4);
+ return 0;
+ }
+
return 1;
}
return 0;
diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c
index 77f8aeb9c2fc..f522193b7184 100644
--- a/fs/cifs/smb2ops.c
+++ b/fs/cifs/smb2ops.c
@@ -389,7 +389,7 @@ smb2_query_file_info(const unsigned int xid, struct cifs_tcon *tcon,
int rc;
struct smb2_file_all_info *smb2_data;
- smb2_data = kzalloc(sizeof(struct smb2_file_all_info) + MAX_NAME * 2,
+ smb2_data = kzalloc(sizeof(struct smb2_file_all_info) + PATH_MAX * 2,
GFP_KERNEL);
if (smb2_data == NULL)
return -ENOMEM;
@@ -731,11 +731,72 @@ smb2_sync_write(const unsigned int xid, struct cifsFileInfo *cfile,
return SMB2_write(xid, parms, written, iov, nr_segs);
}
+/* Set or clear the SPARSE_FILE attribute based on value passed in setsparse */
+static bool smb2_set_sparse(const unsigned int xid, struct cifs_tcon *tcon,
+ struct cifsFileInfo *cfile, struct inode *inode, __u8 setsparse)
+{
+ struct cifsInodeInfo *cifsi;
+ int rc;
+
+ cifsi = CIFS_I(inode);
+
+ /* if file already sparse don't bother setting sparse again */
+ if ((cifsi->cifsAttrs & FILE_ATTRIBUTE_SPARSE_FILE) && setsparse)
+ return true; /* already sparse */
+
+ if (!(cifsi->cifsAttrs & FILE_ATTRIBUTE_SPARSE_FILE) && !setsparse)
+ return true; /* already not sparse */
+
+ /*
+ * Can't check for sparse support on share the usual way via the
+ * FS attribute info (FILE_SUPPORTS_SPARSE_FILES) on the share
+ * since Samba server doesn't set the flag on the share, yet
+ * supports the set sparse FSCTL and returns sparse correctly
+ * in the file attributes. If we fail setting sparse though we
+ * mark that server does not support sparse files for this share
+ * to avoid repeatedly sending the unsupported fsctl to server
+ * if the file is repeatedly extended.
+ */
+ if (tcon->broken_sparse_sup)
+ return false;
+
+ rc = SMB2_ioctl(xid, tcon, cfile->fid.persistent_fid,
+ cfile->fid.volatile_fid, FSCTL_SET_SPARSE,
+ true /* is_fctl */, &setsparse, 1, NULL, NULL);
+ if (rc) {
+ tcon->broken_sparse_sup = true;
+ cifs_dbg(FYI, "set sparse rc = %d\n", rc);
+ return false;
+ }
+
+ if (setsparse)
+ cifsi->cifsAttrs |= FILE_ATTRIBUTE_SPARSE_FILE;
+ else
+ cifsi->cifsAttrs &= (~FILE_ATTRIBUTE_SPARSE_FILE);
+
+ return true;
+}
+
static int
smb2_set_file_size(const unsigned int xid, struct cifs_tcon *tcon,
struct cifsFileInfo *cfile, __u64 size, bool set_alloc)
{
__le64 eof = cpu_to_le64(size);
+ struct inode *inode;
+
+ /*
+ * If extending file more than one page make sparse. Many Linux fs
+ * make files sparse by default when extending via ftruncate
+ */
+ inode = cfile->dentry->d_inode;
+
+ if (!set_alloc && (size > inode->i_size + 8192)) {
+ __u8 set_sparse = 1;
+
+ /* whether set sparse succeeds or not, extend the file */
+ smb2_set_sparse(xid, tcon, cfile, inode, set_sparse);
+ }
+
return SMB2_set_eof(xid, tcon, cfile->fid.persistent_fid,
cfile->fid.volatile_fid, cfile->pid, &eof, false);
}
@@ -954,6 +1015,105 @@ smb2_query_symlink(const unsigned int xid, struct cifs_tcon *tcon,
return rc;
}
+static long smb3_zero_range(struct file *file, struct cifs_tcon *tcon,
+ loff_t offset, loff_t len, bool keep_size)
+{
+ struct inode *inode;
+ struct cifsInodeInfo *cifsi;
+ struct cifsFileInfo *cfile = file->private_data;
+ struct file_zero_data_information fsctl_buf;
+ long rc;
+ unsigned int xid;
+
+ xid = get_xid();
+
+ inode = cfile->dentry->d_inode;
+ cifsi = CIFS_I(inode);
+
+ /* if file not oplocked can't be sure whether asking to extend size */
+ if (!CIFS_CACHE_READ(cifsi))
+ if (keep_size == false)
+ return -EOPNOTSUPP;
+
+ /*
+ * Must check if file sparse since fallocate -z (zero range) assumes
+ * non-sparse allocation
+ */
+ if (!(cifsi->cifsAttrs & FILE_ATTRIBUTE_SPARSE_FILE))
+ return -EOPNOTSUPP;
+
+ /*
+ * need to make sure we are not asked to extend the file since the SMB3
+ * fsctl does not change the file size. In the future we could change
+ * this to zero the first part of the range then set the file size
+ * which for a non sparse file would zero the newly extended range
+ */
+ if (keep_size == false)
+ if (i_size_read(inode) < offset + len)
+ return -EOPNOTSUPP;
+
+ cifs_dbg(FYI, "offset %lld len %lld", offset, len);
+
+ fsctl_buf.FileOffset = cpu_to_le64(offset);
+ fsctl_buf.BeyondFinalZero = cpu_to_le64(offset + len);
+
+ rc = SMB2_ioctl(xid, tcon, cfile->fid.persistent_fid,
+ cfile->fid.volatile_fid, FSCTL_SET_ZERO_DATA,
+ true /* is_fctl */, (char *)&fsctl_buf,
+ sizeof(struct file_zero_data_information), NULL, NULL);
+ free_xid(xid);
+ return rc;
+}
+
+static long smb3_punch_hole(struct file *file, struct cifs_tcon *tcon,
+ loff_t offset, loff_t len)
+{
+ struct inode *inode;
+ struct cifsInodeInfo *cifsi;
+ struct cifsFileInfo *cfile = file->private_data;
+ struct file_zero_data_information fsctl_buf;
+ long rc;
+ unsigned int xid;
+ __u8 set_sparse = 1;
+
+ xid = get_xid();
+
+ inode = cfile->dentry->d_inode;
+ cifsi = CIFS_I(inode);
+
+ /* Need to make file sparse, if not already, before freeing range. */
+ /* Consider adding equivalent for compressed since it could also work */
+ if (!smb2_set_sparse(xid, tcon, cfile, inode, set_sparse))
+ return -EOPNOTSUPP;
+
+ cifs_dbg(FYI, "offset %lld len %lld", offset, len);
+
+ fsctl_buf.FileOffset = cpu_to_le64(offset);
+ fsctl_buf.BeyondFinalZero = cpu_to_le64(offset + len);
+
+ rc = SMB2_ioctl(xid, tcon, cfile->fid.persistent_fid,
+ cfile->fid.volatile_fid, FSCTL_SET_ZERO_DATA,
+ true /* is_fctl */, (char *)&fsctl_buf,
+ sizeof(struct file_zero_data_information), NULL, NULL);
+ free_xid(xid);
+ return rc;
+}
+
+static long smb3_fallocate(struct file *file, struct cifs_tcon *tcon, int mode,
+ loff_t off, loff_t len)
+{
+ /* KEEP_SIZE already checked for by do_fallocate */
+ if (mode & FALLOC_FL_PUNCH_HOLE)
+ return smb3_punch_hole(file, tcon, off, len);
+ else if (mode & FALLOC_FL_ZERO_RANGE) {
+ if (mode & FALLOC_FL_KEEP_SIZE)
+ return smb3_zero_range(file, tcon, off, len, true);
+ return smb3_zero_range(file, tcon, off, len, false);
+ }
+
+ return -EOPNOTSUPP;
+}
+
static void
smb2_downgrade_oplock(struct TCP_Server_Info *server,
struct cifsInodeInfo *cinode, bool set_level2)
@@ -1161,6 +1321,12 @@ smb2_wp_retry_size(struct inode *inode)
SMB2_MAX_BUFFER_SIZE);
}
+static bool
+smb2_dir_needs_close(struct cifsFileInfo *cfile)
+{
+ return !cfile->invalidHandle;
+}
+
struct smb_version_operations smb20_operations = {
.compare_fids = smb2_compare_fids,
.setup_request = smb2_setup_request,
@@ -1236,6 +1402,7 @@ struct smb_version_operations smb20_operations = {
.parse_lease_buf = smb2_parse_lease_buf,
.clone_range = smb2_clone_range,
.wp_retry_size = smb2_wp_retry_size,
+ .dir_needs_close = smb2_dir_needs_close,
};
struct smb_version_operations smb21_operations = {
@@ -1313,6 +1480,7 @@ struct smb_version_operations smb21_operations = {
.parse_lease_buf = smb2_parse_lease_buf,
.clone_range = smb2_clone_range,
.wp_retry_size = smb2_wp_retry_size,
+ .dir_needs_close = smb2_dir_needs_close,
};
struct smb_version_operations smb30_operations = {
@@ -1393,6 +1561,8 @@ struct smb_version_operations smb30_operations = {
.clone_range = smb2_clone_range,
.validate_negotiate = smb3_validate_negotiate,
.wp_retry_size = smb2_wp_retry_size,
+ .dir_needs_close = smb2_dir_needs_close,
+ .fallocate = smb3_fallocate,
};
struct smb_version_values smb20_values = {
diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c
index 42ebc1a8be6c..74b3a6684383 100644
--- a/fs/cifs/smb2pdu.c
+++ b/fs/cifs/smb2pdu.c
@@ -530,7 +530,7 @@ SMB2_sess_setup(const unsigned int xid, struct cifs_ses *ses,
struct smb2_sess_setup_rsp *rsp = NULL;
struct kvec iov[2];
int rc = 0;
- int resp_buftype;
+ int resp_buftype = CIFS_NO_BUFFER;
__le32 phase = NtLmNegotiate; /* NTLMSSP, if needed, is multistage */
struct TCP_Server_Info *server = ses->server;
u16 blob_length = 0;
@@ -907,7 +907,8 @@ tcon_exit:
tcon_error_exit:
if (rsp->hdr.Status == STATUS_BAD_NETWORK_NAME) {
cifs_dbg(VFS, "BAD_NETWORK_NAME: %s\n", tree);
- tcon->bad_network_name = true;
+ if (tcon)
+ tcon->bad_network_name = true;
}
goto tcon_exit;
}
@@ -1224,7 +1225,9 @@ SMB2_ioctl(const unsigned int xid, struct cifs_tcon *tcon, u64 persistent_fid,
cifs_dbg(FYI, "SMB2 IOCTL\n");
- *out_data = NULL;
+ if (out_data != NULL)
+ *out_data = NULL;
+
/* zero out returned data len, in case of error */
if (plen)
*plen = 0;
@@ -1400,8 +1403,7 @@ SMB2_close(const unsigned int xid, struct cifs_tcon *tcon,
rsp = (struct smb2_close_rsp *)iov[0].iov_base;
if (rc != 0) {
- if (tcon)
- cifs_stats_fail_inc(tcon, SMB2_CLOSE_HE);
+ cifs_stats_fail_inc(tcon, SMB2_CLOSE_HE);
goto close_exit;
}
@@ -1530,7 +1532,7 @@ SMB2_query_info(const unsigned int xid, struct cifs_tcon *tcon,
{
return query_info(xid, tcon, persistent_fid, volatile_fid,
FILE_ALL_INFORMATION,
- sizeof(struct smb2_file_all_info) + MAX_NAME * 2,
+ sizeof(struct smb2_file_all_info) + PATH_MAX * 2,
sizeof(struct smb2_file_all_info), data);
}
@@ -2177,6 +2179,10 @@ SMB2_query_directory(const unsigned int xid, struct cifs_tcon *tcon,
rsp = (struct smb2_query_directory_rsp *)iov[0].iov_base;
if (rc) {
+ if (rc == -ENODATA && rsp->hdr.Status == STATUS_NO_MORE_FILES) {
+ srch_inf->endOfSearch = true;
+ rc = 0;
+ }
cifs_stats_fail_inc(tcon, SMB2_QUERY_DIRECTORY_HE);
goto qdir_exit;
}
@@ -2214,11 +2220,6 @@ SMB2_query_directory(const unsigned int xid, struct cifs_tcon *tcon,
else
cifs_dbg(VFS, "illegal search buffer type\n");
- if (rsp->hdr.Status == STATUS_NO_MORE_FILES)
- srch_inf->endOfSearch = 1;
- else
- srch_inf->endOfSearch = 0;
-
return rc;
qdir_exit:
diff --git a/fs/cifs/smb2pdu.h b/fs/cifs/smb2pdu.h
index 69f3595d3952..fbe486c285a9 100644
--- a/fs/cifs/smb2pdu.h
+++ b/fs/cifs/smb2pdu.h
@@ -573,6 +573,12 @@ struct copychunk_ioctl {
__u32 Reserved2;
} __packed;
+/* this goes in the ioctl buffer when doing FSCTL_SET_ZERO_DATA */
+struct file_zero_data_information {
+ __le64 FileOffset;
+ __le64 BeyondFinalZero;
+} __packed;
+
struct copychunk_ioctl_rsp {
__le32 ChunksWritten;
__le32 ChunkBytesWritten;
diff --git a/fs/cifs/smbfsctl.h b/fs/cifs/smbfsctl.h
index 0e538b5c9622..83efa59535be 100644
--- a/fs/cifs/smbfsctl.h
+++ b/fs/cifs/smbfsctl.h
@@ -63,7 +63,7 @@
#define FSCTL_SET_OBJECT_ID_EXTENDED 0x000900BC /* BB add struct */
#define FSCTL_CREATE_OR_GET_OBJECT_ID 0x000900C0 /* BB add struct */
#define FSCTL_SET_SPARSE 0x000900C4 /* BB add struct */
-#define FSCTL_SET_ZERO_DATA 0x000900C8 /* BB add struct */
+#define FSCTL_SET_ZERO_DATA 0x000980C8
#define FSCTL_SET_ENCRYPTION 0x000900D7 /* BB add struct */
#define FSCTL_ENCRYPTION_FSCTL_IO 0x000900DB /* BB add struct */
#define FSCTL_WRITE_RAW_ENCRYPTED 0x000900DF /* BB add struct */
diff --git a/fs/dcache.c b/fs/dcache.c
index d30ce699ae4b..7a5b51440afa 100644
--- a/fs/dcache.c
+++ b/fs/dcache.c
@@ -106,8 +106,7 @@ static inline struct hlist_bl_head *d_hash(const struct dentry *parent,
unsigned int hash)
{
hash += (unsigned long) parent / L1_CACHE_BYTES;
- hash = hash + (hash >> d_hash_shift);
- return dentry_hashtable + (hash & d_hash_mask);
+ return dentry_hashtable + hash_32(hash, d_hash_shift);
}
/* Statistics gathering. */
@@ -2656,6 +2655,12 @@ static void __d_materialise_dentry(struct dentry *dentry, struct dentry *anon)
dentry->d_parent = dentry;
list_del_init(&dentry->d_u.d_child);
anon->d_parent = dparent;
+ if (likely(!d_unhashed(anon))) {
+ hlist_bl_lock(&anon->d_sb->s_anon);
+ __hlist_bl_del(&anon->d_hash);
+ anon->d_hash.pprev = NULL;
+ hlist_bl_unlock(&anon->d_sb->s_anon);
+ }
list_move(&anon->d_u.d_child, &dparent->d_subdirs);
write_seqcount_end(&dentry->d_seq);
@@ -2714,7 +2719,6 @@ struct dentry *d_splice_alias(struct inode *inode, struct dentry *dentry)
write_seqlock(&rename_lock);
__d_materialise_dentry(dentry, new);
write_sequnlock(&rename_lock);
- __d_drop(new);
_d_rehash(new);
spin_unlock(&new->d_lock);
spin_unlock(&inode->i_lock);
@@ -2778,7 +2782,6 @@ struct dentry *d_materialise_unique(struct dentry *dentry, struct inode *inode)
* could splice into our tree? */
__d_materialise_dentry(dentry, alias);
write_sequnlock(&rename_lock);
- __d_drop(alias);
goto found;
} else {
/* Nope, but we must(!) avoid directory
diff --git a/fs/eventpoll.c b/fs/eventpoll.c
index b10b48c2a7af..7bcfff900f05 100644
--- a/fs/eventpoll.c
+++ b/fs/eventpoll.c
@@ -1852,7 +1852,8 @@ SYSCALL_DEFINE4(epoll_ctl, int, epfd, int, op, int, fd,
goto error_tgt_fput;
/* Check if EPOLLWAKEUP is allowed */
- ep_take_care_of_epollwakeup(&epds);
+ if (ep_op_has_event(op))
+ ep_take_care_of_epollwakeup(&epds);
/*
* We have to check that the file structure underneath the file descriptor
diff --git a/fs/ext3/super.c b/fs/ext3/super.c
index eba021b88440..bb0fdacad058 100644
--- a/fs/ext3/super.c
+++ b/fs/ext3/super.c
@@ -2828,8 +2828,9 @@ static int ext3_statfs (struct dentry * dentry, struct kstatfs * buf)
*/
overhead += ngroups * (2 + sbi->s_itb_per_group);
- /* Add the journal blocks as well */
- overhead += sbi->s_journal->j_maxlen;
+ /* Add the internal journal blocks as well */
+ if (sbi->s_journal && !sbi->journal_bdev)
+ overhead += sbi->s_journal->j_maxlen;
sbi->s_overhead_last = overhead;
smp_wmb();
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index 5b19760b1de5..b0c225cdb52c 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -1825,7 +1825,7 @@ ext4_group_first_block_no(struct super_block *sb, ext4_group_t group_no)
/*
* Special error return code only used by dx_probe() and its callers.
*/
-#define ERR_BAD_DX_DIR -75000
+#define ERR_BAD_DX_DIR (-(MAX_ERRNO - 1))
/*
* Timeout and state flag for lazy initialization inode thread.
@@ -2454,6 +2454,22 @@ static inline void ext4_update_i_disksize(struct inode *inode, loff_t newsize)
up_write(&EXT4_I(inode)->i_data_sem);
}
+/* Update i_size, i_disksize. Requires i_mutex to avoid races with truncate */
+static inline int ext4_update_inode_size(struct inode *inode, loff_t newsize)
+{
+ int changed = 0;
+
+ if (newsize > inode->i_size) {
+ i_size_write(inode, newsize);
+ changed = 1;
+ }
+ if (newsize > EXT4_I(inode)->i_disksize) {
+ ext4_update_i_disksize(inode, newsize);
+ changed |= 2;
+ }
+ return changed;
+}
+
struct ext4_group_info {
unsigned long bb_state;
struct rb_root bb_free_root;
diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
index 76c2df382b7d..74292a71b384 100644
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c
@@ -4665,7 +4665,8 @@ retry:
}
static int ext4_alloc_file_blocks(struct file *file, ext4_lblk_t offset,
- ext4_lblk_t len, int flags, int mode)
+ ext4_lblk_t len, loff_t new_size,
+ int flags, int mode)
{
struct inode *inode = file_inode(file);
handle_t *handle;
@@ -4674,8 +4675,10 @@ static int ext4_alloc_file_blocks(struct file *file, ext4_lblk_t offset,
int retries = 0;
struct ext4_map_blocks map;
unsigned int credits;
+ loff_t epos;
map.m_lblk = offset;
+ map.m_len = len;
/*
* Don't normalize the request if it can fit in one extent so
* that it doesn't get unnecessarily split into multiple
@@ -4690,9 +4693,7 @@ static int ext4_alloc_file_blocks(struct file *file, ext4_lblk_t offset,
credits = ext4_chunk_trans_blocks(inode, len);
retry:
- while (ret >= 0 && ret < len) {
- map.m_lblk = map.m_lblk + ret;
- map.m_len = len = len - ret;
+ while (ret >= 0 && len) {
handle = ext4_journal_start(inode, EXT4_HT_MAP_BLOCKS,
credits);
if (IS_ERR(handle)) {
@@ -4709,6 +4710,21 @@ retry:
ret2 = ext4_journal_stop(handle);
break;
}
+ map.m_lblk += ret;
+ map.m_len = len = len - ret;
+ epos = (loff_t)map.m_lblk << inode->i_blkbits;
+ inode->i_ctime = ext4_current_time(inode);
+ if (new_size) {
+ if (epos > new_size)
+ epos = new_size;
+ if (ext4_update_inode_size(inode, epos) & 0x1)
+ inode->i_mtime = inode->i_ctime;
+ } else {
+ if (epos > inode->i_size)
+ ext4_set_inode_flag(inode,
+ EXT4_INODE_EOFBLOCKS);
+ }
+ ext4_mark_inode_dirty(handle, inode);
ret2 = ext4_journal_stop(handle);
if (ret2)
break;
@@ -4731,7 +4747,8 @@ static long ext4_zero_range(struct file *file, loff_t offset,
loff_t new_size = 0;
int ret = 0;
int flags;
- int partial;
+ int credits;
+ int partial_begin, partial_end;
loff_t start, end;
ext4_lblk_t lblk;
struct address_space *mapping = inode->i_mapping;
@@ -4771,7 +4788,8 @@ static long ext4_zero_range(struct file *file, loff_t offset,
if (start < offset || end > offset + len)
return -EINVAL;
- partial = (offset + len) & ((1 << blkbits) - 1);
+ partial_begin = offset & ((1 << blkbits) - 1);
+ partial_end = (offset + len) & ((1 << blkbits) - 1);
lblk = start >> blkbits;
max_blocks = (end >> blkbits);
@@ -4805,7 +4823,7 @@ static long ext4_zero_range(struct file *file, loff_t offset,
* If we have a partial block after EOF we have to allocate
* the entire block.
*/
- if (partial)
+ if (partial_end)
max_blocks += 1;
}
@@ -4813,6 +4831,7 @@ static long ext4_zero_range(struct file *file, loff_t offset,
/* Now release the pages and zero block aligned part of pages*/
truncate_pagecache_range(inode, start, end - 1);
+ inode->i_mtime = inode->i_ctime = ext4_current_time(inode);
/* Wait all existing dio workers, newcomers will block on i_mutex */
ext4_inode_block_unlocked_dio(inode);
@@ -4825,13 +4844,22 @@ static long ext4_zero_range(struct file *file, loff_t offset,
if (ret)
goto out_dio;
- ret = ext4_alloc_file_blocks(file, lblk, max_blocks, flags,
- mode);
+ ret = ext4_alloc_file_blocks(file, lblk, max_blocks, new_size,
+ flags, mode);
if (ret)
goto out_dio;
}
+ if (!partial_begin && !partial_end)
+ goto out_dio;
- handle = ext4_journal_start(inode, EXT4_HT_MISC, 4);
+ /*
+ * In worst case we have to writeout two nonadjacent unwritten
+ * blocks and update the inode
+ */
+ credits = (2 * ext4_ext_index_trans_blocks(inode, 2)) + 1;
+ if (ext4_should_journal_data(inode))
+ credits += 2;
+ handle = ext4_journal_start(inode, EXT4_HT_MISC, credits);
if (IS_ERR(handle)) {
ret = PTR_ERR(handle);
ext4_std_error(inode->i_sb, ret);
@@ -4839,12 +4867,8 @@ static long ext4_zero_range(struct file *file, loff_t offset,
}
inode->i_mtime = inode->i_ctime = ext4_current_time(inode);
-
if (new_size) {
- if (new_size > i_size_read(inode))
- i_size_write(inode, new_size);
- if (new_size > EXT4_I(inode)->i_disksize)
- ext4_update_i_disksize(inode, new_size);
+ ext4_update_inode_size(inode, new_size);
} else {
/*
* Mark that we allocate beyond EOF so the subsequent truncate
@@ -4853,7 +4877,6 @@ static long ext4_zero_range(struct file *file, loff_t offset,
if ((offset + len) > i_size_read(inode))
ext4_set_inode_flag(inode, EXT4_INODE_EOFBLOCKS);
}
-
ext4_mark_inode_dirty(handle, inode);
/* Zero out partial block at the edges of the range */
@@ -4880,13 +4903,11 @@ out_mutex:
long ext4_fallocate(struct file *file, int mode, loff_t offset, loff_t len)
{
struct inode *inode = file_inode(file);
- handle_t *handle;
loff_t new_size = 0;
unsigned int max_blocks;
int ret = 0;
int flags;
ext4_lblk_t lblk;
- struct timespec tv;
unsigned int blkbits = inode->i_blkbits;
/* Return error if mode is not supported */
@@ -4937,36 +4958,15 @@ long ext4_fallocate(struct file *file, int mode, loff_t offset, loff_t len)
goto out;
}
- ret = ext4_alloc_file_blocks(file, lblk, max_blocks, flags, mode);
+ ret = ext4_alloc_file_blocks(file, lblk, max_blocks, new_size,
+ flags, mode);
if (ret)
goto out;
- handle = ext4_journal_start(inode, EXT4_HT_INODE, 2);
- if (IS_ERR(handle))
- goto out;
-
- tv = inode->i_ctime = ext4_current_time(inode);
-
- if (new_size) {
- if (new_size > i_size_read(inode)) {
- i_size_write(inode, new_size);
- inode->i_mtime = tv;
- }
- if (new_size > EXT4_I(inode)->i_disksize)
- ext4_update_i_disksize(inode, new_size);
- } else {
- /*
- * Mark that we allocate beyond EOF so the subsequent truncate
- * can proceed even if the new size is the same as i_size.
- */
- if ((offset + len) > i_size_read(inode))
- ext4_set_inode_flag(inode, EXT4_INODE_EOFBLOCKS);
+ if (file->f_flags & O_SYNC && EXT4_SB(inode->i_sb)->s_journal) {
+ ret = jbd2_complete_transaction(EXT4_SB(inode->i_sb)->s_journal,
+ EXT4_I(inode)->i_sync_tid);
}
- ext4_mark_inode_dirty(handle, inode);
- if (file->f_flags & O_SYNC)
- ext4_handle_sync(handle);
-
- ext4_journal_stop(handle);
out:
mutex_unlock(&inode->i_mutex);
trace_ext4_fallocate_exit(inode, offset, max_blocks, ret);
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 367a60c07cf0..3aa26e9117c4 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -1055,27 +1055,11 @@ static int ext4_write_end(struct file *file,
} else
copied = block_write_end(file, mapping, pos,
len, copied, page, fsdata);
-
/*
- * No need to use i_size_read() here, the i_size
- * cannot change under us because we hole i_mutex.
- *
- * But it's important to update i_size while still holding page lock:
+ * it's important to update i_size while still holding page lock:
* page writeout could otherwise come in and zero beyond i_size.
*/
- if (pos + copied > inode->i_size) {
- i_size_write(inode, pos + copied);
- i_size_changed = 1;
- }
-
- if (pos + copied > EXT4_I(inode)->i_disksize) {
- /* We need to mark inode dirty even if
- * new_i_size is less that inode->i_size
- * but greater than i_disksize. (hint delalloc)
- */
- ext4_update_i_disksize(inode, (pos + copied));
- i_size_changed = 1;
- }
+ i_size_changed = ext4_update_inode_size(inode, pos + copied);
unlock_page(page);
page_cache_release(page);
@@ -1123,7 +1107,7 @@ static int ext4_journalled_write_end(struct file *file,
int ret = 0, ret2;
int partial = 0;
unsigned from, to;
- loff_t new_i_size;
+ int size_changed = 0;
trace_ext4_journalled_write_end(inode, pos, len, copied);
from = pos & (PAGE_CACHE_SIZE - 1);
@@ -1146,20 +1130,18 @@ static int ext4_journalled_write_end(struct file *file,
if (!partial)
SetPageUptodate(page);
}
- new_i_size = pos + copied;
- if (new_i_size > inode->i_size)
- i_size_write(inode, pos+copied);
+ size_changed = ext4_update_inode_size(inode, pos + copied);
ext4_set_inode_state(inode, EXT4_STATE_JDATA);
EXT4_I(inode)->i_datasync_tid = handle->h_transaction->t_tid;
- if (new_i_size > EXT4_I(inode)->i_disksize) {
- ext4_update_i_disksize(inode, new_i_size);
+ unlock_page(page);
+ page_cache_release(page);
+
+ if (size_changed) {
ret2 = ext4_mark_inode_dirty(handle, inode);
if (!ret)
ret = ret2;
}
- unlock_page(page);
- page_cache_release(page);
if (pos + len > inode->i_size && ext4_can_truncate(inode))
/* if we have allocated more blocks and copied
* less. We will have blocks allocated outside
@@ -2095,6 +2077,7 @@ static int mpage_map_and_submit_extent(handle_t *handle,
struct ext4_map_blocks *map = &mpd->map;
int err;
loff_t disksize;
+ int progress = 0;
mpd->io_submit.io_end->offset =
((loff_t)map->m_lblk) << inode->i_blkbits;
@@ -2111,8 +2094,11 @@ static int mpage_map_and_submit_extent(handle_t *handle,
* is non-zero, a commit should free up blocks.
