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authorLinus Torvalds <torvalds@linux-foundation.org>2014-12-10 18:34:42 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2014-12-10 18:34:42 -0800
commitb6da0076bab5a12afb19312ffee41c95490af2a0 (patch)
tree52a5675b9c2ff95d88b981d5b9a3822f6073c112 /fs/ocfs2
parentcbfe0de303a55ed96d8831c2d5f56f8131cd6612 (diff)
parenta53b831549141aa060a8b54b76e3a42870d74cc0 (diff)
downloadlinux-b6da0076bab5a12afb19312ffee41c95490af2a0.tar.bz2
Merge branch 'akpm' (patchbomb from Andrew)
Merge first patchbomb from Andrew Morton: - a few minor cifs fixes - dma-debug upadtes - ocfs2 - slab - about half of MM - procfs - kernel/exit.c - panic.c tweaks - printk upates - lib/ updates - checkpatch updates - fs/binfmt updates - the drivers/rtc tree - nilfs - kmod fixes - more kernel/exit.c - various other misc tweaks and fixes * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (190 commits) exit: pidns: fix/update the comments in zap_pid_ns_processes() exit: pidns: alloc_pid() leaks pid_namespace if child_reaper is exiting exit: exit_notify: re-use "dead" list to autoreap current exit: reparent: call forget_original_parent() under tasklist_lock exit: reparent: avoid find_new_reaper() if no children exit: reparent: introduce find_alive_thread() exit: reparent: introduce find_child_reaper() exit: reparent: document the ->has_child_subreaper checks exit: reparent: s/while_each_thread/for_each_thread/ in find_new_reaper() exit: reparent: fix the cross-namespace PR_SET_CHILD_SUBREAPER reparenting exit: reparent: fix the dead-parent PR_SET_CHILD_SUBREAPER reparenting exit: proc: don't try to flush /proc/tgid/task/tgid exit: release_task: fix the comment about group leader accounting exit: wait: drop tasklist_lock before psig->c* accounting exit: wait: don't use zombie->real_parent exit: wait: cleanup the ptrace_reparented() checks usermodehelper: kill the kmod_thread_locker logic usermodehelper: don't use CLONE_VFORK for ____call_usermodehelper() fs/hfs/catalog.c: fix comparison bug in hfs_cat_keycmp nilfs2: fix the nilfs_iget() vs. nilfs_new_inode() races ...
Diffstat (limited to 'fs/ocfs2')
-rw-r--r--fs/ocfs2/aops.c2
-rw-r--r--fs/ocfs2/cluster/heartbeat.c4
-rw-r--r--fs/ocfs2/cluster/tcp.c2
-rw-r--r--fs/ocfs2/dir.c2
-rw-r--r--fs/ocfs2/dlm/dlmdomain.c2
-rw-r--r--fs/ocfs2/dlm/dlmmaster.c12
-rw-r--r--fs/ocfs2/dlm/dlmrecovery.c18
-rw-r--r--fs/ocfs2/dlmglue.c37
-rw-r--r--fs/ocfs2/file.c4
-rw-r--r--fs/ocfs2/inode.c3
-rw-r--r--fs/ocfs2/move_extents.c3
-rw-r--r--fs/ocfs2/ocfs2.h6
-rw-r--r--fs/ocfs2/slot_map.c2
-rw-r--r--fs/ocfs2/super.c3
-rw-r--r--fs/ocfs2/xattr.c2
15 files changed, 74 insertions, 28 deletions
diff --git a/fs/ocfs2/aops.c b/fs/ocfs2/aops.c
index 1ef547e49373..d9f222987f24 100644
--- a/fs/ocfs2/aops.c
+++ b/fs/ocfs2/aops.c
