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authorLinus Torvalds <torvalds@linux-foundation.org>2010-03-03 08:53:17 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2010-03-03 08:53:17 -0800
commiteca281aad0c293e7698edea5834c252dd8108afa (patch)
treea78f3d0c092cf181bd13cffccece68e786ac56a9 /fs
parent7f5b09c15ab989ed5ce4adda0be42c1302df70b7 (diff)
parent9df5778ecee8b301b447fc05706792d5f447ace5 (diff)
downloadlinux-eca281aad0c293e7698edea5834c252dd8108afa.tar.bz2
Merge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jlbec/ocfs2
* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jlbec/ocfs2: (36 commits) Ocfs2: Move ocfs2 ioctl definitions from ocfs2_fs.h to newly added ocfs2_ioctl.h ocfs2: send SIGXFSZ if new filesize exceeds limit -v2 ocfs2/userdlm: Add tracing in userdlm ocfs2: Use a separate masklog for AST and BASTs dlm: allow dlm do recovery during shutdown ocfs2: Only bug out in direct io write for reflinked extent. ocfs2: fix warning in ocfs2_file_aio_write() ocfs2_dlmfs: Enable the use of user cluster stacks. ocfs2_dlmfs: Use the stackglue. ocfs2_dlmfs: Don't honor truncate. The size of a dlmfs file is LVB_LEN ocfs2: Pass the locking protocol into ocfs2_cluster_connect(). ocfs2: Remove the ast pointers from ocfs2_stack_plugins ocfs2: Hang the locking proto on the cluster conn and use it in asts. ocfs2: Attach the connection to the lksb ocfs2: Pass lksbs back from stackglue ast/bast functions. ocfs2_dlmfs: Move to its own directory ocfs2_dlmfs: Use poll() to signify BASTs. ocfs2_dlmfs: Add capabilities parameter. ocfs2: Handle errors while setting external xattr values. ocfs2: Set inline xattr entries with ocfs2_xa_set() ...
Diffstat (limited to 'fs')
-rw-r--r--fs/ocfs2/Makefile1
-rw-r--r--fs/ocfs2/alloc.c5
-rw-r--r--fs/ocfs2/aops.c5
-rw-r--r--fs/ocfs2/cluster/masklog.c1
-rw-r--r--fs/ocfs2/cluster/masklog.h7
-rw-r--r--fs/ocfs2/dir.c2
-rw-r--r--fs/ocfs2/dlm/Makefile3
-rw-r--r--fs/ocfs2/dlm/dlmrecovery.c2
-rw-r--r--fs/ocfs2/dlmfs/Makefile5
-rw-r--r--fs/ocfs2/dlmfs/dlmfs.c (renamed from fs/ocfs2/dlm/dlmfs.c)127
-rw-r--r--fs/ocfs2/dlmfs/dlmfsver.c (renamed from fs/ocfs2/dlm/dlmfsver.c)0
-rw-r--r--fs/ocfs2/dlmfs/dlmfsver.h (renamed from fs/ocfs2/dlm/dlmfsver.h)0
-rw-r--r--fs/ocfs2/dlmfs/userdlm.c (renamed from fs/ocfs2/dlm/userdlm.c)308
-rw-r--r--fs/ocfs2/dlmfs/userdlm.h (renamed from fs/ocfs2/dlm/userdlm.h)16
-rw-r--r--fs/ocfs2/dlmglue.c284
-rw-r--r--fs/ocfs2/file.c13
-rw-r--r--fs/ocfs2/ioctl.h6
-rw-r--r--fs/ocfs2/localalloc.c2
-rw-r--r--fs/ocfs2/ocfs2.h32
-rw-r--r--fs/ocfs2/ocfs2_fs.h57
-rw-r--r--fs/ocfs2/ocfs2_ioctl.h79
-rw-r--r--fs/ocfs2/ocfs2_lockingver.h2
-rw-r--r--fs/ocfs2/refcounttree.c6
-rw-r--r--fs/ocfs2/stack_o2cb.c37
-rw-r--r--fs/ocfs2/stack_user.c49
-rw-r--r--fs/ocfs2/stackglue.c98
-rw-r--r--fs/ocfs2/stackglue.h95
-rw-r--r--fs/ocfs2/suballoc.c171
-rw-r--r--fs/ocfs2/suballoc.h1
-rw-r--r--fs/ocfs2/super.c10
-rw-r--r--fs/ocfs2/xattr.c2182
31 files changed, 2014 insertions, 1592 deletions
diff --git a/fs/ocfs2/Makefile b/fs/ocfs2/Makefile
index 600d2d2ade11..791c0886c060 100644
--- a/fs/ocfs2/Makefile
+++ b/fs/ocfs2/Makefile
@@ -46,6 +46,7 @@ ocfs2_stackglue-objs := stackglue.o
ocfs2_stack_o2cb-objs := stack_o2cb.o
ocfs2_stack_user-objs := stack_user.o
+obj-$(CONFIG_OCFS2_FS) += dlmfs/
# cluster/ is always needed when OCFS2_FS for masklog support
obj-$(CONFIG_OCFS2_FS) += cluster/
obj-$(CONFIG_OCFS2_FS_O2CB) += dlm/
diff --git a/fs/ocfs2/alloc.c b/fs/ocfs2/alloc.c
index d17bdc718f74..2bbe1ecc08c0 100644
--- a/fs/ocfs2/alloc.c
+++ b/fs/ocfs2/alloc.c
@@ -1050,7 +1050,8 @@ static int ocfs2_create_new_meta_bhs(handle_t *handle,
strcpy(eb->h_signature, OCFS2_EXTENT_BLOCK_SIGNATURE);
eb->h_blkno = cpu_to_le64(first_blkno);
eb->h_fs_generation = cpu_to_le32(osb->fs_generation);
- eb->h_suballoc_slot = cpu_to_le16(osb->slot_num);
+ eb->h_suballoc_slot =
+ cpu_to_le16(meta_ac->ac_alloc_slot);
eb->h_suballoc_bit = cpu_to_le16(suballoc_bit_start);
eb->h_list.l_count =
cpu_to_le16(ocfs2_extent_recs_per_eb(osb->sb));
@@ -6037,7 +6038,7 @@ static void ocfs2_truncate_log_worker(struct work_struct *work)
if (status < 0)
mlog_errno(status);
else
- ocfs2_init_inode_steal_slot(osb);
+ ocfs2_init_steal_slots(osb);
mlog_exit(status);
}
diff --git a/fs/ocfs2/aops.c b/fs/ocfs2/aops.c
index 7e9df11260f4..4c2a6d282c4d 100644
--- a/fs/ocfs2/aops.c
+++ b/fs/ocfs2/aops.c
@@ -577,8 +577,9 @@ static int ocfs2_direct_IO_get_blocks(struct inode *inode, sector_t iblock,
goto bail;
}
- /* We should already CoW the refcounted extent. */
- BUG_ON(ext_flags & OCFS2_EXT_REFCOUNTED);
+ /* We should already CoW the refcounted extent in case of create. */
+ BUG_ON(create && (ext_flags & OCFS2_EXT_REFCOUNTED));
+
/*
* get_more_blocks() expects us to describe a hole by clearing
* the mapped bit on bh_result().
diff --git a/fs/ocfs2/cluster/masklog.c b/fs/ocfs2/cluster/masklog.c
index 1cd2934de615..b39da877b12f 100644
--- a/fs/ocfs2/cluster/masklog.c
+++ b/fs/ocfs2/cluster/masklog.c
@@ -112,6 +112,7 @@ static struct mlog_attribute mlog_attrs[MLOG_MAX_BITS] = {
define_mask(XATTR),
define_mask(QUOTA),
define_mask(REFCOUNT),
+ define_mask(BASTS),
define_mask(ERROR),
define_mask(NOTICE),
define_mask(KTHREAD),
diff --git a/fs/ocfs2/cluster/masklog.h b/fs/ocfs2/cluster/masklog.h
index 9b4d11726cf2..3dfddbec32f2 100644
--- a/fs/ocfs2/cluster/masklog.h
+++ b/fs/ocfs2/cluster/masklog.h
@@ -114,6 +114,7 @@
#define ML_XATTR 0x0000000020000000ULL /* ocfs2 extended attributes */
#define ML_QUOTA 0x0000000040000000ULL /* ocfs2 quota operations */
#define ML_REFCOUNT 0x0000000080000000ULL /* refcount tree operations */
+#define ML_BASTS 0x0000001000000000ULL /* dlmglue asts and basts */
/* bits that are infrequently given and frequently matched in the high word */
#define ML_ERROR 0x0000000100000000ULL /* sent to KERN_ERR */
#define ML_NOTICE 0x0000000200000000ULL /* setn to KERN_NOTICE */
@@ -194,9 +195,9 @@ extern struct mlog_bits mlog_and_bits, mlog_not_bits;
* previous token if args expands to nothing.
*/
#define __mlog_printk(level, fmt, args...) \
- printk(level "(%u,%lu):%s:%d " fmt, task_pid_nr(current), \
- __mlog_cpu_guess, __PRETTY_FUNCTION__, __LINE__ , \
- ##args)
+ printk(level "(%s,%u,%lu):%s:%d " fmt, current->comm, \
+ task_pid_nr(current), __mlog_cpu_guess, \
+ __PRETTY_FUNCTION__, __LINE__ , ##args)
#define mlog(mask, fmt, args...) do { \
u64 __m = MLOG_MASK_PREFIX | (mask); \
diff --git a/fs/ocfs2/dir.c b/fs/ocfs2/dir.c
index 28c3ec238796..765d66c70989 100644
--- a/fs/ocfs2/dir.c
+++ b/fs/ocfs2/dir.c
@@ -2439,7 +2439,7 @@ static int ocfs2_dx_dir_attach_index(struct ocfs2_super *osb,
dx_root = (struct ocfs2_dx_root_block *)dx_root_bh->b_data;
memset(dx_root, 0, osb->sb->s_blocksize);
strcpy(dx_root->dr_signature, OCFS2_DX_ROOT_SIGNATURE);
- dx_root->dr_suballoc_slot = cpu_to_le16(osb->slot_num);
+ dx_root->dr_suballoc_slot = cpu_to_le16(meta_ac->ac_alloc_slot);
dx_root->dr_suballoc_bit = cpu_to_le16(dr_suballoc_bit);
dx_root->dr_fs_generation = cpu_to_le32(osb->fs_generation);
dx_root->dr_blkno = cpu_to_le64(dr_blkno);
diff --git a/fs/ocfs2/dlm/Makefile b/fs/ocfs2/dlm/Makefile
index 190361375700..dcebf0d920fa 100644
--- a/fs/ocfs2/dlm/Makefile
+++ b/fs/ocfs2/dlm/Makefile
@@ -1,8 +1,7 @@
EXTRA_CFLAGS += -Ifs/ocfs2
-obj-$(CONFIG_OCFS2_FS_O2CB) += ocfs2_dlm.o ocfs2_dlmfs.o
+obj-$(CONFIG_OCFS2_FS_O2CB) += ocfs2_dlm.o
ocfs2_dlm-objs := dlmdomain.o dlmdebug.o dlmthread.o dlmrecovery.o \
dlmmaster.o dlmast.o dlmconvert.o dlmlock.o dlmunlock.o dlmver.o
-ocfs2_dlmfs-objs := userdlm.o dlmfs.o dlmfsver.o
diff --git a/fs/ocfs2/dlm/dlmrecovery.c b/fs/ocfs2/dlm/dlmrecovery.c
index 344bcf90cbf4..b4f99de2caf3 100644
--- a/fs/ocfs2/dlm/dlmrecovery.c
+++ b/fs/ocfs2/dlm/dlmrecovery.c
@@ -310,7 +310,7 @@ static int dlm_recovery_thread(void *data)
mlog(0, "dlm thread running for %s...\n", dlm->name);
while (!kthread_should_stop()) {
- if (dlm_joined(dlm)) {
+ if (dlm_domain_fully_joined(dlm)) {
status = dlm_do_recovery(dlm);
if (status == -EAGAIN) {
/* do not sleep, recheck immediately. */
diff --git a/fs/ocfs2/dlmfs/Makefile b/fs/ocfs2/dlmfs/Makefile
new file mode 100644
index 000000000000..df69b4856d0d
--- /dev/null
+++ b/fs/ocfs2/dlmfs/Makefile
@@ -0,0 +1,5 @@
+EXTRA_CFLAGS += -Ifs/ocfs2
+
+obj-$(CONFIG_OCFS2_FS) += ocfs2_dlmfs.o
+
+ocfs2_dlmfs-objs := userdlm.o dlmfs.o dlmfsver.o
diff --git a/fs/ocfs2/dlm/dlmfs.c b/fs/ocfs2/dlmfs/dlmfs.c
index 02bf17808bdc..1b0de157a08c 100644
--- a/fs/ocfs2/dlm/dlmfs.c
+++ b/fs/ocfs2/dlmfs/dlmfs.c
@@ -43,24 +43,17 @@
#include <linux/init.h>
#include <linux/string.h>
#include <linux/backing-dev.h>
+#include <linux/poll.h>
#include <asm/uaccess.h>
-
-#include "cluster/nodemanager.h"
-#include "cluster/heartbeat.h"
-#include "cluster/tcp.h"
-
-#include "dlmapi.h"
-
+#include "stackglue.h"
#include "userdlm.h"
-
#include "dlmfsver.h"
#define MLOG_MASK_PREFIX ML_DLMFS
#include "cluster/masklog.h"
-#include "ocfs2_lockingver.h"
static const struct super_operations dlmfs_ops;
static const struct file_operations dlmfs_file_operations;
@@ -71,15 +64,46 @@ static struct kmem_cache *dlmfs_inode_cache;
struct workqueue_struct *user_dlm_worker;
+
+
/*
- * This is the userdlmfs locking protocol version.