*/
if ((err == -ENOMEM) ||
- (err == -ENOSPC && ext4_count_free_clusters(sb)))
+ (err == -ENOSPC && ext4_count_free_clusters(sb))) {
+ if (progress)
+ goto update_disksize;
return err;
+ }
ext4_msg(sb, KERN_CRIT,
"Delayed block allocation failed for "
"inode %lu at logical offset %llu with"
@@ -2129,15 +2115,17 @@ static int mpage_map_and_submit_extent(handle_t *handle,
*give_up_on_write = true;
return err;
}
+ progress = 1;
/*
* Update buffer state, submit mapped pages, and get us new
* extent to map
*/
err = mpage_map_and_submit_buffers(mpd);
if (err < 0)
- return err;
+ goto update_disksize;
} while (map->m_len);
+update_disksize:
/*
* Update on-disk size after IO is submitted. Races with
* truncate are avoided by checking i_size under i_data_sem.
diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index 956027711faf..8b0f9ef517d6 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -1412,6 +1412,8 @@ static void mb_free_blocks(struct inode *inode, struct ext4_buddy *e4b,
int last = first + count - 1;
struct super_block *sb = e4b->bd_sb;
+ if (WARN_ON(count == 0))
+ return;
BUG_ON(last >= (sb->s_blocksize << 3));
assert_spin_locked(ext4_group_lock_ptr(sb, e4b->bd_group));
/* Don't bother if the block group is corrupt. */
@@ -3221,6 +3223,8 @@ static void ext4_discard_allocated_blocks(struct ext4_allocation_context *ac)
int err;
if (pa == NULL) {
+ if (ac->ac_f_ex.fe_len == 0)
+ return;
err = ext4_mb_load_buddy(ac->ac_sb, ac->ac_f_ex.fe_group, &e4b);
if (err) {
/*
@@ -3235,6 +3239,7 @@ static void ext4_discard_allocated_blocks(struct ext4_allocation_context *ac)
mb_free_blocks(ac->ac_inode, &e4b, ac->ac_f_ex.fe_start,
ac->ac_f_ex.fe_len);
ext4_unlock_group(ac->ac_sb, ac->ac_f_ex.fe_group);
+ ext4_mb_unload_buddy(&e4b);
return;
}
if (pa->pa_type == MB_INODE_PA)
diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c
index b147a67baa0d..603e4ebbd0ac 100644
--- a/fs/ext4/namei.c
+++ b/fs/ext4/namei.c
@@ -1227,7 +1227,7 @@ static struct buffer_head * ext4_find_entry (struct inode *dir,
buffer */
int num = 0;
ext4_lblk_t nblocks;
- int i, err;
+ int i, err = 0;
int namelen;
*res_dir = NULL;
@@ -1264,7 +1264,11 @@ static struct buffer_head * ext4_find_entry (struct inode *dir,
* return. Otherwise, fall back to doing a search the
* old fashioned way.
*/
- if (bh || (err != ERR_BAD_DX_DIR))
+ if (err == -ENOENT)
+ return NULL;
+ if (err && err != ERR_BAD_DX_DIR)
+ return ERR_PTR(err);
+ if (bh)
return bh;
dxtrace(printk(KERN_DEBUG "ext4_find_entry: dx failed, "
"falling back\n"));
@@ -1295,6 +1299,11 @@ restart:
}
num++;
bh = ext4_getblk(NULL, dir, b++, 0, &err);
+ if (unlikely(err)) {
+ if (ra_max == 0)
+ return ERR_PTR(err);
+ break;
+ }
bh_use[ra_max] = bh;
if (bh)
ll_rw_block(READ | REQ_META | REQ_PRIO,
@@ -1417,6 +1426,8 @@ static struct dentry *ext4_lookup(struct inode *dir, struct dentry *dentry, unsi
return ERR_PTR(-ENAMETOOLONG);
bh = ext4_find_entry(dir, &dentry->d_name, &de, NULL);
+ if (IS_ERR(bh))
+ return (struct dentry *) bh;
inode = NULL;
if (bh) {
__u32 ino = le32_to_cpu(de->inode);
@@ -1450,6 +1461,8 @@ struct dentry *ext4_get_parent(struct dentry *child)
struct buffer_head *bh;
bh = ext4_find_entry(child->d_inode, &dotdot, &de, NULL);
+ if (IS_ERR(bh))
+ return (struct dentry *) bh;
if (!bh)
return ERR_PTR(-ENOENT);
ino = le32_to_cpu(de->inode);
@@ -2727,6 +2740,8 @@ static int ext4_rmdir(struct inode *dir, struct dentry *dentry)
retval = -ENOENT;
bh = ext4_find_entry(dir, &dentry->d_name, &de, NULL);
+ if (IS_ERR(bh))
+ return PTR_ERR(bh);
if (!bh)
goto end_rmdir;
@@ -2794,6 +2809,8 @@ static int ext4_unlink(struct inode *dir, struct dentry *dentry)
retval = -ENOENT;
bh = ext4_find_entry(dir, &dentry->d_name, &de, NULL);
+ if (IS_ERR(bh))
+ return PTR_ERR(bh);
if (!bh)
goto end_unlink;
@@ -3121,6 +3138,8 @@ static int ext4_find_delete_entry(handle_t *handle, struct inode *dir,
struct ext4_dir_entry_2 *de;
bh = ext4_find_entry(dir, d_name, &de, NULL);
+ if (IS_ERR(bh))
+ return PTR_ERR(bh);
if (bh) {
retval = ext4_delete_entry(handle, dir, de, bh);
brelse(bh);
@@ -3128,7 +3147,8 @@ static int ext4_find_delete_entry(handle_t *handle, struct inode *dir,
return retval;
}
-static void ext4_rename_delete(handle_t *handle, struct ext4_renament *ent)
+static void ext4_rename_delete(handle_t *handle, struct ext4_renament *ent,
+ int force_reread)
{
int retval;
/*
@@ -3140,7 +3160,8 @@ static void ext4_rename_delete(handle_t *handle, struct ext4_renament *ent)
if (le32_to_cpu(ent->de->inode) != ent->inode->i_ino ||
ent->de->name_len != ent->dentry->d_name.len ||
strncmp(ent->de->name, ent->dentry->d_name.name,
- ent->de->name_len)) {
+ ent->de->name_len) ||
+ force_reread) {
retval = ext4_find_delete_entry(handle, ent->dir,
&ent->dentry->d_name);
} else {
@@ -3191,6 +3212,7 @@ static int ext4_rename(struct inode *old_dir, struct dentry *old_dentry,
.dentry = new_dentry,
.inode = new_dentry->d_inode,
};
+ int force_reread;
int retval;
dquot_initialize(old.dir);
@@ -3202,6 +3224,8 @@ static int ext4_rename(struct inode *old_dir, struct dentry *old_dentry,
dquot_initialize(new.inode);
old.bh = ext4_find_entry(old.dir, &old.dentry->d_name, &old.de, NULL);
+ if (IS_ERR(old.bh))
+ return PTR_ERR(old.bh);
/*
* Check for inode number is _not_ due to possible IO errors.
* We might rmdir the source, keep it as pwd of some process
@@ -3214,6 +3238,11 @@ static int ext4_rename(struct inode *old_dir, struct dentry *old_dentry,
new.bh = ext4_find_entry(new.dir, &new.dentry->d_name,
&new.de, &new.inlined);
+ if (IS_ERR(new.bh)) {
+ retval = PTR_ERR(new.bh);
+ new.bh = NULL;
+ goto end_rename;
+ }
if (new.bh) {
if (!new.inode) {
brelse(new.bh);
@@ -3246,6 +3275,15 @@ static int ext4_rename(struct inode *old_dir, struct dentry *old_dentry,
if (retval)
goto end_rename;
}
+ /*
+ * If we're renaming a file within an inline_data dir and adding or
+ * setting the new dirent causes a conversion from inline_data to
+ * extents/blockmap, we need to force the dirent delete code to
+ * re-read the directory, or else we end up trying to delete a dirent
+ * from what is now the extent tree root (or a block map).
+ */
+ force_reread = (new.dir->i_ino == old.dir->i_ino &&
+ ext4_test_inode_flag(new.dir, EXT4_INODE_INLINE_DATA));
if (!new.bh) {
retval = ext4_add_entry(handle, new.dentry, old.inode);
if (retval)
@@ -3256,6 +3294,9 @@ static int ext4_rename(struct inode *old_dir, struct dentry *old_dentry,
if (retval)
goto end_rename;
}
+ if (force_reread)
+ force_reread = !ext4_test_inode_flag(new.dir,
+ EXT4_INODE_INLINE_DATA);
/*
* Like most other Unix systems, set the ctime for inodes on a
@@ -3267,7 +3308,7 @@ static int ext4_rename(struct inode *old_dir, struct dentry *old_dentry,
/*
* ok, that's it
*/
- ext4_rename_delete(handle, &old);
+ ext4_rename_delete(handle, &old, force_reread);
if (new.inode) {
ext4_dec_count(handle, new.inode);
@@ -3330,6 +3371,8 @@ static int ext4_cross_rename(struct inode *old_dir, struct dentry *old_dentry,
old.bh = ext4_find_entry(old.dir, &old.dentry->d_name,
&old.de, &old.inlined);
+ if (IS_ERR(old.bh))
+ return PTR_ERR(old.bh);
/*
* Check for inode number is _not_ due to possible IO errors.
* We might rmdir the source, keep it as pwd of some process
@@ -3342,6 +3385,11 @@ static int ext4_cross_rename(struct inode *old_dir, struct dentry *old_dentry,
new.bh = ext4_find_entry(new.dir, &new.dentry->d_name,
&new.de, &new.inlined);
+ if (IS_ERR(new.bh)) {
+ retval = PTR_ERR(new.bh);
+ new.bh = NULL;
+ goto end_rename;
+ }
/* RENAME_EXCHANGE case: old *and* new must both exist */
if (!new.bh || le32_to_cpu(new.de->inode) != new.inode->i_ino)
diff --git a/fs/ext4/resize.c b/fs/ext4/resize.c
index bb0e80f03e2e..1e43b905ff98 100644
--- a/fs/ext4/resize.c
+++ b/fs/ext4/resize.c
@@ -575,6 +575,7 @@ handle_bb:
bh = bclean(handle, sb, block);
if (IS_ERR(bh)) {
err = PTR_ERR(bh);
+ bh = NULL;
goto out;
}
overhead = ext4_group_overhead_blocks(sb, group);
@@ -603,6 +604,7 @@ handle_ib:
bh = bclean(handle, sb, block);
if (IS_ERR(bh)) {
err = PTR_ERR(bh);
+ bh = NULL;
goto out;
}
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index e25ca8fdde7d..05c159218bc2 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -3181,9 +3181,9 @@ static int set_journal_csum_feature_set(struct super_block *sb)
if (EXT4_HAS_RO_COMPAT_FEATURE(sb,
EXT4_FEATURE_RO_COMPAT_METADATA_CSUM)) {
- /* journal checksum v2 */
+ /* journal checksum v3 */
compat = 0;
- incompat = JBD2_FEATURE_INCOMPAT_CSUM_V2;
+ incompat = JBD2_FEATURE_INCOMPAT_CSUM_V3;
} else {
/* journal checksum v1 */
compat = JBD2_FEATURE_COMPAT_CHECKSUM;
@@ -3205,6 +3205,7 @@ static int set_journal_csum_feature_set(struct super_block *sb)
jbd2_journal_clear_features(sbi->s_journal,
JBD2_FEATURE_COMPAT_CHECKSUM, 0,
JBD2_FEATURE_INCOMPAT_ASYNC_COMMIT |
+ JBD2_FEATURE_INCOMPAT_CSUM_V3 |
JBD2_FEATURE_INCOMPAT_CSUM_V2);
}
diff --git a/fs/f2fs/Kconfig b/fs/f2fs/Kconfig
index 214fe1054fce..736a348509f7 100644
--- a/fs/f2fs/Kconfig
+++ b/fs/f2fs/Kconfig
@@ -23,7 +23,7 @@ config F2FS_STAT_FS
mounted as f2fs. Each file shows the whole f2fs information.
/sys/kernel/debug/f2fs/status includes:
- - major file system information managed by f2fs currently
+ - major filesystem information managed by f2fs currently
- average SIT information about whole segments
- current memory footprint consumed by f2fs.
@@ -68,6 +68,6 @@ config F2FS_CHECK_FS
bool "F2FS consistency checking feature"
depends on F2FS_FS
help
- Enables BUG_ONs which check the file system consistency in runtime.
+ Enables BUG_ONs which check the filesystem consistency in runtime.
If you want to improve the performance, say N.
diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c
index 6aeed5bada52..ec3b7a5381fa 100644
--- a/fs/f2fs/checkpoint.c
+++ b/fs/f2fs/checkpoint.c
@@ -160,14 +160,11 @@ static int f2fs_write_meta_page(struct page *page,
goto redirty_out;
if (wbc->for_reclaim)
goto redirty_out;
-
- /* Should not write any meta pages, if any IO error was occurred */
- if (unlikely(is_set_ckpt_flags(F2FS_CKPT(sbi), CP_ERROR_FLAG)))
- goto no_write;
+ if (unlikely(f2fs_cp_error(sbi)))
+ goto redirty_out;
f2fs_wait_on_page_writeback(page, META);
write_meta_page(sbi, page);
-no_write:
dec_page_count(sbi, F2FS_DIRTY_META);
unlock_page(page);
return 0;
@@ -348,7 +345,7 @@ bool exist_written_data(struct f2fs_sb_info *sbi, nid_t ino, int mode)
return e ? true : false;
}
-static void release_dirty_inode(struct f2fs_sb_info *sbi)
+void release_dirty_inode(struct f2fs_sb_info *sbi)
{
struct ino_entry *e, *tmp;
int i;
@@ -446,8 +443,8 @@ static void write_orphan_inodes(struct f2fs_sb_info *sbi, block_t start_blk)
struct f2fs_orphan_block *orphan_blk = NULL;
unsigned int nentries = 0;
unsigned short index;
- unsigned short orphan_blocks = (unsigned short)((sbi->n_orphans +
- (F2FS_ORPHANS_PER_BLOCK - 1)) / F2FS_ORPHANS_PER_BLOCK);
+ unsigned short orphan_blocks =
+ (unsigned short)GET_ORPHAN_BLOCKS(sbi->n_orphans);
struct page *page = NULL;
struct ino_entry *orphan = NULL;
@@ -737,7 +734,7 @@ retry:
/*
* Freeze all the FS-operations for checkpoint.
*/
-static void block_operations(struct f2fs_sb_info *sbi)
+static int block_operations(struct f2fs_sb_info *sbi)
{
struct writeback_control wbc = {
.sync_mode = WB_SYNC_ALL,
@@ -745,6 +742,7 @@ static void block_operations(struct f2fs_sb_info *sbi)
.for_reclaim = 0,
};
struct blk_plug plug;
+ int err = 0;
blk_start_plug(&plug);
@@ -754,11 +752,15 @@ retry_flush_dents:
if (get_pages(sbi, F2FS_DIRTY_DENTS)) {
f2fs_unlock_all(sbi);
sync_dirty_dir_inodes(sbi);
+ if (unlikely(f2fs_cp_error(sbi))) {
+ err = -EIO;
+ goto out;
+ }
goto retry_flush_dents;
}
/*
- * POR: we should ensure that there is no dirty node pages
+ * POR: we should ensure that there are no dirty node pages
* until finishing nat/sit flush.
*/
retry_flush_nodes:
@@ -767,9 +769,16 @@ retry_flush_nodes:
if (get_pages(sbi, F2FS_DIRTY_NODES)) {
up_write(&sbi->node_write);
sync_node_pages(sbi, 0, &wbc);
+ if (unlikely(f2fs_cp_error(sbi))) {
+ f2fs_unlock_all(sbi);
+ err = -EIO;
+ goto out;
+ }
goto retry_flush_nodes;
}
+out:
blk_finish_plug(&plug);
+ return err;
}
static void unblock_operations(struct f2fs_sb_info *sbi)
@@ -813,8 +822,11 @@ static void do_checkpoint(struct f2fs_sb_info *sbi, bool is_umount)
discard_next_dnode(sbi, NEXT_FREE_BLKADDR(sbi, curseg));
/* Flush all the NAT/SIT pages */
- while (get_pages(sbi, F2FS_DIRTY_META))
+ while (get_pages(sbi, F2FS_DIRTY_META)) {
sync_meta_pages(sbi, META, LONG_MAX);
+ if (unlikely(f2fs_cp_error(sbi)))
+ return;
+ }
next_free_nid(sbi, &last_nid);
@@ -825,7 +837,7 @@ static void do_checkpoint(struct f2fs_sb_info *sbi, bool is_umount)
ckpt->elapsed_time = cpu_to_le64(get_mtime(sbi));
ckpt->valid_block_count = cpu_to_le64(valid_user_blocks(sbi));
ckpt->free_segment_count = cpu_to_le32(free_segments(sbi));
- for (i = 0; i < 3; i++) {
+ for (i = 0; i < NR_CURSEG_NODE_TYPE; i++) {
ckpt->cur_node_segno[i] =
cpu_to_le32(curseg_segno(sbi, i + CURSEG_HOT_NODE));
ckpt->cur_node_blkoff[i] =
@@ -833,7 +845,7 @@ static void do_checkpoint(struct f2fs_sb_info *sbi, bool is_umount)
ckpt->alloc_type[i + CURSEG_HOT_NODE] =
curseg_alloc_type(sbi, i + CURSEG_HOT_NODE);
}
- for (i = 0; i < 3; i++) {
+ for (i = 0; i < NR_CURSEG_DATA_TYPE; i++) {
ckpt->cur_data_segno[i] =
cpu_to_le32(curseg_segno(sbi, i + CURSEG_HOT_DATA));
ckpt->cur_data_blkoff[i] =
@@ -848,24 +860,23 @@ static void do_checkpoint(struct f2fs_sb_info *sbi, bool is_umount)
/* 2 cp + n data seg summary + orphan inode blocks */
data_sum_blocks = npages_for_summary_flush(sbi);
- if (data_sum_blocks < 3)
+ if (data_sum_blocks < NR_CURSEG_DATA_TYPE)
set_ckpt_flags(ckpt, CP_COMPACT_SUM_FLAG);
else
clear_ckpt_flags(ckpt, CP_COMPACT_SUM_FLAG);
- orphan_blocks = (sbi->n_orphans + F2FS_ORPHANS_PER_BLOCK - 1)
- / F2FS_ORPHANS_PER_BLOCK;
+ orphan_blocks = GET_ORPHAN_BLOCKS(sbi->n_orphans);
ckpt->cp_pack_start_sum = cpu_to_le32(1 + cp_payload_blks +
orphan_blocks);
if (is_umount) {
set_ckpt_flags(ckpt, CP_UMOUNT_FLAG);
- ckpt->cp_pack_total_block_count = cpu_to_le32(2 +
+ ckpt->cp_pack_total_block_count = cpu_to_le32(F2FS_CP_PACKS+
cp_payload_blks + data_sum_blocks +
orphan_blocks + NR_CURSEG_NODE_TYPE);
} else {
clear_ckpt_flags(ckpt, CP_UMOUNT_FLAG);
- ckpt->cp_pack_total_block_count = cpu_to_le32(2 +
+ ckpt->cp_pack_total_block_count = cpu_to_le32(F2FS_CP_PACKS +
cp_payload_blks + data_sum_blocks +
orphan_blocks);
}
@@ -924,6 +935,9 @@ static void do_checkpoint(struct f2fs_sb_info *sbi, bool is_umount)
/* wait for previous submitted node/meta pages writeback */
wait_on_all_pages_writeback(sbi);
+ if (unlikely(f2fs_cp_error(sbi)))
+ return;
+
filemap_fdatawait_range(NODE_MAPPING(sbi), 0, LONG_MAX);
filemap_fdatawait_range(META_MAPPING(sbi), 0, LONG_MAX);
@@ -934,15 +948,17 @@ static void do_checkpoint(struct f2fs_sb_info *sbi, bool is_umount)
/* Here, we only have one bio having CP pack */
sync_meta_pages(sbi, META_FLUSH, LONG_MAX);
- if (!is_set_ckpt_flags(ckpt, CP_ERROR_FLAG)) {
- clear_prefree_segments(sbi);
- release_dirty_inode(sbi);
- F2FS_RESET_SB_DIRT(sbi);
- }
+ release_dirty_inode(sbi);
+
+ if (unlikely(f2fs_cp_error(sbi)))
+ return;
+
+ clear_prefree_segments(sbi);
+ F2FS_RESET_SB_DIRT(sbi);
}
/*
- * We guarantee that this checkpoint procedure should not fail.
+ * We guarantee that this checkpoint procedure will not fail.
*/
void write_checkpoint(struct f2fs_sb_info *sbi, bool is_umount)
{
@@ -952,7 +968,13 @@ void write_checkpoint(struct f2fs_sb_info *sbi, bool is_umount)
trace_f2fs_write_checkpoint(sbi->sb, is_umount, "start block_ops");
mutex_lock(&sbi->cp_mutex);
- block_operations(sbi);
+
+ if (!sbi->s_dirty)
+ goto out;
+ if (unlikely(f2fs_cp_error(sbi)))
+ goto out;
+ if (block_operations(sbi))
+ goto out;
trace_f2fs_write_checkpoint(sbi->sb, is_umount, "finish block_ops");
@@ -976,9 +998,9 @@ void write_checkpoint(struct f2fs_sb_info *sbi, bool is_umount)
do_checkpoint(sbi, is_umount);
unblock_operations(sbi);
- mutex_unlock(&sbi->cp_mutex);
-
stat_inc_cp_count(sbi->stat_info);
+out:
+ mutex_unlock(&sbi->cp_mutex);
trace_f2fs_write_checkpoint(sbi->sb, is_umount, "finish checkpoint");
}
@@ -999,8 +1021,8 @@ void init_ino_entry_info(struct f2fs_sb_info *sbi)
* for cp pack we can have max 1020*504 orphan entries
*/
sbi->n_orphans = 0;
- sbi->max_orphans = (sbi->blocks_per_seg - 2 - NR_CURSEG_TYPE)
- * F2FS_ORPHANS_PER_BLOCK;
+ sbi->max_orphans = (sbi->blocks_per_seg - F2FS_CP_PACKS -
+ NR_CURSEG_TYPE) * F2FS_ORPHANS_PER_BLOCK;
}
int __init create_checkpoint_caches(void)
diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index 03313099c51c..76de83e25a89 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -53,7 +53,7 @@ static void f2fs_write_end_io(struct bio *bio, int err)
struct page *page = bvec->bv_page;
if (unlikely(err)) {
- SetPageError(page);
+ set_page_dirty(page);
set_bit(AS_EIO, &page->mapping->flags);
f2fs_stop_checkpoint(sbi);
}
@@ -691,7 +691,7 @@ get_next:
allocated = true;
blkaddr = dn.data_blkaddr;
}
- /* Give more consecutive addresses for the read ahead */
+ /* Give more consecutive addresses for the readahead */
if (blkaddr == (bh_result->b_blocknr + ofs)) {
ofs++;
dn.ofs_in_node++;
@@ -739,7 +739,7 @@ static int f2fs_read_data_page(struct file *file, struct page *page)
trace_f2fs_readpage(page, DATA);
- /* If the file has inline data, try to read it directlly */
+ /* If the file has inline data, try to read it directly */
if (f2fs_has_inline_data(inode))
ret = f2fs_read_inline_data(inode, page);
else
@@ -836,10 +836,19 @@ write:
/* Dentry blocks are controlled by checkpoint */
if (S_ISDIR(inode->i_mode)) {
+ if (unlikely(f2fs_cp_error(sbi)))
+ goto redirty_out;
err = do_write_data_page(page, &fio);
goto done;
}
+ /* we should bypass data pages to proceed the kworkder jobs */
+ if (unlikely(f2fs_cp_error(sbi))) {
+ SetPageError(page);
+ unlock_page(page);
+ return 0;
+ }
+
if (!wbc->for_reclaim)
need_balance_fs = true;
else if (has_not_enough_free_secs(sbi, 0))
@@ -927,7 +936,7 @@ static void f2fs_write_failed(struct address_space *mapping, loff_t to)
if (to > inode->i_size) {
truncate_pagecache(inode, inode->i_size);
- truncate_blocks(inode, inode->i_size);
+ truncate_blocks(inode, inode->i_size, true);
}
}
@@ -946,7 +955,7 @@ static int f2fs_write_begin(struct file *file, struct address_space *mapping,
f2fs_balance_fs(sbi);
repeat:
- err = f2fs_convert_inline_data(inode, pos + len);
+ err = f2fs_convert_inline_data(inode, pos + len, NULL);
if (err)
goto fail;
diff --git a/fs/f2fs/debug.c b/fs/f2fs/debug.c
index a441ba33be11..fecebdbfd781 100644
--- a/fs/f2fs/debug.c
+++ b/fs/f2fs/debug.c
@@ -32,7 +32,7 @@ static void update_general_status(struct f2fs_sb_info *sbi)
struct f2fs_stat_info *si = F2FS_STAT(sbi);
int i;
- /* valid check of the segment numbers */
+ /* validation check of the segment numbers */
si->hit_ext = sbi->read_hit_ext;
si->total_ext = sbi->total_hit_ext;
si->ndirty_node = get_pages(sbi, F2FS_DIRTY_NODES);
@@ -152,7 +152,7 @@ static void update_mem_info(struct f2fs_sb_info *sbi)
si->base_mem += NR_DIRTY_TYPE * f2fs_bitmap_size(TOTAL_SEGS(sbi));
si->base_mem += f2fs_bitmap_size(TOTAL_SECS(sbi));
- /* buld nm */
+ /* build nm */
si->base_mem += sizeof(struct f2fs_nm_info);
si->base_mem += __bitmap_size(sbi, NAT_BITMAP);
diff --git a/fs/f2fs/dir.c b/fs/f2fs/dir.c
index bcf893c3d903..155fb056b7f1 100644
--- a/fs/f2fs/dir.c
+++ b/fs/f2fs/dir.c
@@ -124,7 +124,7 @@ static struct f2fs_dir_entry *find_in_block(struct page *dentry_page,
/*
* For the most part, it should be a bug when name_len is zero.
- * We stop here for figuring out where the bugs are occurred.
+ * We stop here for figuring out where the bugs has occurred.
*/
f2fs_bug_on(!de->name_len);
@@ -391,7 +391,7 @@ put_error:
error:
/* once the failed inode becomes a bad inode, i_mode is S_IFREG */
truncate_inode_pages(&inode->i_data, 0);
- truncate_blocks(inode, 0);
+ truncate_blocks(inode, 0, false);
remove_dirty_dir_inode(inode);
remove_inode_page(inode);
return ERR_PTR(err);
@@ -563,7 +563,7 @@ fail:
}
/*
- * It only removes the dentry from the dentry page,corresponding name
+ * It only removes the dentry from the dentry page, corresponding name
* entry in name page does not need to be touched during deletion.
*/
void f2fs_delete_entry(struct f2fs_dir_entry *dentry, struct page *page,
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index 4dab5338a97a..e921242186f6 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -24,7 +24,7 @@
#define f2fs_bug_on(condition) BUG_ON(condition)
#define f2fs_down_write(x, y) down_write_nest_lock(x, y)
#else
-#define f2fs_bug_on(condition)
+#define f2fs_bug_on(condition) WARN_ON(condition)
#define f2fs_down_write(x, y) down_write(x)
#endif
@@ -395,7 +395,7 @@ enum count_type {
};
/*
- * The below are the page types of bios used in submti_bio().
+ * The below are the page types of bios used in submit_bio().
* The available types are:
* DATA User data pages. It operates as async mode.
* NODE Node pages. It operates as async mode.