@@ -1251,7 +1251,7 @@ static int ocfs2_write_cluster(struct address_space *mapping,
ret = ocfs2_extent_map_get_blocks(inode, v_blkno, &p_blkno, NULL,
NULL);
if (ret < 0) {
- ocfs2_error(inode->i_sb, "Corrupting extend for inode %llu, "
+ mlog(ML_ERROR, "Get physical blkno failed for inode %llu, "
"at logical block %llu",
(unsigned long long)OCFS2_I(inode)->ip_blkno,
(unsigned long long)v_blkno);
diff --git a/fs/ocfs2/cluster/heartbeat.c b/fs/ocfs2/cluster/heartbeat.c
index eb9d48746ab4..16eff45727ee 100644
--- a/fs/ocfs2/cluster/heartbeat.c
+++ b/fs/ocfs2/cluster/heartbeat.c
@@ -1127,10 +1127,10 @@ static int o2hb_thread(void *data)
elapsed_msec = o2hb_elapsed_msecs(&before_hb, &after_hb);
mlog(ML_HEARTBEAT,
- "start = %lu.%lu, end = %lu.%lu, msec = %u\n",
+ "start = %lu.%lu, end = %lu.%lu, msec = %u, ret = %d\n",
before_hb.tv_sec, (unsigned long) before_hb.tv_usec,
after_hb.tv_sec, (unsigned long) after_hb.tv_usec,
- elapsed_msec);
+ elapsed_msec, ret);
if (!kthread_should_stop() &&
elapsed_msec < reg->hr_timeout_ms) {
diff --git a/fs/ocfs2/cluster/tcp.c b/fs/ocfs2/cluster/tcp.c
index a96044004064..2e355e0f8335 100644
--- a/fs/ocfs2/cluster/tcp.c
+++ b/fs/ocfs2/cluster/tcp.c
@@ -1736,7 +1736,7 @@ static void o2net_connect_expired(struct work_struct *work)
o2net_idle_timeout() / 1000,
o2net_idle_timeout() % 1000);
- o2net_set_nn_state(nn, NULL, 0, -ENOTCONN);
+ o2net_set_nn_state(nn, NULL, 0, 0);
}
spin_unlock(&nn->nn_lock);
}
diff --git a/fs/ocfs2/dir.c b/fs/ocfs2/dir.c
index c43d9b4a1ec0..79d56dc981bc 100644
--- a/fs/ocfs2/dir.c
+++ b/fs/ocfs2/dir.c
@@ -744,7 +744,7 @@ restart:
if (ocfs2_read_dir_block(dir, block, &bh, 0)) {
/* read error, skip block & hope for the best.
* ocfs2_read_dir_block() has released the bh. */
- ocfs2_error(dir->i_sb, "reading directory %llu, "
+ mlog(ML_ERROR, "reading directory %llu, "
"offset %lu\n",
(unsigned long long)OCFS2_I(dir)->ip_blkno,
block);
diff --git a/fs/ocfs2/dlm/dlmdomain.c b/fs/ocfs2/dlm/dlmdomain.c
index 02d315fef432..50a59d2337b2 100644
--- a/fs/ocfs2/dlm/dlmdomain.c
+++ b/fs/ocfs2/dlm/dlmdomain.c
@@ -877,7 +877,7 @@ static int dlm_query_join_handler(struct o2net_msg *msg, u32 len, void *data,
* to be put in someone's domain map.
* Also, explicitly disallow joining at certain troublesome
* times (ie. during recovery). */
- if (dlm && dlm->dlm_state != DLM_CTXT_LEAVING) {
+ if (dlm->dlm_state != DLM_CTXT_LEAVING) {
int bit = query->node_idx;
spin_lock(&dlm->spinlock);
diff --git a/fs/ocfs2/dlm/dlmmaster.c b/fs/ocfs2/dlm/dlmmaster.c
index 215e41abf101..3689b3592042 100644
--- a/fs/ocfs2/dlm/dlmmaster.c
+++ b/fs/ocfs2/dlm/dlmmaster.c
@@ -1460,6 +1460,18 @@ way_up_top:
/* take care of the easy cases up front */
spin_lock(&res->spinlock);
+
+ /*
+ * Right after dlm spinlock was released, dlm_thread could have
+ * purged the lockres. Check if lockres got unhashed. If so
+ * start over.