+ * These are the ABI capabilities of dlmfs.
+ *
+ * Over time, dlmfs has added some features that were not part of the
+ * initial ABI. Unfortunately, some of these features are not detectable
+ * via standard usage. For example, Linux's default poll always returns
+ * POLLIN, so there is no way for a caller of poll(2) to know when dlmfs
+ * added poll support. Instead, we provide this list of new capabilities.
+ *
+ * Capabilities is a read-only attribute. We do it as a module parameter
+ * so we can discover it whether dlmfs is built in, loaded, or even not
+ * loaded.
*
- * See fs/ocfs2/dlmglue.c for more details on locking versions.
+ * The ABI features are local to this machine's dlmfs mount. This is
+ * distinct from the locking protocol, which is concerned with inter-node
+ * interaction.
+ *
+ * Capabilities:
+ * - bast : POLLIN against the file descriptor of a held lock
+ * signifies a bast fired on the lock.
*/
-static const struct dlm_protocol_version user_locking_protocol = {
- .pv_major = OCFS2_LOCKING_PROTOCOL_MAJOR,
- .pv_minor = OCFS2_LOCKING_PROTOCOL_MINOR,
-};
+#define DLMFS_CAPABILITIES "bast stackglue"
+extern int param_set_dlmfs_capabilities(const char *val,
+ struct kernel_param *kp)
+{
+ printk(KERN_ERR "%s: readonly parameter\n", kp->name);
+ return -EINVAL;
+}
+static int param_get_dlmfs_capabilities(char *buffer,
+ struct kernel_param *kp)
+{
+ return strlcpy(buffer, DLMFS_CAPABILITIES,
+ strlen(DLMFS_CAPABILITIES) + 1);
+}
+module_param_call(capabilities, param_set_dlmfs_capabilities,
+ param_get_dlmfs_capabilities, NULL, 0444);
+MODULE_PARM_DESC(capabilities, DLMFS_CAPABILITIES);
+
/*
* decodes a set of open flags into a valid lock level and a set of flags.
@@ -179,13 +203,46 @@ static int dlmfs_file_release(struct inode *inode,
return 0;
}
+/*
+ * We do ->setattr() just to override size changes. Our size is the size
+ * of the LVB and nothing else.
+ */
+static int dlmfs_file_setattr(struct dentry *dentry, struct iattr *attr)
+{
+ int error;
+ struct inode *inode = dentry->d_inode;
+
+ attr->ia_valid &= ~ATTR_SIZE;
+ error = inode_change_ok(inode, attr);
+ if (!error)
+ error = inode_setattr(inode, attr);
+
+ return error;
+}
+
+static unsigned int dlmfs_file_poll(struct file *file, poll_table *wait)
+{
+ int event = 0;
+ struct inode *inode = file->f_path.dentry->d_inode;
+ struct dlmfs_inode_private *ip = DLMFS_I(inode);
+
+ poll_wait(file, &ip->ip_lockres.l_event, wait);
+
+ spin_lock(&ip->ip_lockres.l_lock);
+ if (ip->ip_lockres.l_flags & USER_LOCK_BLOCKED)
+ event = POLLIN | POLLRDNORM;
+ spin_unlock(&ip->ip_lockres.l_lock);
+
+ return event;
+}
+
static ssize_t dlmfs_file_read(struct file *filp,
char __user *buf,
size_t count,
loff_t *ppos)
{
int bytes_left;
- ssize_t readlen;
+ ssize_t readlen, got;
char *lvb_buf;
struct inode *inode = filp->f_path.dentry->d_inode;
@@ -211,9 +268,13 @@ static ssize_t dlmfs_file_read(struct file *filp,
if (!lvb_buf)
return -ENOMEM;
- user_dlm_read_lvb(inode, lvb_buf, readlen);
- bytes_left = __copy_to_user(buf, lvb_buf, readlen);
- readlen -= bytes_left;
+ got = user_dlm_read_lvb(inode, lvb_buf, readlen);
+ if (got) {
+ BUG_ON(got != readlen);
+ bytes_left = __copy_to_user(buf, lvb_buf, readlen);
+ readlen -= bytes_left;
+ } else
+ readlen = 0;
kfree(lvb_buf);
@@ -272,7 +333,7 @@ static void dlmfs_init_once(void *foo)
struct dlmfs_inode_private *ip =
(struct dlmfs_inode_private *) foo;
- ip->ip_dlm = NULL;
+ ip->ip_conn = NULL;
ip->ip_parent = NULL;
inode_init_once(&ip->ip_vfs_inode);
@@ -314,14 +375,14 @@ static void dlmfs_clear_inode(struct inode *inode)
goto clear_fields;
}
- mlog(0, "we're a directory, ip->ip_dlm = 0x%p\n", ip->ip_dlm);
+ mlog(0, "we're a directory, ip->ip_conn = 0x%p\n", ip->ip_conn);
/* we must be a directory. If required, lets unregister the
* dlm context now. */
- if (ip->ip_dlm)
- user_dlm_unregister_context(ip->ip_dlm);
+ if (ip->ip_conn)
+ user_dlm_unregister(ip->ip_conn);
clear_fields:
ip->ip_parent = NULL;
- ip->ip_dlm = NULL;
+ ip->ip_conn = NULL;
}
static struct backing_dev_info dlmfs_backing_dev_info = {
@@ -371,7 +432,7 @@ static struct inode *dlmfs_get_inode(struct inode *parent,
inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME;
ip = DLMFS_I(inode);
- ip->ip_dlm = DLMFS_I(parent)->ip_dlm;
+ ip->ip_conn = DLMFS_I(parent)->ip_conn;
switch (mode & S_IFMT) {
default:
@@ -425,13 +486,12 @@ static int dlmfs_mkdir(struct inode * dir,
struct inode *inode = NULL;
struct qstr *domain = &dentry->d_name;
struct dlmfs_inode_private *ip;
- struct dlm_ctxt *dlm;
- struct dlm_protocol_version proto = user_locking_protocol;
+ struct ocfs2_cluster_connection *conn;
mlog(0, "mkdir %.*s\n", domain->len, domain->name);
/* verify that we have a proper domain */
- if (domain->len >= O2NM_MAX_NAME_LEN) {
+ if (domain->len >= GROUP_NAME_MAX) {
status = -EINVAL;
mlog(ML_ERROR, "invalid domain name for directory.\n");
goto bail;
@@ -446,14 +506,14 @@ static int dlmfs_mkdir(struct inode * dir,
ip = DLMFS_I(inode);
- dlm = user_dlm_register_context(domain, &proto);
- if (IS_ERR(dlm)) {
- status = PTR_ERR(dlm);
+ conn = user_dlm_register(domain);
+ if (IS_ERR(conn)) {
+ status = PTR_ERR(conn);
mlog(ML_ERROR, "Error %d could not register domain \"%.*s\"\n",
status, domain->len, domain->name);
goto bail;
}
- ip->ip_dlm = dlm;
+ ip->ip_conn = conn;
inc_nlink(dir);
d_instantiate(dentry, inode);
@@ -549,6 +609,7 @@ static int dlmfs_fill_super(struct super_block * sb,
static const struct file_operations dlmfs_file_operations = {
.open = dlmfs_file_open,
.release = dlmfs_file_release,
+ .poll = dlmfs_file_poll,
.read = dlmfs_file_read,
.write = dlmfs_file_write,
};
@@ -576,6 +637,7 @@ static const struct super_operations dlmfs_ops = {
static const struct inode_operations dlmfs_file_inode_operations = {
.getattr = simple_getattr,
+ .setattr = dlmfs_file_setattr,
};
static int dlmfs_get_sb(struct file_system_type *fs_type,
@@ -620,6 +682,7 @@ static int __init init_dlmfs_fs(void)
}
cleanup_worker = 1;
+ user_dlm_set_locking_protocol();
status = register_filesystem(&dlmfs_fs_type);
bail:
if (status) {
diff --git a/fs/ocfs2/dlm/dlmfsver.c b/fs/ocfs2/dlmfs/dlmfsver.c
index a733b3321f83..a733b3321f83 100644
--- a/fs/ocfs2/dlm/dlmfsver.c
+++ b/fs/ocfs2/dlmfs/dlmfsver.c
diff --git a/fs/ocfs2/dlm/dlmfsver.h b/fs/ocfs2/dlmfs/dlmfsver.h
index f35eadbed25c..f35eadbed25c 100644
--- a/fs/ocfs2/dlm/dlmfsver.h
+++ b/fs/ocfs2/dlmfs/dlmfsver.h
diff --git a/fs/ocfs2/dlm/userdlm.c b/fs/ocfs2/dlmfs/userdlm.c
index 4cb1d3dae250..0499e3fb7bdb 100644
--- a/fs/ocfs2/dlm/userdlm.c
+++ b/fs/ocfs2/dlmfs/userdlm.c
@@ -34,18 +34,19 @@
#include <linux/types.h>
#include <linux/crc32.h>
-
-#include "cluster/nodemanager.h"
-#include "cluster/heartbeat.h"
-#include "cluster/tcp.h"
-
-#include "dlmapi.h"
-
+#include "ocfs2_lockingver.h"
+#include "stackglue.h"
#include "userdlm.h"
#define MLOG_MASK_PREFIX ML_DLMFS
#include "cluster/masklog.h"
+
+static inline struct user_lock_res *user_lksb_to_lock_res(struct ocfs2_dlm_lksb *lksb)
+{
+ return container_of(lksb, struct user_lock_res, l_lksb);
+}
+
static inline int user_check_wait_flag(struct user_lock_res *lockres,
int flag)
{
@@ -73,15 +74,15 @@ static inline void user_wait_on_blocked_lock(struct user_lock_res *lockres)
}
/* I heart container_of... */
-static inline struct dlm_ctxt *
-dlm_ctxt_from_user_lockres(struct user_lock_res *lockres)
+static inline struct ocfs2_cluster_connection *
+cluster_connection_from_user_lockres(struct user_lock_res *lockres)
{
struct dlmfs_inode_private *ip;
ip = container_of(lockres,
struct dlmfs_inode_private,
ip_lockres);
- return ip->ip_dlm;
+ return ip->ip_conn;
}
static struct inode *
@@ -103,9 +104,9 @@ static inline void user_recover_from_dlm_error(struct user_lock_res *lockres)
}
#define user_log_dlm_error(_func, _stat, _lockres) do { \
- mlog(ML_ERROR, "Dlm error \"%s\" while calling %s on " \
- "resource %.*s: %s\n", dlm_errname(_stat), _func, \
- _lockres->l_namelen, _lockres->l_name, dlm_errmsg(_stat)); \
+ mlog(ML_ERROR, "Dlm error %d while calling %s on " \
+ "resource %.*s\n", _stat, _func, \
+ _lockres->l_namelen, _lockres->l_name); \
} while (0)
/* WARNING: This function lives in a world where the only three lock
@@ -113,34 +114,35 @@ static inline void user_recover_from_dlm_error(struct user_lock_res *lockres)
* lock types are added. */
static inline int user_highest_compat_lock_level(int level)
{
- int new_level = LKM_EXMODE;
+ int new_level = DLM_LOCK_EX;
- if (level == LKM_EXMODE)
- new_level = LKM_NLMODE;
- else if (level == LKM_PRMODE)
- new_level = LKM_PRMODE;
+ if (level == DLM_LOCK_EX)
+ new_level = DLM_LOCK_NL;
+ else if (level == DLM_LOCK_PR)
+ new_level = DLM_LOCK_PR;
return new_level;
}
-static void user_ast(void *opaque)
+static void user_ast(struct ocfs2_dlm_lksb *lksb)
{
- struct user_lock_res *lockres = opaque;
- struct dlm_lockstatus *lksb;
+ struct user_lock_res *lockres = user_lksb_to_lock_res(lksb);
+ int status;
- mlog(0, "AST fired for lockres %.*s\n", lockres->l_namelen,
- lockres->l_name);
+ mlog(ML_BASTS, "AST fired for lockres %.*s, level %d => %d\n",
+ lockres->l_namelen, lockres->l_name, lockres->l_level,
+ lockres->l_requested);
spin_lock(&lockres->l_lock);
- lksb = &(lockres->l_lksb);
- if (lksb->status != DLM_NORMAL) {
+ status = ocfs2_dlm_lock_status(&lockres->l_lksb);
+ if (status) {
mlog(ML_ERROR, "lksb status value of %u on lockres %.*s\n",
- lksb->status, lockres->l_namelen, lockres->l_name);
+ status, lockres->l_namelen, lockres->l_name);
spin_unlock(&lockres->l_lock);
return;
}
- mlog_bug_on_msg(lockres->l_requested == LKM_IVMODE,
+ mlog_bug_on_msg(lockres->l_requested == DLM_LOCK_IV,
"Lockres %.*s, requested ivmode. flags 0x%x\n",
lockres->l_namelen, lockres->l_name, lockres->l_flags);
@@ -148,13 +150,13 @@ static void user_ast(void *opaque)
if (lockres->l_requested < lockres->l_level) {
if (lockres->l_requested <=
user_highest_compat_lock_level(lockres->l_blocking)) {