@@ -470,7 +470,7 @@ struct f2fs_sb_info {
struct list_head dir_inode_list; /* dir inode list */
spinlock_t dir_inode_lock; /* for dir inode list lock */
- /* basic file system units */
+ /* basic filesystem units */
unsigned int log_sectors_per_block; /* log2 sectors per block */
unsigned int log_blocksize; /* log2 block size */
unsigned int blocksize; /* block size */
@@ -799,7 +799,7 @@ static inline block_t __start_cp_addr(struct f2fs_sb_info *sbi)
/*
* odd numbered checkpoint should at cp segment 0
- * and even segent must be at cp segment 1
+ * and even segment must be at cp segment 1
*/
if (!(ckpt_version & 1))
start_addr += sbi->blocks_per_seg;
@@ -1096,6 +1096,11 @@ static inline int f2fs_readonly(struct super_block *sb)
return sb->s_flags & MS_RDONLY;
}
+static inline bool f2fs_cp_error(struct f2fs_sb_info *sbi)
+{
+ return is_set_ckpt_flags(sbi->ckpt, CP_ERROR_FLAG);
+}
+
static inline void f2fs_stop_checkpoint(struct f2fs_sb_info *sbi)
{
set_ckpt_flags(sbi->ckpt, CP_ERROR_FLAG);
@@ -1117,7 +1122,7 @@ static inline void f2fs_stop_checkpoint(struct f2fs_sb_info *sbi)
*/
int f2fs_sync_file(struct file *, loff_t, loff_t, int);
void truncate_data_blocks(struct dnode_of_data *);
-int truncate_blocks(struct inode *, u64);
+int truncate_blocks(struct inode *, u64, bool);
void f2fs_truncate(struct inode *);
int f2fs_getattr(struct vfsmount *, struct dentry *, struct kstat *);
int f2fs_setattr(struct dentry *, struct iattr *);
@@ -1202,10 +1207,8 @@ int sync_node_pages(struct f2fs_sb_info *, nid_t, struct writeback_control *);
bool alloc_nid(struct f2fs_sb_info *, nid_t *);
void alloc_nid_done(struct f2fs_sb_info *, nid_t);
void alloc_nid_failed(struct f2fs_sb_info *, nid_t);
-void recover_node_page(struct f2fs_sb_info *, struct page *,
- struct f2fs_summary *, struct node_info *, block_t);
void recover_inline_xattr(struct inode *, struct page *);
-bool recover_xattr_data(struct inode *, struct page *, block_t);
+void recover_xattr_data(struct inode *, struct page *, block_t);
int recover_inode_page(struct f2fs_sb_info *, struct page *);
int restore_node_summary(struct f2fs_sb_info *, unsigned int,
struct f2fs_summary_block *);
@@ -1238,8 +1241,6 @@ void write_data_page(struct page *, struct dnode_of_data *, block_t *,
void rewrite_data_page(struct page *, block_t, struct f2fs_io_info *);
void recover_data_page(struct f2fs_sb_info *, struct page *,
struct f2fs_summary *, block_t, block_t);
-void rewrite_node_page(struct f2fs_sb_info *, struct page *,
- struct f2fs_summary *, block_t, block_t);
void allocate_data_block(struct f2fs_sb_info *, struct page *,
block_t, block_t *, struct f2fs_summary *, int);
void f2fs_wait_on_page_writeback(struct page *, enum page_type);
@@ -1262,6 +1263,7 @@ int ra_meta_pages(struct f2fs_sb_info *, int, int, int);
long sync_meta_pages(struct f2fs_sb_info *, enum page_type, long);
void add_dirty_inode(struct f2fs_sb_info *, nid_t, int type);
void remove_dirty_inode(struct f2fs_sb_info *, nid_t, int type);
+void release_dirty_inode(struct f2fs_sb_info *);
bool exist_written_data(struct f2fs_sb_info *, nid_t, int);
int acquire_orphan_inode(struct f2fs_sb_info *);
void release_orphan_inode(struct f2fs_sb_info *);
@@ -1439,8 +1441,8 @@ extern const struct inode_operations f2fs_special_inode_operations;
*/
bool f2fs_may_inline(struct inode *);
int f2fs_read_inline_data(struct inode *, struct page *);
-int f2fs_convert_inline_data(struct inode *, pgoff_t);
+int f2fs_convert_inline_data(struct inode *, pgoff_t, struct page *);
int f2fs_write_inline_data(struct inode *, struct page *, unsigned int);
void truncate_inline_data(struct inode *, u64);
-int recover_inline_data(struct inode *, struct page *);
+bool recover_inline_data(struct inode *, struct page *);
#endif
diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index 208f1a9bd569..060aee65aee8 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -41,6 +41,11 @@ static int f2fs_vm_page_mkwrite(struct vm_area_struct *vma,
sb_start_pagefault(inode->i_sb);
+ /* force to convert with normal data indices */
+ err = f2fs_convert_inline_data(inode, MAX_INLINE_DATA + 1, page);
+ if (err)
+ goto out;
+
/* block allocation */
f2fs_lock_op(sbi);
set_new_dnode(&dn, inode, NULL, NULL, 0);
@@ -110,6 +115,25 @@ static int get_parent_ino(struct inode *inode, nid_t *pino)
return 1;
}
+static inline bool need_do_checkpoint(struct inode *inode)
+{
+ struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
+ bool need_cp = false;
+
+ if (!S_ISREG(inode->i_mode) || inode->i_nlink != 1)
+ need_cp = true;
+ else if (file_wrong_pino(inode))
+ need_cp = true;
+ else if (!space_for_roll_forward(sbi))
+ need_cp = true;
+ else if (!is_checkpointed_node(sbi, F2FS_I(inode)->i_pino))
+ need_cp = true;
+ else if (F2FS_I(inode)->xattr_ver == cur_cp_version(F2FS_CKPT(sbi)))
+ need_cp = true;
+
+ return need_cp;
+}
+
int f2fs_sync_file(struct file *file, loff_t start, loff_t end, int datasync)
{
struct inode *inode = file->f_mapping->host;
@@ -154,23 +178,12 @@ int f2fs_sync_file(struct file *file, loff_t start, loff_t end, int datasync)
/* guarantee free sections for fsync */
f2fs_balance_fs(sbi);
- down_read(&fi->i_sem);
-
/*
* Both of fdatasync() and fsync() are able to be recovered from
* sudden-power-off.
*/
- if (!S_ISREG(inode->i_mode) || inode->i_nlink != 1)
- need_cp = true;
- else if (file_wrong_pino(inode))
- need_cp = true;
- else if (!space_for_roll_forward(sbi))
- need_cp = true;
- else if (!is_checkpointed_node(sbi, F2FS_I(inode)->i_pino))
- need_cp = true;
- else if (F2FS_I(inode)->xattr_ver == cur_cp_version(F2FS_CKPT(sbi)))
- need_cp = true;
-
+ down_read(&fi->i_sem);
+ need_cp = need_do_checkpoint(inode);
up_read(&fi->i_sem);
if (need_cp) {
@@ -288,7 +301,7 @@ static loff_t f2fs_seek_block(struct file *file, loff_t offset, int whence)
if (err && err != -ENOENT) {
goto fail;
} else if (err == -ENOENT) {
- /* direct node is not exist */
+ /* direct node does not exists */
if (whence == SEEK_DATA) {
pgofs = PGOFS_OF_NEXT_DNODE(pgofs,
F2FS_I(inode));
@@ -417,7 +430,7 @@ out:
f2fs_put_page(page, 1);
}
-int truncate_blocks(struct inode *inode, u64 from)
+int truncate_blocks(struct inode *inode, u64 from, bool lock)
{
struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
unsigned int blocksize = inode->i_sb->s_blocksize;
@@ -433,14 +446,16 @@ int truncate_blocks(struct inode *inode, u64 from)
free_from = (pgoff_t)
((from + blocksize - 1) >> (sbi->log_blocksize));
- f2fs_lock_op(sbi);
+ if (lock)
+ f2fs_lock_op(sbi);
set_new_dnode(&dn, inode, NULL, NULL, 0);
err = get_dnode_of_data(&dn, free_from, LOOKUP_NODE);
if (err) {
if (err == -ENOENT)
goto free_next;
- f2fs_unlock_op(sbi);
+ if (lock)
+ f2fs_unlock_op(sbi);
trace_f2fs_truncate_blocks_exit(inode, err);
return err;
}
@@ -458,7 +473,8 @@ int truncate_blocks(struct inode *inode, u64 from)
f2fs_put_dnode(&dn);
free_next:
err = truncate_inode_blocks(inode, free_from);
- f2fs_unlock_op(sbi);
+ if (lock)
+ f2fs_unlock_op(sbi);
done:
/* lastly zero out the first data page */
truncate_partial_data_page(inode, from);
@@ -475,7 +491,7 @@ void f2fs_truncate(struct inode *inode)
trace_f2fs_truncate(inode);
- if (!truncate_blocks(inode, i_size_read(inode))) {
+ if (!truncate_blocks(inode, i_size_read(inode), true)) {
inode->i_mtime = inode->i_ctime = CURRENT_TIME;
mark_inode_dirty(inode);
}
@@ -533,7 +549,7 @@ int f2fs_setattr(struct dentry *dentry, struct iattr *attr)
if ((attr->ia_valid & ATTR_SIZE) &&
attr->ia_size != i_size_read(inode)) {
- err = f2fs_convert_inline_data(inode, attr->ia_size);
+ err = f2fs_convert_inline_data(inode, attr->ia_size, NULL);
if (err)
return err;
@@ -622,7 +638,7 @@ static int punch_hole(struct inode *inode, loff_t offset, loff_t len)
loff_t off_start, off_end;
int ret = 0;
- ret = f2fs_convert_inline_data(inode, MAX_INLINE_DATA + 1);
+ ret = f2fs_convert_inline_data(inode, MAX_INLINE_DATA + 1, NULL);
if (ret)
return ret;
@@ -678,7 +694,7 @@ static int expand_inode_data(struct inode *inode, loff_t offset,
if (ret)
return ret;
- ret = f2fs_convert_inline_data(inode, offset + len);
+ ret = f2fs_convert_inline_data(inode, offset + len, NULL);
if (ret)
return ret;
diff --git a/fs/f2fs/gc.c b/fs/f2fs/gc.c
index d7947d90ccc3..943a31db7cc3 100644
--- a/fs/f2fs/gc.c
+++ b/fs/f2fs/gc.c
@@ -58,7 +58,7 @@ static int gc_thread_func(void *data)
* 3. IO subsystem is idle by checking the # of requests in
* bdev's request list.
*
- * Note) We have to avoid triggering GCs too much frequently.
+ * Note) We have to avoid triggering GCs frequently.
* Because it is possible that some segments can be
* invalidated soon after by user update or deletion.
* So, I'd like to wait some time to collect dirty segments.
@@ -222,7 +222,7 @@ static unsigned int get_cb_cost(struct f2fs_sb_info *sbi, unsigned int segno)
u = (vblocks * 100) >> sbi->log_blocks_per_seg;
- /* Handle if the system time is changed by user */
+ /* Handle if the system time has changed by the user */
if (mtime < sit_i->min_mtime)
sit_i->min_mtime = mtime;
if (mtime > sit_i->max_mtime)
@@ -593,7 +593,7 @@ next_step:
if (phase == 2) {
inode = f2fs_iget(sb, dni.ino);
- if (IS_ERR(inode))
+ if (IS_ERR(inode) || is_bad_inode(inode))
continue;
start_bidx = start_bidx_of_node(nofs, F2FS_I(inode));
@@ -693,7 +693,7 @@ int f2fs_gc(struct f2fs_sb_info *sbi)
gc_more:
if (unlikely(!(sbi->sb->s_flags & MS_ACTIVE)))
goto stop;
- if (unlikely(is_set_ckpt_flags(F2FS_CKPT(sbi), CP_ERROR_FLAG)))
+ if (unlikely(f2fs_cp_error(sbi)))
goto stop;
if (gc_type == BG_GC && has_not_enough_free_secs(sbi, nfree)) {
diff --git a/fs/f2fs/gc.h b/fs/f2fs/gc.h
index 5d5eb6047bf4..16f0b2b22999 100644
--- a/fs/f2fs/gc.h
+++ b/fs/f2fs/gc.h
@@ -91,7 +91,7 @@ static inline bool has_enough_invalid_blocks(struct f2fs_sb_info *sbi)
block_t invalid_user_blocks = sbi->user_block_count -
written_block_count(sbi);
/*
- * Background GC is triggered with the following condition.
+ * Background GC is triggered with the following conditions.
* 1. There are a number of invalid blocks.
* 2. There is not enough free space.
*/
diff --git a/fs/f2fs/hash.c b/fs/f2fs/hash.c
index 948d17bf7281..a844fcfb9a8d 100644
--- a/fs/f2fs/hash.c
+++ b/fs/f2fs/hash.c
@@ -42,7 +42,8 @@ static void TEA_transform(unsigned int buf[4], unsigned int const in[])
buf[1] += b1;
}
-static void str2hashbuf(const char *msg, size_t len, unsigned int *buf, int num)
+static void str2hashbuf(const unsigned char *msg, size_t len,
+ unsigned int *buf, int num)
{
unsigned pad, val;
int i;
@@ -73,9 +74,9 @@ f2fs_hash_t f2fs_dentry_hash(const struct qstr *name_info)
{
__u32 hash;
f2fs_hash_t f2fs_hash;
- const char *p;
+ const unsigned char *p;
__u32 in[8], buf[4];
- const char *name = name_info->name;
+ const unsigned char *name = name_info->name;
size_t len = name_info->len;
if ((len <= 2) && (name[0] == '.') &&
diff --git a/fs/f2fs/inline.c b/fs/f2fs/inline.c
index 5beeccef9ae1..3e8ecdf3742b 100644
--- a/fs/f2fs/inline.c
+++ b/fs/f2fs/inline.c
@@ -68,7 +68,7 @@ out:
static int __f2fs_convert_inline_data(struct inode *inode, struct page *page)
{
- int err;
+ int err = 0;
struct page *ipage;
struct dnode_of_data dn;
void *src_addr, *dst_addr;
@@ -86,6 +86,10 @@ static int __f2fs_convert_inline_data(struct inode *inode, struct page *page)
goto out;
}
+ /* someone else converted inline_data already */
+ if (!f2fs_has_inline_data(inode))
+ goto out;
+
/*
* i_addr[0] is not used for inline data,
* so reserving new block will not destroy inline data
@@ -124,9 +128,10 @@ out:
return err;
}
-int f2fs_convert_inline_data(struct inode *inode, pgoff_t to_size)
+int f2fs_convert_inline_data(struct inode *inode, pgoff_t to_size,
+ struct page *page)
{
- struct page *page;
+ struct page *new_page = page;
int err;
if (!f2fs_has_inline_data(inode))
@@ -134,17 +139,20 @@ int f2fs_convert_inline_data(struct inode *inode, pgoff_t to_size)
else if (to_size <= MAX_INLINE_DATA)
return 0;
- page = grab_cache_page(inode->i_mapping, 0);
- if (!page)
- return -ENOMEM;
+ if (!page || page->index != 0) {
+ new_page = grab_cache_page(inode->i_mapping, 0);
+ if (!new_page)
+ return -ENOMEM;
+ }
- err = __f2fs_convert_inline_data(inode, page);
- f2fs_put_page(page, 1);
+ err = __f2fs_convert_inline_data(inode, new_page);
+ if (!page || page->index != 0)
+ f2fs_put_page(new_page, 1);
return err;
}
int f2fs_write_inline_data(struct inode *inode,
- struct page *page, unsigned size)
+ struct page *page, unsigned size)
{
void *src_addr, *dst_addr;
struct page *ipage;
@@ -199,7 +207,7 @@ void truncate_inline_data(struct inode *inode, u64 from)
f2fs_put_page(ipage, 1);
}
-int recover_inline_data(struct inode *inode, struct page *npage)
+bool recover_inline_data(struct inode *inode, struct page *npage)
{
struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
struct f2fs_inode *ri = NULL;
@@ -218,7 +226,7 @@ int recover_inline_data(struct inode *inode, struct page *npage)
ri = F2FS_INODE(npage);
if (f2fs_has_inline_data(inode) &&
- ri && ri->i_inline & F2FS_INLINE_DATA) {
+ ri && (ri->i_inline & F2FS_INLINE_DATA)) {
process_inline:
ipage = get_node_page(sbi, inode->i_ino);
f2fs_bug_on(IS_ERR(ipage));
@@ -230,7 +238,7 @@ process_inline:
memcpy(dst_addr, src_addr, MAX_INLINE_DATA);
update_inode(inode, ipage);
f2fs_put_page(ipage, 1);
- return -1;
+ return true;
}
if (f2fs_has_inline_data(inode)) {
@@ -242,10 +250,10 @@ process_inline:
clear_inode_flag(F2FS_I(inode), FI_INLINE_DATA);
update_inode(inode, ipage);
f2fs_put_page(ipage, 1);
- } else if (ri && ri->i_inline & F2FS_INLINE_DATA) {
- truncate_blocks(inode, 0);
+ } else if (ri && (ri->i_inline & F2FS_INLINE_DATA)) {
+ truncate_blocks(inode, 0, false);
set_inode_flag(F2FS_I(inode), FI_INLINE_DATA);
goto process_inline;
}
- return 0;
+ return false;
}
diff --git a/fs/f2fs/namei.c b/fs/f2fs/namei.c
index 27b03776ffd2..ee103fd7283c 100644
--- a/fs/f2fs/namei.c
+++ b/fs/f2fs/namei.c
@@ -134,9 +134,7 @@ static int f2fs_create(struct inode *dir, struct dentry *dentry, umode_t mode,
return 0;
out:
clear_nlink(inode);
- unlock_new_inode(inode);
- make_bad_inode(inode);
- iput(inode);
+ iget_failed(inode);
alloc_nid_failed(sbi, ino);
return err;
}
@@ -229,7 +227,7 @@ static int f2fs_unlink(struct inode *dir, struct dentry *dentry)
f2fs_delete_entry(de, page, inode);
f2fs_unlock_op(sbi);
- /* In order to evict this inode, we set it dirty */
+ /* In order to evict this inode, we set it dirty */
mark_inode_dirty(inode);
fail:
trace_f2fs_unlink_exit(inode, err);
@@ -267,9 +265,7 @@ static int f2fs_symlink(struct inode *dir, struct dentry *dentry,
return err;
out:
clear_nlink(inode);
- unlock_new_inode(inode);
- make_bad_inode(inode);
- iput(inode);
+ iget_failed(inode);
alloc_nid_failed(sbi, inode->i_ino);
return err;
}
@@ -308,9 +304,7 @@ static int f2fs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
out_fail:
clear_inode_flag(F2FS_I(inode), FI_INC_LINK);
clear_nlink(inode);
- unlock_new_inode(inode);
- make_bad_inode(inode);
- iput(inode);
+ iget_failed(inode);
alloc_nid_failed(sbi, inode->i_ino);
return err;
}
@@ -354,9 +348,7 @@ static int f2fs_mknod(struct inode *dir, struct dentry *dentry,
return 0;
out:
clear_nlink(inode);
- unlock_new_inode(inode);
- make_bad_inode(inode);
- iput(inode);
+ iget_failed(inode);
alloc_nid_failed(sbi, inode->i_ino);
return err;
}
@@ -688,9 +680,7 @@ release_out:
out:
f2fs_unlock_op(sbi);
clear_nlink(inode);
- unlock_new_inode(inode);
- make_bad_inode(inode);
- iput(inode);
+ iget_failed(inode);
alloc_nid_failed(sbi, inode->i_ino);
return err;
}
@@ -704,7 +694,6 @@ const struct inode_operations f2fs_dir_inode_operations = {
.mkdir = f2fs_mkdir,
.rmdir = f2fs_rmdir,
.mknod = f2fs_mknod,
- .rename = f2fs_rename,
.rename2 = f2fs_rename2,
.tmpfile = f2fs_tmpfile,
.getattr = f2fs_getattr,
diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c
index d3d90d284631..45378196e19a 100644
--- a/fs/f2fs/node.c
+++ b/fs/f2fs/node.c
@@ -237,7 +237,7 @@ retry:
nat_get_blkaddr(e) != NULL_ADDR &&
new_blkaddr == NEW_ADDR);
- /* increament version no as node is removed */
+ /* increment version no as node is removed */
if (nat_get_blkaddr(e) != NEW_ADDR && new_blkaddr == NULL_ADDR) {
unsigned char version = nat_get_version(e);
nat_set_version(e, inc_node_version(version));
@@ -274,7 +274,7 @@ int try_to_free_nats(struct f2fs_sb_info *sbi, int nr_shrink)
}
/*
- * This function returns always success
+ * This function always returns success
*/
void get_node_info(struct f2fs_sb_info *sbi, nid_t nid, struct node_info *ni)
{
@@ -650,7 +650,7 @@ static int truncate_partial_nodes(struct dnode_of_data *dn,
/* get indirect nodes in the path */
for (i = 0; i < idx + 1; i++) {
- /* refernece count'll be increased */
+ /* reference count'll be increased */
pages[i] = get_node_page(sbi, nid[i]);
if (IS_ERR(pages[i])) {
err = PTR_ERR(pages[i]);
@@ -823,22 +823,26 @@ int truncate_xattr_node(struct inode *inode, struct page *page)
*/
void remove_inode_page(struct inode *inode)
{
- struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
- struct page *page;
- nid_t ino = inode->i_ino;
struct dnode_of_data dn;
- page = get_node_page(sbi, ino);
- if (IS_ERR(page))
+ set_new_dnode(&dn, inode, NULL, NULL, inode->i_ino);
+ if (get_dnode_of_data(&dn, 0, LOOKUP_NODE))
return;
- if (truncate_xattr_node(inode, page)) {
- f2fs_put_page(page, 1);
+ if (truncate_xattr_node(inode, dn.inode_page)) {
+ f2fs_put_dnode(&dn);
return;
}
- /* 0 is possible, after f2fs_new_inode() is failed */
+
+ /* remove potential inline_data blocks */
+ if (S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode) ||
+ S_ISLNK(inode->i_mode))
+ truncate_data_blocks_range(&dn, 1);
+
+ /* 0 is possible, after f2fs_new_inode() has failed */
f2fs_bug_on(inode->i_blocks != 0 && inode->i_blocks != 1);
- set_new_dnode(&dn, inode, page, page, ino);
+
+ /* will put inode & node pages */
truncate_node(&dn);
}
@@ -1129,8 +1133,11 @@ continue_unlock:
set_fsync_mark(page, 0);
set_dentry_mark(page, 0);
}
- NODE_MAPPING(sbi)->a_ops->writepage(page, wbc);
- wrote++;
+
+ if (NODE_MAPPING(sbi)->a_ops->writepage(page, wbc))
+ unlock_page(page);
+ else
+ wrote++;
if (--wbc->nr_to_write == 0)
break;
@@ -1212,6 +1219,8 @@ static int f2fs_write_node_page(struct page *page,
if (unlikely(sbi->por_doing))
goto redirty_out;
+ if (unlikely(f2fs_cp_error(sbi)))
+ goto redirty_out;
f2fs_wait_on_page_writeback(page, NODE);
@@ -1540,15 +1549,6 @@ void alloc_nid_failed(struct f2fs_sb_info *sbi, nid_t nid)
kmem_cache_free(free_nid_slab, i);
}
-void recover_node_page(struct f2fs_sb_info *sbi, struct page *page,
- struct f2fs_summary *sum, struct node_info *ni,
- block_t new_blkaddr)
-{
- rewrite_node_page(sbi, page, sum, ni->blk_addr, new_blkaddr);
- set_node_addr(sbi, ni, new_blkaddr, false);
- clear_node_page_dirty(page);
-}
-
void recover_inline_xattr(struct inode *inode, struct page *page)
{
struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
@@ -1557,40 +1557,33 @@ void recover_inline_xattr(struct inode *inode, struct page *page)
struct page *ipage;
struct f2fs_inode *ri;
- if (!f2fs_has_inline_xattr(inode))
- return;
-
- if (!IS_INODE(page))
- return;
-
- ri = F2FS_INODE(page);
- if (!(ri->i_inline & F2FS_INLINE_XATTR))
- return;
-
ipage = get_node_page(sbi, inode->i_ino);
f2fs_bug_on(IS_ERR(ipage));
+ ri = F2FS_INODE(page);
+ if (!(ri->i_inline & F2FS_INLINE_XATTR)) {
+ clear_inode_flag(F2FS_I(inode), FI_INLINE_XATTR);
+ goto update_inode;
+ }
+
dst_addr = inline_xattr_addr(ipage);
src_addr = inline_xattr_addr(page);
inline_size = inline_xattr_size(inode);
f2fs_wait_on_page_writeback(ipage, NODE);
memcpy(dst_addr, src_addr, inline_size);
-
+update_inode:
update_inode(inode, ipage);
f2fs_put_page(ipage, 1);
}
-bool recover_xattr_data(struct inode *inode, struct page *page, block_t blkaddr)
+void recover_xattr_data(struct inode *inode, struct page *page, block_t blkaddr)
{
struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
nid_t prev_xnid = F2FS_I(inode)->i_xattr_nid;
nid_t new_xnid = nid_of_node(page);
struct node_info ni;
- if (!f2fs_has_xattr_block(ofs_of_node(page)))
- return false;
-
/* 1: invalidate the previous xattr nid */
if (!prev_xnid)
goto recover_xnid;
@@ -1618,7 +1611,6 @@ recover_xnid:
set_node_addr(sbi, &ni, blkaddr, false);
update_inode_page(inode);
- return true;
}
int recover_inode_page(struct f2fs_sb_info *sbi, struct page *page)
@@ -1637,7 +1629,7 @@ int recover_inode_page(struct f2fs_sb_info *sbi, struct page *page)
if (!ipage)
return -ENOMEM;
- /* Should not use this inode from free nid list */
+ /* Should not use this inode from free nid list */
remove_free_nid(NM_I(sbi), ino);
SetPageUptodate(ipage);
@@ -1651,6 +1643,7 @@ int recover_inode_page(struct f2fs_sb_info *sbi, struct page *page)
dst->i_blocks = cpu_to_le64(1);
dst->i_links = cpu_to_le32(1);
dst->i_xattr_nid = 0;
+ dst->i_inline = src->i_inline & F2FS_INLINE_XATTR;
new_ni = old_ni;
new_ni.ino = ino;
@@ -1659,13 +1652,14 @@ int recover_inode_page(struct f2fs_sb_info *sbi, struct page *page)
WARN_ON(1);
set_node_addr(sbi, &new_ni, NEW_ADDR, false);
inc_valid_inode_count(sbi);
+ set_page_dirty(ipage);
f2fs_put_page(ipage, 1);
return 0;
}
/*
* ra_sum_pages() merge contiguous pages into one bio and submit.
- * these pre-readed pages are alloced in bd_inode's mapping tree.
+ * these pre-read pages are allocated in bd_inode's mapping tree.
*/
static int ra_sum_pages(struct f2fs_sb_info *sbi, struct page **pages,
int start, int nrpages)
@@ -1709,7 +1703,7 @@ int restore_node_summary(struct f2fs_sb_info *sbi,
for (i = 0; !err && i < last_offset; i += nrpages, addr += nrpages) {
nrpages = min(last_offset - i, bio_blocks);
- /* read ahead node pages */
+ /* readahead node pages */
nrpages = ra_sum_pages(sbi, pages, addr, nrpages);
if (!nrpages)
return -ENOMEM;
@@ -1967,7 +1961,7 @@ static int init_node_manager(struct f2fs_sb_info *sbi)
nm_i->max_nid = NAT_ENTRY_PER_BLOCK * nat_blocks;
/* not used nids: 0, node, meta, (and root counted as valid node) */
- nm_i->available_nids = nm_i->max_nid - 3;
+ nm_i->available_nids = nm_i->max_nid - F2FS_RESERVED_NODE_NUM;
nm_i->fcnt = 0;
nm_i->nat_cnt = 0;
nm_i->ram_thresh = DEF_RAM_THRESHOLD;
diff --git a/fs/f2fs/recovery.c b/fs/f2fs/recovery.c
index fe1c6d921ba2..756c41cd2582 100644
--- a/fs/f2fs/recovery.c
+++ b/fs/f2fs/recovery.c
@@ -62,8 +62,10 @@ static int recover_dentry(struct page *ipage, struct inode *inode)
}
retry:
de = f2fs_find_entry(dir, &name, &page);
- if (de && inode->i_ino == le32_to_cpu(de->ino))
+ if (de && inode->i_ino == le32_to_cpu(de->ino)) {
+ clear_inode_flag(F2FS_I(inode), FI_INC_LINK);
goto out_unmap_put;
+ }
if (de) {
einode = f2fs_iget(inode->i_sb, le32_to_cpu(de->ino));
if (IS_ERR(einode)) {
@@ -300,14 +302,19 @@ static int do_recover_data(struct f2fs_sb_info *sbi, struct inode *inode,
struct node_info ni;
int err = 0, recovered = 0;
- recover_inline_xattr(inode, page);
-
- if (recover_inline_data(inode, page))
+ /* step 1: recover xattr */
+ if (IS_INODE(page)) {
+ recover_inline_xattr(inode, page);
+ } else if (f2fs_has_xattr_block(ofs_of_node(page))) {
+ recover_xattr_data(inode, page, blkaddr);
goto out;
+ }
- if (recover_xattr_data(inode, page, blkaddr))
+ /* step 2: recover inline data */
+ if (recover_inline_data(inode, page))
goto out;
+ /* step 3: recover data indices */
start = start_bidx_of_node(ofs_of_node(page), fi);
end = start + ADDRS_PER_PAGE(page, fi);
@@ -364,8 +371,6 @@ static int do_recover_data(struct f2fs_sb_info *sbi, struct inode *inode,
fill_node_footer(dn.node_page, dn.nid, ni.ino,
ofs_of_node(page), false);
set_page_dirty(dn.node_page);
-
- recover_node_page(sbi, dn.node_page, &sum, &ni, blkaddr);
err:
f2fs_put_dnode(&dn);
f2fs_unlock_op(sbi);
@@ -452,6 +457,9 @@ int recover_fsync_data(struct f2fs_sb_info *sbi)
/* step #1: find fsynced inode numbers */
sbi->por_doing = true;
+ /* prevent checkpoint */
+ mutex_lock(&sbi->cp_mutex);
+
blkaddr = NEXT_FREE_BLKADDR(sbi, curseg);
err = find_fsync_dnodes(sbi, &inode_list);
@@ -465,7 +473,8 @@ int recover_fsync_data(struct f2fs_sb_info *sbi)
/* step #2: recover data */
err = recover_data(sbi, &inode_list, CURSEG_WARM_NODE);
- f2fs_bug_on(!list_empty(&inode_list));
+ if (!err)
+ f2fs_bug_on(!list_empty(&inode_list));
out:
destroy_fsync_dnodes(&inode_list);
kmem_cache_destroy(fsync_entry_slab);
@@ -482,8 +491,13 @@ out:
/* Flush all the NAT/SIT pages */
while (get_pages(sbi, F2FS_DIRTY_META))
sync_meta_pages(sbi, META, LONG_MAX);
+ set_ckpt_flags(sbi->ckpt, CP_ERROR_FLAG);
+ mutex_unlock(&sbi->cp_mutex);
} else if (need_writecp) {
+ mutex_unlock(&sbi->cp_mutex);
write_checkpoint(sbi, false);
+ } else {
+ mutex_unlock(&sbi->cp_mutex);
}
return err;
}
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index 0dfeebae2a50..0aa337cd5bba 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -62,7 +62,7 @@ static inline unsigned long __reverse_ffs(unsigned long word)
}
/*
- * __find_rev_next(_zero)_bit is copied from lib/find_next_bit.c becasue
+ * __find_rev_next(_zero)_bit is copied from lib/find_next_bit.c because
* f2fs_set_bit makes MSB and LSB reversed in a byte.