+ */
+ if (hlist_unhashed(&res->hash_node)) {
+ spin_unlock(&res->spinlock);
+ dlm_lockres_put(res);
+ goto way_up_top;
+ }
+
if (res->state & (DLM_LOCK_RES_RECOVERING|
DLM_LOCK_RES_MIGRATING)) {
spin_unlock(&res->spinlock);
diff --git a/fs/ocfs2/dlm/dlmrecovery.c b/fs/ocfs2/dlm/dlmrecovery.c
index 3365839d2971..79b5af5e6a7b 100644
--- a/fs/ocfs2/dlm/dlmrecovery.c
+++ b/fs/ocfs2/dlm/dlmrecovery.c
@@ -1656,14 +1656,18 @@ int dlm_do_master_requery(struct dlm_ctxt *dlm, struct dlm_lock_resource *res,
req.namelen = res->lockname.len;
memcpy(req.name, res->lockname.name, res->lockname.len);
+resend:
ret = o2net_send_message(DLM_MASTER_REQUERY_MSG, dlm->key,
&req, sizeof(req), nodenum, &status);
- /* XXX: negative status not handled properly here. */
if (ret < 0)
mlog(ML_ERROR, "Error %d when sending message %u (key "
"0x%x) to node %u\n", ret, DLM_MASTER_REQUERY_MSG,
dlm->key, nodenum);
- else {
+ else if (status == -ENOMEM) {
+ mlog_errno(status);
+ msleep(50);
+ goto resend;
+ } else {
BUG_ON(status < 0);
BUG_ON(status > DLM_LOCK_RES_OWNER_UNKNOWN);
*real_master = (u8) (status & 0xff);
@@ -1705,9 +1709,13 @@ int dlm_master_requery_handler(struct o2net_msg *msg, u32 len, void *data,
int ret = dlm_dispatch_assert_master(dlm, res,
0, 0, flags);
if (ret < 0) {
- mlog_errno(-ENOMEM);
- /* retry!? */
- BUG();
+ mlog_errno(ret);
+ spin_unlock(&res->spinlock);
+ dlm_lockres_put(res);
+ spin_unlock(&dlm->spinlock);
+ dlm_put(dlm);
+ /* sender will take care of this and retry */
+ return ret;
} else
__dlm_lockres_grab_inflight_worker(dlm, res);
spin_unlock(&res->spinlock);
diff --git a/fs/ocfs2/dlmglue.c b/fs/ocfs2/dlmglue.c
index 37297c14f9a3..1c423af04c69 100644
--- a/fs/ocfs2/dlmglue.c
+++ b/fs/ocfs2/dlmglue.c
@@ -861,8 +861,13 @@ static inline void ocfs2_generic_handle_convert_action(struct ocfs2_lock_res *lo
* We set the OCFS2_LOCK_UPCONVERT_FINISHING flag before clearing
* the OCFS2_LOCK_BUSY flag to prevent the dc thread from
* downconverting the lock before the upconvert has fully completed.
+ * Do not prevent the dc thread from downconverting if NONBLOCK lock
+ * had already returned.
*/
- lockres_or_flags(lockres, OCFS2_LOCK_UPCONVERT_FINISHING);
+ if (!(lockres->l_flags & OCFS2_LOCK_NONBLOCK_FINISHED))
+ lockres_or_flags(lockres, OCFS2_LOCK_UPCONVERT_FINISHING);
+ else
+ lockres_clear_flags(lockres, OCFS2_LOCK_NONBLOCK_FINISHED);
lockres_clear_flags(lockres, OCFS2_LOCK_BUSY);
}
@@ -1324,13 +1329,12 @@ static void lockres_add_mask_waiter(struct ocfs2_lock_res *lockres,
/* returns 0 if the mw that was removed was already satisfied, -EBUSY
* if the mask still hadn't reached its goal */
-static int lockres_remove_mask_waiter(struct ocfs2_lock_res *lockres,
+static int __lockres_remove_mask_waiter(struct ocfs2_lock_res *lockres,
struct ocfs2_mask_waiter *mw)
{
- unsigned long flags;
int ret = 0;
- spin_lock_irqsave(&lockres->l_lock, flags);
+ assert_spin_locked(&lockres->l_lock);
if (!list_empty(&mw->mw_item)) {
if ((lockres->l_flags & mw->mw_mask) != mw->mw_goal)
ret = -EBUSY;
@@ -1338,6 +1342,18 @@ static int lockres_remove_mask_waiter(struct ocfs2_lock_res *lockres,
list_del_init(&mw->mw_item);
init_completion(&mw->mw_complete);
}
+
+ return ret;
+}
+
+static int lockres_remove_mask_waiter(struct ocfs2_lock_res *lockres,
+ struct ocfs2_mask_waiter *mw)
+{
+ unsigned long flags;
+ int ret = 0;
+
+ spin_lock_irqsave(&lockres->l_lock, flags);
+ ret = __lockres_remove_mask_waiter(lockres, mw);
spin_unlock_irqrestore(&lockres->l_lock, flags);
return ret;
@@ -1373,6 +1389,7 @@ static int __ocfs2_cluster_lock(struct ocfs2_super *osb,
unsigned long flags;
unsigned int gen;
int noqueue_attempted = 0;