- lockres->l_blocking = LKM_NLMODE;
+ lockres->l_blocking = DLM_LOCK_NL;
lockres->l_flags &= ~USER_LOCK_BLOCKED;
}
}
lockres->l_level = lockres->l_requested;
- lockres->l_requested = LKM_IVMODE;
+ lockres->l_requested = DLM_LOCK_IV;
lockres->l_flags |= USER_LOCK_ATTACHED;
lockres->l_flags &= ~USER_LOCK_BUSY;
@@ -193,11 +195,11 @@ static void __user_dlm_cond_queue_lockres(struct user_lock_res *lockres)
return;
switch (lockres->l_blocking) {
- case LKM_EXMODE:
+ case DLM_LOCK_EX:
if (!lockres->l_ex_holders && !lockres->l_ro_holders)
queue = 1;
break;
- case LKM_PRMODE:
+ case DLM_LOCK_PR:
if (!lockres->l_ex_holders)
queue = 1;
break;
@@ -209,12 +211,12 @@ static void __user_dlm_cond_queue_lockres(struct user_lock_res *lockres)
__user_dlm_queue_lockres(lockres);
}
-static void user_bast(void *opaque, int level)
+static void user_bast(struct ocfs2_dlm_lksb *lksb, int level)
{
- struct user_lock_res *lockres = opaque;
+ struct user_lock_res *lockres = user_lksb_to_lock_res(lksb);
- mlog(0, "Blocking AST fired for lockres %.*s. Blocking level %d\n",
- lockres->l_namelen, lockres->l_name, level);
+ mlog(ML_BASTS, "BAST fired for lockres %.*s, blocking %d, level %d\n",
+ lockres->l_namelen, lockres->l_name, level, lockres->l_level);
spin_lock(&lockres->l_lock);
lockres->l_flags |= USER_LOCK_BLOCKED;
@@ -227,15 +229,15 @@ static void user_bast(void *opaque, int level)
wake_up(&lockres->l_event);
}
-static void user_unlock_ast(void *opaque, enum dlm_status status)
+static void user_unlock_ast(struct ocfs2_dlm_lksb *lksb, int status)
{
- struct user_lock_res *lockres = opaque;
+ struct user_lock_res *lockres = user_lksb_to_lock_res(lksb);
- mlog(0, "UNLOCK AST called on lock %.*s\n", lockres->l_namelen,
- lockres->l_name);
+ mlog(ML_BASTS, "UNLOCK AST fired for lockres %.*s, flags 0x%x\n",
+ lockres->l_namelen, lockres->l_name, lockres->l_flags);
- if (status != DLM_NORMAL && status != DLM_CANCELGRANT)
- mlog(ML_ERROR, "Dlm returns status %d\n", status);
+ if (status)
+ mlog(ML_ERROR, "dlm returns status %d\n", status);
spin_lock(&lockres->l_lock);
/* The teardown flag gets set early during the unlock process,
@@ -243,7 +245,7 @@ static void user_unlock_ast(void *opaque, enum dlm_status status)
* for a concurrent cancel. */
if (lockres->l_flags & USER_LOCK_IN_TEARDOWN
&& !(lockres->l_flags & USER_LOCK_IN_CANCEL)) {
- lockres->l_level = LKM_IVMODE;
+ lockres->l_level = DLM_LOCK_IV;
} else if (status == DLM_CANCELGRANT) {
/* We tried to cancel a convert request, but it was
* already granted. Don't clear the busy flag - the
@@ -254,7 +256,7 @@ static void user_unlock_ast(void *opaque, enum dlm_status status)
} else {
BUG_ON(!(lockres->l_flags & USER_LOCK_IN_CANCEL));
/* Cancel succeeded, we want to re-queue */
- lockres->l_requested = LKM_IVMODE; /* cancel an
+ lockres->l_requested = DLM_LOCK_IV; /* cancel an
* upconvert
* request. */
lockres->l_flags &= ~USER_LOCK_IN_CANCEL;
@@ -271,6 +273,21 @@ out_noclear:
wake_up(&lockres->l_event);
}
+/*
+ * This is the userdlmfs locking protocol version.
+ *
+ * See fs/ocfs2/dlmglue.c for more details on locking versions.
+ */
+static struct ocfs2_locking_protocol user_dlm_lproto = {
+ .lp_max_version = {
+ .pv_major = OCFS2_LOCKING_PROTOCOL_MAJOR,
+ .pv_minor = OCFS2_LOCKING_PROTOCOL_MINOR,
+ },
+ .lp_lock_ast = user_ast,
+ .lp_blocking_ast = user_bast,
+ .lp_unlock_ast = user_unlock_ast,
+};
+
static inline void user_dlm_drop_inode_ref(struct user_lock_res *lockres)
{
struct inode *inode;
@@ -283,10 +300,10 @@ static void user_dlm_unblock_lock(struct work_struct *work)
int new_level, status;
struct user_lock_res *lockres =
container_of(work, struct user_lock_res, l_work);
- struct dlm_ctxt *dlm = dlm_ctxt_from_user_lockres(lockres);
+ struct ocfs2_cluster_connection *conn =
+ cluster_connection_from_user_lockres(lockres);
- mlog(0, "processing lockres %.*s\n", lockres->l_namelen,
- lockres->l_name);
+ mlog(0, "lockres %.*s\n", lockres->l_namelen, lockres->l_name);
spin_lock(&lockres->l_lock);
@@ -304,17 +321,23 @@ static void user_dlm_unblock_lock(struct work_struct *work)
* flag, and finally we might get another bast which re-queues
* us before our ast for the downconvert is called. */
if (!(lockres->l_flags & USER_LOCK_BLOCKED)) {
+ mlog(ML_BASTS, "lockres %.*s USER_LOCK_BLOCKED\n",
+ lockres->l_namelen, lockres->l_name);
spin_unlock(&lockres->l_lock);
goto drop_ref;
}
if (lockres->l_flags & USER_LOCK_IN_TEARDOWN) {
+ mlog(ML_BASTS, "lockres %.*s USER_LOCK_IN_TEARDOWN\n",
+ lockres->l_namelen, lockres->l_name);
spin_unlock(&lockres->l_lock);
goto drop_ref;
}
if (lockres->l_flags & USER_LOCK_BUSY) {
if (lockres->l_flags & USER_LOCK_IN_CANCEL) {
+ mlog(ML_BASTS, "lockres %.*s USER_LOCK_IN_CANCEL\n",
+ lockres->l_namelen, lockres->l_name);
spin_unlock(&lockres->l_lock);
goto drop_ref;
}
@@ -322,32 +345,31 @@ static void user_dlm_unblock_lock(struct work_struct *work)
lockres->l_flags |= USER_LOCK_IN_CANCEL;
spin_unlock(&lockres->l_lock);
- status = dlmunlock(dlm,
- &lockres->l_lksb,
- LKM_CANCEL,
- user_unlock_ast,
- lockres);
- if (status != DLM_NORMAL)
- user_log_dlm_error("dlmunlock", status, lockres);
+ status = ocfs2_dlm_unlock(conn, &lockres->l_lksb,
+ DLM_LKF_CANCEL);
+ if (status)
+ user_log_dlm_error("ocfs2_dlm_unlock", status, lockres);
goto drop_ref;
}
/* If there are still incompat holders, we can exit safely
* without worrying about re-queueing this lock as that will
* happen on the last call to user_cluster_unlock. */
- if ((lockres->l_blocking == LKM_EXMODE)
+ if ((lockres->l_blocking == DLM_LOCK_EX)
&& (lockres->l_ex_holders || lockres->l_ro_holders)) {
spin_unlock(&lockres->l_lock);
- mlog(0, "can't downconvert for ex: ro = %u, ex = %u\n",
- lockres->l_ro_holders, lockres->l_ex_holders);
+ mlog(ML_BASTS, "lockres %.*s, EX/PR Holders %u,%u\n",
+ lockres->l_namelen, lockres->l_name,
+ lockres->l_ex_holders, lockres->l_ro_holders);
goto drop_ref;
}
- if ((lockres->l_blocking == LKM_PRMODE)
+ if ((lockres->l_blocking == DLM_LOCK_PR)
&& lockres->l_ex_holders) {
spin_unlock(&lockres->l_lock);
- mlog(0, "can't downconvert for pr: ex = %u\n",
- lockres->l_ex_holders);
+ mlog(ML_BASTS, "lockres %.*s, EX Holders %u\n",
+ lockres->l_namelen, lockres->l_name,
+ lockres->l_ex_holders);
goto drop_ref;
}
@@ -355,22 +377,17 @@ static void user_dlm_unblock_lock(struct work_struct *work)
new_level = user_highest_compat_lock_level(lockres->l_blocking);
lockres->l_requested = new_level;
lockres->l_flags |= USER_LOCK_BUSY;
- mlog(0, "Downconvert lock from %d to %d\n",
- lockres->l_level, new_level);
+ mlog(ML_BASTS, "lockres %.*s, downconvert %d => %d\n",
+ lockres->l_namelen, lockres->l_name, lockres->l_level, new_level);
spin_unlock(&lockres->l_lock);
/* need lock downconvert request now... */
- status = dlmlock(dlm,
- new_level,
- &lockres->l_lksb,
- LKM_CONVERT|LKM_VALBLK,
- lockres->l_name,
- lockres->l_namelen,
- user_ast,
- lockres,
- user_bast);
- if (status != DLM_NORMAL) {
- user_log_dlm_error("dlmlock", status, lockres);
+ status = ocfs2_dlm_lock(conn, new_level, &lockres->l_lksb,
+ DLM_LKF_CONVERT|DLM_LKF_VALBLK,
+ lockres->l_name,
+ lockres->l_namelen);
+ if (status) {
+ user_log_dlm_error("ocfs2_dlm_lock", status, lockres);
user_recover_from_dlm_error(lockres);
}
@@ -382,10 +399,10 @@ static inline void user_dlm_inc_holders(struct user_lock_res *lockres,
int level)
{
switch(level) {
- case LKM_EXMODE:
+ case DLM_LOCK_EX:
lockres->l_ex_holders++;
break;
- case LKM_PRMODE:
+ case DLM_LOCK_PR:
lockres->l_ro_holders++;
break;
default:
@@ -410,20 +427,19 @@ int user_dlm_cluster_lock(struct user_lock_res *lockres,
int lkm_flags)
{
int status, local_flags;
- struct dlm_ctxt *dlm = dlm_ctxt_from_user_lockres(lockres);
+ struct ocfs2_cluster_connection *conn =
+ cluster_connection_from_user_lockres(lockres);
- if (level != LKM_EXMODE &&
- level != LKM_PRMODE) {
+ if (level != DLM_LOCK_EX &&
+ level != DLM_LOCK_PR) {
mlog(ML_ERROR, "lockres %.*s: invalid request!\n",
lockres->l_namelen, lockres->l_name);
status = -EINVAL;
goto bail;
}
- mlog(0, "lockres %.*s: asking for %s lock, passed flags = 0x%x\n",
- lockres->l_namelen, lockres->l_name,
- (level == LKM_EXMODE) ? "LKM_EXMODE" : "LKM_PRMODE",
- lkm_flags);
+ mlog(ML_BASTS, "lockres %.*s, level %d, flags = 0x%x\n",
+ lockres->l_namelen, lockres->l_name, level, lkm_flags);
again:
if (signal_pending(current)) {
@@ -457,35 +473,26 @@ again:
}
if (level > lockres->l_level) {
- local_flags = lkm_flags | LKM_VALBLK;
- if (lockres->l_level != LKM_IVMODE)
- local_flags |= LKM_CONVERT;
+ local_flags = lkm_flags | DLM_LKF_VALBLK;
+ if (lockres->l_level != DLM_LOCK_IV)
+ local_flags |= DLM_LKF_CONVERT;
lockres->l_requested = level;
lockres->l_flags |= USER_LOCK_BUSY;
spin_unlock(&lockres->l_lock);
- BUG_ON(level == LKM_IVMODE);
- BUG_ON(level == LKM_NLMODE);
+ BUG_ON(level == DLM_LOCK_IV);
+ BUG_ON(level == DLM_LOCK_NL);
/* call dlm_lock to upgrade lock now */
- status = dlmlock(dlm,
- level,
- &lockres->l_lksb,
- local_flags,
- lockres->l_name,
- lockres->l_namelen,
- user_ast,
- lockres,
- user_bast);
- if (status != DLM_NORMAL) {
- if ((lkm_flags & LKM_NOQUEUE) &&
- (status == DLM_NOTQUEUED))
- status = -EAGAIN;
- else {
- user_log_dlm_error("dlmlock", status, lockres);
- status = -EINVAL;
- }
+ status = ocfs2_dlm_lock(conn, level, &lockres->l_lksb,
+ local_flags, lockres->l_name,
+ lockres->l_namelen);
+ if (status) {
+ if ((lkm_flags & DLM_LKF_NOQUEUE) &&
+ (status != -EAGAIN))
+ user_log_dlm_error("ocfs2_dlm_lock",
+ status, lockres);
user_recover_from_dlm_error(lockres);
goto bail;
}
@@ -506,11 +513,11 @@ static inline void user_dlm_dec_holders(struct user_lock_res *lockres,
int level)
{
switch(level) {
- case LKM_EXMODE:
+ case DLM_LOCK_EX:
BUG_ON(!lockres->l_ex_holders);
lockres->l_ex_holders--;
break;
- case LKM_PRMODE:
+ case DLM_LOCK_PR:
BUG_ON(!lockres->l_ro_holders);
lockres->l_ro_holders--;
break;