* Example:
* LSB <--> MSB
@@ -808,7 +808,7 @@ static void __refresh_next_blkoff(struct f2fs_sb_info *sbi,
}
/*
- * This function always allocates a used segment (from dirty seglist) by SSR
+ * This function always allocates a used segment(from dirty seglist) by SSR
* manner, so it should recover the existing segment information of valid blocks
*/
static void change_curseg(struct f2fs_sb_info *sbi, int type, bool reuse)
@@ -1103,55 +1103,6 @@ void recover_data_page(struct f2fs_sb_info *sbi,
mutex_unlock(&curseg->curseg_mutex);
}
-void rewrite_node_page(struct f2fs_sb_info *sbi,
- struct page *page, struct f2fs_summary *sum,
- block_t old_blkaddr, block_t new_blkaddr)
-{
- struct sit_info *sit_i = SIT_I(sbi);
- int type = CURSEG_WARM_NODE;
- struct curseg_info *curseg;
- unsigned int segno, old_cursegno;
- block_t next_blkaddr = next_blkaddr_of_node(page);
- unsigned int next_segno = GET_SEGNO(sbi, next_blkaddr);
- struct f2fs_io_info fio = {
- .type = NODE,
- .rw = WRITE_SYNC,
- };
-
- curseg = CURSEG_I(sbi, type);
-
- mutex_lock(&curseg->curseg_mutex);
- mutex_lock(&sit_i->sentry_lock);
-
- segno = GET_SEGNO(sbi, new_blkaddr);
- old_cursegno = curseg->segno;
-
- /* change the current segment */
- if (segno != curseg->segno) {
- curseg->next_segno = segno;
- change_curseg(sbi, type, true);
- }
- curseg->next_blkoff = GET_BLKOFF_FROM_SEG0(sbi, new_blkaddr);
- __add_sum_entry(sbi, type, sum);
-
- /* change the current log to the next block addr in advance */
- if (next_segno != segno) {
- curseg->next_segno = next_segno;
- change_curseg(sbi, type, true);
- }
- curseg->next_blkoff = GET_BLKOFF_FROM_SEG0(sbi, next_blkaddr);
-
- /* rewrite node page */
- set_page_writeback(page);
- f2fs_submit_page_mbio(sbi, page, new_blkaddr, &fio);
- f2fs_submit_merged_bio(sbi, NODE, WRITE);
- refresh_sit_entry(sbi, old_blkaddr, new_blkaddr);
- locate_dirty_segment(sbi, old_cursegno);
-
- mutex_unlock(&sit_i->sentry_lock);
- mutex_unlock(&curseg->curseg_mutex);
-}
-
static inline bool is_merged_page(struct f2fs_sb_info *sbi,
struct page *page, enum page_type type)
{
diff --git a/fs/f2fs/segment.h b/fs/f2fs/segment.h
index 55973f7b0330..ff483257283b 100644
--- a/fs/f2fs/segment.h
+++ b/fs/f2fs/segment.h
@@ -549,7 +549,7 @@ static inline void verify_block_addr(struct f2fs_sb_info *sbi, block_t blk_addr)
}
/*
- * Summary block is always treated as invalid block
+ * Summary block is always treated as an invalid block
*/
static inline void check_block_count(struct f2fs_sb_info *sbi,
int segno, struct f2fs_sit_entry *raw_sit)
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index 657582fc7601..41bdf511003d 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -432,9 +432,15 @@ static void f2fs_put_super(struct super_block *sb)
stop_gc_thread(sbi);
/* We don't need to do checkpoint when it's clean */
- if (sbi->s_dirty && get_pages(sbi, F2FS_DIRTY_NODES))
+ if (sbi->s_dirty)
write_checkpoint(sbi, true);
+ /*
+ * normally superblock is clean, so we need to release this.
+ * In addition, EIO will skip do checkpoint, we need this as well.
+ */
+ release_dirty_inode(sbi);
+
iput(sbi->node_inode);
iput(sbi->meta_inode);
@@ -457,9 +463,6 @@ int f2fs_sync_fs(struct super_block *sb, int sync)
trace_f2fs_sync_fs(sb, sync);
- if (!sbi->s_dirty && !get_pages(sbi, F2FS_DIRTY_NODES))
- return 0;
-
if (sync) {
mutex_lock(&sbi->gc_mutex);
write_checkpoint(sbi, false);
@@ -505,8 +508,8 @@ static int f2fs_statfs(struct dentry *dentry, struct kstatfs *buf)
buf->f_bfree = buf->f_blocks - valid_user_blocks(sbi) - ovp_count;
buf->f_bavail = user_block_count - valid_user_blocks(sbi);
- buf->f_files = sbi->total_node_count;
- buf->f_ffree = sbi->total_node_count - valid_inode_count(sbi);
+ buf->f_files = sbi->total_node_count - F2FS_RESERVED_NODE_NUM;
+ buf->f_ffree = buf->f_files - valid_inode_count(sbi);
buf->f_namelen = F2FS_NAME_LEN;
buf->f_fsid.val[0] = (u32)id;
@@ -663,7 +666,7 @@ restore_gc:
if (need_restart_gc) {
if (start_gc_thread(sbi))
f2fs_msg(sbi->sb, KERN_WARNING,
- "background gc thread is stop");
+ "background gc thread has stopped");
} else if (need_stop_gc) {
stop_gc_thread(sbi);
}
@@ -812,7 +815,7 @@ static int sanity_check_ckpt(struct f2fs_sb_info *sbi)
if (unlikely(fsmeta >= total))
return 1;
- if (unlikely(is_set_ckpt_flags(ckpt, CP_ERROR_FLAG))) {
+ if (unlikely(f2fs_cp_error(sbi))) {
f2fs_msg(sbi->sb, KERN_ERR, "A bug case: need to run fsck");
return 1;
}
@@ -899,8 +902,10 @@ static int f2fs_fill_super(struct super_block *sb, void *data, int silent)
struct buffer_head *raw_super_buf;
struct inode *root;
long err = -EINVAL;
+ bool retry = true;
int i;
+try_onemore:
/* allocate memory for f2fs-specific super block info */
sbi = kzalloc(sizeof(struct f2fs_sb_info), GFP_KERNEL);
if (!sbi)
@@ -1080,9 +1085,11 @@ static int f2fs_fill_super(struct super_block *sb, void *data, int silent)
/* recover fsynced data */
if (!test_opt(sbi, DISABLE_ROLL_FORWARD)) {
err = recover_fsync_data(sbi);
- if (err)
+ if (err) {
f2fs_msg(sb, KERN_ERR,
"Cannot recover all fsync data errno=%ld", err);
+ goto free_kobj;
+ }
}
/*
@@ -1123,6 +1130,13 @@ free_sb_buf:
brelse(raw_super_buf);
free_sbi:
kfree(sbi);
+
+ /* give only one another chance */
+ if (retry) {
+ retry = 0;
+ shrink_dcache_sb(sb);
+ goto try_onemore;
+ }
return err;
}
diff --git a/fs/f2fs/xattr.c b/fs/f2fs/xattr.c
index 8bea941ee309..728a5dc3dc16 100644
--- a/fs/f2fs/xattr.c
+++ b/fs/f2fs/xattr.c
@@ -528,7 +528,7 @@ static int __f2fs_setxattr(struct inode *inode, int index,
int free;
/*
* If value is NULL, it is remove operation.
- * In case of update operation, we caculate free.
+ * In case of update operation, we calculate free.
*/
free = MIN_OFFSET(inode) - ((char *)last - (char *)base_addr);
if (found)
diff --git a/fs/fscache/object.c b/fs/fscache/object.c
index d3b4539f1651..da032daf0e0d 100644
--- a/fs/fscache/object.c
+++ b/fs/fscache/object.c
@@ -982,6 +982,7 @@ nomem:
submit_op_failed:
clear_bit(FSCACHE_OBJECT_IS_LIVE, &object->flags);
spin_unlock(&cookie->lock);
+ fscache_unuse_cookie(object);
kfree(op);
_leave(" [EIO]");
return transit_to(KILL_OBJECT);
diff --git a/fs/fscache/page.c b/fs/fscache/page.c
index 85332b9d19d1..de33b3fccca6 100644
--- a/fs/fscache/page.c
+++ b/fs/fscache/page.c
@@ -44,6 +44,19 @@ void __fscache_wait_on_page_write(struct fscache_cookie *cookie, struct page *pa
EXPORT_SYMBOL(__fscache_wait_on_page_write);
/*
+ * wait for a page to finish being written to the cache. Put a timeout here
+ * since we might be called recursively via parent fs.
+ */
+static
+bool release_page_wait_timeout(struct fscache_cookie *cookie, struct page *page)
+{
+ wait_queue_head_t *wq = bit_waitqueue(&cookie->flags, 0);
+
+ return wait_event_timeout(*wq, !__fscache_check_page_write(cookie, page),
+ HZ);
+}
+
+/*
* decide whether a page can be released, possibly by cancelling a store to it
* - we're allowed to sleep if __GFP_WAIT is flagged
*/
@@ -115,7 +128,10 @@ page_busy:
}
fscache_stat(&fscache_n_store_vmscan_wait);
- __fscache_wait_on_page_write(cookie, page);
+ if (!release_page_wait_timeout(cookie, page))
+ _debug("fscache writeout timeout page: %p{%lx}",
+ page, page->index);
+
gfp &= ~__GFP_WAIT;
goto try_again;
}
@@ -182,7 +198,7 @@ int __fscache_attr_changed(struct fscache_cookie *cookie)
{
struct fscache_operation *op;
struct fscache_object *object;
- bool wake_cookie;
+ bool wake_cookie = false;
_enter("%p", cookie);
@@ -212,15 +228,16 @@ int __fscache_attr_changed(struct fscache_cookie *cookie)
__fscache_use_cookie(cookie);
if (fscache_submit_exclusive_op(object, op) < 0)
- goto nobufs;
+ goto nobufs_dec;
spin_unlock(&cookie->lock);
fscache_stat(&fscache_n_attr_changed_ok);
fscache_put_operation(op);
_leave(" = 0");
return 0;
-nobufs:
+nobufs_dec:
wake_cookie = __fscache_unuse_cookie(cookie);
+nobufs:
spin_unlock(&cookie->lock);
kfree(op);
if (wake_cookie)
diff --git a/fs/gfs2/bmap.c b/fs/gfs2/bmap.c
index e6ee5b6e8d99..f0b945ab853e 100644
--- a/fs/gfs2/bmap.c
+++ b/fs/gfs2/bmap.c
@@ -359,7 +359,7 @@ static inline void release_metapath(struct metapath *mp)
* Returns: The length of the extent (minimum of one block)
*/
-static inline unsigned int gfs2_extent_length(void *start, unsigned int len, __be64 *ptr, unsigned limit, int *eob)
+static inline unsigned int gfs2_extent_length(void *start, unsigned int len, __be64 *ptr, size_t limit, int *eob)
{
const __be64 *end = (start + len);
const __be64 *first = ptr;
@@ -449,7 +449,7 @@ static int gfs2_bmap_alloc(struct inode *inode, const sector_t lblock,
struct buffer_head *bh_map, struct metapath *mp,
const unsigned int sheight,
const unsigned int height,
- const unsigned int maxlen)
+ const size_t maxlen)
{
struct gfs2_inode *ip = GFS2_I(inode);
struct gfs2_sbd *sdp = GFS2_SB(inode);
@@ -483,7 +483,8 @@ static int gfs2_bmap_alloc(struct inode *inode, const sector_t lblock,
} else {
/* Need to allocate indirect blocks */
ptrs_per_blk = height > 1 ? sdp->sd_inptrs : sdp->sd_diptrs;
- dblks = min(maxlen, ptrs_per_blk - mp->mp_list[end_of_metadata]);
+ dblks = min(maxlen, (size_t)(ptrs_per_blk -
+ mp->mp_list[end_of_metadata]));
if (height == ip->i_height) {
/* Writing into existing tree, extend tree down */
iblks = height - sheight;
@@ -605,7 +606,7 @@ int gfs2_block_map(struct inode *inode, sector_t lblock,
struct gfs2_inode *ip = GFS2_I(inode);
struct gfs2_sbd *sdp = GFS2_SB(inode);
unsigned int bsize = sdp->sd_sb.sb_bsize;
- const unsigned int maxlen = bh_map->b_size >> inode->i_blkbits;
+ const size_t maxlen = bh_map->b_size >> inode->i_blkbits;
const u64 *arr = sdp->sd_heightsize;
__be64 *ptr;
u64 size;
diff --git a/fs/gfs2/file.c b/fs/gfs2/file.c
index 26b3f952e6b1..7f4ed3daa38c 100644
--- a/fs/gfs2/file.c
+++ b/fs/gfs2/file.c
@@ -26,6 +26,7 @@
#include <linux/dlm.h>
#include <linux/dlm_plock.h>
#include <linux/aio.h>
+#include <linux/delay.h>
#include "gfs2.h"
#include "incore.h"
@@ -979,9 +980,10 @@ static int do_flock(struct file *file, int cmd, struct file_lock *fl)
unsigned int state;
int flags;
int error = 0;
+ int sleeptime;
state = (fl->fl_type == F_WRLCK) ? LM_ST_EXCLUSIVE : LM_ST_SHARED;
- flags = (IS_SETLKW(cmd) ? 0 : LM_FLAG_TRY) | GL_EXACT;
+ flags = (IS_SETLKW(cmd) ? 0 : LM_FLAG_TRY_1CB) | GL_EXACT;
mutex_lock(&fp->f_fl_mutex);
@@ -1001,7 +1003,14 @@ static int do_flock(struct file *file, int cmd, struct file_lock *fl)
gfs2_holder_init(gl, state, flags, fl_gh);
gfs2_glock_put(gl);
}
- error = gfs2_glock_nq(fl_gh);
+ for (sleeptime = 1; sleeptime <= 4; sleeptime <<= 1) {
+ error = gfs2_glock_nq(fl_gh);
+ if (error != GLR_TRYFAILED)
+ break;
+ fl_gh->gh_flags = LM_FLAG_TRY | GL_EXACT;
+ fl_gh->gh_error = 0;
+ msleep(sleeptime);
+ }
if (error) {
gfs2_holder_uninit(fl_gh);
if (error == GLR_TRYFAILED)
@@ -1024,7 +1033,7 @@ static void do_unflock(struct file *file, struct file_lock *fl)
mutex_lock(&fp->f_fl_mutex);
flock_lock_file_wait(file, fl);
if (fl_gh->gh_gl) {
- gfs2_glock_dq_wait(fl_gh);
+ gfs2_glock_dq(fl_gh);
gfs2_holder_uninit(fl_gh);
}
mutex_unlock(&fp->f_fl_mutex);
diff --git a/fs/gfs2/incore.h b/fs/gfs2/incore.h
index 67d310c9ada3..39e7e9959b74 100644
--- a/fs/gfs2/incore.h
+++ b/fs/gfs2/incore.h
@@ -262,6 +262,9 @@ struct gfs2_holder {
unsigned long gh_ip;
};
+/* Number of quota types we support */
+#define GFS2_MAXQUOTAS 2
+
/* Resource group multi-block reservation, in order of appearance:
Step 1. Function prepares to write, allocates a mb, sets the size hint.
@@ -282,8 +285,8 @@ struct gfs2_blkreserv {
u64 rs_inum; /* Inode number for reservation */
/* ancillary quota stuff */
- struct gfs2_quota_data *rs_qa_qd[2 * MAXQUOTAS];
- struct gfs2_holder rs_qa_qd_ghs[2 * MAXQUOTAS];
+ struct gfs2_quota_data *rs_qa_qd[2 * GFS2_MAXQUOTAS];
+ struct gfs2_holder rs_qa_qd_ghs[2 * GFS2_MAXQUOTAS];
unsigned int rs_qa_qd_num;
};
diff --git a/fs/gfs2/inode.c b/fs/gfs2/inode.c
index e62e59477884..fc8ac2ee0667 100644
--- a/fs/gfs2/inode.c
+++ b/fs/gfs2/inode.c
@@ -626,8 +626,10 @@ static int gfs2_create_inode(struct inode *dir, struct dentry *dentry,
if (!IS_ERR(inode)) {
d = d_splice_alias(inode, dentry);
error = PTR_ERR(d);
- if (IS_ERR(d))
+ if (IS_ERR(d)) {
+ inode = ERR_CAST(d);
goto fail_gunlock;
+ }
error = 0;
if (file) {
if (S_ISREG(inode->i_mode)) {
@@ -840,8 +842,10 @@ static struct dentry *__gfs2_lookup(struct inode *dir, struct dentry *dentry,
int error;
inode = gfs2_lookupi(dir, &dentry->d_name, 0);
- if (!inode)
+ if (inode == NULL) {
+ d_add(dentry, NULL);
return NULL;
+ }
if (IS_ERR(inode))
return ERR_CAST(inode);
@@ -854,7 +858,6 @@ static struct dentry *__gfs2_lookup(struct inode *dir, struct dentry *dentry,
d = d_splice_alias(inode, dentry);
if (IS_ERR(d)) {
- iput(inode);
gfs2_glock_dq_uninit(&gh);
return d;
}
diff --git a/fs/gfs2/super.c b/fs/gfs2/super.c
index 2607ff13d486..a346f56c4c6d 100644
--- a/fs/gfs2/super.c
+++ b/fs/gfs2/super.c
@@ -1294,7 +1294,7 @@ static int gfs2_show_options(struct seq_file *s, struct dentry *root)
int val;
if (is_ancestor(root, sdp->sd_master_dir))
- seq_printf(s, ",meta");
+ seq_puts(s, ",meta");
if (args->ar_lockproto[0])
seq_printf(s, ",lockproto=%s", args->ar_lockproto);
if (args->ar_locktable[0])
@@ -1302,13 +1302,13 @@ static int gfs2_show_options(struct seq_file *s, struct dentry *root)
if (args->ar_hostdata[0])
seq_printf(s, ",hostdata=%s", args->ar_hostdata);
if (args->ar_spectator)
- seq_printf(s, ",spectator");
+ seq_puts(s, ",spectator");
if (args->ar_localflocks)
- seq_printf(s, ",localflocks");
+ seq_puts(s, ",localflocks");
if (args->ar_debug)
- seq_printf(s, ",debug");
+ seq_puts(s, ",debug");
if (args->ar_posix_acl)
- seq_printf(s, ",acl");
+ seq_puts(s, ",acl");
if (args->ar_quota != GFS2_QUOTA_DEFAULT) {
char *state;
switch (args->ar_quota) {
@@ -1328,7 +1328,7 @@ static int gfs2_show_options(struct seq_file *s, struct dentry *root)
seq_printf(s, ",quota=%s", state);
}
if (args->ar_suiddir)
- seq_printf(s, ",suiddir");
+ seq_puts(s, ",suiddir");
if (args->ar_data != GFS2_DATA_DEFAULT) {
char *state;
switch (args->ar_data) {
@@ -1345,7 +1345,7 @@ static int gfs2_show_options(struct seq_file *s, struct dentry *root)
seq_printf(s, ",data=%s", state);
}
if (args->ar_discard)
- seq_printf(s, ",discard");
+ seq_puts(s, ",discard");
val = sdp->sd_tune.gt_logd_secs;
if (val != 30)
seq_printf(s, ",commit=%d", val);
@@ -1376,11 +1376,11 @@ static int gfs2_show_options(struct seq_file *s, struct dentry *root)
seq_printf(s, ",errors=%s", state);
}
if (test_bit(SDF_NOBARRIERS, &sdp->sd_flags))
- seq_printf(s, ",nobarrier");
+ seq_puts(s, ",nobarrier");
if (test_bit(SDF_DEMOTE, &sdp->sd_flags))
- seq_printf(s, ",demote_interface_used");
+ seq_puts(s, ",demote_interface_used");
if (args->ar_rgrplvb)
- seq_printf(s, ",rgrplvb");
+ seq_puts(s, ",rgrplvb");
return 0;
}
diff --git a/fs/isofs/inode.c b/fs/isofs/inode.c
index 4556ce1af5b0..5ddaf8625d3b 100644
--- a/fs/isofs/inode.c
+++ b/fs/isofs/inode.c
@@ -61,7 +61,7 @@ static void isofs_put_super(struct super_block *sb)
return;
}
-static int isofs_read_inode(struct inode *);
+static int isofs_read_inode(struct inode *, int relocated);
static int isofs_statfs (struct dentry *, struct kstatfs *);
static struct kmem_cache *isofs_inode_cachep;
@@ -1259,7 +1259,7 @@ out_toomany:
goto out;
}
-static int isofs_read_inode(struct inode *inode)
+static int isofs_read_inode(struct inode *inode, int relocated)
{
struct super_block *sb = inode->i_sb;
struct isofs_sb_info *sbi = ISOFS_SB(sb);
@@ -1404,7 +1404,7 @@ static int isofs_read_inode(struct inode *inode)
*/
if (!high_sierra) {
- parse_rock_ridge_inode(de, inode);
+ parse_rock_ridge_inode(de, inode, relocated);
/* if we want uid/gid set, override the rock ridge setting */
if (sbi->s_uid_set)
inode->i_uid = sbi->s_uid;
@@ -1483,9 +1483,10 @@ static int isofs_iget5_set(struct inode *ino, void *data)
* offset that point to the underlying meta-data for the inode. The
* code below is otherwise similar to the iget() code in
* include/linux/fs.h */
-struct inode *isofs_iget(struct super_block *sb,
- unsigned long block,
- unsigned long offset)
+struct inode *__isofs_iget(struct super_block *sb,
+ unsigned long block,
+ unsigned long offset,
+ int relocated)
{
unsigned long hashval;
struct inode *inode;
@@ -1507,7 +1508,7 @@ struct inode *isofs_iget(struct super_block *sb,
return ERR_PTR(-ENOMEM);
if (inode->i_state & I_NEW) {
- ret = isofs_read_inode(inode);
+ ret = isofs_read_inode(inode, relocated);
if (ret < 0) {
iget_failed(inode);
inode = ERR_PTR(ret);
diff --git a/fs/isofs/isofs.h b/fs/isofs/isofs.h
index 99167238518d..0ac4c1f73fbd 100644
--- a/fs/isofs/isofs.h
+++ b/fs/isofs/isofs.h
@@ -107,7 +107,7 @@ extern int iso_date(char *, int);
struct inode; /* To make gcc happy */
-extern int parse_rock_ridge_inode(struct iso_directory_record *, struct inode *);
+extern int parse_rock_ridge_inode(struct iso_directory_record *, struct inode *, int relocated);
extern int get_rock_ridge_filename(struct iso_directory_record *, char *, struct inode *);
extern int isofs_name_translate(struct iso_directory_record *, char *, struct inode *);
@@ -118,9 +118,24 @@ extern struct dentry *isofs_lookup(struct inode *, struct dentry *, unsigned int
extern struct buffer_head *isofs_bread(struct inode *, sector_t);
extern int isofs_get_blocks(struct inode *, sector_t, struct buffer_head **, unsigned long);
-extern struct inode *isofs_iget(struct super_block *sb,
- unsigned long block,
- unsigned long offset);
+struct inode *__isofs_iget(struct super_block *sb,
+ unsigned long block,
+ unsigned long offset,
+ int relocated);
+
+static inline struct inode *isofs_iget(struct super_block *sb,
+ unsigned long block,
+ unsigned long offset)
+{
+ return __isofs_iget(sb, block, offset, 0);
+}
+
+static inline struct inode *isofs_iget_reloc(struct super_block *sb,
+ unsigned long block,
+ unsigned long offset)
+{
+ return __isofs_iget(sb, block, offset, 1);
+}
/* Because the inode number is no longer relevant to finding the
* underlying meta-data for an inode, we are free to choose a more
diff --git a/fs/isofs/rock.c b/fs/isofs/rock.c
index c0bf42472e40..f488bbae541a 100644
--- a/fs/isofs/rock.c
+++ b/fs/isofs/rock.c
@@ -288,12 +288,16 @@ eio:
goto out;
}
+#define RR_REGARD_XA 1
+#define RR_RELOC_DE 2
+
static int
parse_rock_ridge_inode_internal(struct iso_directory_record *de,
- struct inode *inode, int regard_xa)
+ struct inode *inode, int flags)
{
int symlink_len = 0;
int cnt, sig;
+ unsigned int reloc_block;
struct inode *reloc;
struct rock_ridge *rr;
int rootflag;
@@ -305,7 +309,7 @@ parse_rock_ridge_inode_internal(struct iso_directory_record *de,
init_rock_state(&rs, inode);
setup_rock_ridge(de, inode, &rs);
- if (regard_xa) {
+ if (flags & RR_REGARD_XA) {
rs.chr += 14;
rs.len -= 14;
if (rs.len < 0)
@@ -485,12 +489,22 @@ repeat:
"relocated directory\n");
goto out;
case SIG('C', 'L'):
- ISOFS_I(inode)->i_first_extent =
- isonum_733(rr->u.CL.location);
- reloc =
- isofs_iget(inode->i_sb,
- ISOFS_I(inode)->i_first_extent,
- 0);
+ if (flags & RR_RELOC_DE) {
+ printk(KERN_ERR
+ "ISOFS: Recursive directory relocation "
+ "is not supported\n");
+ goto eio;
+ }
+ reloc_block = isonum_733(rr->u.CL.location);
+ if (reloc_block == ISOFS_I(inode)->i_iget5_block &&
+ ISOFS_I(inode)->i_iget5_offset == 0) {
+ printk(KERN_ERR
+ "ISOFS: Directory relocation points to "
+ "itself\n");
+ goto eio;
+ }
+ ISOFS_I(inode)->i_first_extent = reloc_block;
+ reloc = isofs_iget_reloc(inode->i_sb, reloc_block, 0);
if (IS_ERR(reloc)) {
ret = PTR_ERR(reloc);
goto out;
@@ -637,9 +651,11 @@ static char *get_symlink_chunk(char *rpnt, struct rock_ridge *rr, char *plimit)
return rpnt;
}
-int parse_rock_ridge_inode(struct iso_directory_record *de, struct inode *inode)
+int parse_rock_ridge_inode(struct iso_directory_record *de, struct inode *inode,
+ int relocated)
{
- int result = parse_rock_ridge_inode_internal(de, inode, 0);
+ int flags = relocated ? RR_RELOC_DE : 0;
+ int result = parse_rock_ridge_inode_internal(de, inode, flags);
/*
* if rockridge flag was reset and we didn't look for attributes
@@ -647,7 +663,8 @@ int parse_rock_ridge_inode(struct iso_directory_record *de, struct inode *inode)
*/
if ((ISOFS_SB(inode->i_sb)->s_rock_offset == -1)
&& (ISOFS_SB(inode->i_sb)->s_rock == 2)) {
- result = parse_rock_ridge_inode_internal(de, inode, 14);
+ result = parse_rock_ridge_inode_internal(de, inode,
+ flags | RR_REGARD_XA);
}
return result;
}
diff --git a/fs/jbd2/commit.c b/fs/jbd2/commit.c
index 6fac74349856..b73e0215baa7 100644
--- a/fs/jbd2/commit.c
+++ b/fs/jbd2/commit.c
@@ -97,7 +97,7 @@ static void jbd2_commit_block_csum_set(journal_t *j, struct buffer_head *bh)
struct commit_header *h;
__u32 csum;
- if (!JBD2_HAS_INCOMPAT_FEATURE(j, JBD2_FEATURE_INCOMPAT_CSUM_V2))
+ if (!jbd2_journal_has_csum_v2or3(j))
return;
h = (struct commit_header *)(bh->b_data);
@@ -313,11 +313,11 @@ static __u32 jbd2_checksum_data(__u32 crc32_sum, struct buffer_head *bh)
return checksum;
}
-static void write_tag_block(int tag_bytes, journal_block_tag_t *tag,
+static void write_tag_block(journal_t *j, journal_block_tag_t *tag,
unsigned long long block)
{
tag->t_blocknr = cpu_to_be32(block & (u32)~0);
- if (tag_bytes > JBD2_TAG_SIZE32)
+ if (JBD2_HAS_INCOMPAT_FEATURE(j, JBD2_FEATURE_INCOMPAT_64BIT))
tag->t_blocknr_high = cpu_to_be32((block >> 31) >> 1);
}
@@ -327,7 +327,7 @@ static void jbd2_descr_block_csum_set(journal_t *j,
struct jbd2_journal_block_tail *tail;
__u32 csum;
- if (!JBD2_HAS_INCOMPAT_FEATURE(j, JBD2_FEATURE_INCOMPAT_CSUM_V2))
+ if (!jbd2_journal_has_csum_v2or3(j))
return;
tail = (struct jbd2_journal_block_tail *)(bh->b_data + j->j_blocksize -
@@ -340,12 +340,13 @@ static void jbd2_descr_block_csum_set(journal_t *j,