+ int dlm_locked = 0;
ocfs2_init_mask_waiter(&mw);
@@ -1481,6 +1498,7 @@ again:
ocfs2_recover_from_dlm_error(lockres, 1);
goto out;
}
+ dlm_locked = 1;
mlog(0, "lock %s, successful return from ocfs2_dlm_lock\n",
lockres->l_name);
@@ -1514,10 +1532,17 @@ out:
if (wait && arg_flags & OCFS2_LOCK_NONBLOCK &&
mw.mw_mask & (OCFS2_LOCK_BUSY|OCFS2_LOCK_BLOCKED)) {
wait = 0;
- if (lockres_remove_mask_waiter(lockres, &mw))
+ spin_lock_irqsave(&lockres->l_lock, flags);
+ if (__lockres_remove_mask_waiter(lockres, &mw)) {
+ if (dlm_locked)
+ lockres_or_flags(lockres,
+ OCFS2_LOCK_NONBLOCK_FINISHED);
+ spin_unlock_irqrestore(&lockres->l_lock, flags);
ret = -EAGAIN;
- else
+ } else {
+ spin_unlock_irqrestore(&lockres->l_lock, flags);
goto again;
+ }
}
if (wait) {
ret = ocfs2_wait_for_mask(&mw);
diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c
index 324dc93ac896..69fb9f75b082 100644
--- a/fs/ocfs2/file.c
+++ b/fs/ocfs2/file.c
@@ -2381,9 +2381,7 @@ out_dio:
if (ret < 0)
written = ret;
- if (!ret && ((old_size != i_size_read(inode)) ||
- (old_clusters != OCFS2_I(inode)->ip_clusters) ||
- has_refcount)) {
+ if (!ret) {
ret = jbd2_journal_force_commit(osb->journal->j_journal);
if (ret < 0)
written = ret;
diff --git a/fs/ocfs2/inode.c b/fs/ocfs2/inode.c
index 437de7f768c6..c8b25de9efbb 100644
--- a/fs/ocfs2/inode.c
+++ b/fs/ocfs2/inode.c
@@ -540,8 +540,7 @@ bail:
if (status < 0)
make_bad_inode(inode);
- if (args && bh)
- brelse(bh);
+ brelse(bh);
return status;
}
diff --git a/fs/ocfs2/move_extents.c b/fs/ocfs2/move_extents.c
index 74caffeeee1d..56a768d06aa6 100644
--- a/fs/ocfs2/move_extents.c
+++ b/fs/ocfs2/move_extents.c
@@ -904,9 +904,6 @@ static int ocfs2_move_extents(struct ocfs2_move_extents_context *context)
struct buffer_head *di_bh = NULL;
struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
- if (!inode)
- return -ENOENT;
-
if (ocfs2_is_hard_readonly(osb) || ocfs2_is_soft_readonly(osb))
return -EROFS;
diff --git a/fs/ocfs2/ocfs2.h b/fs/ocfs2/ocfs2.h
index bbec539230fd..7d6b7d090452 100644
--- a/fs/ocfs2/ocfs2.h
+++ b/fs/ocfs2/ocfs2.h
@@ -144,6 +144,12 @@ enum ocfs2_unlock_action {
* before the upconvert
* has completed */
+#define OCFS2_LOCK_NONBLOCK_FINISHED (0x00001000) /* NONBLOCK cluster
+ * lock has already
+ * returned, do not block
+ * dc thread from
+ * downconverting */
+
struct ocfs2_lock_res_ops;
typedef void (*ocfs2_lock_callback)(int status, unsigned long data);
diff --git a/fs/ocfs2/slot_map.c b/fs/ocfs2/slot_map.c
index a88b2a4fcc85..d5493e361a38 100644
--- a/fs/ocfs2/slot_map.c
+++ b/fs/ocfs2/slot_map.c
@@ -306,7 +306,7 @@ int ocfs2_slot_to_node_num_locked(struct ocfs2_super *osb, int slot_num,
assert_spin_locked(&osb->osb_lock);
BUG_ON(slot_num < 0);
- BUG_ON(slot_num > osb->max_slots);
+ BUG_ON(slot_num >= osb->max_slots);
if (!si->si_slots[slot_num].sl_valid)
return -ENOENT;
diff --git a/fs/ocfs2/super.c b/fs/ocfs2/super.c
index 0945814ddb7b..83723179e1ec 100644
--- a/fs/ocfs2/super.c
+++ b/fs/ocfs2/super.c
@@ -1629,8 +1629,9 @@ static int __init ocfs2_init(void)
ocfs2_debugfs_root = debugfs_create_dir("ocfs2", NULL);
if (!ocfs2_debugfs_root) {
- status = -EFAULT;
+ status = -ENOMEM;
mlog(ML_ERROR, "Unable to create ocfs2 debugfs root.\n");
+ goto out4;
}
ocfs2_set_locking_protocol();
diff --git a/fs/ocfs2/xattr.c b/fs/ocfs2/xattr.c
index 016f01df3825..662f8dee149f 100644
--- a/fs/ocfs2/xattr.c
+++ b/fs/ocfs2/xattr.c
@@ -1284,7 +1284,7 @@ int ocfs2_xattr_get_nolock(struct inode *inode,
return -EOPNOTSUPP;
if (!(oi->ip_dyn_features & OCFS2_HAS_XATTR_FL))
- ret = -ENODATA;
+ return -ENODATA;
xis.inode_bh = xbs.inode_bh = di_bh;
di = (struct ocfs2_dinode *)di_bh->b_data;