@@ -522,8 +529,8 @@ static inline void user_dlm_dec_holders(struct user_lock_res *lockres,
void user_dlm_cluster_unlock(struct user_lock_res *lockres,
int level)
{
- if (level != LKM_EXMODE &&
- level != LKM_PRMODE) {
+ if (level != DLM_LOCK_EX &&
+ level != DLM_LOCK_PR) {
mlog(ML_ERROR, "lockres %.*s: invalid request!\n",
lockres->l_namelen, lockres->l_name);
return;
@@ -540,33 +547,40 @@ void user_dlm_write_lvb(struct inode *inode,
unsigned int len)
{
struct user_lock_res *lockres = &DLMFS_I(inode)->ip_lockres;
- char *lvb = lockres->l_lksb.lvb;
+ char *lvb;
BUG_ON(len > DLM_LVB_LEN);
spin_lock(&lockres->l_lock);
- BUG_ON(lockres->l_level < LKM_EXMODE);
+ BUG_ON(lockres->l_level < DLM_LOCK_EX);
+ lvb = ocfs2_dlm_lvb(&lockres->l_lksb);
memcpy(lvb, val, len);
spin_unlock(&lockres->l_lock);
}
-void user_dlm_read_lvb(struct inode *inode,
- char *val,
- unsigned int len)
+ssize_t user_dlm_read_lvb(struct inode *inode,
+ char *val,
+ unsigned int len)
{
struct user_lock_res *lockres = &DLMFS_I(inode)->ip_lockres;
- char *lvb = lockres->l_lksb.lvb;
+ char *lvb;
+ ssize_t ret = len;
BUG_ON(len > DLM_LVB_LEN);
spin_lock(&lockres->l_lock);
- BUG_ON(lockres->l_level < LKM_PRMODE);
- memcpy(val, lvb, len);
+ BUG_ON(lockres->l_level < DLM_LOCK_PR);
+ if (ocfs2_dlm_lvb_valid(&lockres->l_lksb)) {
+ lvb = ocfs2_dlm_lvb(&lockres->l_lksb);
+ memcpy(val, lvb, len);
+ } else
+ ret = 0;
spin_unlock(&lockres->l_lock);
+ return ret;
}
void user_dlm_lock_res_init(struct user_lock_res *lockres,
@@ -576,9 +590,9 @@ void user_dlm_lock_res_init(struct user_lock_res *lockres,
spin_lock_init(&lockres->l_lock);
init_waitqueue_head(&lockres->l_event);
- lockres->l_level = LKM_IVMODE;
- lockres->l_requested = LKM_IVMODE;
- lockres->l_blocking = LKM_IVMODE;
+ lockres->l_level = DLM_LOCK_IV;
+ lockres->l_requested = DLM_LOCK_IV;
+ lockres->l_blocking = DLM_LOCK_IV;
/* should have been checked before getting here. */
BUG_ON(dentry->d_name.len >= USER_DLM_LOCK_ID_MAX_LEN);
@@ -592,9 +606,10 @@ void user_dlm_lock_res_init(struct user_lock_res *lockres,
int user_dlm_destroy_lock(struct user_lock_res *lockres)
{
int status = -EBUSY;
- struct dlm_ctxt *dlm = dlm_ctxt_from_user_lockres(lockres);
+ struct ocfs2_cluster_connection *conn =
+ cluster_connection_from_user_lockres(lockres);
- mlog(0, "asked to destroy %.*s\n", lockres->l_namelen, lockres->l_name);
+ mlog(ML_BASTS, "lockres %.*s\n", lockres->l_namelen, lockres->l_name);
spin_lock(&lockres->l_lock);
if (lockres->l_flags & USER_LOCK_IN_TEARDOWN) {
@@ -627,14 +642,9 @@ int user_dlm_destroy_lock(struct user_lock_res *lockres)
lockres->l_flags |= USER_LOCK_BUSY;
spin_unlock(&lockres->l_lock);
- status = dlmunlock(dlm,
- &lockres->l_lksb,
- LKM_VALBLK,
- user_unlock_ast,
- lockres);
- if (status != DLM_NORMAL) {
- user_log_dlm_error("dlmunlock", status, lockres);
- status = -EINVAL;
+ status = ocfs2_dlm_unlock(conn, &lockres->l_lksb, DLM_LKF_VALBLK);
+ if (status) {
+ user_log_dlm_error("ocfs2_dlm_unlock", status, lockres);
goto bail;
}
@@ -645,32 +655,34 @@ bail:
return status;
}
-struct dlm_ctxt *user_dlm_register_context(struct qstr *name,
- struct dlm_protocol_version *proto)
+static void user_dlm_recovery_handler_noop(int node_num,
+ void *recovery_data)
{
- struct dlm_ctxt *dlm;
- u32 dlm_key;
- char *domain;
-
- domain = kmalloc(name->len + 1, GFP_NOFS);
- if (!domain) {
- mlog_errno(-ENOMEM);
- return ERR_PTR(-ENOMEM);
- }
+ /* We ignore recovery events */
+ return;
+}
- dlm_key = crc32_le(0, name->name, name->len);
+void user_dlm_set_locking_protocol(void)
+{
+ ocfs2_stack_glue_set_max_proto_version(&user_dlm_lproto.lp_max_version);
+}
- snprintf(domain, name->len + 1, "%.*s", name->len, name->name);
+struct ocfs2_cluster_connection *user_dlm_register(struct qstr *name)
+{
+ int rc;
+ struct ocfs2_cluster_connection *conn;
- dlm = dlm_register_domain(domain, dlm_key, proto);
- if (IS_ERR(dlm))
- mlog_errno(PTR_ERR(dlm));
+ rc = ocfs2_cluster_connect_agnostic(name->name, name->len,
+ &user_dlm_lproto,
+ user_dlm_recovery_handler_noop,
+ NULL, &conn);
+ if (rc)
+ mlog_errno(rc);
- kfree(domain);
- return dlm;
+ return rc ? ERR_PTR(rc) : conn;
}
-void user_dlm_unregister_context(struct dlm_ctxt *dlm)
+void user_dlm_unregister(struct ocfs2_cluster_connection *conn)
{
- dlm_unregister_domain(dlm);
+ ocfs2_cluster_disconnect(conn, 0);
}
diff --git a/fs/ocfs2/dlm/userdlm.h b/fs/ocfs2/dlmfs/userdlm.h
index 0c3cc03c61fa..3b42d79531d7 100644
--- a/fs/ocfs2/dlm/userdlm.h
+++ b/fs/ocfs2/dlmfs/userdlm.h
@@ -57,7 +57,7 @@ struct user_lock_res {
int l_level;
unsigned int l_ro_holders;
unsigned int l_ex_holders;
- struct dlm_lockstatus l_lksb;
+ struct ocfs2_dlm_lksb l_lksb;
int l_requested;
int l_blocking;
@@ -80,15 +80,15 @@ void user_dlm_cluster_unlock(struct user_lock_res *lockres,
void user_dlm_write_lvb(struct inode *inode,
const char *val,
unsigned int len);
-void user_dlm_read_lvb(struct inode *inode,
- char *val,
- unsigned int len);
-struct dlm_ctxt *user_dlm_register_context(struct qstr *name,
- struct dlm_protocol_version *proto);
-void user_dlm_unregister_context(struct dlm_ctxt *dlm);
+ssize_t user_dlm_read_lvb(struct inode *inode,
+ char *val,
+ unsigned int len);
+struct ocfs2_cluster_connection *user_dlm_register(struct qstr *name);
+void user_dlm_unregister(struct ocfs2_cluster_connection *conn);
+void user_dlm_set_locking_protocol(void);
struct dlmfs_inode_private {
- struct dlm_ctxt *ip_dlm;
+ struct ocfs2_cluster_connection *ip_conn;
struct user_lock_res ip_lockres; /* unused for directories. */
struct inode *ip_parent;
diff --git a/fs/ocfs2/dlmglue.c b/fs/ocfs2/dlmglue.c
index e044019cb3b1..8298608d4165 100644
--- a/fs/ocfs2/dlmglue.c
+++ b/fs/ocfs2/dlmglue.c
@@ -297,6 +297,11 @@ static inline int ocfs2_is_inode_lock(struct ocfs2_lock_res *lockres)
lockres->l_type == OCFS2_LOCK_TYPE_OPEN;
}
+static inline struct ocfs2_lock_res *ocfs2_lksb_to_lock_res(struct ocfs2_dlm_lksb *lksb)
+{
+ return container_of(lksb, struct ocfs2_lock_res, l_lksb);
+}
+
static inline struct inode *ocfs2_lock_res_inode(struct ocfs2_lock_res *lockres)
{
BUG_ON(!ocfs2_is_inode_lock(lockres));
@@ -927,6 +932,10 @@ static int ocfs2_generic_handle_bast(struct ocfs2_lock_res *lockres,
lockres->l_blocking = level;
}
+ mlog(ML_BASTS, "lockres %s, block %d, level %d, l_block %d, dwn %d\n",
+ lockres->l_name, level, lockres->l_level, lockres->l_blocking,
+ needs_downconvert);
+
if (needs_downconvert)
lockres_or_flags(lockres, OCFS2_LOCK_BLOCKED);
@@ -1040,18 +1049,17 @@ static unsigned int lockres_set_pending(struct ocfs2_lock_res *lockres)
return lockres->l_pending_gen;
}
-
-static void ocfs2_blocking_ast(void *opaque, int level)
+static void ocfs2_blocking_ast(struct ocfs2_dlm_lksb *lksb, int level)
{
- struct ocfs2_lock_res *lockres = opaque;
+ struct ocfs2_lock_res *lockres = ocfs2_lksb_to_lock_res(lksb);
struct ocfs2_super *osb = ocfs2_get_lockres_osb(lockres);
int needs_downconvert;
unsigned long flags;
BUG_ON(level <= DLM_LOCK_NL);
- mlog(0, "BAST fired for lockres %s, blocking %d, level %d type %s\n",
- lockres->l_name, level, lockres->l_level,
+ mlog(ML_BASTS, "BAST fired for lockres %s, blocking %d, level %d, "
+ "type %s\n", lockres->l_name, level, lockres->l_level,
ocfs2_lock_type_string(lockres->l_type));
/*
@@ -1072,9 +1080,9 @@ static void ocfs2_blocking_ast(void *opaque, int level)
ocfs2_wake_downconvert_thread(osb);
}
-static void ocfs2_locking_ast(void *opaque)
+static void ocfs2_locking_ast(struct ocfs2_dlm_lksb *lksb)
{
- struct ocfs2_lock_res *lockres = opaque;
+ struct ocfs2_lock_res *lockres = ocfs2_lksb_to_lock_res(lksb);
struct ocfs2_super *osb = ocfs2_get_lockres_osb(lockres);
unsigned long flags;
int status;
@@ -1095,6 +1103,10 @@ static void ocfs2_locking_ast(void *opaque)
return;
}
+ mlog(ML_BASTS, "AST fired for lockres %s, action %d, unlock %d, "
+ "level %d => %d\n", lockres->l_name, lockres->l_action,
+ lockres->l_unlock_action, lockres->l_level, lockres->l_requested);
+
switch(lockres->l_action) {
case OCFS2_AST_ATTACH:
ocfs2_generic_handle_attach_action(lockres);
@@ -1107,8 +1119,8 @@ static void ocfs2_locking_ast(void *opaque)
ocfs2_generic_handle_downconvert_action(lockres);
break;
default:
- mlog(ML_ERROR, "lockres %s: ast fired with invalid action: %u "
- "lockres flags = 0x%lx, unlock action: %u\n",
+ mlog(ML_ERROR, "lockres %s: AST fired with invalid action: %u, "
+ "flags 0x%lx, unlock: %u\n",
lockres->l_name, lockres->l_action, lockres->l_flags,
lockres->l_unlock_action);
BUG();
@@ -1134,6 +1146,88 @@ out:
spin_unlock_irqrestore(&lockres->l_lock, flags);
}
+static void ocfs2_unlock_ast(struct ocfs2_dlm_lksb *lksb, int error)
+{
+ struct ocfs2_lock_res *lockres = ocfs2_lksb_to_lock_res(lksb);
+ unsigned long flags;
+
+ mlog_entry_void();
+
+ mlog(ML_BASTS, "UNLOCK AST fired for lockres %s, action = %d\n",
+ lockres->l_name, lockres->l_unlock_action);
+
+ spin_lock_irqsave(&lockres->l_lock, flags);
+ if (error) {
+ mlog(ML_ERROR, "Dlm passes error %d for lock %s, "
+ "unlock_action %d\n", error, lockres->l_name,
+ lockres->l_unlock_action);
+ spin_unlock_irqrestore(&lockres->l_lock, flags);
+ mlog_exit_void();
+ return;
+ }
+
+ switch(lockres->l_unlock_action) {
+ case OCFS2_UNLOCK_CANCEL_CONVERT:
+ mlog(0, "Cancel convert success for %s\n", lockres->l_name);
+ lockres->l_action = OCFS2_AST_INVALID;
+ /* Downconvert thread may have requeued this lock, we
+ * need to wake it. */
+ if (lockres->l_flags & OCFS2_LOCK_BLOCKED)
+ ocfs2_wake_downconvert_thread(ocfs2_get_lockres_osb(lockres));
+ break;
+ case OCFS2_UNLOCK_DROP_LOCK:
+ lockres->l_level = DLM_LOCK_IV;
+ break;
+ default:
+ BUG();
+ }
+
+ lockres_clear_flags(lockres, OCFS2_LOCK_BUSY);
+ lockres->l_unlock_action = OCFS2_UNLOCK_INVALID;
+ wake_up(&lockres->l_event);
+ spin_unlock_irqrestore(&lockres->l_lock, flags);
+
+ mlog_exit_void();
+}
+
+/*
+ * This is the filesystem locking protocol. It provides the lock handling
+ * hooks for the underlying DLM. It has a maximum version number.