static void jbd2_block_tag_csum_set(journal_t *j, journal_block_tag_t *tag,
struct buffer_head *bh, __u32 sequence)
{
+ journal_block_tag3_t *tag3 = (journal_block_tag3_t *)tag;
struct page *page = bh->b_page;
__u8 *addr;
__u32 csum32;
__be32 seq;
- if (!JBD2_HAS_INCOMPAT_FEATURE(j, JBD2_FEATURE_INCOMPAT_CSUM_V2))
+ if (!jbd2_journal_has_csum_v2or3(j))
return;
seq = cpu_to_be32(sequence);
@@ -355,8 +356,10 @@ static void jbd2_block_tag_csum_set(journal_t *j, journal_block_tag_t *tag,
bh->b_size);
kunmap_atomic(addr);
- /* We only have space to store the lower 16 bits of the crc32c. */
- tag->t_checksum = cpu_to_be16(csum32);
+ if (JBD2_HAS_INCOMPAT_FEATURE(j, JBD2_FEATURE_INCOMPAT_CSUM_V3))
+ tag3->t_checksum = cpu_to_be32(csum32);
+ else
+ tag->t_checksum = cpu_to_be16(csum32);
}
/*
* jbd2_journal_commit_transaction
@@ -396,7 +399,7 @@ void jbd2_journal_commit_transaction(journal_t *journal)
LIST_HEAD(io_bufs);
LIST_HEAD(log_bufs);
- if (JBD2_HAS_INCOMPAT_FEATURE(journal, JBD2_FEATURE_INCOMPAT_CSUM_V2))
+ if (jbd2_journal_has_csum_v2or3(journal))
csum_size = sizeof(struct jbd2_journal_block_tail);
/*
@@ -690,7 +693,7 @@ void jbd2_journal_commit_transaction(journal_t *journal)
tag_flag |= JBD2_FLAG_SAME_UUID;
tag = (journal_block_tag_t *) tagp;
- write_tag_block(tag_bytes, tag, jh2bh(jh)->b_blocknr);
+ write_tag_block(journal, tag, jh2bh(jh)->b_blocknr);
tag->t_flags = cpu_to_be16(tag_flag);
jbd2_block_tag_csum_set(journal, tag, wbuf[bufs],
commit_transaction->t_tid);
diff --git a/fs/jbd2/journal.c b/fs/jbd2/journal.c
index 67b8e303946c..19d74d86d99c 100644
--- a/fs/jbd2/journal.c
+++ b/fs/jbd2/journal.c
@@ -124,7 +124,7 @@ EXPORT_SYMBOL(__jbd2_debug);
/* Checksumming functions */
static int jbd2_verify_csum_type(journal_t *j, journal_superblock_t *sb)
{
- if (!JBD2_HAS_INCOMPAT_FEATURE(j, JBD2_FEATURE_INCOMPAT_CSUM_V2))
+ if (!jbd2_journal_has_csum_v2or3(j))
return 1;
return sb->s_checksum_type == JBD2_CRC32C_CHKSUM;
@@ -145,7 +145,7 @@ static __be32 jbd2_superblock_csum(journal_t *j, journal_superblock_t *sb)
static int jbd2_superblock_csum_verify(journal_t *j, journal_superblock_t *sb)
{
- if (!JBD2_HAS_INCOMPAT_FEATURE(j, JBD2_FEATURE_INCOMPAT_CSUM_V2))
+ if (!jbd2_journal_has_csum_v2or3(j))
return 1;
return sb->s_checksum == jbd2_superblock_csum(j, sb);
@@ -153,7 +153,7 @@ static int jbd2_superblock_csum_verify(journal_t *j, journal_superblock_t *sb)
static void jbd2_superblock_csum_set(journal_t *j, journal_superblock_t *sb)
{
- if (!JBD2_HAS_INCOMPAT_FEATURE(j, JBD2_FEATURE_INCOMPAT_CSUM_V2))
+ if (!jbd2_journal_has_csum_v2or3(j))
return;
sb->s_checksum = jbd2_superblock_csum(j, sb);
@@ -1522,21 +1522,29 @@ static int journal_get_superblock(journal_t *journal)
goto out;
}
- if (JBD2_HAS_COMPAT_FEATURE(journal, JBD2_FEATURE_COMPAT_CHECKSUM) &&
- JBD2_HAS_INCOMPAT_FEATURE(journal, JBD2_FEATURE_INCOMPAT_CSUM_V2)) {
+ if (jbd2_journal_has_csum_v2or3(journal) &&
+ JBD2_HAS_COMPAT_FEATURE(journal, JBD2_FEATURE_COMPAT_CHECKSUM)) {
/* Can't have checksum v1 and v2 on at the same time! */
printk(KERN_ERR "JBD2: Can't enable checksumming v1 and v2 "
"at the same time!\n");
goto out;
}
+ if (JBD2_HAS_INCOMPAT_FEATURE(journal, JBD2_FEATURE_INCOMPAT_CSUM_V2) &&
+ JBD2_HAS_INCOMPAT_FEATURE(journal, JBD2_FEATURE_INCOMPAT_CSUM_V3)) {
+ /* Can't have checksum v2 and v3 at the same time! */
+ printk(KERN_ERR "JBD2: Can't enable checksumming v2 and v3 "
+ "at the same time!\n");
+ goto out;
+ }
+
if (!jbd2_verify_csum_type(journal, sb)) {
printk(KERN_ERR "JBD2: Unknown checksum type\n");
goto out;
}
/* Load the checksum driver */
- if (JBD2_HAS_INCOMPAT_FEATURE(journal, JBD2_FEATURE_INCOMPAT_CSUM_V2)) {
+ if (jbd2_journal_has_csum_v2or3(journal)) {
journal->j_chksum_driver = crypto_alloc_shash("crc32c", 0, 0);
if (IS_ERR(journal->j_chksum_driver)) {
printk(KERN_ERR "JBD2: Cannot load crc32c driver.\n");
@@ -1553,7 +1561,7 @@ static int journal_get_superblock(journal_t *journal)
}
/* Precompute checksum seed for all metadata */
- if (JBD2_HAS_INCOMPAT_FEATURE(journal, JBD2_FEATURE_INCOMPAT_CSUM_V2))
+ if (jbd2_journal_has_csum_v2or3(journal))
journal->j_csum_seed = jbd2_chksum(journal, ~0, sb->s_uuid,
sizeof(sb->s_uuid));
@@ -1813,8 +1821,14 @@ int jbd2_journal_set_features (journal_t *journal, unsigned long compat,
if (!jbd2_journal_check_available_features(journal, compat, ro, incompat))
return 0;
- /* Asking for checksumming v2 and v1? Only give them v2. */
- if (incompat & JBD2_FEATURE_INCOMPAT_CSUM_V2 &&
+ /* If enabling v2 checksums, turn on v3 instead */
+ if (incompat & JBD2_FEATURE_INCOMPAT_CSUM_V2) {
+ incompat &= ~JBD2_FEATURE_INCOMPAT_CSUM_V2;
+ incompat |= JBD2_FEATURE_INCOMPAT_CSUM_V3;
+ }
+
+ /* Asking for checksumming v3 and v1? Only give them v3. */
+ if (incompat & JBD2_FEATURE_INCOMPAT_CSUM_V3 &&
compat & JBD2_FEATURE_COMPAT_CHECKSUM)
compat &= ~JBD2_FEATURE_COMPAT_CHECKSUM;
@@ -1823,8 +1837,8 @@ int jbd2_journal_set_features (journal_t *journal, unsigned long compat,
sb = journal->j_superblock;
- /* If enabling v2 checksums, update superblock */
- if (INCOMPAT_FEATURE_ON(JBD2_FEATURE_INCOMPAT_CSUM_V2)) {
+ /* If enabling v3 checksums, update superblock */
+ if (INCOMPAT_FEATURE_ON(JBD2_FEATURE_INCOMPAT_CSUM_V3)) {
sb->s_checksum_type = JBD2_CRC32C_CHKSUM;
sb->s_feature_compat &=
~cpu_to_be32(JBD2_FEATURE_COMPAT_CHECKSUM);
@@ -1842,8 +1856,7 @@ int jbd2_journal_set_features (journal_t *journal, unsigned long compat,
}
/* Precompute checksum seed for all metadata */
- if (JBD2_HAS_INCOMPAT_FEATURE(journal,
- JBD2_FEATURE_INCOMPAT_CSUM_V2))
+ if (jbd2_journal_has_csum_v2or3(journal))
journal->j_csum_seed = jbd2_chksum(journal, ~0,
sb->s_uuid,
sizeof(sb->s_uuid));
@@ -1852,7 +1865,8 @@ int jbd2_journal_set_features (journal_t *journal, unsigned long compat,
/* If enabling v1 checksums, downgrade superblock */
if (COMPAT_FEATURE_ON(JBD2_FEATURE_COMPAT_CHECKSUM))
sb->s_feature_incompat &=
- ~cpu_to_be32(JBD2_FEATURE_INCOMPAT_CSUM_V2);
+ ~cpu_to_be32(JBD2_FEATURE_INCOMPAT_CSUM_V2 |
+ JBD2_FEATURE_INCOMPAT_CSUM_V3);
sb->s_feature_compat |= cpu_to_be32(compat);
sb->s_feature_ro_compat |= cpu_to_be32(ro);
@@ -2165,16 +2179,20 @@ int jbd2_journal_blocks_per_page(struct inode *inode)
*/
size_t journal_tag_bytes(journal_t *journal)
{
- journal_block_tag_t tag;
- size_t x = 0;
+ size_t sz;
+
+ if (JBD2_HAS_INCOMPAT_FEATURE(journal, JBD2_FEATURE_INCOMPAT_CSUM_V3))
+ return sizeof(journal_block_tag3_t);
+
+ sz = sizeof(journal_block_tag_t);
if (JBD2_HAS_INCOMPAT_FEATURE(journal, JBD2_FEATURE_INCOMPAT_CSUM_V2))
- x += sizeof(tag.t_checksum);
+ sz += sizeof(__u16);
if (JBD2_HAS_INCOMPAT_FEATURE(journal, JBD2_FEATURE_INCOMPAT_64BIT))
- return x + JBD2_TAG_SIZE64;
+ return sz;
else
- return x + JBD2_TAG_SIZE32;
+ return sz - sizeof(__u32);
}
/*
diff --git a/fs/jbd2/recovery.c b/fs/jbd2/recovery.c
index 3b6bb19d60b1..9b329b55ffe3 100644
--- a/fs/jbd2/recovery.c
+++ b/fs/jbd2/recovery.c
@@ -181,7 +181,7 @@ static int jbd2_descr_block_csum_verify(journal_t *j,
__be32 provided;
__u32 calculated;
- if (!JBD2_HAS_INCOMPAT_FEATURE(j, JBD2_FEATURE_INCOMPAT_CSUM_V2))
+ if (!jbd2_journal_has_csum_v2or3(j))
return 1;
tail = (struct jbd2_journal_block_tail *)(buf + j->j_blocksize -
@@ -205,7 +205,7 @@ static int count_tags(journal_t *journal, struct buffer_head *bh)
int nr = 0, size = journal->j_blocksize;
int tag_bytes = journal_tag_bytes(journal);
- if (JBD2_HAS_INCOMPAT_FEATURE(journal, JBD2_FEATURE_INCOMPAT_CSUM_V2))
+ if (jbd2_journal_has_csum_v2or3(journal))
size -= sizeof(struct jbd2_journal_block_tail);
tagp = &bh->b_data[sizeof(journal_header_t)];
@@ -338,10 +338,11 @@ int jbd2_journal_skip_recovery(journal_t *journal)
return err;
}
-static inline unsigned long long read_tag_block(int tag_bytes, journal_block_tag_t *tag)
+static inline unsigned long long read_tag_block(journal_t *journal,
+ journal_block_tag_t *tag)
{
unsigned long long block = be32_to_cpu(tag->t_blocknr);
- if (tag_bytes > JBD2_TAG_SIZE32)
+ if (JBD2_HAS_INCOMPAT_FEATURE(journal, JBD2_FEATURE_INCOMPAT_64BIT))
block |= (u64)be32_to_cpu(tag->t_blocknr_high) << 32;
return block;
}
@@ -384,7 +385,7 @@ static int jbd2_commit_block_csum_verify(journal_t *j, void *buf)
__be32 provided;
__u32 calculated;
- if (!JBD2_HAS_INCOMPAT_FEATURE(j, JBD2_FEATURE_INCOMPAT_CSUM_V2))
+ if (!jbd2_journal_has_csum_v2or3(j))
return 1;
h = buf;
@@ -399,17 +400,21 @@ static int jbd2_commit_block_csum_verify(journal_t *j, void *buf)
static int jbd2_block_tag_csum_verify(journal_t *j, journal_block_tag_t *tag,
void *buf, __u32 sequence)
{
+ journal_block_tag3_t *tag3 = (journal_block_tag3_t *)tag;
__u32 csum32;
__be32 seq;
- if (!JBD2_HAS_INCOMPAT_FEATURE(j, JBD2_FEATURE_INCOMPAT_CSUM_V2))
+ if (!jbd2_journal_has_csum_v2or3(j))
return 1;
seq = cpu_to_be32(sequence);
csum32 = jbd2_chksum(j, j->j_csum_seed, (__u8 *)&seq, sizeof(seq));
csum32 = jbd2_chksum(j, csum32, buf, j->j_blocksize);
- return tag->t_checksum == cpu_to_be16(csum32);
+ if (JBD2_HAS_INCOMPAT_FEATURE(j, JBD2_FEATURE_INCOMPAT_CSUM_V3))
+ return tag3->t_checksum == cpu_to_be32(csum32);
+ else
+ return tag->t_checksum == cpu_to_be16(csum32);
}
static int do_one_pass(journal_t *journal,
@@ -426,6 +431,7 @@ static int do_one_pass(journal_t *journal,
int tag_bytes = journal_tag_bytes(journal);
__u32 crc32_sum = ~0; /* Transactional Checksums */
int descr_csum_size = 0;
+ int block_error = 0;
/*
* First thing is to establish what we expect to find in the log
@@ -512,8 +518,7 @@ static int do_one_pass(journal_t *journal,
switch(blocktype) {
case JBD2_DESCRIPTOR_BLOCK:
/* Verify checksum first */
- if (JBD2_HAS_INCOMPAT_FEATURE(journal,
- JBD2_FEATURE_INCOMPAT_CSUM_V2))
+ if (jbd2_journal_has_csum_v2or3(journal))
descr_csum_size =
sizeof(struct jbd2_journal_block_tail);
if (descr_csum_size > 0 &&
@@ -574,7 +579,7 @@ static int do_one_pass(journal_t *journal,
unsigned long long blocknr;
J_ASSERT(obh != NULL);
- blocknr = read_tag_block(tag_bytes,
+ blocknr = read_tag_block(journal,
tag);
/* If the block has been
@@ -598,7 +603,8 @@ static int do_one_pass(journal_t *journal,
"checksum recovering "
"block %llu in log\n",
blocknr);
- continue;
+ block_error = 1;
+ goto skip_write;
}
/* Find a buffer for the new
@@ -797,7 +803,8 @@ static int do_one_pass(journal_t *journal,
success = -EIO;
}
}
-
+ if (block_error && success == 0)
+ success = -EIO;
return success;
failed:
@@ -811,7 +818,7 @@ static int jbd2_revoke_block_csum_verify(journal_t *j,
__be32 provided;
__u32 calculated;
- if (!JBD2_HAS_INCOMPAT_FEATURE(j, JBD2_FEATURE_INCOMPAT_CSUM_V2))
+ if (!jbd2_journal_has_csum_v2or3(j))
return 1;
tail = (struct jbd2_journal_revoke_tail *)(buf + j->j_blocksize -
diff --git a/fs/jbd2/revoke.c b/fs/jbd2/revoke.c
index 198c9c10276d..d5e95a175c92 100644
--- a/fs/jbd2/revoke.c
+++ b/fs/jbd2/revoke.c
@@ -91,8 +91,8 @@
#include <linux/list.h>
#include <linux/init.h>
#include <linux/bio.h>
-#endif
#include <linux/log2.h>
+#endif
static struct kmem_cache *jbd2_revoke_record_cache;
static struct kmem_cache *jbd2_revoke_table_cache;
@@ -597,7 +597,7 @@ static void write_one_revoke_record(journal_t *journal,
offset = *offsetp;
/* Do we need to leave space at the end for a checksum? */
- if (JBD2_HAS_INCOMPAT_FEATURE(journal, JBD2_FEATURE_INCOMPAT_CSUM_V2))
+ if (jbd2_journal_has_csum_v2or3(journal))
csum_size = sizeof(struct jbd2_journal_revoke_tail);
/* Make sure we have a descriptor with space left for the record */
@@ -644,7 +644,7 @@ static void jbd2_revoke_csum_set(journal_t *j, struct buffer_head *bh)
struct jbd2_journal_revoke_tail *tail;
__u32 csum;
- if (!JBD2_HAS_INCOMPAT_FEATURE(j, JBD2_FEATURE_INCOMPAT_CSUM_V2))
+ if (!jbd2_journal_has_csum_v2or3(j))
return;
tail = (struct jbd2_journal_revoke_tail *)(bh->b_data + j->j_blocksize -
diff --git a/fs/lockd/svc.c b/fs/lockd/svc.c
index 8f27c93f8d2e..ec9e082f9ecd 100644
--- a/fs/lockd/svc.c
+++ b/fs/lockd/svc.c
@@ -253,13 +253,11 @@ static int lockd_up_net(struct svc_serv *serv, struct net *net)
error = make_socks(serv, net);
if (error < 0)
- goto err_socks;
+ goto err_bind;
set_grace_period(net);
dprintk("lockd_up_net: per-net data created; net=%p\n", net);
return 0;
-err_socks:
- svc_rpcb_cleanup(serv, net);
err_bind:
ln->nlmsvc_users--;
return error;
diff --git a/fs/locks.c b/fs/locks.c
index a6f54802d277..bb08857f90b5 100644
--- a/fs/locks.c
+++ b/fs/locks.c
@@ -247,6 +247,18 @@ void locks_free_lock(struct file_lock *fl)
}
EXPORT_SYMBOL(locks_free_lock);
+static void
+locks_dispose_list(struct list_head *dispose)
+{
+ struct file_lock *fl;
+
+ while (!list_empty(dispose)) {
+ fl = list_first_entry(dispose, struct file_lock, fl_block);
+ list_del_init(&fl->fl_block);
+ locks_free_lock(fl);
+ }
+}
+
void locks_init_lock(struct file_lock *fl)
{
memset(fl, 0, sizeof(struct file_lock));
@@ -285,7 +297,8 @@ EXPORT_SYMBOL(__locks_copy_lock);
void locks_copy_lock(struct file_lock *new, struct file_lock *fl)
{
- locks_release_private(new);
+ /* "new" must be a freshly-initialized lock */
+ WARN_ON_ONCE(new->fl_ops);
__locks_copy_lock(new, fl);
new->fl_file = fl->fl_file;
@@ -650,12 +663,16 @@ static void locks_unlink_lock(struct file_lock **thisfl_p)
*
* Must be called with i_lock held!
*/
-static void locks_delete_lock(struct file_lock **thisfl_p)
+static void locks_delete_lock(struct file_lock **thisfl_p,
+ struct list_head *dispose)
{
struct file_lock *fl = *thisfl_p;
locks_unlink_lock(thisfl_p);
- locks_free_lock(fl);
+ if (dispose)
+ list_add(&fl->fl_block, dispose);
+ else
+ locks_free_lock(fl);
}
/* Determine if lock sys_fl blocks lock caller_fl. Common functionality
@@ -811,6 +828,7 @@ static int flock_lock_file(struct file *filp, struct file_lock *request)
struct inode * inode = file_inode(filp);
int error = 0;
int found = 0;
+ LIST_HEAD(dispose);
if (!(request->fl_flags & FL_ACCESS) && (request->fl_type != F_UNLCK)) {
new_fl = locks_alloc_lock();
@@ -833,7 +851,7 @@ static int flock_lock_file(struct file *filp, struct file_lock *request)
if (request->fl_type == fl->fl_type)
goto out;
found = 1;
- locks_delete_lock(before);
+ locks_delete_lock(before, &dispose);
break;
}
@@ -880,6 +898,7 @@ out:
spin_unlock(&inode->i_lock);
if (new_fl)
locks_free_lock(new_fl);
+ locks_dispose_list(&dispose);
return error;
}
@@ -893,6 +912,7 @@ static int __posix_lock_file(struct inode *inode, struct file_lock *request, str
struct file_lock **before;
int error;
bool added = false;
+ LIST_HEAD(dispose);
/*
* We may need two file_lock structures for this operation,
@@ -988,7 +1008,7 @@ static int __posix_lock_file(struct inode *inode, struct file_lock *request, str
else
request->fl_end = fl->fl_end;
if (added) {
- locks_delete_lock(before);
+ locks_delete_lock(before, &dispose);
continue;
}
request = fl;
@@ -1018,21 +1038,24 @@ static int __posix_lock_file(struct inode *inode, struct file_lock *request, str
* one (This may happen several times).
*/
if (added) {
- locks_delete_lock(before);
+ locks_delete_lock(before, &dispose);
continue;
}
- /* Replace the old lock with the new one.
- * Wake up anybody waiting for the old one,
- * as the change in lock type might satisfy
- * their needs.
+ /*
+ * Replace the old lock with new_fl, and
+ * remove the old one. It's safe to do the
+ * insert here since we know that we won't be
+ * using new_fl later, and that the lock is
+ * just replacing an existing lock.
*/
- locks_wake_up_blocks(fl);
- fl->fl_start = request->fl_start;
- fl->fl_end = request->fl_end;
- fl->fl_type = request->fl_type;
- locks_release_private(fl);
- locks_copy_private(fl, request);
- request = fl;
+ error = -ENOLCK;
+ if (!new_fl)
+ goto out;
+ locks_copy_lock(new_fl, request);
+ request = new_fl;
+ new_fl = NULL;
+ locks_delete_lock(before, &dispose);
+ locks_insert_lock(before, request);
added = true;
}
}
@@ -1093,6 +1116,7 @@ static int __posix_lock_file(struct inode *inode, struct file_lock *request, str
locks_free_lock(new_fl);
if (new_fl2)
locks_free_lock(new_fl2);
+ locks_dispose_list(&dispose);
return error;
}
@@ -1268,7 +1292,7 @@ int lease_modify(struct file_lock **before, int arg)
printk(KERN_ERR "locks_delete_lock: fasync == %p\n", fl->fl_fasync);
fl->fl_fasync = NULL;
}
- locks_delete_lock(before);
+ locks_delete_lock(before, NULL);
}
return 0;
}
@@ -1595,7 +1619,7 @@ static int generic_add_lease(struct file *filp, long arg, struct file_lock **flp
smp_mb();
error = check_conflicting_open(dentry, arg);
if (error)
- locks_unlink_lock(flp);
+ locks_unlink_lock(before);
out:
if (is_deleg)
mutex_unlock(&inode->i_mutex);
@@ -1737,13 +1761,10 @@ static int do_fcntl_add_lease(unsigned int fd, struct file *filp, long arg)
ret = fl;
spin_lock(&inode->i_lock);
error = __vfs_setlease(filp, arg, &ret);
- if (error) {
- spin_unlock(&inode->i_lock);
- locks_free_lock(fl);
- goto out_free_fasync;
- }
- if (ret != fl)
- locks_free_lock(fl);
+ if (error)
+ goto out_unlock;
+ if (ret == fl)
+ fl = NULL;
/*
* fasync_insert_entry() returns the old entry if any.
@@ -1755,9 +1776,10 @@ static int do_fcntl_add_lease(unsigned int fd, struct file *filp, long arg)
new = NULL;
error = __f_setown(filp, task_pid(current), PIDTYPE_PID, 0);
+out_unlock:
spin_unlock(&inode->i_lock);
-
-out_free_fasync:
+ if (fl)
+ locks_free_lock(fl);
if (new)
fasync_free(new);
return error;
@@ -2320,6 +2342,7 @@ void locks_remove_file(struct file *filp)
struct inode * inode = file_inode(filp);
struct file_lock *fl;
struct file_lock **before;
+ LIST_HEAD(dispose);
if (!inode->i_flock)
return;
@@ -2365,12 +2388,13 @@ void locks_remove_file(struct file *filp)
fl->fl_type, fl->fl_flags,
fl->fl_start, fl->fl_end);
- locks_delete_lock(before);
+ locks_delete_lock(before, &dispose);
continue;
}
before = &fl->fl_next;
}
spin_unlock(&inode->i_lock);
+ locks_dispose_list(&dispose);
}
/**
@@ -2452,7 +2476,11 @@ static void lock_get_status(struct seq_file *f, struct file_lock *fl,
seq_puts(f, "FLOCK ADVISORY ");
}
} else if (IS_LEASE(fl)) {
- seq_puts(f, "LEASE ");
+ if (fl->fl_flags & FL_DELEG)
+ seq_puts(f, "DELEG ");
+ else
+ seq_puts(f, "LEASE ");
+
if (lease_breaking(fl))
seq_puts(f, "BREAKING ");
else if (fl->fl_file)
diff --git a/fs/namei.c b/fs/namei.c
index a996bb48dfab..a7b05bf82d31 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -34,6 +34,7 @@
#include <linux/device_cgroup.h>
#include <linux/fs_struct.h>
#include <linux/posix_acl.h>
+#include <linux/hash.h>
#include <asm/uaccess.h>
#include "internal.h"
@@ -643,24 +644,22 @@ static int complete_walk(struct nameidata *nd)
static __always_inline void set_root(struct nameidata *nd)
{
- if (!nd->root.mnt)
- get_fs_root(current->fs, &nd->root);
+ get_fs_root(current->fs, &nd->root);
}
static int link_path_walk(const char *, struct nameidata *);
-static __always_inline void set_root_rcu(struct nameidata *nd)
+static __always_inline unsigned set_root_rcu(struct nameidata *nd)
{
- if (!nd->root.mnt) {
- struct fs_struct *fs = current->fs;
- unsigned seq;
+ struct fs_struct *fs = current->fs;
+ unsigned seq, res;
- do {
- seq = read_seqcount_begin(&fs->seq);
- nd->root = fs->root;
- nd->seq = __read_seqcount_begin(&nd->root.dentry->d_seq);
- } while (read_seqcount_retry(&fs->seq, seq));
- }
+ do {
+ seq = read_seqcount_begin(&fs->seq);
+ nd->root = fs->root;
+ res = __read_seqcount_begin(&nd->root.dentry->d_seq);
+ } while (read_seqcount_retry(&fs->seq, seq));
+ return res;
}
static void path_put_conditional(struct path *path, struct nameidata *nd)
@@ -860,7 +859,8 @@ follow_link(struct path *link, struct nameidata *nd, void **p)
return PTR_ERR(s);
}
if (*s == '/') {
- set_root(nd);
+ if (!nd->root.mnt)
+ set_root(nd);
path_put(&nd->path);
nd->path = nd->root;
path_get(&nd->root);
@@ -1137,13 +1137,15 @@ static bool __follow_mount_rcu(struct nameidata *nd, struct path *path,
*/
*inode = path->dentry->d_inode;
}
- return read_seqretry(&mount_lock, nd->m_seq) &&
+ return !read_seqretry(&mount_lock, nd->m_seq) &&
!(path->dentry->d_flags & DCACHE_NEED_AUTOMOUNT);
}
static int follow_dotdot_rcu(struct nameidata *nd)
{
- set_root_rcu(nd);
+ struct inode *inode = nd->inode;
+ if (!nd->root.mnt)
+ set_root_rcu(nd);
while (1) {
if (nd->path.dentry == nd->root.dentry &&
@@ -1155,6 +1157,7 @@ static int follow_dotdot_rcu(struct nameidata *nd)
struct dentry *parent = old->d_parent;
unsigned seq;
+ inode = parent->d_inode;
seq = read_seqcount_begin(&parent->d_seq);
if (read_seqcount_retry(&old->d_seq, nd->seq))
goto failed;
@@ -1164,6 +1167,7 @@ static int follow_dotdot_rcu(struct nameidata *nd)
}
if (!follow_up_rcu(&nd->path))
break;
+ inode = nd->path.dentry->d_inode;
nd->seq = read_seqcount_begin(&nd->path.dentry->d_seq);
}
while (d_mountpoint(nd->path.dentry)) {
@@ -1173,11 +1177,12 @@ static int follow_dotdot_rcu(struct nameidata *nd)
break;
nd->path.mnt = &mounted->mnt;
nd->path.dentry = mounted->mnt.mnt_root;
+ inode = nd->path.dentry->d_inode;
nd->seq = read_seqcount_begin(&nd->path.dentry->d_seq);
- if (!read_seqretry(&mount_lock, nd->m_seq))
+ if (read_seqretry(&mount_lock, nd->m_seq))
goto failed;
}
- nd->inode = nd->path.dentry->d_inode;
+ nd->inode = inode;
return 0;
failed:
@@ -1256,7 +1261,8 @@ static void follow_mount(struct path *path)
static void follow_dotdot(struct nameidata *nd)
{
- set_root(nd);
+ if (!nd->root.mnt)
+ set_root(nd);
while(1) {
struct dentry *old = nd->path.dentry;
@@ -1634,8 +1640,7 @@ static inline int nested_symlink(struct path *path, struct nameidata *nd)
static inline unsigned int fold_hash(unsigned long hash)
{
- hash += hash >> (8*sizeof(int));
- return hash;
+ return hash_64(hash, 32);
}
#else /* 32-bit case */
@@ -1669,9 +1674,9 @@ EXPORT_SYMBOL(full_name_hash);
/*
* Calculate the length and hash of the path component, and
- * return the length of the component;
+ * return the "hash_len" as the result.