+ * The version number allows interoperability with systems running at
+ * the same major number and an equal or smaller minor number.
+ *
+ * Whenever the filesystem does new things with locks (adds or removes a
+ * lock, orders them differently, does different things underneath a lock),
+ * the version must be changed. The protocol is negotiated when joining
+ * the dlm domain. A node may join the domain if its major version is
+ * identical to all other nodes and its minor version is greater than
+ * or equal to all other nodes. When its minor version is greater than
+ * the other nodes, it will run at the minor version specified by the
+ * other nodes.
+ *
+ * If a locking change is made that will not be compatible with older
+ * versions, the major number must be increased and the minor version set
+ * to zero. If a change merely adds a behavior that can be disabled when
+ * speaking to older versions, the minor version must be increased. If a
+ * change adds a fully backwards compatible change (eg, LVB changes that
+ * are just ignored by older versions), the version does not need to be
+ * updated.
+ */
+static struct ocfs2_locking_protocol lproto = {
+ .lp_max_version = {
+ .pv_major = OCFS2_LOCKING_PROTOCOL_MAJOR,
+ .pv_minor = OCFS2_LOCKING_PROTOCOL_MINOR,
+ },
+ .lp_lock_ast = ocfs2_locking_ast,
+ .lp_blocking_ast = ocfs2_blocking_ast,
+ .lp_unlock_ast = ocfs2_unlock_ast,
+};
+
+void ocfs2_set_locking_protocol(void)
+{
+ ocfs2_stack_glue_set_max_proto_version(&lproto.lp_max_version);
+}
+
static inline void ocfs2_recover_from_dlm_error(struct ocfs2_lock_res *lockres,
int convert)
{
@@ -1189,8 +1283,7 @@ static int ocfs2_lock_create(struct ocfs2_super *osb,
&lockres->l_lksb,
dlm_flags,
lockres->l_name,
- OCFS2_LOCK_ID_MAX_LEN - 1,
- lockres);
+ OCFS2_LOCK_ID_MAX_LEN - 1);
lockres_clear_pending(lockres, gen, osb);
if (ret) {
ocfs2_log_dlm_error("ocfs2_dlm_lock", ret, lockres);
@@ -1412,7 +1505,7 @@ again:
BUG_ON(level == DLM_LOCK_IV);
BUG_ON(level == DLM_LOCK_NL);
- mlog(0, "lock %s, convert from %d to level = %d\n",
+ mlog(ML_BASTS, "lockres %s, convert from %d to %d\n",
lockres->l_name, lockres->l_level, level);
/* call dlm_lock to upgrade lock now */
@@ -1421,8 +1514,7 @@ again:
&lockres->l_lksb,
lkm_flags,
lockres->l_name,
- OCFS2_LOCK_ID_MAX_LEN - 1,
- lockres);
+ OCFS2_LOCK_ID_MAX_LEN - 1);
lockres_clear_pending(lockres, gen, osb);
if (ret) {
if (!(lkm_flags & DLM_LKF_NOQUEUE) ||
@@ -1859,8 +1951,7 @@ int ocfs2_file_lock(struct file *file, int ex, int trylock)
spin_unlock_irqrestore(&lockres->l_lock, flags);
ret = ocfs2_dlm_lock(osb->cconn, level, &lockres->l_lksb, lkm_flags,
- lockres->l_name, OCFS2_LOCK_ID_MAX_LEN - 1,
- lockres);
+ lockres->l_name, OCFS2_LOCK_ID_MAX_LEN - 1);
if (ret) {
if (!trylock || (ret != -EAGAIN)) {
ocfs2_log_dlm_error("ocfs2_dlm_lock", ret, lockres);
@@ -2989,7 +3080,7 @@ int ocfs2_dlm_init(struct ocfs2_super *osb)
status = ocfs2_cluster_connect(osb->osb_cluster_stack,
osb->uuid_str,
strlen(osb->uuid_str),
- ocfs2_do_node_down, osb,
+ &lproto, ocfs2_do_node_down, osb,
&conn);
if (status) {
mlog_errno(status);
@@ -3056,50 +3147,6 @@ void ocfs2_dlm_shutdown(struct ocfs2_super *osb,
mlog_exit_void();
}
-static void ocfs2_unlock_ast(void *opaque, int error)
-{
- struct ocfs2_lock_res *lockres = opaque;
- unsigned long flags;
-
- mlog_entry_void();
-
- mlog(0, "UNLOCK AST called on lock %s, action = %d\n", lockres->l_name,
- lockres->l_unlock_action);
-
- spin_lock_irqsave(&lockres->l_lock, flags);
- if (error) {
- mlog(ML_ERROR, "Dlm passes error %d for lock %s, "
- "unlock_action %d\n", error, lockres->l_name,
- lockres->l_unlock_action);
- spin_unlock_irqrestore(&lockres->l_lock, flags);
- mlog_exit_void();
- return;
- }
-
- switch(lockres->l_unlock_action) {
- case OCFS2_UNLOCK_CANCEL_CONVERT:
- mlog(0, "Cancel convert success for %s\n", lockres->l_name);
- lockres->l_action = OCFS2_AST_INVALID;
- /* Downconvert thread may have requeued this lock, we
- * need to wake it. */
- if (lockres->l_flags & OCFS2_LOCK_BLOCKED)
- ocfs2_wake_downconvert_thread(ocfs2_get_lockres_osb(lockres));
- break;
- case OCFS2_UNLOCK_DROP_LOCK:
- lockres->l_level = DLM_LOCK_IV;
- break;
- default:
- BUG();
- }
-
- lockres_clear_flags(lockres, OCFS2_LOCK_BUSY);
- lockres->l_unlock_action = OCFS2_UNLOCK_INVALID;
- wake_up(&lockres->l_event);
- spin_unlock_irqrestore(&lockres->l_lock, flags);
-
- mlog_exit_void();
-}
-
static int ocfs2_drop_lock(struct ocfs2_super *osb,
struct ocfs2_lock_res *lockres)
{
@@ -3167,8 +3214,7 @@ static int ocfs2_drop_lock(struct ocfs2_super *osb,
mlog(0, "lock %s\n", lockres->l_name);
- ret = ocfs2_dlm_unlock(osb->cconn, &lockres->l_lksb, lkm_flags,
- lockres);
+ ret = ocfs2_dlm_unlock(osb->cconn, &lockres->l_lksb, lkm_flags);
if (ret) {
ocfs2_log_dlm_error("ocfs2_dlm_unlock", ret, lockres);
mlog(ML_ERROR, "lockres flags: %lu\n", lockres->l_flags);
@@ -3276,13 +3322,20 @@ static unsigned int ocfs2_prepare_downconvert(struct ocfs2_lock_res *lockres,
BUG_ON(lockres->l_blocking <= DLM_LOCK_NL);
if (lockres->l_level <= new_level) {
- mlog(ML_ERROR, "lockres->l_level (%d) <= new_level (%d)\n",
- lockres->l_level, new_level);
+ mlog(ML_ERROR, "lockres %s, lvl %d <= %d, blcklst %d, mask %d, "
+ "type %d, flags 0x%lx, hold %d %d, act %d %d, req %d, "
+ "block %d, pgen %d\n", lockres->l_name, lockres->l_level,
+ new_level, list_empty(&lockres->l_blocked_list),
+ list_empty(&lockres->l_mask_waiters), lockres->l_type,
+ lockres->l_flags, lockres->l_ro_holders,
+ lockres->l_ex_holders, lockres->l_action,
+ lockres->l_unlock_action, lockres->l_requested,
+ lockres->l_blocking, lockres->l_pending_gen);
BUG();
}
- mlog(0, "lock %s, new_level = %d, l_blocking = %d\n",
- lockres->l_name, new_level, lockres->l_blocking);
+ mlog(ML_BASTS, "lockres %s, level %d => %d, blocking %d\n",
+ lockres->l_name, lockres->l_level, new_level, lockres->l_blocking);
lockres->l_action = OCFS2_AST_DOWNCONVERT;
lockres->l_requested = new_level;
@@ -3301,6 +3354,9 @@ static int ocfs2_downconvert_lock(struct ocfs2_super *osb,
mlog_entry_void();
+ mlog(ML_BASTS, "lockres %s, level %d => %d\n", lockres->l_name,
+ lockres->l_level, new_level);
+
if (lvb)
dlm_flags |= DLM_LKF_VALBLK;
@@ -3309,8 +3365,7 @@ static int ocfs2_downconvert_lock(struct ocfs2_super *osb,
&lockres->l_lksb,
dlm_flags,
lockres->l_name,
- OCFS2_LOCK_ID_MAX_LEN - 1,
- lockres);
+ OCFS2_LOCK_ID_MAX_LEN - 1);
lockres_clear_pending(lockres, generation, osb);
if (ret) {
ocfs2_log_dlm_error("ocfs2_dlm_lock", ret, lockres);
@@ -3331,14 +3386,12 @@ static int ocfs2_prepare_cancel_convert(struct ocfs2_super *osb,
assert_spin_locked(&lockres->l_lock);
mlog_entry_void();
- mlog(0, "lock %s\n", lockres->l_name);
if (lockres->l_unlock_action == OCFS2_UNLOCK_CANCEL_CONVERT) {
/* If we're already trying to cancel a lock conversion
* then just drop the spinlock and allow the caller to
* requeue this lock. */
-
- mlog(0, "Lockres %s, skip convert\n", lockres->l_name);
+ mlog(ML_BASTS, "lockres %s, skip convert\n", lockres->l_name);
return 0;
}
@@ -3353,6 +3406,8 @@ static int ocfs2_prepare_cancel_convert(struct ocfs2_super *osb,
"lock %s, invalid flags: 0x%lx\n",
lockres->l_name, lockres->l_flags);
+ mlog(ML_BASTS, "lockres %s\n", lockres->l_name);
+
return 1;
}
@@ -3362,16 +3417,15 @@ static int ocfs2_cancel_convert(struct ocfs2_super *osb,
int ret;
mlog_entry_void();
- mlog(0, "lock %s\n", lockres->l_name);
ret = ocfs2_dlm_unlock(osb->cconn, &lockres->l_lksb,
- DLM_LKF_CANCEL, lockres);
+ DLM_LKF_CANCEL);
if (ret) {
ocfs2_log_dlm_error("ocfs2_dlm_unlock", ret, lockres);
ocfs2_recover_from_dlm_error(lockres, 0);
}
- mlog(0, "lock %s return from ocfs2_dlm_unlock\n", lockres->l_name);
+ mlog(ML_BASTS, "lockres %s\n", lockres->l_name);
mlog_exit(ret);
return ret;
@@ -3428,8 +3482,11 @@ recheck:
* at the same time they set OCFS2_DLM_BUSY. They must
* clear OCFS2_DLM_PENDING after dlm_lock() returns.
*/
- if (lockres->l_flags & OCFS2_LOCK_PENDING)
+ if (lockres->l_flags & OCFS2_LOCK_PENDING) {
+ mlog(ML_BASTS, "lockres %s, ReQ: Pending\n",
+ lockres->l_name);
goto leave_requeue;
+ }
ctl->requeue = 1;
ret = ocfs2_prepare_cancel_convert(osb, lockres);
@@ -3461,6 +3518,7 @@ recheck:
*/
if (lockres->l_level == DLM_LOCK_NL) {
BUG_ON(lockres->l_ex_holders || lockres->l_ro_holders);
+ mlog(ML_BASTS, "lockres %s, Aborting dc\n", lockres->l_name);
lockres->l_blocking = DLM_LOCK_NL;
lockres_clear_flags(lockres, OCFS2_LOCK_BLOCKED);
spin_unlock_irqrestore(&lockres->l_lock, flags);
@@ -3470,28 +3528,41 @@ recheck:
/* if we're blocking an exclusive and we have *any* holders,
* then requeue. */
if ((lockres->l_blocking == DLM_LOCK_EX)
- && (lockres->l_ex_holders || lockres->l_ro_holders))
+ && (lockres->l_ex_holders || lockres->l_ro_holders)) {
+ mlog(ML_BASTS, "lockres %s, ReQ: EX/PR Holders %u,%u\n",
+ lockres->l_name, lockres->l_ex_holders,
+ lockres->l_ro_holders);
goto leave_requeue;
+ }
/* If it's a PR we're blocking, then only
* requeue if we've got any EX holders */
if (lockres->l_blocking == DLM_LOCK_PR &&
- lockres->l_ex_holders)
+ lockres->l_ex_holders) {
+ mlog(ML_BASTS, "lockres %s, ReQ: EX Holders %u\n",
+ lockres->l_name, lockres->l_ex_holders);
goto leave_requeue;
+ }
/*
* Can we get a lock in this state if the holder counts are
* zero? The meta data unblock code used to check this.
*/
if ((lockres->l_ops->flags & LOCK_TYPE_REQUIRES_REFRESH)
- && (lockres->l_flags & OCFS2_LOCK_REFRESHING))
+ && (lockres->l_flags & OCFS2_LOCK_REFRESHING)) {
+ mlog(ML_BASTS, "lockres %s, ReQ: Lock Refreshing\n",
+ lockres->l_name);
goto leave_requeue;
+ }
new_level = ocfs2_highest_compat_lock_level(lockres->l_blocking);
if (lockres->l_ops->check_downconvert
- && !lockres->l_ops->check_downconvert(lockres, new_level))
+ && !lockres->l_ops->check_downconvert(lockres, new_level)) {
+ mlog(ML_BASTS, "lockres %s, ReQ: Checkpointing\n",
+ lockres->l_name);
goto leave_requeue;
+ }
/* If we get here, then we know that there are no more
* incompatible holders (and anyone asking for an incompatible
@@ -3509,13 +3580,19 @@ recheck:
ctl->unblock_action = lockres->l_ops->downconvert_worker(lockres, blocking);
- if (ctl->unblock_action == UNBLOCK_STOP_POST)
+ if (ctl->unblock_action == UNBLOCK_STOP_POST) {
+ mlog(ML_BASTS, "lockres %s, UNBLOCK_STOP_POST\n",
+ lockres->l_name);
goto leave;
+ }
spin_lock_irqsave(&lockres->l_lock, flags);
if ((blocking != lockres->l_blocking) || (level != lockres->l_level)) {
/* If this changed underneath us, then we can't drop
* it just yet. */
+ mlog(ML_BASTS, "lockres %s, block=%d:%d, level=%d:%d, "
+ "Recheck\n", lockres->l_name, blocking,
+ lockres->l_blocking, level, lockres->l_level);
goto recheck;
}
@@ -3910,45 +3987,6 @@ void ocfs2_refcount_unlock(struct ocfs2_refcount_tree *ref_tree, int ex)
ocfs2_cluster_unlock(osb, lockres, level);
}
-/*
- * This is the filesystem locking protocol. It provides the lock handling
- * hooks for the underlying DLM. It has a maximum version number.
- * The version number allows interoperability with systems running at
- * the same major number and an equal or smaller minor number.
- *
- * Whenever the filesystem does new things with locks (adds or removes a
- * lock, orders them differently, does different things underneath a lock),
- * the version must be changed. The protocol is negotiated when joining
- * the dlm domain. A node may join the domain if its major version is
- * identical to all other nodes and its minor version is greater than
- * or equal to all other nodes. When its minor version is greater than
- * the other nodes, it will run at the minor version specified by the
- * other nodes.
- *
- * If a locking change is made that will not be compatible with older
- * versions, the major number must be increased and the minor version set
- * to zero. If a change merely adds a behavior that can be disabled when
- * speaking to older versions, the minor version must be increased. If a
- * change adds a fully backwards compatible change (eg, LVB changes that
- * are just ignored by older versions), the version does not need to be
- * updated.
- */
-static struct ocfs2_locking_protocol lproto = {
- .lp_max_version = {
- .pv_major = OCFS2_LOCKING_PROTOCOL_MAJOR,
- .pv_minor = OCFS2_LOCKING_PROTOCOL_MINOR,
- },
- .lp_lock_ast = ocfs2_locking_ast,
- .lp_blocking_ast = ocfs2_blocking_ast,
- .lp_unlock_ast = ocfs2_unlock_ast,
-};
-
-void ocfs2_set_locking_protocol(void)
-{
- ocfs2_stack_glue_set_locking_protocol(&lproto);
-}
-
-
static void ocfs2_process_blocked_lock(struct ocfs2_super *osb,
struct ocfs2_lock_res *lockres)
{
@@ -3965,7 +4003,7 @@ static void ocfs2_process_blocked_lock(struct ocfs2_super *osb,
BUG_ON(!lockres);
BUG_ON(!lockres->l_ops);
- mlog(0, "lockres %s blocked.\n", lockres->l_name);
+ mlog(ML_BASTS, "lockres %s blocked\n", lockres->l_name);
/* Detect whether a lock has been marked as going away while
* the downconvert thread was processing other things. A lock can
@@ -3988,7 +4026,7 @@ unqueue:
} else
ocfs2_schedule_blocked_lock(osb, lockres);
- mlog(0, "lockres %s, requeue = %s.\n", lockres->l_name,
+ mlog(ML_BASTS, "lockres %s, requeue = %s.\n", lockres->l_name,
ctl.requeue ? "yes" : "no");
spin_unlock_irqrestore(&lockres->l_lock, flags);
@@ -4010,7 +4048,7 @@ static void ocfs2_schedule_blocked_lock(struct ocfs2_super *osb,
/* Do not schedule a lock for downconvert when it's on
* the way to destruction - any nodes wanting access
* to the resource will get it soon. */
- mlog(0, "Lockres %s won't be scheduled: flags 0x%lx\n",
+ mlog(ML_BASTS, "lockres %s won't be scheduled: flags 0x%lx\n",
lockres->l_name, lockres->l_flags);
return;
}
diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c
index 558ce0312421..5b52547d6299 100644
--- a/fs/ocfs2/file.c
+++ b/fs/ocfs2/file.c
@@ -993,10 +993,9 @@ int ocfs2_setattr(struct dentry *dentry, struct iattr *attr)
}
if (size_change && attr->ia_size != i_size_read(inode)) {
- if (attr->ia_size > sb->s_maxbytes) {
- status = -EFBIG;
+ status = inode_newsize_ok(inode, attr->ia_size);
+ if (status)
goto bail_unlock;
- }
if (i_size_read(inode) > attr->ia_size) {
if (ocfs2_should_order_data(inode)) {
@@ -1836,6 +1835,8 @@ static int ocfs2_prepare_inode_for_write(struct dentry *dentry,
&meta_level);
if (has_refcount)
*has_refcount = 1;
+ if (direct_io)
+ *direct_io = 0;
}
if (ret < 0) {
@@ -1859,10 +1860,6 @@ static int ocfs2_prepare_inode_for_write(struct dentry *dentry,
break;
}
- if (has_refcount && *has_refcount == 1) {
- *direct_io = 0;
- break;
- }
/*
* Allowing concurrent direct writes means
* i_size changes wouldn't be synchronized, so
@@ -2043,7 +2040,7 @@ out_dio:
* async dio is going to do it in the future or an end_io after an
* error has already done it.
*/
- if (ret == -EIOCBQUEUED || !ocfs2_iocb_is_rw_locked(iocb)) {
+ if ((ret == -EIOCBQUEUED) || (!ocfs2_iocb_is_rw_locked(iocb))) {
rw_level = -1;
have_alloc_sem = 0;
}
diff --git a/fs/ocfs2/ioctl.h b/fs/ocfs2/ioctl.h
index cf9a5ee30fef..0cd5323bd3f0 100644
--- a/fs/ocfs2/ioctl.h
+++ b/fs/ocfs2/ioctl.h
@@ -7,10 +7,10 @@
*
*/
-#ifndef OCFS2_IOCTL_H
-#define OCFS2_IOCTL_H
+#ifndef OCFS2_IOCTL_PROTO_H
+#define OCFS2_IOCTL_PROTO_H
long ocfs2_ioctl(struct file *filp, unsigned int cmd, unsigned long arg);
long ocfs2_compat_ioctl(struct file *file, unsigned cmd, unsigned long arg);
-#endif /* OCFS2_IOCTL_H */
+#endif /* OCFS2_IOCTL_PROTO_H */
diff --git a/fs/ocfs2/localalloc.c b/fs/ocfs2/localalloc.c
index ac10f83edb95..ca992d91f511 100644
--- a/fs/ocfs2/localalloc.c
+++ b/fs/ocfs2/localalloc.c
@@ -476,7 +476,7 @@ out_mutex:
out:
if (!status)
- ocfs2_init_inode_steal_slot(osb);
+ ocfs2_init_steal_slots(osb);
mlog_exit(status);
return status;
}
diff --git a/fs/ocfs2/ocfs2.h b/fs/ocfs2/ocfs2.h
index 740f448041e2..1238b491db90 100644
--- a/fs/ocfs2/ocfs2.h
+++ b/fs/ocfs2/ocfs2.h
@@ -42,6 +42,7 @@
#include "ocfs2_fs.h"
#include "ocfs2_lockid.h"
+#include "ocfs2_ioctl.h"
/* For struct ocfs2_blockcheck_stats */
#include "blockcheck.h"
@@ -159,7 +160,7 @@ struct ocfs2_lock_res {
int l_level;
unsigned int l_ro_holders;
unsigned int l_ex_holders;
- union ocfs2_dlm_lksb l_lksb;
+ struct ocfs2_dlm_lksb l_lksb;
/* used from AST/BAST funcs. */
enum ocfs2_ast_action l_action;
@@ -305,7 +306,9 @@ struct ocfs2_super
u32 s_next_generation;
unsigned long osb_flags;
s16 s_inode_steal_slot;
+ s16 s_meta_steal_slot;
atomic_t s_num_inodes_stolen;
+ atomic_t s_num_meta_stolen;
unsigned long s_mount_opt;
unsigned int s_atime_quantum;
@@ -760,33 +763,6 @@ static inline unsigned int ocfs2_megabytes_to_clusters(struct super_block *sb,
return megs << (20 - OCFS2_SB(sb)->s_clustersize_bits);
}
-static inline void ocfs2_init_inode_steal_slot(struct ocfs2_super *osb)
-{
- spin_lock(&osb->osb_lock);
- osb->s_inode_steal_slot = OCFS2_INVALID_SLOT;
- spin_unlock(&osb->osb_lock);
- atomic_set(&osb->s_num_inodes_stolen, 0);
-}
-
-static inline void ocfs2_set_inode_steal_slot(struct ocfs2_super *osb,
- s16 slot)
-{
- spin_lock(&osb->osb_lock);
- osb->s_inode_steal_slot = slot;
- spin_unlock(&osb->osb_lock);
-}
-
-static inline s16 ocfs2_get_inode_steal_slot(struct ocfs2_super *osb)
-{
- s16 slot;
-
- spin_lock(&osb->osb_lock);
- slot = osb->s_inode_steal_slot;
- spin_unlock(&osb->osb_lock);
-
- return slot;
-}
-
#define ocfs2_set_bit ext2_set_bit
#define ocfs2_clear_bit ext2_clear_bit
#define ocfs2_test_bit ext2_test_bit
diff --git a/fs/ocfs2/ocfs2_fs.h b/fs/ocfs2/ocfs2_fs.h
index 7638a38c32bc..bb37218a7978 100644
--- a/fs/ocfs2/ocfs2_fs.h
+++ b/fs/ocfs2/ocfs2_fs.h
@@ -254,63 +254,6 @@
* refcount tree */
/*
- * ioctl commands
- */
-#define OCFS2_IOC_GETFLAGS _IOR('f', 1, long)
-#define OCFS2_IOC_SETFLAGS _IOW('f', 2, long)
-#define OCFS2_IOC32_GETFLAGS _IOR('f', 1, int)
-#define OCFS2_IOC32_SETFLAGS _IOW('f', 2, int)
-
-/*
- * Space reservation / allocation / free ioctls and argument structure
- * are designed to be compatible with XFS.