*/
-static inline unsigned long hash_name(const char *name, unsigned int *hashp)
+static inline u64 hash_name(const char *name)
{
unsigned long a, b, adata, bdata, mask, hash, len;
const struct word_at_a_time constants = WORD_AT_A_TIME_CONSTANTS;
@@ -1691,9 +1696,8 @@ static inline unsigned long hash_name(const char *name, unsigned int *hashp)
mask = create_zero_mask(adata | bdata);
hash += a & zero_bytemask(mask);
- *hashp = fold_hash(hash);
-
- return len + find_zero(mask);
+ len += find_zero(mask);
+ return hashlen_create(fold_hash(hash), len);
}
#else
@@ -1711,7 +1715,7 @@ EXPORT_SYMBOL(full_name_hash);
* We know there's a real path component here of at least
* one character.
*/
-static inline unsigned long hash_name(const char *name, unsigned int *hashp)
+static inline u64 hash_name(const char *name)
{
unsigned long hash = init_name_hash();
unsigned long len = 0, c;
@@ -1722,8 +1726,7 @@ static inline unsigned long hash_name(const char *name, unsigned int *hashp)
hash = partial_name_hash(c, hash);
c = (unsigned char)name[len];
} while (c && c != '/');
- *hashp = end_name_hash(hash);
- return len;
+ return hashlen_create(end_name_hash(hash), len);
}
#endif
@@ -1748,20 +1751,17 @@ static int link_path_walk(const char *name, struct nameidata *nd)
/* At this point we know we have a real path component. */
for(;;) {
- struct qstr this;
- long len;
+ u64 hash_len;
int type;
err = may_lookup(nd);
if (err)
break;
- len = hash_name(name, &this.hash);
- this.name = name;
- this.len = len;
+ hash_len = hash_name(name);
type = LAST_NORM;
- if (name[0] == '.') switch (len) {
+ if (name[0] == '.') switch (hashlen_len(hash_len)) {
case 2:
if (name[1] == '.') {
type = LAST_DOTDOT;
@@ -1775,29 +1775,32 @@ static int link_path_walk(const char *name, struct nameidata *nd)
struct dentry *parent = nd->path.dentry;
nd->flags &= ~LOOKUP_JUMPED;
if (unlikely(parent->d_flags & DCACHE_OP_HASH)) {
+ struct qstr this = { { .hash_len = hash_len }, .name = name };
err = parent->d_op->d_hash(parent, &this);
if (err < 0)
break;
+ hash_len = this.hash_len;
+ name = this.name;
}
}
- nd->last = this;
+ nd->last.hash_len = hash_len;
+ nd->last.name = name;
nd->last_type = type;
- if (!name[len])
+ name += hashlen_len(hash_len);
+ if (!*name)
return 0;
/*
* If it wasn't NUL, we know it was '/'. Skip that
* slash, and continue until no more slashes.
*/
do {
- len++;
- } while (unlikely(name[len] == '/'));
- if (!name[len])
+ name++;
+ } while (unlikely(*name == '/'));
+ if (!*name)
return 0;
- name += len;
-
err = walk_component(nd, &next, LOOKUP_FOLLOW);
if (err < 0)
return err;
@@ -1852,7 +1855,7 @@ static int path_init(int dfd, const char *name, unsigned int flags,
if (*name=='/') {
if (flags & LOOKUP_RCU) {
rcu_read_lock();
- set_root_rcu(nd);
+ nd->seq = set_root_rcu(nd);
} else {
set_root(nd);
path_get(&nd->root);
@@ -1903,7 +1906,14 @@ static int path_init(int dfd, const char *name, unsigned int flags,
}
nd->inode = nd->path.dentry->d_inode;
- return 0;
+ if (!(flags & LOOKUP_RCU))
+ return 0;
+ if (likely(!read_seqcount_retry(&nd->path.dentry->d_seq, nd->seq)))
+ return 0;
+ if (!(nd->flags & LOOKUP_ROOT))
+ nd->root.mnt = NULL;
+ rcu_read_unlock();
+ return -ECHILD;
}
static inline int lookup_last(struct nameidata *nd, struct path *path)
diff --git a/fs/namespace.c b/fs/namespace.c
index a01c7730e9af..ef42d9bee212 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -1217,6 +1217,11 @@ static void namespace_unlock(void)
head.first->pprev = &head.first;
INIT_HLIST_HEAD(&unmounted);
+ /* undo decrements we'd done in umount_tree() */
+ hlist_for_each_entry(mnt, &head, mnt_hash)
+ if (mnt->mnt_ex_mountpoint.mnt)
+ mntget(mnt->mnt_ex_mountpoint.mnt);
+
up_write(&namespace_sem);
synchronize_rcu();
@@ -1253,6 +1258,9 @@ void umount_tree(struct mount *mnt, int how)
hlist_add_head(&p->mnt_hash, &tmp_list);
}
+ hlist_for_each_entry(p, &tmp_list, mnt_hash)
+ list_del_init(&p->mnt_child);
+
if (how)
propagate_umount(&tmp_list);
@@ -1263,9 +1271,9 @@ void umount_tree(struct mount *mnt, int how)
p->mnt_ns = NULL;
if (how < 2)
p->mnt.mnt_flags |= MNT_SYNC_UMOUNT;
- list_del_init(&p->mnt_child);
if (mnt_has_parent(p)) {
put_mountpoint(p->mnt_mp);
+ mnt_add_count(p->mnt_parent, -1);
/* move the reference to mountpoint into ->mnt_ex_mountpoint */
p->mnt_ex_mountpoint.dentry = p->mnt_mountpoint;
p->mnt_ex_mountpoint.mnt = &p->mnt_parent->mnt;
diff --git a/fs/nfs/client.c b/fs/nfs/client.c
index 1c5ff6d58385..6a4f3666e273 100644
--- a/fs/nfs/client.c
+++ b/fs/nfs/client.c
@@ -1412,24 +1412,18 @@ int nfs_fs_proc_net_init(struct net *net)
p = proc_create("volumes", S_IFREG|S_IRUGO,
nn->proc_nfsfs, &nfs_volume_list_fops);
if (!p)
- goto error_2;
+ goto error_1;
return 0;
-error_2:
- remove_proc_entry("servers", nn->proc_nfsfs);
error_1:
- remove_proc_entry("fs/nfsfs", NULL);
+ remove_proc_subtree("nfsfs", net->proc_net);
error_0:
return -ENOMEM;
}
void nfs_fs_proc_net_exit(struct net *net)
{
- struct nfs_net *nn = net_generic(net, nfs_net_id);
-
- remove_proc_entry("volumes", nn->proc_nfsfs);
- remove_proc_entry("servers", nn->proc_nfsfs);
- remove_proc_entry("fs/nfsfs", NULL);
+ remove_proc_subtree("nfsfs", net->proc_net);
}
/*
diff --git a/fs/nfs/filelayout/filelayout.c b/fs/nfs/filelayout/filelayout.c
index 1359c4a27393..90978075f730 100644
--- a/fs/nfs/filelayout/filelayout.c
+++ b/fs/nfs/filelayout/filelayout.c
@@ -1269,11 +1269,12 @@ filelayout_search_commit_reqs(struct nfs_commit_info *cinfo, struct page *page)
static void filelayout_retry_commit(struct nfs_commit_info *cinfo, int idx)
{
struct pnfs_ds_commit_info *fl_cinfo = cinfo->ds;
- struct pnfs_commit_bucket *bucket = fl_cinfo->buckets;
+ struct pnfs_commit_bucket *bucket;
struct pnfs_layout_segment *freeme;
int i;
- for (i = idx; i < fl_cinfo->nbuckets; i++, bucket++) {
+ for (i = idx; i < fl_cinfo->nbuckets; i++) {
+ bucket = &fl_cinfo->buckets[i];
if (list_empty(&bucket->committing))
continue;
nfs_retry_commit(&bucket->committing, bucket->clseg, cinfo);
diff --git a/fs/nfs/nfs3acl.c b/fs/nfs/nfs3acl.c
index d0fec260132a..24c6898159cc 100644
--- a/fs/nfs/nfs3acl.c
+++ b/fs/nfs/nfs3acl.c
@@ -129,7 +129,10 @@ static int __nfs3_proc_setacls(struct inode *inode, struct posix_acl *acl,
.rpc_argp = &args,
.rpc_resp = &fattr,
};
- int status;
+ int status = 0;
+
+ if (acl == NULL && (!S_ISDIR(inode->i_mode) || dfacl == NULL))
+ goto out;
status = -EOPNOTSUPP;
if (!nfs_server_capable(inode, NFS_CAP_ACLS))
diff --git a/fs/nfs/nfs4_fs.h b/fs/nfs/nfs4_fs.h
index 92193eddb41d..a8b855ab4e22 100644
--- a/fs/nfs/nfs4_fs.h
+++ b/fs/nfs/nfs4_fs.h
@@ -130,16 +130,15 @@ enum {
*/
struct nfs4_lock_state {
- struct list_head ls_locks; /* Other lock stateids */
- struct nfs4_state * ls_state; /* Pointer to open state */
+ struct list_head ls_locks; /* Other lock stateids */
+ struct nfs4_state * ls_state; /* Pointer to open state */
#define NFS_LOCK_INITIALIZED 0
#define NFS_LOCK_LOST 1
- unsigned long ls_flags;
+ unsigned long ls_flags;
struct nfs_seqid_counter ls_seqid;
- nfs4_stateid ls_stateid;
- atomic_t ls_count;
- fl_owner_t ls_owner;
- struct work_struct ls_release;
+ nfs4_stateid ls_stateid;
+ atomic_t ls_count;
+ fl_owner_t ls_owner;
};
/* bits for nfs4_state->flags */
diff --git a/fs/nfs/nfs4client.c b/fs/nfs/nfs4client.c
index 53e435a95260..ffdb28d86cf8 100644
--- a/fs/nfs/nfs4client.c
+++ b/fs/nfs/nfs4client.c
@@ -482,6 +482,16 @@ int nfs40_walk_client_list(struct nfs_client *new,
spin_lock(&nn->nfs_client_lock);
list_for_each_entry(pos, &nn->nfs_client_list, cl_share_link) {
+
+ if (pos->rpc_ops != new->rpc_ops)
+ continue;
+
+ if (pos->cl_proto != new->cl_proto)
+ continue;
+
+ if (pos->cl_minorversion != new->cl_minorversion)
+ continue;
+
/* If "pos" isn't marked ready, we can't trust the
* remaining fields in "pos" */
if (pos->cl_cons_state > NFS_CS_READY) {
@@ -501,15 +511,6 @@ int nfs40_walk_client_list(struct nfs_client *new,
if (pos->cl_cons_state != NFS_CS_READY)
continue;
- if (pos->rpc_ops != new->rpc_ops)
- continue;
-
- if (pos->cl_proto != new->cl_proto)
- continue;
-
- if (pos->cl_minorversion != new->cl_minorversion)
- continue;
-
if (pos->cl_clientid != new->cl_clientid)
continue;
@@ -622,6 +623,16 @@ int nfs41_walk_client_list(struct nfs_client *new,
spin_lock(&nn->nfs_client_lock);
list_for_each_entry(pos, &nn->nfs_client_list, cl_share_link) {
+
+ if (pos->rpc_ops != new->rpc_ops)
+ continue;
+
+ if (pos->cl_proto != new->cl_proto)
+ continue;
+
+ if (pos->cl_minorversion != new->cl_minorversion)
+ continue;
+
/* If "pos" isn't marked ready, we can't trust the
* remaining fields in "pos", especially the client
* ID and serverowner fields. Wait for CREATE_SESSION
@@ -647,15 +658,6 @@ int nfs41_walk_client_list(struct nfs_client *new,
if (pos->cl_cons_state != NFS_CS_READY)
continue;
- if (pos->rpc_ops != new->rpc_ops)
- continue;
-
- if (pos->cl_proto != new->cl_proto)
- continue;
-
- if (pos->cl_minorversion != new->cl_minorversion)
- continue;
-
if (!nfs4_match_clientids(pos, new))
continue;
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 75ae8d22f067..6ca0c8e7a945 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -2226,9 +2226,13 @@ static int _nfs4_open_and_get_state(struct nfs4_opendata *opendata,
ret = _nfs4_proc_open(opendata);
if (ret != 0) {
if (ret == -ENOENT) {
- d_drop(opendata->dentry);
- d_add(opendata->dentry, NULL);
- nfs_set_verifier(opendata->dentry,
+ dentry = opendata->dentry;
+ if (dentry->d_inode)
+ d_delete(dentry);
+ else if (d_unhashed(dentry))
+ d_add(dentry, NULL);
+
+ nfs_set_verifier(dentry,
nfs_save_change_attribute(opendata->dir->d_inode));
}
goto out;
@@ -2560,6 +2564,7 @@ static void nfs4_close_done(struct rpc_task *task, void *data)
struct nfs4_closedata *calldata = data;
struct nfs4_state *state = calldata->state;
struct nfs_server *server = NFS_SERVER(calldata->inode);
+ nfs4_stateid *res_stateid = NULL;
dprintk("%s: begin!\n", __func__);
if (!nfs4_sequence_done(task, &calldata->res.seq_res))
@@ -2570,12 +2575,12 @@ static void nfs4_close_done(struct rpc_task *task, void *data)
*/
switch (task->tk_status) {
case 0:
- if (calldata->roc)
+ res_stateid = &calldata->res.stateid;
+ if (calldata->arg.fmode == 0 && calldata->roc)
pnfs_roc_set_barrier(state->inode,
calldata->roc_barrier);
- nfs_clear_open_stateid(state, &calldata->res.stateid, 0);
renew_lease(server, calldata->timestamp);
- goto out_release;
+ break;
case -NFS4ERR_ADMIN_REVOKED:
case -NFS4ERR_STALE_STATEID:
case -NFS4ERR_OLD_STATEID:
@@ -2589,7 +2594,7 @@ static void nfs4_close_done(struct rpc_task *task, void *data)
goto out_release;
}
}
- nfs_clear_open_stateid(state, NULL, calldata->arg.fmode);
+ nfs_clear_open_stateid(state, res_stateid, calldata->arg.fmode);
out_release:
nfs_release_seqid(calldata->arg.seqid);
nfs_refresh_inode(calldata->inode, calldata->res.fattr);
@@ -2601,6 +2606,7 @@ static void nfs4_close_prepare(struct rpc_task *task, void *data)
struct nfs4_closedata *calldata = data;
struct nfs4_state *state = calldata->state;
struct inode *inode = calldata->inode;
+ bool is_rdonly, is_wronly, is_rdwr;
int call_close = 0;
dprintk("%s: begin!\n", __func__);
@@ -2608,21 +2614,27 @@ static void nfs4_close_prepare(struct rpc_task *task, void *data)
goto out_wait;
task->tk_msg.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_OPEN_DOWNGRADE];
- calldata->arg.fmode = FMODE_READ|FMODE_WRITE;
spin_lock(&state->owner->so_lock);
+ is_rdwr = test_bit(NFS_O_RDWR_STATE, &state->flags);
+ is_rdonly = test_bit(NFS_O_RDONLY_STATE, &state->flags);
+ is_wronly = test_bit(NFS_O_WRONLY_STATE, &state->flags);
/* Calculate the change in open mode */
+ calldata->arg.fmode = 0;
if (state->n_rdwr == 0) {
- if (state->n_rdonly == 0) {
- call_close |= test_bit(NFS_O_RDONLY_STATE, &state->flags);
- call_close |= test_bit(NFS_O_RDWR_STATE, &state->flags);
- calldata->arg.fmode &= ~FMODE_READ;
- }
- if (state->n_wronly == 0) {
- call_close |= test_bit(NFS_O_WRONLY_STATE, &state->flags);
- call_close |= test_bit(NFS_O_RDWR_STATE, &state->flags);
- calldata->arg.fmode &= ~FMODE_WRITE;
- }
- }
+ if (state->n_rdonly == 0)
+ call_close |= is_rdonly;
+ else if (is_rdonly)
+ calldata->arg.fmode |= FMODE_READ;
+ if (state->n_wronly == 0)
+ call_close |= is_wronly;
+ else if (is_wronly)
+ calldata->arg.fmode |= FMODE_WRITE;
+ } else if (is_rdwr)
+ calldata->arg.fmode |= FMODE_READ|FMODE_WRITE;
+
+ if (calldata->arg.fmode == 0)
+ call_close |= is_rdwr;
+
if (!nfs4_valid_open_stateid(state))
call_close = 0;
spin_unlock(&state->owner->so_lock);
diff --git a/fs/nfs/nfs4state.c b/fs/nfs/nfs4state.c
index a043f618cd5a..22fe35104c0c 100644
--- a/fs/nfs/nfs4state.c
+++ b/fs/nfs/nfs4state.c
@@ -799,18 +799,6 @@ __nfs4_find_lock_state(struct nfs4_state *state, fl_owner_t fl_owner)
return NULL;
}
-static void
-free_lock_state_work(struct work_struct *work)
-{
- struct nfs4_lock_state *lsp = container_of(work,
- struct nfs4_lock_state, ls_release);
- struct nfs4_state *state = lsp->ls_state;
- struct nfs_server *server = state->owner->so_server;
- struct nfs_client *clp = server->nfs_client;
-
- clp->cl_mvops->free_lock_state(server, lsp);
-}
-
/*
* Return a compatible lock_state. If no initialized lock_state structure
* exists, return an uninitialized one.
@@ -832,7 +820,6 @@ static struct nfs4_lock_state *nfs4_alloc_lock_state(struct nfs4_state *state, f
if (lsp->ls_seqid.owner_id < 0)
goto out_free;
INIT_LIST_HEAD(&lsp->ls_locks);
- INIT_WORK(&lsp->ls_release, free_lock_state_work);
return lsp;
out_free:
kfree(lsp);
@@ -896,12 +883,13 @@ void nfs4_put_lock_state(struct nfs4_lock_state *lsp)
if (list_empty(&state->lock_states))
clear_bit(LK_STATE_IN_USE, &state->flags);
spin_unlock(&state->state_lock);
- if (test_bit(NFS_LOCK_INITIALIZED, &lsp->ls_flags))
- queue_work(nfsiod_workqueue, &lsp->ls_release);
- else {
- server = state->owner->so_server;
+ server = state->owner->so_server;
+ if (test_bit(NFS_LOCK_INITIALIZED, &lsp->ls_flags)) {
+ struct nfs_client *clp = server->nfs_client;
+
+ clp->cl_mvops->free_lock_state(server, lsp);
+ } else
nfs4_free_lock_state(server, lsp);
- }
}
static void nfs4_fl_copy_lock(struct file_lock *dst, struct file_lock *src)
diff --git a/fs/nfs/pagelist.c b/fs/nfs/pagelist.c
index ba491926df5f..be7cbce6e4c7 100644
--- a/fs/nfs/pagelist.c
+++ b/fs/nfs/pagelist.c
@@ -116,7 +116,7 @@ __nfs_iocounter_wait(struct nfs_io_counter *c)
if (atomic_read(&c->io_count) == 0)
break;
ret = nfs_wait_bit_killable(&q.key);
- } while (atomic_read(&c->io_count) != 0);
+ } while (atomic_read(&c->io_count) != 0 && !ret);
finish_wait(wq, &q.wait);
return ret;
}
@@ -139,26 +139,49 @@ nfs_iocounter_wait(struct nfs_io_counter *c)
/*
* nfs_page_group_lock - lock the head of the page group
* @req - request in group that is to be locked
+ * @nonblock - if true don't block waiting for lock
*
* this lock must be held if modifying the page group list
*
- * returns result from wait_on_bit_lock: 0 on success, < 0 on error
+ * return 0 on success, < 0 on error: -EDELAY if nonblocking or the
+ * result from wait_on_bit_lock
+ *
+ * NOTE: calling with nonblock=false should always have set the
+ * lock bit (see fs/buffer.c and other uses of wait_on_bit_lock
+ * with TASK_UNINTERRUPTIBLE), so there is no need to check the result.
*/
int
-nfs_page_group_lock(struct nfs_page *req, bool wait)
+nfs_page_group_lock(struct nfs_page *req, bool nonblock)
{
struct nfs_page *head = req->wb_head;
- int ret;
WARN_ON_ONCE(head != head->wb_head);
- do {
- ret = wait_on_bit_lock(&head->wb_flags, PG_HEADLOCK,
- TASK_UNINTERRUPTIBLE);
- } while (wait && ret != 0);
+ if (!test_and_set_bit(PG_HEADLOCK, &head->wb_flags))
+ return 0;
- WARN_ON_ONCE(ret > 0);
- return ret;
+ if (!nonblock)
+ return wait_on_bit_lock(&head->wb_flags, PG_HEADLOCK,
+ TASK_UNINTERRUPTIBLE);
+
+ return -EAGAIN;
+}
+
+/*
+ * nfs_page_group_lock_wait - wait for the lock to clear, but don't grab it
+ * @req - a request in the group
+ *
+ * This is a blocking call to wait for the group lock to be cleared.
+ */
+void
+nfs_page_group_lock_wait(struct nfs_page *req)
+{
+ struct nfs_page *head = req->wb_head;
+
+ WARN_ON_ONCE(head != head->wb_head);
+
+ wait_on_bit(&head->wb_flags, PG_HEADLOCK,
+ TASK_UNINTERRUPTIBLE);
}
/*
@@ -219,7 +242,7 @@ bool nfs_page_group_sync_on_bit(struct nfs_page *req, unsigned int bit)
{
bool ret;
- nfs_page_group_lock(req, true);
+ nfs_page_group_lock(req, false);
ret = nfs_page_group_sync_on_bit_locked(req, bit);
nfs_page_group_unlock(req);
@@ -701,10 +724,11 @@ int nfs_generic_pgio(struct nfs_pageio_descriptor *desc,
struct nfs_pgio_header *hdr)
{
struct nfs_page *req;
- struct page **pages;
+ struct page **pages,
+ *last_page;
struct list_head *head = &desc->pg_list;
struct nfs_commit_info cinfo;
- unsigned int pagecount;
+ unsigned int pagecount, pageused;
pagecount = nfs_page_array_len(desc->pg_base, desc->pg_count);
if (!nfs_pgarray_set(&hdr->page_array, pagecount))
@@ -712,12 +736,23 @@ int nfs_generic_pgio(struct nfs_pageio_descriptor *desc,
nfs_init_cinfo(&cinfo, desc->pg_inode, desc->pg_dreq);
pages = hdr->page_array.pagevec;
+ last_page = NULL;
+ pageused = 0;
while (!list_empty(head)) {
req = nfs_list_entry(head->next);
nfs_list_remove_request(req);
nfs_list_add_request(req, &hdr->pages);
- *pages++ = req->wb_page;
+
+ if (WARN_ON_ONCE(pageused >= pagecount))
+ return nfs_pgio_error(desc, hdr);
+
+ if (!last_page || last_page != req->wb_page) {
+ *pages++ = last_page = req->wb_page;
+ pageused++;
+ }
}
+ if (WARN_ON_ONCE(pageused != pagecount))
+ return nfs_pgio_error(desc, hdr);
if ((desc->pg_ioflags & FLUSH_COND_STABLE) &&
(desc->pg_moreio || nfs_reqs_to_commit(&cinfo)))
@@ -788,6 +823,14 @@ static bool nfs_can_coalesce_requests(struct nfs_page *prev,
return false;
if (req_offset(req) != req_offset(prev) + prev->wb_bytes)
return false;
+ if (req->wb_page == prev->wb_page) {
+ if (req->wb_pgbase != prev->wb_pgbase + prev->wb_bytes)
+ return false;
+ } else {
+ if (req->wb_pgbase != 0 ||
+ prev->wb_pgbase + prev->wb_bytes != PAGE_CACHE_SIZE)
+ return false;
+ }
}
size = pgio->pg_ops->pg_test(pgio, prev, req);
WARN_ON_ONCE(size > req->wb_bytes);
@@ -858,13 +901,8 @@ static int __nfs_pageio_add_request(struct nfs_pageio_descriptor *desc,
struct nfs_page *subreq;
unsigned int bytes_left = 0;
unsigned int offset, pgbase;
- int ret;
- ret = nfs_page_group_lock(req, false);
- if (ret < 0) {
- desc->pg_error = ret;
- return 0;
- }
+ nfs_page_group_lock(req, false);
subreq = req;
bytes_left = subreq->wb_bytes;
@@ -886,11 +924,7 @@ static int __nfs_pageio_add_request(struct nfs_pageio_descriptor *desc,
if (desc->pg_recoalesce)
return 0;
/* retry add_request for this subreq */
- ret = nfs_page_group_lock(req, false);
- if (ret < 0) {
- desc->pg_error = ret;
- return 0;
- }
+ nfs_page_group_lock(req, false);
continue;
}
diff --git a/fs/nfs/write.c b/fs/nfs/write.c
index e3b5cf28bdc5..175d5d073ccf 100644
--- a/fs/nfs/write.c
+++ b/fs/nfs/write.c
@@ -241,7 +241,7 @@ static bool nfs_page_group_covers_page(struct nfs_page *req)
unsigned int pos = 0;
unsigned int len = nfs_page_length(req->wb_page);
- nfs_page_group_lock(req, true);
+ nfs_page_group_lock(req, false);
do {
tmp = nfs_page_group_search_locked(req->wb_head, pos);
@@ -478,10 +478,23 @@ try_again:
return NULL;
}
- /* lock each request in the page group */
- ret = nfs_page_group_lock(head, false);
- if (ret < 0)
+ /* holding inode lock, so always make a non-blocking call to try the
+ * page group lock */
+ ret = nfs_page_group_lock(head, true);
+ if (ret < 0) {
+ spin_unlock(&inode->i_lock);
+
+ if (!nonblock && ret == -EAGAIN) {
+ nfs_page_group_lock_wait(head);
+ nfs_release_request(head);
+ goto try_again;
+ }
+
+ nfs_release_request(head);
return ERR_PTR(ret);
+ }
+
+ /* lock each request in the page group */
subreq = head;
do {
/*
diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c
index f9821ce6658a..e94457c33ad6 100644
--- a/fs/nfsd/nfs4xdr.c
+++ b/fs/nfsd/nfs4xdr.c
@@ -2657,6 +2657,7 @@ nfsd4_encode_dirent(void *ccdv, const char *name, int namlen,
struct xdr_stream *xdr = cd->xdr;
int start_offset = xdr->buf->len;
int cookie_offset;
+ u32 name_and_cookie;
int entry_bytes;
__be32 nfserr = nfserr_toosmall;
__be64 wire_offset;
@@ -2718,7 +2719,14 @@ nfsd4_encode_dirent(void *ccdv, const char *name, int namlen,
cd->rd_maxcount -= entry_bytes;
if (!cd->rd_dircount)
goto fail;
- cd->rd_dircount--;
+ /*
+ * RFC 3530 14.2.24 describes rd_dircount as only a "hint", so
+ * let's always let through the first entry, at least:
+ */
+ name_and_cookie = 4 * XDR_QUADLEN(namlen) + 8;
+ if (name_and_cookie > cd->rd_dircount && cd->cookie_offset)
+ goto fail;
+ cd->rd_dircount -= min(cd->rd_dircount, name_and_cookie);
cd->cookie_offset = cookie_offset;
skip_entry:
cd->common.err = nfs_ok;
@@ -3321,6 +3329,10 @@ nfsd4_encode_readdir(struct nfsd4_compoundres *resp, __be32 nfserr, struct nfsd4
}
maxcount = min_t(int, maxcount-16, bytes_left);
+ /* RFC 3530 14.2.24 allows us to ignore dircount when it's 0: */
+ if (!readdir->rd_dircount)
+ readdir->rd_dircount = INT_MAX;
+
readdir->xdr = xdr;
readdir->rd_maxcount = maxcount;
readdir->common.err = 0;
diff --git a/fs/notify/fdinfo.c b/fs/notify/fdinfo.c
index 238a5930cb3c..9d7e2b9659cb 100644
--- a/fs/notify/fdinfo.c
+++ b/fs/notify/fdinfo.c
@@ -42,7 +42,7 @@ static int show_mark_fhandle(struct seq_file *m, struct inode *inode)
{
struct {
struct file_handle handle;
- u8 pad[64];
+ u8 pad[MAX_HANDLE_SZ];
} f;
int size, ret, i;
@@ -50,7 +50,7 @@ static int show_mark_fhandle(struct seq_file *m, struct inode *inode)
size = f.handle.handle_bytes >> 2;
ret = exportfs_encode_inode_fh(inode, (struct fid *)f.handle.f_handle, &size, 0);
- if ((ret == 255) || (ret == -ENOSPC)) {
+ if ((ret == FILEID_INVALID) || (ret < 0)) {
WARN_ONCE(1, "Can't encode file handler for inotify: %d\n", ret);
return 0;
}
diff --git a/fs/ocfs2/cluster/quorum.c b/fs/ocfs2/cluster/quorum.c
index 1ec141e758d7..62e8ec619b4c 100644
--- a/fs/ocfs2/cluster/quorum.c
+++ b/fs/ocfs2/cluster/quorum.c
@@ -160,9 +160,18 @@ static void o2quo_make_decision(struct work_struct *work)
}
out:
- spin_unlock(&qs->qs_lock);
- if (fence)
+ if (fence) {
+ spin_unlock(&qs->qs_lock);
o2quo_fence_self();
+ } else {
+ mlog(ML_NOTICE, "not fencing this node, heartbeating: %d, "
+ "connected: %d, lowest: %d (%sreachable)\n",
+ qs->qs_heartbeating, qs->qs_connected, lowest_hb,
+ lowest_reachable ? "" : "un");
+ spin_unlock(&qs->qs_lock);
+
+ }
+
}
static void o2quo_set_hold(struct o2quo_state *qs, u8 node)
diff --git a/fs/ocfs2/cluster/tcp.c b/fs/ocfs2/cluster/tcp.c
index 681691bc233a..ea34952f9496 100644
--- a/fs/ocfs2/cluster/tcp.c
+++ b/fs/ocfs2/cluster/tcp.c
@@ -1480,6 +1480,14 @@ static int o2net_set_nodelay(struct socket *sock)
return ret;
}
+static int o2net_set_usertimeout(struct socket *sock)
+{
+ int user_timeout = O2NET_TCP_USER_TIMEOUT;
+
+ return kernel_setsockopt(sock, SOL_TCP, TCP_USER_TIMEOUT,
+ (char *)&user_timeout, sizeof(user_timeout));
+}
+
static void o2net_initialize_handshake(void)
{
o2net_hand->o2hb_heartbeat_timeout_ms = cpu_to_be32(
@@ -1536,16 +1544,20 @@ static void o2net_idle_timer(unsigned long data)
#endif
printk(KERN_NOTICE "o2net: Connection to " SC_NODEF_FMT " has been "
- "idle for %lu.%lu secs, shutting it down.\n", SC_NODEF_ARGS(sc),
- msecs / 1000, msecs % 1000);
+ "idle for %lu.%lu secs.\n",
+ SC_NODEF_ARGS(sc), msecs / 1000, msecs % 1000);
- /*
- * Initialize the nn_timeout so that the next connection attempt
- * will continue in o2net_start_connect.