- *
- * ALLOCSP* and FREESP* are not and will never be supported, but are
- * included here for completeness.
- */
-struct ocfs2_space_resv {
- __s16 l_type;
- __s16 l_whence;
- __s64 l_start;
- __s64 l_len; /* len == 0 means until end of file */
- __s32 l_sysid;
- __u32 l_pid;
- __s32 l_pad[4]; /* reserve area */
-};
-
-#define OCFS2_IOC_ALLOCSP _IOW ('X', 10, struct ocfs2_space_resv)
-#define OCFS2_IOC_FREESP _IOW ('X', 11, struct ocfs2_space_resv)
-#define OCFS2_IOC_RESVSP _IOW ('X', 40, struct ocfs2_space_resv)
-#define OCFS2_IOC_UNRESVSP _IOW ('X', 41, struct ocfs2_space_resv)
-#define OCFS2_IOC_ALLOCSP64 _IOW ('X', 36, struct ocfs2_space_resv)
-#define OCFS2_IOC_FREESP64 _IOW ('X', 37, struct ocfs2_space_resv)
-#define OCFS2_IOC_RESVSP64 _IOW ('X', 42, struct ocfs2_space_resv)
-#define OCFS2_IOC_UNRESVSP64 _IOW ('X', 43, struct ocfs2_space_resv)
-
-/* Used to pass group descriptor data when online resize is done */
-struct ocfs2_new_group_input {
- __u64 group; /* Group descriptor's blkno. */
- __u32 clusters; /* Total number of clusters in this group */
- __u32 frees; /* Total free clusters in this group */
- __u16 chain; /* Chain for this group */
- __u16 reserved1;
- __u32 reserved2;
-};
-
-#define OCFS2_IOC_GROUP_EXTEND _IOW('o', 1, int)
-#define OCFS2_IOC_GROUP_ADD _IOW('o', 2,struct ocfs2_new_group_input)
-#define OCFS2_IOC_GROUP_ADD64 _IOW('o', 3,struct ocfs2_new_group_input)
-
-/* Used to pass 2 file names to reflink. */
-struct reflink_arguments {
- __u64 old_path;
- __u64 new_path;
- __u64 preserve;
-};
-#define OCFS2_IOC_REFLINK _IOW('o', 4, struct reflink_arguments)
-
-
-/*
* Journal Flags (ocfs2_dinode.id1.journal1.i_flags)
*/
#define OCFS2_JOURNAL_DIRTY_FL (0x00000001) /* Journal needs recovery */
diff --git a/fs/ocfs2/ocfs2_ioctl.h b/fs/ocfs2/ocfs2_ioctl.h
new file mode 100644
index 000000000000..2d3420af1a83
--- /dev/null
+++ b/fs/ocfs2/ocfs2_ioctl.h
@@ -0,0 +1,79 @@
+/* -*- mode: c; c-basic-offset: 8; -*-
+ * vim: noexpandtab sw=8 ts=8 sts=0:
+ *
+ * ocfs2_ioctl.h
+ *
+ * Defines OCFS2 ioctls.
+ *
+ * Copyright (C) 2010 Oracle. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public
+ * License, version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ */
+
+#ifndef OCFS2_IOCTL_H
+#define OCFS2_IOCTL_H
+
+/*
+ * ioctl commands
+ */
+#define OCFS2_IOC_GETFLAGS _IOR('f', 1, long)
+#define OCFS2_IOC_SETFLAGS _IOW('f', 2, long)
+#define OCFS2_IOC32_GETFLAGS _IOR('f', 1, int)
+#define OCFS2_IOC32_SETFLAGS _IOW('f', 2, int)
+
+/*
+ * Space reservation / allocation / free ioctls and argument structure
+ * are designed to be compatible with XFS.
+ *
+ * ALLOCSP* and FREESP* are not and will never be supported, but are
+ * included here for completeness.
+ */
+struct ocfs2_space_resv {
+ __s16 l_type;
+ __s16 l_whence;
+ __s64 l_start;
+ __s64 l_len; /* len == 0 means until end of file */
+ __s32 l_sysid;
+ __u32 l_pid;
+ __s32 l_pad[4]; /* reserve area */
+};
+
+#define OCFS2_IOC_ALLOCSP _IOW ('X', 10, struct ocfs2_space_resv)
+#define OCFS2_IOC_FREESP _IOW ('X', 11, struct ocfs2_space_resv)
+#define OCFS2_IOC_RESVSP _IOW ('X', 40, struct ocfs2_space_resv)
+#define OCFS2_IOC_UNRESVSP _IOW ('X', 41, struct ocfs2_space_resv)
+#define OCFS2_IOC_ALLOCSP64 _IOW ('X', 36, struct ocfs2_space_resv)
+#define OCFS2_IOC_FREESP64 _IOW ('X', 37, struct ocfs2_space_resv)
+#define OCFS2_IOC_RESVSP64 _IOW ('X', 42, struct ocfs2_space_resv)
+#define OCFS2_IOC_UNRESVSP64 _IOW ('X', 43, struct ocfs2_space_resv)
+
+/* Used to pass group descriptor data when online resize is done */
+struct ocfs2_new_group_input {
+ __u64 group; /* Group descriptor's blkno. */
+ __u32 clusters; /* Total number of clusters in this group */
+ __u32 frees; /* Total free clusters in this group */
+ __u16 chain; /* Chain for this group */
+ __u16 reserved1;
+ __u32 reserved2;
+};
+
+#define OCFS2_IOC_GROUP_EXTEND _IOW('o', 1, int)
+#define OCFS2_IOC_GROUP_ADD _IOW('o', 2,struct ocfs2_new_group_input)
+#define OCFS2_IOC_GROUP_ADD64 _IOW('o', 3,struct ocfs2_new_group_input)
+
+/* Used to pass 2 file names to reflink. */
+struct reflink_arguments {
+ __u64 old_path;
+ __u64 new_path;
+ __u64 preserve;
+};
+#define OCFS2_IOC_REFLINK _IOW('o', 4, struct reflink_arguments)
+
+#endif /* OCFS2_IOCTL_H */
diff --git a/fs/ocfs2/ocfs2_lockingver.h b/fs/ocfs2/ocfs2_lockingver.h
index 82d5eeac0fff..2e45c8d2ea7e 100644
--- a/fs/ocfs2/ocfs2_lockingver.h
+++ b/fs/ocfs2/ocfs2_lockingver.h
@@ -23,6 +23,8 @@
/*
* The protocol version for ocfs2 cluster locking. See dlmglue.c for
* more details.
+ *
+ * 1.0 - Initial locking version from ocfs2 1.4.
*/
#define OCFS2_LOCKING_PROTOCOL_MAJOR 1
#define OCFS2_LOCKING_PROTOCOL_MINOR 0
diff --git a/fs/ocfs2/refcounttree.c b/fs/ocfs2/refcounttree.c
index 8ae65c9c020c..fb6aa7acf54b 100644
--- a/fs/ocfs2/refcounttree.c
+++ b/fs/ocfs2/refcounttree.c
@@ -626,7 +626,7 @@ static int ocfs2_create_refcount_tree(struct inode *inode,
rb = (struct ocfs2_refcount_block *)new_bh->b_data;
memset(rb, 0, inode->i_sb->s_blocksize);
strcpy((void *)rb, OCFS2_REFCOUNT_BLOCK_SIGNATURE);
- rb->rf_suballoc_slot = cpu_to_le16(osb->slot_num);
+ rb->rf_suballoc_slot = cpu_to_le16(meta_ac->ac_alloc_slot);
rb->rf_suballoc_bit = cpu_to_le16(suballoc_bit_start);
rb->rf_fs_generation = cpu_to_le32(osb->fs_generation);
rb->rf_blkno = cpu_to_le64(first_blkno);
@@ -1330,7 +1330,7 @@ static int ocfs2_expand_inline_ref_root(handle_t *handle,
memcpy(new_bh->b_data, ref_root_bh->b_data, sb->s_blocksize);
new_rb = (struct ocfs2_refcount_block *)new_bh->b_data;
- new_rb->rf_suballoc_slot = cpu_to_le16(OCFS2_SB(sb)->slot_num);
+ new_rb->rf_suballoc_slot = cpu_to_le16(meta_ac->ac_alloc_slot);
new_rb->rf_suballoc_bit = cpu_to_le16(suballoc_bit_start);
new_rb->rf_blkno = cpu_to_le64(blkno);
new_rb->rf_cpos = cpu_to_le32(0);
@@ -1576,7 +1576,7 @@ static int ocfs2_new_leaf_refcount_block(handle_t *handle,
new_rb = (struct ocfs2_refcount_block *)new_bh->b_data;
memset(new_rb, 0, sb->s_blocksize);
strcpy((void *)new_rb, OCFS2_REFCOUNT_BLOCK_SIGNATURE);
- new_rb->rf_suballoc_slot = cpu_to_le16(OCFS2_SB(sb)->slot_num);
+ new_rb->rf_suballoc_slot = cpu_to_le16(meta_ac->ac_alloc_slot);
new_rb->rf_suballoc_bit = cpu_to_le16(suballoc_bit_start);
new_rb->rf_fs_generation = cpu_to_le32(OCFS2_SB(sb)->fs_generation);
new_rb->rf_blkno = cpu_to_le64(blkno);
diff --git a/fs/ocfs2/stack_o2cb.c b/fs/ocfs2/stack_o2cb.c
index 3038c92af493..7020e1253ffa 100644
--- a/fs/ocfs2/stack_o2cb.c
+++ b/fs/ocfs2/stack_o2cb.c
@@ -161,24 +161,23 @@ static int dlm_status_to_errno(enum dlm_status status)
static void o2dlm_lock_ast_wrapper(void *astarg)
{
- BUG_ON(o2cb_stack.sp_proto == NULL);
+ struct ocfs2_dlm_lksb *lksb = astarg;
- o2cb_stack.sp_proto->lp_lock_ast(astarg);
+ lksb->lksb_conn->cc_proto->lp_lock_ast(lksb);
}
static void o2dlm_blocking_ast_wrapper(void *astarg, int level)
{
- BUG_ON(o2cb_stack.sp_proto == NULL);
+ struct ocfs2_dlm_lksb *lksb = astarg;
- o2cb_stack.sp_proto->lp_blocking_ast(astarg, level);
+ lksb->lksb_conn->cc_proto->lp_blocking_ast(lksb, level);
}
static void o2dlm_unlock_ast_wrapper(void *astarg, enum dlm_status status)
{
+ struct ocfs2_dlm_lksb *lksb = astarg;
int error = dlm_status_to_errno(status);
- BUG_ON(o2cb_stack.sp_proto == NULL);
-
/*
* In o2dlm, you can get both the lock_ast() for the lock being
* granted and the unlock_ast() for the CANCEL failing. A
@@ -193,16 +192,15 @@ static void o2dlm_unlock_ast_wrapper(void *astarg, enum dlm_status status)
if (status == DLM_CANCELGRANT)
return;
- o2cb_stack.sp_proto->lp_unlock_ast(astarg, error);
+ lksb->lksb_conn->cc_proto->lp_unlock_ast(lksb, error);
}
static int o2cb_dlm_lock(struct ocfs2_cluster_connection *conn,
int mode,
- union ocfs2_dlm_lksb *lksb,
+ struct ocfs2_dlm_lksb *lksb,
u32 flags,
void *name,
- unsigned int namelen,
- void *astarg)
+ unsigned int namelen)
{
enum dlm_status status;
int o2dlm_mode = mode_to_o2dlm(mode);
@@ -211,28 +209,27 @@ static int o2cb_dlm_lock(struct ocfs2_cluster_connection *conn,
status = dlmlock(conn->cc_lockspace, o2dlm_mode, &lksb->lksb_o2dlm,
o2dlm_flags, name, namelen,
- o2dlm_lock_ast_wrapper, astarg,
+ o2dlm_lock_ast_wrapper, lksb,
o2dlm_blocking_ast_wrapper);
ret = dlm_status_to_errno(status);
return ret;
}
static int o2cb_dlm_unlock(struct ocfs2_cluster_connection *conn,
- union ocfs2_dlm_lksb *lksb,
- u32 flags,
- void *astarg)
+ struct ocfs2_dlm_lksb *lksb,
+ u32 flags)
{
enum dlm_status status;
int o2dlm_flags = flags_to_o2dlm(flags);
int ret;
status = dlmunlock(conn->cc_lockspace, &lksb->lksb_o2dlm,
- o2dlm_flags, o2dlm_unlock_ast_wrapper, astarg);
+ o2dlm_flags, o2dlm_unlock_ast_wrapper, lksb);
ret = dlm_status_to_errno(status);
return ret;
}
-static int o2cb_dlm_lock_status(union ocfs2_dlm_lksb *lksb)
+static int o2cb_dlm_lock_status(struct ocfs2_dlm_lksb *lksb)
{
return dlm_status_to_errno(lksb->lksb_o2dlm.status);
}
@@ -242,17 +239,17 @@ static int o2cb_dlm_lock_status(union ocfs2_dlm_lksb *lksb)
* contents, it will zero out the LVB. Thus the caller can always trust
* the contents.