+ /* idle timerout happen, don't shutdown the connection, but
+ * make fence decision. Maybe the connection can recover before
+ * the decision is made.
*/
atomic_set(&nn->nn_timeout, 1);
+ o2quo_conn_err(o2net_num_from_nn(nn));
+ queue_delayed_work(o2net_wq, &nn->nn_still_up,
+ msecs_to_jiffies(O2NET_QUORUM_DELAY_MS));
+
+ o2net_sc_reset_idle_timer(sc);
- o2net_sc_queue_work(sc, &sc->sc_shutdown_work);
}
static void o2net_sc_reset_idle_timer(struct o2net_sock_container *sc)
@@ -1560,6 +1572,15 @@ static void o2net_sc_reset_idle_timer(struct o2net_sock_container *sc)
static void o2net_sc_postpone_idle(struct o2net_sock_container *sc)
{
+ struct o2net_node *nn = o2net_nn_from_num(sc->sc_node->nd_num);
+
+ /* clear fence decision since the connection recover from timeout*/
+ if (atomic_read(&nn->nn_timeout)) {
+ o2quo_conn_up(o2net_num_from_nn(nn));
+ cancel_delayed_work(&nn->nn_still_up);
+ atomic_set(&nn->nn_timeout, 0);
+ }
+
/* Only push out an existing timer */
if (timer_pending(&sc->sc_idle_timeout))
o2net_sc_reset_idle_timer(sc);
@@ -1650,6 +1671,12 @@ static void o2net_start_connect(struct work_struct *work)
goto out;
}
+ ret = o2net_set_usertimeout(sock);
+ if (ret) {
+ mlog(ML_ERROR, "set TCP_USER_TIMEOUT failed with %d\n", ret);
+ goto out;
+ }
+
o2net_register_callbacks(sc->sc_sock->sk, sc);
spin_lock(&nn->nn_lock);
@@ -1831,6 +1858,12 @@ static int o2net_accept_one(struct socket *sock, int *more)
goto out;
}
+ ret = o2net_set_usertimeout(new_sock);
+ if (ret) {
+ mlog(ML_ERROR, "set TCP_USER_TIMEOUT failed with %d\n", ret);
+ goto out;
+ }
+
slen = sizeof(sin);
ret = new_sock->ops->getname(new_sock, (struct sockaddr *) &sin,
&slen, 1);
diff --git a/fs/ocfs2/cluster/tcp.h b/fs/ocfs2/cluster/tcp.h
index 5bada2a69b50..c571e849fda4 100644
--- a/fs/ocfs2/cluster/tcp.h
+++ b/fs/ocfs2/cluster/tcp.h
@@ -63,6 +63,7 @@ typedef void (o2net_post_msg_handler_func)(int status, void *data,
#define O2NET_KEEPALIVE_DELAY_MS_DEFAULT 2000
#define O2NET_IDLE_TIMEOUT_MS_DEFAULT 30000
+#define O2NET_TCP_USER_TIMEOUT 0x7fffffff
/* TODO: figure this out.... */
static inline int o2net_link_down(int err, struct socket *sock)
diff --git a/fs/ocfs2/ioctl.c b/fs/ocfs2/ioctl.c
index 6f66b3751ace..53e6c40ed4c6 100644
--- a/fs/ocfs2/ioctl.c
+++ b/fs/ocfs2/ioctl.c
@@ -35,9 +35,8 @@
copy_to_user((typeof(a) __user *)b, &(a), sizeof(a))
/*
- * This call is void because we are already reporting an error that may
- * be -EFAULT. The error will be returned from the ioctl(2) call. It's
- * just a best-effort to tell userspace that this request caused the error.
+ * This is just a best-effort to tell userspace that this request
+ * caused the error.
*/
static inline void o2info_set_request_error(struct ocfs2_info_request *kreq,
struct ocfs2_info_request __user *req)
@@ -146,136 +145,105 @@ bail:
static int ocfs2_info_handle_blocksize(struct inode *inode,
struct ocfs2_info_request __user *req)
{
- int status = -EFAULT;
struct ocfs2_info_blocksize oib;
if (o2info_from_user(oib, req))
- goto bail;
+ return -EFAULT;
oib.ib_blocksize = inode->i_sb->s_blocksize;
o2info_set_request_filled(&oib.ib_req);
if (o2info_to_user(oib, req))
- goto bail;
-
- status = 0;
-bail:
- if (status)
- o2info_set_request_error(&oib.ib_req, req);
+ return -EFAULT;
- return status;
+ return 0;
}
static int ocfs2_info_handle_clustersize(struct inode *inode,
struct ocfs2_info_request __user *req)
{
- int status = -EFAULT;
struct ocfs2_info_clustersize oic;
struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
if (o2info_from_user(oic, req))
- goto bail;
+ return -EFAULT;
oic.ic_clustersize = osb->s_clustersize;
o2info_set_request_filled(&oic.ic_req);
if (o2info_to_user(oic, req))
- goto bail;
-
- status = 0;
-bail:
- if (status)
- o2info_set_request_error(&oic.ic_req, req);
+ return -EFAULT;
- return status;
+ return 0;
}
static int ocfs2_info_handle_maxslots(struct inode *inode,
struct ocfs2_info_request __user *req)
{
- int status = -EFAULT;
struct ocfs2_info_maxslots oim;
struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
if (o2info_from_user(oim, req))
- goto bail;
+ return -EFAULT;
oim.im_max_slots = osb->max_slots;
o2info_set_request_filled(&oim.im_req);
if (o2info_to_user(oim, req))
- goto bail;
+ return -EFAULT;
- status = 0;
-bail:
- if (status)
- o2info_set_request_error(&oim.im_req, req);
-
- return status;
+ return 0;
}
static int ocfs2_info_handle_label(struct inode *inode,
struct ocfs2_info_request __user *req)
{
- int status = -EFAULT;
struct ocfs2_info_label oil;
struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
if (o2info_from_user(oil, req))
- goto bail;
+ return -EFAULT;
memcpy(oil.il_label, osb->vol_label, OCFS2_MAX_VOL_LABEL_LEN);
o2info_set_request_filled(&oil.il_req);
if (o2info_to_user(oil, req))
- goto bail;
+ return -EFAULT;
- status = 0;
-bail:
- if (status)
- o2info_set_request_error(&oil.il_req, req);
-
- return status;
+ return 0;
}
static int ocfs2_info_handle_uuid(struct inode *inode,
struct ocfs2_info_request __user *req)
{
- int status = -EFAULT;
struct ocfs2_info_uuid oiu;
struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
if (o2info_from_user(oiu, req))
- goto bail;
+ return -EFAULT;
memcpy(oiu.iu_uuid_str, osb->uuid_str, OCFS2_TEXT_UUID_LEN + 1);
o2info_set_request_filled(&oiu.iu_req);
if (o2info_to_user(oiu, req))
- goto bail;
-
- status = 0;
-bail:
- if (status)
- o2info_set_request_error(&oiu.iu_req, req);
+ return -EFAULT;
- return status;
+ return 0;
}
static int ocfs2_info_handle_fs_features(struct inode *inode,
struct ocfs2_info_request __user *req)
{
- int status = -EFAULT;
struct ocfs2_info_fs_features oif;
struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
if (o2info_from_user(oif, req))
- goto bail;
+ return -EFAULT;
oif.if_compat_features = osb->s_feature_compat;
oif.if_incompat_features = osb->s_feature_incompat;
@@ -284,39 +252,28 @@ static int ocfs2_info_handle_fs_features(struct inode *inode,
o2info_set_request_filled(&oif.if_req);
if (o2info_to_user(oif, req))
- goto bail;
+ return -EFAULT;
- status = 0;
-bail:
- if (status)
- o2info_set_request_error(&oif.if_req, req);
-
- return status;
+ return 0;
}
static int ocfs2_info_handle_journal_size(struct inode *inode,
struct ocfs2_info_request __user *req)
{
- int status = -EFAULT;
struct ocfs2_info_journal_size oij;
struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
if (o2info_from_user(oij, req))
- goto bail;
+ return -EFAULT;
oij.ij_journal_size = i_size_read(osb->journal->j_inode);
o2info_set_request_filled(&oij.ij_req);
if (o2info_to_user(oij, req))
- goto bail;
+ return -EFAULT;
- status = 0;
-bail:
- if (status)
- o2info_set_request_error(&oij.ij_req, req);
-
- return status;
+ return 0;
}
static int ocfs2_info_scan_inode_alloc(struct ocfs2_super *osb,
@@ -373,7 +330,7 @@ static int ocfs2_info_handle_freeinode(struct inode *inode,
u32 i;
u64 blkno = -1;
char namebuf[40];
- int status = -EFAULT, type = INODE_ALLOC_SYSTEM_INODE;
+ int status, type = INODE_ALLOC_SYSTEM_INODE;
struct ocfs2_info_freeinode *oifi = NULL;
struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
struct inode *inode_alloc = NULL;
@@ -385,8 +342,10 @@ static int ocfs2_info_handle_freeinode(struct inode *inode,
goto out_err;
}
- if (o2info_from_user(*oifi, req))
- goto bail;
+ if (o2info_from_user(*oifi, req)) {
+ status = -EFAULT;
+ goto out_free;
+ }
oifi->ifi_slotnum = osb->max_slots;
@@ -424,14 +383,16 @@ static int ocfs2_info_handle_freeinode(struct inode *inode,
o2info_set_request_filled(&oifi->ifi_req);
- if (o2info_to_user(*oifi, req))
- goto bail;
+ if (o2info_to_user(*oifi, req)) {
+ status = -EFAULT;
+ goto out_free;
+ }
status = 0;
bail:
if (status)
o2info_set_request_error(&oifi->ifi_req, req);
-
+out_free:
kfree(oifi);
out_err:
return status;
@@ -658,7 +619,7 @@ static int ocfs2_info_handle_freefrag(struct inode *inode,
{
u64 blkno = -1;
char namebuf[40];
- int status = -EFAULT, type = GLOBAL_BITMAP_SYSTEM_INODE;
+ int status, type = GLOBAL_BITMAP_SYSTEM_INODE;
struct ocfs2_info_freefrag *oiff;
struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
@@ -671,8 +632,10 @@ static int ocfs2_info_handle_freefrag(struct inode *inode,
goto out_err;
}
- if (o2info_from_user(*oiff, req))
- goto bail;
+ if (o2info_from_user(*oiff, req)) {
+ status = -EFAULT;
+ goto out_free;
+ }
/*
* chunksize from userspace should be power of 2.
*/
@@ -711,14 +674,14 @@ static int ocfs2_info_handle_freefrag(struct inode *inode,
if (o2info_to_user(*oiff, req)) {
status = -EFAULT;
- goto bail;
+ goto out_free;
}
status = 0;
bail:
if (status)
o2info_set_request_error(&oiff->iff_req, req);
-
+out_free:
kfree(oiff);
out_err:
return status;
@@ -727,23 +690,17 @@ out_err:
static int ocfs2_info_handle_unknown(struct inode *inode,
struct ocfs2_info_request __user *req)
{
- int status = -EFAULT;
struct ocfs2_info_request oir;
if (o2info_from_user(oir, req))
- goto bail;
+ return -EFAULT;
o2info_clear_request_filled(&oir);
if (o2info_to_user(oir, req))
- goto bail;
+ return -EFAULT;
- status = 0;
-bail:
- if (status)
- o2info_set_request_error(&oir, req);
-
- return status;
+ return 0;
}
/*
diff --git a/fs/pnode.c b/fs/pnode.c
index 302bf22c4a30..aae331a5d03b 100644
--- a/fs/pnode.c
+++ b/fs/pnode.c
@@ -381,6 +381,7 @@ static void __propagate_umount(struct mount *mnt)
* other children
*/
if (child && list_empty(&child->mnt_mounts)) {
+ list_del_init(&child->mnt_child);
hlist_del_init_rcu(&child->mnt_hash);
hlist_add_before_rcu(&child->mnt_hash, &mnt->mnt_hash);
}
diff --git a/fs/sync.c b/fs/sync.c
index b28d1dd10e8b..bdc729d80e5e 100644
--- a/fs/sync.c
+++ b/fs/sync.c
@@ -65,7 +65,7 @@ int sync_filesystem(struct super_block *sb)
return ret;
return __sync_filesystem(sb, 1);
}
-EXPORT_SYMBOL_GPL(sync_filesystem);
+EXPORT_SYMBOL(sync_filesystem);
static void sync_inodes_one_sb(struct super_block *sb, void *arg)
{
diff --git a/fs/udf/ialloc.c b/fs/udf/ialloc.c
index 6eaf5edf1ea1..e77db621ec89 100644
--- a/fs/udf/ialloc.c
+++ b/fs/udf/ialloc.c
@@ -45,7 +45,7 @@ void udf_free_inode(struct inode *inode)
udf_free_blocks(sb, NULL, &UDF_I(inode)->i_location, 0, 1);
}
-struct inode *udf_new_inode(struct inode *dir, umode_t mode, int *err)
+struct inode *udf_new_inode(struct inode *dir, umode_t mode)
{
struct super_block *sb = dir->i_sb;
struct udf_sb_info *sbi = UDF_SB(sb);
@@ -55,14 +55,12 @@ struct inode *udf_new_inode(struct inode *dir, umode_t mode, int *err)
struct udf_inode_info *iinfo;
struct udf_inode_info *dinfo = UDF_I(dir);
struct logicalVolIntegrityDescImpUse *lvidiu;
+ int err;
inode = new_inode(sb);
- if (!inode) {
- *err = -ENOMEM;
- return NULL;
- }
- *err = -ENOSPC;
+ if (!inode)
+ return ERR_PTR(-ENOMEM);
iinfo = UDF_I(inode);
if (UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_USE_EXTENDED_FE)) {
@@ -80,21 +78,22 @@ struct inode *udf_new_inode(struct inode *dir, umode_t mode, int *err)
}
if (!iinfo->i_ext.i_data) {
iput(inode);
- *err = -ENOMEM;
- return NULL;
+ return ERR_PTR(-ENOMEM);
}
+ err = -ENOSPC;
block = udf_new_block(dir->i_sb, NULL,
dinfo->i_location.partitionReferenceNum,
- start, err);
- if (*err) {
+ start, &err);
+ if (err) {
iput(inode);
- return NULL;
+ return ERR_PTR(err);
}
lvidiu = udf_sb_lvidiu(sb);
if (lvidiu) {
iinfo->i_unique = lvid_get_unique_id(sb);
+ inode->i_generation = iinfo->i_unique;
mutex_lock(&sbi->s_alloc_mutex);
if (S_ISDIR(mode))
le32_add_cpu(&lvidiu->numDirs, 1);
@@ -123,9 +122,12 @@ struct inode *udf_new_inode(struct inode *dir, umode_t mode, int *err)
iinfo->i_alloc_type = ICBTAG_FLAG_AD_LONG;
inode->i_mtime = inode->i_atime = inode->i_ctime =
iinfo->i_crtime = current_fs_time(inode->i_sb);
- insert_inode_hash(inode);
+ if (unlikely(insert_inode_locked(inode) < 0)) {
+ make_bad_inode(inode);
+ iput(inode);
+ return ERR_PTR(-EIO);
+ }
mark_inode_dirty(inode);
- *err = 0;
return inode;
}
diff --git a/fs/udf/inode.c b/fs/udf/inode.c
index 236cd48184c2..08598843288f 100644
--- a/fs/udf/inode.c
+++ b/fs/udf/inode.c
@@ -51,7 +51,6 @@ MODULE_LICENSE("GPL");
static umode_t udf_convert_permissions(struct fileEntry *);
static int udf_update_inode(struct inode *, int);
-static void udf_fill_inode(struct inode *, struct buffer_head *);
static int udf_sync_inode(struct inode *inode);
static int udf_alloc_i_data(struct inode *inode, size_t size);
static sector_t inode_getblk(struct inode *, sector_t, int *, int *);
@@ -1271,12 +1270,33 @@ update_time:
return 0;
}
-static void __udf_read_inode(struct inode *inode)
+/*
+ * Maximum length of linked list formed by ICB hierarchy. The chosen number is
+ * arbitrary - just that we hopefully don't limit any real use of rewritten
+ * inode on write-once media but avoid looping for too long on corrupted media.
+ */
+#define UDF_MAX_ICB_NESTING 1024
+
+static int udf_read_inode(struct inode *inode)
{
struct buffer_head *bh = NULL;
struct fileEntry *fe;
+ struct extendedFileEntry *efe;
uint16_t ident;
struct udf_inode_info *iinfo = UDF_I(inode);
+ struct udf_sb_info *sbi = UDF_SB(inode->i_sb);
+ struct kernel_lb_addr *iloc = &iinfo->i_location;
+ unsigned int link_count;
+ unsigned int indirections = 0;
+ int ret = -EIO;
+
+reread:
+ if (iloc->logicalBlockNum >=
+ sbi->s_partmaps[iloc->partitionReferenceNum].s_partition_len) {
+ udf_debug("block=%d, partition=%d out of range\n",
+ iloc->logicalBlockNum, iloc->partitionReferenceNum);
+ return -EIO;
+ }
/*
* Set defaults, but the inode is still incomplete!
@@ -1290,78 +1310,54 @@ static void __udf_read_inode(struct inode *inode)
* i_nlink = 1
* i_op = NULL;
*/
- bh = udf_read_ptagged(inode->i_sb, &iinfo->i_location, 0, &ident);
+ bh = udf_read_ptagged(inode->i_sb, iloc, 0, &ident);
if (!bh) {
udf_err(inode->i_sb, "(ino %ld) failed !bh\n", inode->i_ino);
- make_bad_inode(inode);
- return;
+ return -EIO;
}
if (ident != TAG_IDENT_FE && ident != TAG_IDENT_EFE &&
ident != TAG_IDENT_USE) {
udf_err(inode->i_sb, "(ino %ld) failed ident=%d\n",
inode->i_ino, ident);
- brelse(bh);
- make_bad_inode(inode);
- return;
+ goto out;
}
fe = (struct fileEntry *)bh->b_data;
+ efe = (struct extendedFileEntry *)bh->b_data;
if (fe->icbTag.strategyType == cpu_to_le16(4096)) {
struct buffer_head *ibh;
- ibh = udf_read_ptagged(inode->i_sb, &iinfo->i_location, 1,
- &ident);
+ ibh = udf_read_ptagged(inode->i_sb, iloc, 1, &ident);
if (ident == TAG_IDENT_IE && ibh) {
- struct buffer_head *nbh = NULL;
struct kernel_lb_addr loc;
struct indirectEntry *ie;
ie = (struct indirectEntry *)ibh->b_data;
loc = lelb_to_cpu(ie->indirectICB.extLocation);
- if (ie->indirectICB.extLength &&
- (nbh = udf_read_ptagged(inode->i_sb, &loc, 0,
- &ident))) {
- if (ident == TAG_IDENT_FE ||
- ident == TAG_IDENT_EFE) {
- memcpy(&iinfo->i_location,
- &loc,
- sizeof(struct kernel_lb_addr));
- brelse(bh);
- brelse(ibh);
- brelse(nbh);
- __udf_read_inode(inode);
- return;
+ if (ie->indirectICB.extLength) {
+ brelse(ibh);
+ memcpy(&iinfo->i_location, &loc,
+ sizeof(struct kernel_lb_addr));
+ if (++indirections > UDF_MAX_ICB_NESTING) {
+ udf_err(inode->i_sb,
+ "too many ICBs in ICB hierarchy"
+ " (max %d supported)\n",
+ UDF_MAX_ICB_NESTING);
+ goto out;
}
- brelse(nbh);
+ brelse(bh);
+ goto reread;
}
}
brelse(ibh);
} else if (fe->icbTag.strategyType != cpu_to_le16(4)) {
udf_err(inode->i_sb, "unsupported strategy type: %d\n",
le16_to_cpu(fe->icbTag.strategyType));
- brelse(bh);
- make_bad_inode(inode);
- return;
+ goto out;
}
- udf_fill_inode(inode, bh);
-
- brelse(bh);
-}
-
-static void udf_fill_inode(struct inode *inode, struct buffer_head *bh)
-{
- struct fileEntry *fe;
- struct extendedFileEntry *efe;
- struct udf_sb_info *sbi = UDF_SB(inode->i_sb);
- struct udf_inode_info *iinfo = UDF_I(inode);
- unsigned int link_count;
-
- fe = (struct fileEntry *)bh->b_data;
- efe = (struct extendedFileEntry *)bh->b_data;
-
if (fe->icbTag.strategyType == cpu_to_le16(4))
iinfo->i_strat4096 = 0;
else /* if (fe->icbTag.strategyType == cpu_to_le16(4096)) */
@@ -1378,11 +1374,10 @@ static void udf_fill_inode(struct inode *inode, struct buffer_head *bh)
if (fe->descTag.tagIdent == cpu_to_le16(TAG_IDENT_EFE)) {
iinfo->i_efe = 1;
iinfo->i_use = 0;
- if (udf_alloc_i_data(inode, inode->i_sb->s_blocksize -
- sizeof(struct extendedFileEntry))) {
- make_bad_inode(inode);
- return;
- }
+ ret = udf_alloc_i_data(inode, inode->i_sb->s_blocksize -
+ sizeof(struct extendedFileEntry));
+ if (ret)
+ goto out;
memcpy(iinfo->i_ext.i_data,
bh->b_data + sizeof(struct extendedFileEntry),
inode->i_sb->s_blocksize -
@@ -1390,11 +1385,10 @@ static void udf_fill_inode(struct inode *inode, struct buffer_head *bh)
} else if (fe->descTag.tagIdent == cpu_to_le16(TAG_IDENT_FE)) {
iinfo->i_efe = 0;
iinfo->i_use = 0;
- if (udf_alloc_i_data(inode, inode->i_sb->s_blocksize -
- sizeof(struct fileEntry))) {
- make_bad_inode(inode);
- return;
- }
+ ret = udf_alloc_i_data(inode, inode->i_sb->s_blocksize -
+ sizeof(struct fileEntry));
+ if (ret)
+ goto out;
memcpy(iinfo->i_ext.i_data,
bh->b_data + sizeof(struct fileEntry),
inode->i_sb->s_blocksize - sizeof(struct fileEntry));
@@ -1404,18 +1398,18 @@ static void udf_fill_inode(struct inode *inode, struct buffer_head *bh)
iinfo->i_lenAlloc = le32_to_cpu(
((struct unallocSpaceEntry *)bh->b_data)->
lengthAllocDescs);
- if (udf_alloc_i_data(inode, inode->i_sb->s_blocksize -
- sizeof(struct unallocSpaceEntry))) {
- make_bad_inode(inode);
- return;
- }
+ ret = udf_alloc_i_data(inode, inode->i_sb->s_blocksize -
+ sizeof(struct unallocSpaceEntry));
+ if (ret)
+ goto out;
memcpy(iinfo->i_ext.i_data,
bh->b_data + sizeof(struct unallocSpaceEntry),
inode->i_sb->s_blocksize -
sizeof(struct unallocSpaceEntry));
- return;
+ return 0;
}
+ ret = -EIO;
read_lock(&sbi->s_cred_lock);
i_uid_write(inode, le32_to_cpu(fe->uid));
if (!uid_valid(inode->i_uid) ||
@@ -1441,8 +1435,10 @@ static void udf_fill_inode(struct inode *inode, struct buffer_head *bh)
read_unlock(&sbi->s_cred_lock);
link_count = le16_to_cpu(fe->fileLinkCount);
- if (!link_count)
- link_count = 1;
+ if (!link_count) {
+ ret = -ESTALE;
+ goto out;
+ }
set_nlink(inode, link_count);
inode->i_size = le64_to_cpu(fe->informationLength);
@@ -1488,6 +1484,7 @@ static void udf_fill_inode(struct inode *inode, struct buffer_head *bh)
iinfo->i_lenAlloc = le32_to_cpu(efe->lengthAllocDescs);
iinfo->i_checkpoint = le32_to_cpu(efe->checkpoint);
}
+ inode->i_generation = iinfo->i_unique;
switch (fe->icbTag.fileType) {
case ICBTAG_FILE_TYPE_DIRECTORY:
@@ -1537,8 +1534,7 @@ static void udf_fill_inode(struct inode *inode, struct buffer_head *bh)
default:
udf_err(inode->i_sb, "(ino %ld) failed unknown file type=%d\n",
inode->i_ino, fe->icbTag.fileType);
- make_bad_inode(inode);
- return;
+ goto out;
}
if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode)) {
struct deviceSpec *dsea =
@@ -1549,8 +1545,12 @@ static void udf_fill_inode(struct inode *inode, struct buffer_head *bh)
le32_to_cpu(dsea->minorDeviceIdent)));
/* Developer ID ??? */
} else
- make_bad_inode(inode);
+ goto out;
}
+ ret = 0;
+out:
+ brelse(bh);
+ return ret;
}
static int udf_alloc_i_data(struct inode *inode, size_t size)
@@ -1664,7 +1664,7 @@ static int udf_update_inode(struct inode *inode, int do_sync)
FE_PERM_U_DELETE | FE_PERM_U_CHATTR));
fe->permissions = cpu_to_le32(udfperms);
- if (S_ISDIR(inode->i_mode))
+ if (S_ISDIR(inode->i_mode) && inode->i_nlink > 0)
fe->fileLinkCount = cpu_to_le16(inode->i_nlink - 1);
else
fe->fileLinkCount = cpu_to_le16(inode->i_nlink);
@@ -1830,32 +1830,23 @@ struct inode *udf_iget(struct super_block *sb, struct kernel_lb_addr *ino)
{
unsigned long block = udf_get_lb_pblock(sb, ino, 0);
struct inode *inode = iget_locked(sb, block);
+ int err;
if (!inode)
- return NULL;
-
- if (inode->i_state & I_NEW) {
- memcpy(&UDF_I(inode)->i_location, ino, sizeof(struct kernel_lb_addr));
- __udf_read_inode(inode);
- unlock_new_inode(inode);
- }
+ return ERR_PTR(-ENOMEM);
- if (is_bad_inode(inode))
- goto out_iput;
+ if (!(inode->i_state & I_NEW))
+ return inode;
- if (ino->logicalBlockNum >= UDF_SB(sb)->
- s_partmaps[ino->partitionReferenceNum].s_partition_len) {
- udf_debug("block=%d, partition=%d out of range\n",
- ino->logicalBlockNum, ino->partitionReferenceNum);
- make_bad_inode(inode);
- goto out_iput;
+ memcpy(&UDF_I(inode)->i_location, ino, sizeof(struct kernel_lb_addr));
+ err = udf_read_inode(inode);
+ if (err < 0) {
+ iget_failed(inode);
+ return ERR_PTR(err);
}
+ unlock_new_inode(inode);
return inode;
-
- out_iput:
- iput(inode);
- return NULL;
}
int udf_add_aext(struct inode *inode, struct extent_position *epos,
diff --git a/fs/udf/namei.c b/fs/udf/namei.c
index 9737cba1357d..c12e260fd6c4 100644
--- a/fs/udf/namei.c
+++ b/fs/udf/namei.c
@@ -270,9 +270,8 @@ static struct dentry *udf_lookup(struct inode *dir, struct dentry *dentry,
NULL, 0),
};
inode = udf_iget(dir->i_sb, lb);
- if (!inode) {
- return ERR_PTR(-EACCES);
- }
+ if (IS_ERR(inode))
+ return inode;
} else
#endif /* UDF_RECOVERY */
@@ -285,9 +284,8 @@ static struct dentry *udf_lookup(struct inode *dir, struct dentry *dentry,
loc = lelb_to_cpu(cfi.icb.extLocation);
inode = udf_iget(dir->i_sb, &loc);
- if (!inode) {
- return ERR_PTR(-EACCES);
- }
+ if (IS_ERR(inode))
+ return ERR_CAST(inode);
}
return d_splice_alias(inode, dentry);
@@ -550,32 +548,18 @@ static int udf_delete_entry(struct inode *inode, struct fileIdentDesc *fi,
return udf_write_fi(inode, cfi, fi, fibh, NULL, NULL);
}
-static int udf_create(struct inode *dir, struct dentry *dentry, umode_t mode,
- bool excl)
+static int udf_add_nondir(struct dentry *dentry, struct inode *inode)
{
+ struct udf_inode_info *iinfo = UDF_I(inode);
+ struct inode *dir = dentry->d_parent->d_inode;
struct udf_fileident_bh fibh;
- struct inode *inode;
struct fileIdentDesc cfi, *fi;
int err;
- struct udf_inode_info *iinfo;
-
- inode = udf_new_inode(dir, mode, &err);
- if (!inode) {
- return err;
- }
-
- iinfo = UDF_I(inode);
- if (iinfo->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB)
- inode->i_data.a_ops = &udf_adinicb_aops;
- else
- inode->i_data.a_ops = &udf_aops;
- inode->i_op = &udf_file_inode_operations;
- inode->i_fop = &udf_file_operations;
- mark_inode_dirty(inode);
fi = udf_add_entry(dir, dentry, &fibh, &cfi, &err);
- if (!fi) {
+ if (unlikely(!fi)) {
inode_dec_link_count(inode);
+ unlock_new_inode(inode);
iput(inode);
return err;
}
@@ -589,23 +573,21 @@ static int udf_create(struct inode *dir, struct dentry *dentry, umode_t mode,
if (fibh.sbh != fibh.ebh)
brelse(fibh.ebh);
brelse(fibh.sbh);
+ unlock_new_inode(inode);
d_instantiate(dentry, inode);
return 0;
}
-static int udf_tmpfile(struct inode *dir, struct dentry *dentry, umode_t mode)
+static int udf_create(struct inode *dir, struct dentry *dentry, umode_t mode,
+ bool excl)
{
- struct inode *inode;
- struct udf_inode_info *iinfo;
- int err;
+ struct inode *inode = udf_new_inode(dir, mode);
- inode = udf_new_inode(dir, mode, &err);
- if (!inode)
- return err;
+ if (IS_ERR(inode))
+ return PTR_ERR(inode);
- iinfo = UDF_I(inode);
- if (iinfo->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB)
+ if (UDF_I(inode)->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB)
inode->i_data.a_ops = &udf_adinicb_aops;
else
inode->i_data.a_ops = &udf_aops;
@@ -613,7 +595,25 @@ static int udf_tmpfile(struct inode *dir, struct dentry *dentry, umode_t mode)
inode->i_fop = &udf_file_operations;
mark_inode_dirty(inode);
+ return udf_add_nondir(dentry, inode);
+}
+
+static int udf_tmpfile(struct inode *dir, struct dentry *dentry, umode_t mode)
+{
+ struct inode *inode = udf_new_inode(dir, mode);
+
+ if (IS_ERR(inode))
+ return PTR_ERR(inode);
+
+ if (UDF_I(inode)->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB)
+ inode->i_data.a_ops = &udf_adinicb_aops;
+ else
+ inode->i_data.a_ops = &udf_aops;
+ inode->i_op = &udf_file_inode_operations;
+ inode->i_fop = &udf_file_operations;
+ mark_inode_dirty(inode);
d_tmpfile(dentry, inode);
+ unlock_new_inode(inode);
return 0;
}
@@ -621,44 +621,16 @@ static int udf_mknod(struct inode *dir, struct dentry *dentry, umode_t mode,
dev_t rdev)
{
struct inode *inode;
- struct udf_fileident_bh fibh;
- struct fileIdentDesc cfi, *fi;
- int err;
- struct udf_inode_info *iinfo;
if (!old_valid_dev(rdev))
return -EINVAL;
- err = -EIO;
- inode = udf_new_inode(dir, mode, &err);
- if (!inode)
- goto out;
+ inode = udf_new_inode(dir, mode);
+ if (IS_ERR(inode))
+ return PTR_ERR(inode);
- iinfo = UDF_I(inode);
init_special_inode(inode, mode, rdev);
- fi = udf_add_entry(dir, dentry, &fibh, &cfi, &err);
- if (!fi) {
- inode_dec_link_count(inode);
- iput(inode);
- return err;
- }
- cfi.icb.extLength = cpu_to_le32(inode->i_sb->s_blocksize);
- cfi.icb.extLocation = cpu_to_lelb(iinfo->i_location);
- *(__le32 *)((struct allocDescImpUse *)cfi.icb.impUse)->impUse =
- cpu_to_le32(iinfo->i_unique & 0x00000000FFFFFFFFUL);
- udf_write_fi(dir, &cfi, fi, &fibh, NULL, NULL);
- if (UDF_I(dir)->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB)
- mark_inode_dirty(dir);
- mark_inode_dirty(inode);
-
- if (fibh.sbh != fibh.ebh)
- brelse(fibh.ebh);
- brelse(fibh.sbh);
- d_instantiate(dentry, inode);
- err = 0;
-
-out:
- return err;
+ return udf_add_nondir(dentry, inode);
}
static int udf_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
@@ -670,10 +642,9 @@ static int udf_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
struct udf_inode_info *dinfo = UDF_I(dir);
struct udf_inode_info *iinfo;
- err = -EIO;
- inode = udf_new_inode(dir, S_IFDIR | mode, &err);
- if (!inode)
- goto out;
+ inode = udf_new_inode(dir, S_IFDIR | mode);
+ if (IS_ERR(inode))
+ return PTR_ERR(inode);
iinfo = UDF_I(inode);
inode->i_op = &udf_dir_inode_operations;
@@ -681,6 +652,7 @@ static int udf_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
fi = udf_add_entry(inode, NULL, &fibh, &cfi, &err);
if (!fi) {
inode_dec_link_count(inode);
+ unlock_new_inode(inode);
iput(inode);
goto out;
}
@@ -699,6 +671,7 @@ static int udf_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
if (!fi) {
clear_nlink(inode);
mark_inode_dirty(inode);
+ unlock_new_inode(inode);
iput(inode);
goto out;
}
@@ -710,6 +683,7 @@ static int udf_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
udf_write_fi(dir, &cfi, fi, &fibh, NULL, NULL);
inc_nlink(dir);
mark_inode_dirty(dir);
+ unlock_new_inode(inode);
d_instantiate(dentry, inode);
if (fibh.sbh != fibh.ebh)
brelse(fibh.ebh);
@@ -876,14 +850,11 @@ out:
static int udf_symlink(struct inode *dir, struct dentry *dentry,
const char *symname)
{
- struct inode *inode;
+ struct inode *inode = udf_new_inode(dir, S_IFLNK | S_IRWXUGO);
struct pathComponent *pc;
const char *compstart;
- struct udf_fileident_bh fibh;
struct extent_position epos = {};
int eoffset, elen = 0;
- struct fileIdentDesc *fi;
- struct fileIdentDesc cfi;
uint8_t *ea;
int err;
int block;
@@ -892,9 +863,8 @@ static int udf_symlink(struct inode *dir, struct dentry *dentry,
struct udf_inode_info *iinfo;
struct super_block *sb = dir->i_sb;
- inode = udf_new_inode(dir, S_IFLNK | S_IRWXUGO, &err);
- if (!inode)
- goto out;
+ if (IS_ERR(inode))
+ return PTR_ERR(inode);
iinfo = UDF_I(inode);
down_write(&iinfo->i_data_sem);
@@ -1012,24 +982,7 @@ static int udf_symlink(struct inode *dir, struct dentry *dentry,
mark_inode_dirty(inode);
up_write(&iinfo->i_data_sem);
- fi = udf_add_entry(dir, dentry, &fibh, &cfi, &err);
- if (!fi)
- goto out_no_entry;
- cfi.icb.extLength = cpu_to_le32(sb->s_blocksize);
- cfi.icb.extLocation = cpu_to_lelb(iinfo->i_location);
- if (UDF_SB(inode->i_sb)->s_lvid_bh) {
- *(__le32 *)((struct allocDescImpUse *)cfi.icb.impUse)->impUse =
- cpu_to_le32(lvid_get_unique_id(sb));
- }
- udf_write_fi(dir, &cfi, fi, &fibh, NULL, NULL);
- if (UDF_I(dir)->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB)
- mark_inode_dirty(dir);
- if (fibh.sbh != fibh.ebh)
- brelse(fibh.ebh);
- brelse(fibh.sbh);
- d_instantiate(dentry, inode);
- err = 0;
-
+ err = udf_add_nondir(dentry, inode);
out:
kfree(name);
return err;
@@ -1037,6 +990,7 @@ out:
out_no_entry:
up_write(&iinfo->i_data_sem);
inode_dec_link_count(inode);
+ unlock_new_inode(inode);
iput(inode);
goto out;
}
@@ -1221,7 +1175,7 @@ static struct dentry *udf_get_parent(struct dentry *child)
struct udf_fileident_bh fibh;
if (!udf_find_entry(child->d_inode, &dotdot, &fibh, &cfi))
- goto out_unlock;
+ return ERR_PTR(-EACCES);
if (fibh.sbh != fibh.ebh)
brelse(fibh.ebh);
@@ -1229,12 +1183,10 @@ static struct dentry *udf_get_parent(struct dentry *child)
tloc = lelb_to_cpu(cfi.icb.extLocation);
inode = udf_iget(child->d_inode->i_sb, &tloc);
- if (!inode)
- goto out_unlock;
+ if (IS_ERR(inode))
+ return ERR_CAST(inode);
return d_obtain_alias(inode);
-out_unlock:
- return ERR_PTR(-EACCES);
}
@@ -1251,8 +1203,8 @@ static struct dentry *udf_nfs_get_inode(struct super_block *sb, u32 block,
loc.partitionReferenceNum = partref;
inode = udf_iget(sb, &loc);
- if (inode == NULL)
- return ERR_PTR(-ENOMEM);
+ if (IS_ERR(inode))
+ return ERR_CAST(inode);
if (generation && inode->i_generation != generation) {
iput(inode);
diff --git a/fs/udf/super.c b/fs/udf/super.c
index 813da94d447b..5401fc33f5cc 100644
--- a/fs/udf/super.c
+++ b/fs/udf/super.c
@@ -961,12 +961,14 @@ struct inode *udf_find_metadata_inode_efe(struct super_block *sb,
metadata_fe = udf_iget(sb, &addr);
- if (metadata_fe == NULL)
+ if (IS_ERR(metadata_fe)) {
udf_warn(sb, "metadata inode efe not found\n");
- else if (UDF_I(metadata_fe)->i_alloc_type != ICBTAG_FLAG_AD_SHORT) {
+ return metadata_fe;
+ }
+ if (UDF_I(metadata_fe)->i_alloc_type != ICBTAG_FLAG_AD_SHORT) {
udf_warn(sb, "metadata inode efe does not have short allocation descriptors!\n");
iput(metadata_fe);
- metadata_fe = NULL;
+ return ERR_PTR(-EIO);
}
return metadata_fe;
@@ -978,6 +980,7 @@ static int udf_load_metadata_files(struct super_block *sb, int partition)
struct udf_part_map *map;
struct udf_meta_data *mdata;
struct kernel_lb_addr addr;
+ struct inode *fe;
map = &sbi->s_partmaps[partition];
mdata = &map->s_type_specific.s_metadata;
@@ -986,22 +989,24 @@ static int udf_load_metadata_files(struct super_block *sb, int partition)
udf_debug("Metadata file location: block = %d part = %d\n",
mdata->s_meta_file_loc, map->s_partition_num);
- mdata->s_metadata_fe = udf_find_metadata_inode_efe(sb,
- mdata->s_meta_file_loc, map->s_partition_num);
-
- if (mdata->s_metadata_fe == NULL) {
+ fe = udf_find_metadata_inode_efe(sb, mdata->s_meta_file_loc,
+ map->s_partition_num);
+ if (IS_ERR(fe)) {
/* mirror file entry */
udf_debug("Mirror metadata file location: block = %d part = %d\n",
mdata->s_mirror_file_loc, map->s_partition_num);
- mdata->s_mirror_fe = udf_find_metadata_inode_efe(sb,
- mdata->s_mirror_file_loc, map->s_partition_num);
+ fe = udf_find_metadata_inode_efe(sb, mdata->s_mirror_file_loc,
+ map->s_partition_num);
- if (mdata->s_mirror_fe == NULL) {
+ if (IS_ERR(fe)) {
udf_err(sb, "Both metadata and mirror metadata inode efe can not found\n");
- return -EIO;
+ return PTR_ERR(fe);
}
- }
+ mdata->s_mirror_fe = fe;
+ } else
+ mdata->s_metadata_fe = fe;
+
/*
* bitmap file entry
@@ -1015,15 +1020,16 @@ static int udf_load_metadata_files(struct super_block *sb, int partition)
udf_debug("Bitmap file location: block = %d part = %d\n",
addr.logicalBlockNum, addr.partitionReferenceNum);
- mdata->s_bitmap_fe = udf_iget(sb, &addr);
- if (mdata->s_bitmap_fe == NULL) {
+ fe = udf_iget(sb, &addr);
+ if (IS_ERR(fe)) {
if (sb->s_flags & MS_RDONLY)
udf_warn(sb, "bitmap inode efe not found but it's ok since the disc is mounted read-only\n");
else {
udf_err(sb, "bitmap inode efe not found and attempted read-write mount\n");
- return -EIO;
+ return PTR_ERR(fe);
}
- }
+ } else
+ mdata->s_bitmap_fe = fe;
}
udf_debug("udf_load_metadata_files Ok\n");
@@ -1111,13 +1117,15 @@ static int udf_fill_partdesc_info(struct super_block *sb,
phd->unallocSpaceTable.extPosition),
.partitionReferenceNum = p_index,
};
+ struct inode *inode;
- map->s_uspace.s_table = udf_iget(sb, &loc);
- if (!map->s_uspace.s_table) {
+ inode = udf_iget(sb, &loc);
+ if (IS_ERR(inode)) {
udf_debug("cannot load unallocSpaceTable (part %d)\n",
p_index);
- return -EIO;
+ return PTR_ERR(inode);
}
+ map->s_uspace.s_table = inode;
map->s_partition_flags |= UDF_PART_FLAG_UNALLOC_TABLE;
udf_debug("unallocSpaceTable (part %d) @ %ld\n",
p_index, map->s_uspace.s_table->i_ino);
@@ -1144,14 +1152,15 @@ static int udf_fill_partdesc_info(struct super_block *sb,
phd->freedSpaceTable.extPosition),
.partitionReferenceNum = p_index,
};
+ struct inode *inode;
- map->s_fspace.s_table = udf_iget(sb, &loc);
- if (!map->s_fspace.s_table) {
+ inode = udf_iget(sb, &loc);
+ if (IS_ERR(inode)) {
udf_debug("cannot load freedSpaceTable (part %d)\n",
p_index);
- return -EIO;
+ return PTR_ERR(inode);
}
-
+ map->s_fspace.s_table = inode;
map->s_partition_flags |= UDF_PART_FLAG_FREED_TABLE;
udf_debug("freedSpaceTable (part %d) @ %ld\n",
p_index, map->s_fspace.s_table->i_ino);
@@ -1178,6 +1187,7 @@ static void udf_find_vat_block(struct super_block *sb, int p_index,
struct udf_part_map *map = &sbi->s_partmaps[p_index];
sector_t vat_block;
struct kernel_lb_addr ino;
+ struct inode *inode;
/*
* VAT file entry is in the last recorded block. Some broken disks have
@@ -1186,10 +1196,13 @@ static void udf_find_vat_block(struct super_block *sb, int p_index,
ino.partitionReferenceNum = type1_index;
for (vat_block = start_block;
vat_block >= map->s_partition_root &&
- vat_block >= start_block - 3 &&
- !sbi->s_vat_inode; vat_block--) {
+ vat_block >= start_block - 3; vat_block--) {
ino.logicalBlockNum = vat_block - map->s_partition_root;
- sbi->s_vat_inode = udf_iget(sb, &ino);
+ inode = udf_iget(sb, &ino);
+ if (!IS_ERR(inode)) {
+ sbi->s_vat_inode = inode;
+ break;
+ }
}
}
@@ -2205,10 +2218,10 @@ static int udf_fill_super(struct super_block *sb, void *options, int silent)
/* assign inodes by physical block number */
/* perhaps it's not extensible enough, but for now ... */
inode = udf_iget(sb, &rootdir);
- if (!inode) {
+ if (IS_ERR(inode)) {
udf_err(sb, "Error in udf_iget, block=%d, partition=%d\n",
rootdir.logicalBlockNum, rootdir.partitionReferenceNum);
- ret = -EIO;
+ ret = PTR_ERR(inode);
goto error_out;
}
diff --git a/fs/udf/udfdecl.h b/fs/udf/udfdecl.h
index be7dabbbcb49..742557be9936 100644
--- a/fs/udf/udfdecl.h
+++ b/fs/udf/udfdecl.h
@@ -143,7 +143,6 @@ extern int udf_expand_file_adinicb(struct inode *);
extern struct buffer_head *udf_expand_dir_adinicb(struct inode *, int *, int *);
extern struct buffer_head *udf_bread(struct inode *, int, int, int *);
extern int udf_setsize(struct inode *, loff_t);
-extern void udf_read_inode(struct inode *);
extern void udf_evict_inode(struct inode *);
extern int udf_write_inode(struct inode *, struct writeback_control *wbc);
extern long udf_block_map(struct inode *, sector_t);
@@ -209,7 +208,7 @@ extern int udf_CS0toUTF8(struct ustr *, const struct ustr *);
/* ialloc.c */
extern void udf_free_inode(struct inode *);
-extern struct inode *udf_new_inode(struct inode *, umode_t, int *);
+extern struct inode *udf_new_inode(struct inode *, umode_t);
/* truncate.c */
extern void udf_truncate_tail_extent(struct inode *);
diff --git a/fs/ufs/inode.c b/fs/ufs/inode.c
index 7c580c97990e..be7d42c7d938 100644
--- a/fs/ufs/inode.c
+++ b/fs/ufs/inode.c
@@ -902,9 +902,6 @@ void ufs_evict_inode(struct inode * inode)
invalidate_inode_buffers(inode);
clear_inode(inode);
- if (want_delete) {
- lock_ufs(inode->i_sb);
- ufs_free_inode (inode);
- unlock_ufs(inode->i_sb);
- }
+ if (want_delete)
+ ufs_free_inode(inode);
}
diff --git a/fs/ufs/namei.c b/fs/ufs/namei.c
index 90d74b8f8eba..2df62a73f20c 100644
--- a/fs/ufs/namei.c
+++ b/fs/ufs/namei.c
@@ -126,12 +126,12 @@ static int ufs_symlink (struct inode * dir, struct dentry * dentry,
if (l > sb->s_blocksize)
goto out_notlocked;
- lock_ufs(dir->i_sb);
inode = ufs_new_inode(dir, S_IFLNK | S_IRWXUGO);
err = PTR_ERR(inode);
if (IS_ERR(inode))
- goto out;
+ goto out_notlocked;
+ lock_ufs(dir->i_sb);
if (l > UFS_SB(sb)->s_uspi->s_maxsymlinklen) {
/* slow symlink */
inode->i_op = &ufs_symlink_inode_operations;
@@ -181,13 +181,9 @@ static int ufs_mkdir(struct inode * dir, struct dentry * dentry, umode_t mode)
struct inode * inode;
int err;
- lock_ufs(dir->i_sb);
- inode_inc_link_count(dir);
-
inode = ufs_new_inode(dir, S_IFDIR|mode);
- err = PTR_ERR(inode);
if (IS_ERR(inode))
- goto out_dir;
+ return PTR_ERR(inode);
inode->i_op = &ufs_dir_inode_operations;
inode->i_fop = &ufs_dir_operations;
@@ -195,6 +191,9 @@ static int ufs_mkdir(struct inode * dir, struct dentry * dentry, umode_t mode)
inode_inc_link_count(inode);
+ lock_ufs(dir->i_sb);
+ inode_inc_link_count(dir);
+
err = ufs_make_empty(inode, dir);
if (err)
goto out_fail;
@@ -212,7 +211,6 @@ out_fail:
inode_dec_link_count(inode);
inode_dec_link_count(inode);
iput (inode);
-out_dir:
inode_dec_link_count(dir);
unlock_ufs(dir->i_sb);
goto out;
diff --git a/fs/xfs/libxfs/xfs_bmap.c b/fs/xfs/libxfs/xfs_bmap.c
index de2d26d32844..86df952d3e24 100644
--- a/fs/xfs/libxfs/xfs_bmap.c
+++ b/fs/xfs/libxfs/xfs_bmap.c
@@ -5424,7 +5424,7 @@ xfs_bmap_shift_extents(
struct xfs_bmap_free *flist,
int num_exts)
{
- struct xfs_btree_cur *cur;
+ struct xfs_btree_cur *cur = NULL;
struct xfs_bmbt_rec_host *gotp;
struct xfs_bmbt_irec got;
struct xfs_bmbt_irec left;
@@ -5435,7 +5435,7 @@ xfs_bmap_shift_extents(
int error = 0;
int i;
int whichfork = XFS_DATA_FORK;
- int logflags;
+ int logflags = 0;
xfs_filblks_t blockcount = 0;
int total_extents;
@@ -5478,16 +5478,11 @@ xfs_bmap_shift_extents(
}
}
- /* We are going to change core inode */
- logflags = XFS_ILOG_CORE;
if (ifp->if_flags & XFS_IFBROOT) {
cur = xfs_bmbt_init_cursor(mp, tp, ip, whichfork);
cur->bc_private.b.firstblock = *firstblock;
cur->bc_private.b.flist = flist;
cur->bc_private.b.flags = 0;
- } else {
- cur = NULL;
- logflags |= XFS_ILOG_DEXT;
}
/*
@@ -5545,11 +5540,14 @@ xfs_bmap_shift_extents(
blockcount = left.br_blockcount +
got.br_blockcount;
xfs_iext_remove(ip, *current_ext, 1, 0);
+ logflags |= XFS_ILOG_CORE;
if (cur) {
error = xfs_btree_delete(cur, &i);
if (error)
goto del_cursor;
XFS_WANT_CORRUPTED_GOTO(i == 1, del_cursor);
+ } else {
+ logflags |= XFS_ILOG_DEXT;
}
XFS_IFORK_NEXT_SET(ip, whichfork,
XFS_IFORK_NEXTENTS(ip, whichfork) - 1);
@@ -5575,6 +5573,7 @@ xfs_bmap_shift_extents(
got.br_startoff = startoff;
}
+ logflags |= XFS_ILOG_CORE;
if (cur) {
error = xfs_bmbt_update(cur, got.br_startoff,
got.br_startblock,
@@ -5582,6 +5581,8 @@ xfs_bmap_shift_extents(
got.br_state);
if (error)
goto del_cursor;
+ } else {
+ logflags |= XFS_ILOG_DEXT;
}
(*current_ext)++;
@@ -5597,6 +5598,7 @@ del_cursor:
xfs_btree_del_cursor(cur,
error ? XFS_BTREE_ERROR : XFS_BTREE_NOERROR);
- xfs_trans_log_inode(tp, ip, logflags);
+ if (logflags)
+ xfs_trans_log_inode(tp, ip, logflags);
return error;
}
diff --git a/fs/xfs/xfs_aops.c b/fs/xfs/xfs_aops.c
index 11e9b4caa54f..b984647c24db 100644
--- a/fs/xfs/xfs_aops.c
+++ b/fs/xfs/xfs_aops.c
@@ -1753,11 +1753,72 @@ xfs_vm_readpages(
return mpage_readpages(mapping, pages, nr_pages, xfs_get_blocks);
}
+/*
+ * This is basically a copy of __set_page_dirty_buffers() with one
+ * small tweak: buffers beyond EOF do not get marked dirty. If we mark them
+ * dirty, we'll never be able to clean them because we don't write buffers
+ * beyond EOF, and that means we can't invalidate pages that span EOF
+ * that have been marked dirty. Further, the dirty state can leak into
+ * the file interior if the file is extended, resulting in all sorts of
+ * bad things happening as the state does not match the underlying data.
+ *
+ * XXX: this really indicates that bufferheads in XFS need to die. Warts like
+ * this only exist because of bufferheads and how the generic code manages them.
+ */
+STATIC int
+xfs_vm_set_page_dirty(
+ struct page *page)
+{
+ struct address_space *mapping = page->mapping;
+ struct inode *inode = mapping->host;
+ loff_t end_offset;
+ loff_t offset;
+ int newly_dirty;
+
+ if (unlikely(!mapping))
+ return !TestSetPageDirty(page);
+
+ end_offset = i_size_read(inode);
+ offset = page_offset(page);
+
+ spin_lock(&mapping->private_lock);
+ if (page_has_buffers(page)) {
+ struct buffer_head *head = page_buffers(page);
+ struct buffer_head *bh = head;
+
+ do {
+ if (offset < end_offset)
+ set_buffer_dirty(bh);
+ bh = bh->b_this_page;
+ offset += 1 << inode->i_blkbits;
+ } while (bh != head);
+ }
+ newly_dirty = !TestSetPageDirty(page);
+ spin_unlock(&mapping->private_lock);
+
+ if (newly_dirty) {
+ /* sigh - __set_page_dirty() is static, so copy it here, too */
+ unsigned long flags;
+
+ spin_lock_irqsave(&mapping->tree_lock, flags);
+ if (page->mapping) { /* Race with truncate? */
+ WARN_ON_ONCE(!PageUptodate(page));
+ account_page_dirtied(page, mapping);
+ radix_tree_tag_set(&mapping->page_tree,
+ page_index(page), PAGECACHE_TAG_DIRTY);
+ }
+ spin_unlock_irqrestore(&mapping->tree_lock, flags);
+ __mark_inode_dirty(mapping->host, I_DIRTY_PAGES);
+ }
+ return newly_dirty;
+}
+
const struct address_space_operations xfs_address_space_operations = {
.readpage = xfs_vm_readpage,
.readpages = xfs_vm_readpages,
.writepage = xfs_vm_writepage,
.writepages = xfs_vm_writepages,
+ .set_page_dirty = xfs_vm_set_page_dirty,
.releasepage = xfs_vm_releasepage,
.invalidatepage = xfs_vm_invalidatepage,
.write_begin = xfs_vm_write_begin,
diff --git a/fs/xfs/xfs_bmap_util.c b/fs/xfs/xfs_bmap_util.c
index 2f1e30d39a35..1707980f9a4b 100644
--- a/fs/xfs/xfs_bmap_util.c
+++ b/fs/xfs/xfs_bmap_util.c
@@ -1470,6 +1470,26 @@ xfs_collapse_file_space(
start_fsb = XFS_B_TO_FSB(mp, offset + len);
shift_fsb = XFS_B_TO_FSB(mp, len);
+ /*
+ * Writeback the entire file and force remove any post-eof blocks. The
+ * writeback prevents changes to the extent list via concurrent
+ * writeback and the eofblocks trim prevents the extent shift algorithm
+ * from running into a post-eof delalloc extent.
+ *
+ * XXX: This is a temporary fix until the extent shift loop below is
+ * converted to use offsets and lookups within the ILOCK rather than
+ * carrying around the index into the extent list for the next
+ * iteration.
+ */
+ error = filemap_write_and_wait(VFS_I(ip)->i_mapping);
+ if (error)
+ return error;
+ if (xfs_can_free_eofblocks(ip, true)) {
+ error = xfs_free_eofblocks(mp, ip, false);
+ if (error)
+ return error;
+ }
+
error = xfs_free_file_space(ip, offset, len);
if (error)
return error;
diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c
index 076b1708d134..de5368c803f9 100644
--- a/fs/xfs/xfs_file.c
+++ b/fs/xfs/xfs_file.c
@@ -291,12 +291,22 @@ xfs_file_read_iter(
if (inode->i_mapping->nrpages) {
ret = filemap_write_and_wait_range(
VFS_I(ip)->i_mapping,
- pos, -1);
+ pos, pos + size - 1);
if (ret) {
xfs_rw_iunlock(ip, XFS_IOLOCK_EXCL);
return ret;
}
- truncate_pagecache_range(VFS_I(ip), pos, -1);
+
+ /*
+ * Invalidate whole pages. This can return an error if
+ * we fail to invalidate a page, but this should never
+ * happen on XFS. Warn if it does fail.
+ */
+ ret = invalidate_inode_pages2_range(VFS_I(ip)->i_mapping,
+ pos >> PAGE_CACHE_SHIFT,
+ (pos + size - 1) >> PAGE_CACHE_SHIFT);
+ WARN_ON_ONCE(ret);
+ ret = 0;
}
xfs_rw_ilock_demote(ip, XFS_IOLOCK_EXCL);
}
@@ -632,10 +642,19 @@ xfs_file_dio_aio_write(
if (mapping->nrpages) {
ret = filemap_write_and_wait_range(VFS_I(ip)->i_mapping,
- pos, -1);
+ pos, pos + count - 1);
if (ret)
goto out;
- truncate_pagecache_range(VFS_I(ip), pos, -1);
+ /*
+ * Invalidate whole pages. This can return an error if
+ * we fail to invalidate a page, but this should never
+ * happen on XFS. Warn if it does fail.
+ */
+ ret = invalidate_inode_pages2_range(VFS_I(ip)->i_mapping,
+ pos >> PAGE_CACHE_SHIFT,
+ (pos + count - 1) >> PAGE_CACHE_SHIFT);
+ WARN_ON_ONCE(ret);
+ ret = 0;
}
/*