*/
-static int o2cb_dlm_lvb_valid(union ocfs2_dlm_lksb *lksb)
+static int o2cb_dlm_lvb_valid(struct ocfs2_dlm_lksb *lksb)
{
return 1;
}
-static void *o2cb_dlm_lvb(union ocfs2_dlm_lksb *lksb)
+static void *o2cb_dlm_lvb(struct ocfs2_dlm_lksb *lksb)
{
return (void *)(lksb->lksb_o2dlm.lvb);
}
-static void o2cb_dump_lksb(union ocfs2_dlm_lksb *lksb)
+static void o2cb_dump_lksb(struct ocfs2_dlm_lksb *lksb)
{
dlm_print_one_lock(lksb->lksb_o2dlm.lockid);
}
@@ -280,7 +277,7 @@ static int o2cb_cluster_connect(struct ocfs2_cluster_connection *conn)
struct dlm_protocol_version fs_version;
BUG_ON(conn == NULL);
- BUG_ON(o2cb_stack.sp_proto == NULL);
+ BUG_ON(conn->cc_proto == NULL);
/* for now we only have one cluster/node, make sure we see it
* in the heartbeat universe */
diff --git a/fs/ocfs2/stack_user.c b/fs/ocfs2/stack_user.c
index da78a2a334fd..5ae8812b2864 100644
--- a/fs/ocfs2/stack_user.c
+++ b/fs/ocfs2/stack_user.c
@@ -25,7 +25,6 @@
#include <linux/reboot.h>
#include <asm/uaccess.h>
-#include "ocfs2.h" /* For struct ocfs2_lock_res */
#include "stackglue.h"
#include <linux/dlm_plock.h>
@@ -63,8 +62,8 @@
* negotiated by the client. The client negotiates based on the maximum
* version advertised in /sys/fs/ocfs2/max_locking_protocol. The major
* number from the "SETV" message must match
- * ocfs2_user_plugin.sp_proto->lp_max_version.pv_major, and the minor number
- * must be less than or equal to ...->lp_max_version.pv_minor.
+ * ocfs2_user_plugin.sp_max_proto.pv_major, and the minor number
+ * must be less than or equal to ...sp_max_version.pv_minor.
*
* Once this information has been set, mounts will be allowed. From this
* point on, the "DOWN" message can be sent for node down notification.
@@ -401,7 +400,7 @@ static int ocfs2_control_do_setversion_msg(struct file *file,
char *ptr = NULL;
struct ocfs2_control_private *p = file->private_data;
struct ocfs2_protocol_version *max =
- &ocfs2_user_plugin.sp_proto->lp_max_version;
+ &ocfs2_user_plugin.sp_max_proto;
if (ocfs2_control_get_handshake_state(file) !=
OCFS2_CONTROL_HANDSHAKE_PROTOCOL)
@@ -664,18 +663,10 @@ static void ocfs2_control_exit(void)
-rc);
}
-static struct dlm_lksb *fsdlm_astarg_to_lksb(void *astarg)
-{
- struct ocfs2_lock_res *res = astarg;
- return &res->l_lksb.lksb_fsdlm;
-}
-
static void fsdlm_lock_ast_wrapper(void *astarg)
{
- struct dlm_lksb *lksb = fsdlm_astarg_to_lksb(astarg);
- int status = lksb->sb_status;
-
- BUG_ON(ocfs2_user_plugin.sp_proto == NULL);
+ struct ocfs2_dlm_lksb *lksb = astarg;
+ int status = lksb->lksb_fsdlm.sb_status;
/*
* For now we're punting on the issue of other non-standard errors
@@ -688,25 +679,24 @@ static void fsdlm_lock_ast_wrapper(void *astarg)
*/
if (status == -DLM_EUNLOCK || status == -DLM_ECANCEL)
- ocfs2_user_plugin.sp_proto->lp_unlock_ast(astarg, 0);
+ lksb->lksb_conn->cc_proto->lp_unlock_ast(lksb, 0);
else
- ocfs2_user_plugin.sp_proto->lp_lock_ast(astarg);
+ lksb->lksb_conn->cc_proto->lp_lock_ast(lksb);
}
static void fsdlm_blocking_ast_wrapper(void *astarg, int level)
{
- BUG_ON(ocfs2_user_plugin.sp_proto == NULL);
+ struct ocfs2_dlm_lksb *lksb = astarg;
- ocfs2_user_plugin.sp_proto->lp_blocking_ast(astarg, level);
+ lksb->lksb_conn->cc_proto->lp_blocking_ast(lksb, level);
}
static int user_dlm_lock(struct ocfs2_cluster_connection *conn,
int mode,
- union ocfs2_dlm_lksb *lksb,
+ struct ocfs2_dlm_lksb *lksb,
u32 flags,
void *name,
- unsigned int namelen,
- void *astarg)
+ unsigned int namelen)
{
int ret;
@@ -716,36 +706,35 @@ static int user_dlm_lock(struct ocfs2_cluster_connection *conn,
ret = dlm_lock(conn->cc_lockspace, mode, &lksb->lksb_fsdlm,
flags|DLM_LKF_NODLCKWT, name, namelen, 0,
- fsdlm_lock_ast_wrapper, astarg,
+ fsdlm_lock_ast_wrapper, lksb,
fsdlm_blocking_ast_wrapper);
return ret;
}
static int user_dlm_unlock(struct ocfs2_cluster_connection *conn,
- union ocfs2_dlm_lksb *lksb,
- u32 flags,
- void *astarg)
+ struct ocfs2_dlm_lksb *lksb,
+ u32 flags)
{
int ret;
ret = dlm_unlock(conn->cc_lockspace, lksb->lksb_fsdlm.sb_lkid,
- flags, &lksb->lksb_fsdlm, astarg);
+ flags, &lksb->lksb_fsdlm, lksb);
return ret;
}
-static int user_dlm_lock_status(union ocfs2_dlm_lksb *lksb)
+static int user_dlm_lock_status(struct ocfs2_dlm_lksb *lksb)
{
return lksb->lksb_fsdlm.sb_status;
}
-static int user_dlm_lvb_valid(union ocfs2_dlm_lksb *lksb)
+static int user_dlm_lvb_valid(struct ocfs2_dlm_lksb *lksb)
{
int invalid = lksb->lksb_fsdlm.sb_flags & DLM_SBF_VALNOTVALID;
return !invalid;
}
-static void *user_dlm_lvb(union ocfs2_dlm_lksb *lksb)
+static void *user_dlm_lvb(struct ocfs2_dlm_lksb *lksb)
{
if (!lksb->lksb_fsdlm.sb_lvbptr)
lksb->lksb_fsdlm.sb_lvbptr = (char *)lksb +
@@ -753,7 +742,7 @@ static void *user_dlm_lvb(union ocfs2_dlm_lksb *lksb)
return (void *)(lksb->lksb_fsdlm.sb_lvbptr);
}
-static void user_dlm_dump_lksb(union ocfs2_dlm_lksb *lksb)
+static void user_dlm_dump_lksb(struct ocfs2_dlm_lksb *lksb)
{
}
diff --git a/fs/ocfs2/stackglue.c b/fs/ocfs2/stackglue.c
index f3df0baa9a48..39abf89697ed 100644
--- a/fs/ocfs2/stackglue.c
+++ b/fs/ocfs2/stackglue.c
@@ -36,7 +36,7 @@
#define OCFS2_STACK_PLUGIN_USER "user"
#define OCFS2_MAX_HB_CTL_PATH 256
-static struct ocfs2_locking_protocol *lproto;
+static struct ocfs2_protocol_version locking_max_version;
static DEFINE_SPINLOCK(ocfs2_stack_lock);
static LIST_HEAD(ocfs2_stack_list);
static char cluster_stack_name[OCFS2_STACK_LABEL_LEN + 1];
@@ -176,7 +176,7 @@ int ocfs2_stack_glue_register(struct ocfs2_stack_plugin *plugin)
spin_lock(&ocfs2_stack_lock);
if (!ocfs2_stack_lookup(plugin->sp_name)) {
plugin->sp_count = 0;
- plugin->sp_proto = lproto;
+ plugin->sp_max_proto = locking_max_version;
list_add(&plugin->sp_list, &ocfs2_stack_list);
printk(KERN_INFO "ocfs2: Registered cluster interface %s\n",
plugin->sp_name);
@@ -213,77 +213,76 @@ void ocfs2_stack_glue_unregister(struct ocfs2_stack_plugin *plugin)
}
EXPORT_SYMBOL_GPL(ocfs2_stack_glue_unregister);
-void ocfs2_stack_glue_set_locking_protocol(struct ocfs2_locking_protocol *proto)
+void ocfs2_stack_glue_set_max_proto_version(struct ocfs2_protocol_version *max_proto)
{
struct ocfs2_stack_plugin *p;
- BUG_ON(proto == NULL);
-
spin_lock(&ocfs2_stack_lock);
- BUG_ON(active_stack != NULL);
+ if (memcmp(max_proto, &locking_max_version,
+ sizeof(struct ocfs2_protocol_version))) {
+ BUG_ON(locking_max_version.pv_major != 0);
- lproto = proto;
- list_for_each_entry(p, &ocfs2_stack_list, sp_list) {
- p->sp_proto = lproto;
+ locking_max_version = *max_proto;
+ list_for_each_entry(p, &ocfs2_stack_list, sp_list) {
+ p->sp_max_proto = locking_max_version;
+ }
}
-
spin_unlock(&ocfs2_stack_lock);
}
-EXPORT_SYMBOL_GPL(ocfs2_stack_glue_set_locking_protocol);
+EXPORT_SYMBOL_GPL(ocfs2_stack_glue_set_max_proto_version);
/*
- * The ocfs2_dlm_lock() and ocfs2_dlm_unlock() functions take
- * "struct ocfs2_lock_res *astarg" instead of "void *astarg" because the
- * underlying stack plugins need to pilfer the lksb off of the lock_res.
- * If some other structure needs to be passed as an astarg, the plugins
- * will need to be given a different avenue to the lksb.
+ * The ocfs2_dlm_lock() and ocfs2_dlm_unlock() functions take no argument
+ * for the ast and bast functions. They will pass the lksb to the ast
+ * and bast. The caller can wrap the lksb with their own structure to
+ * get more information.
*/
int ocfs2_dlm_lock(struct ocfs2_cluster_connection *conn,
int mode,
- union ocfs2_dlm_lksb *lksb,
+ struct ocfs2_dlm_lksb *lksb,
u32 flags,
void *name,
- unsigned int namelen,
- struct ocfs2_lock_res *astarg)
+ unsigned int namelen)
{
- BUG_ON(lproto == NULL);
-
+ if (!lksb->lksb_conn)
+ lksb->lksb_conn = conn;
+ else
+ BUG_ON(lksb->lksb_conn != conn);
return active_stack->sp_ops->dlm_lock(conn, mode, lksb, flags,
- name, namelen, astarg);
+ name, namelen);
}
EXPORT_SYMBOL_GPL(ocfs2_dlm_lock);
int ocfs2_dlm_unlock(struct ocfs2_cluster_connection *conn,
- union ocfs2_dlm_lksb *lksb,
- u32 flags,
- struct ocfs2_lock_res *astarg)
+ struct ocfs2_dlm_lksb *lksb,
+ u32 flags)
{
- BUG_ON(lproto == NULL);
+ BUG_ON(lksb->lksb_conn == NULL);
- return active_stack->sp_ops->dlm_unlock(conn, lksb, flags, astarg);
+ return active_stack->sp_ops->dlm_unlock(conn, lksb, flags);
}
EXPORT_SYMBOL_GPL(ocfs2_dlm_unlock);
-int ocfs2_dlm_lock_status(union ocfs2_dlm_lksb *lksb)
+int ocfs2_dlm_lock_status(struct ocfs2_dlm_lksb *lksb)
{
return active_stack->sp_ops->lock_status(lksb);
}
EXPORT_SYMBOL_GPL(ocfs2_dlm_lock_status);
-int ocfs2_dlm_lvb_valid(union ocfs2_dlm_lksb *lksb)
+int ocfs2_dlm_lvb_valid(struct ocfs2_dlm_lksb *lksb)
{
return active_stack->sp_ops->lvb_valid(lksb);
}
EXPORT_SYMBOL_GPL(ocfs2_dlm_lvb_valid);
-void *ocfs2_dlm_lvb(union ocfs2_dlm_lksb *lksb)
+void *ocfs2_dlm_lvb(struct ocfs2_dlm_lksb *lksb)
{
return active_stack->sp_ops->lock_lvb(lksb);
}
EXPORT_SYMBOL_GPL(ocfs2_dlm_lvb);
-void ocfs2_dlm_dump_lksb(union ocfs2_dlm_lksb *lksb)
+void ocfs2_dlm_dump_lksb(struct ocfs2_dlm_lksb *lksb)
{
active_stack->sp_ops->dump_lksb(lksb);
}
@@ -312,6 +311,7 @@ EXPORT_SYMBOL_GPL(ocfs2_plock);
int ocfs2_cluster_connect(const char *stack_name,
const char *group,
int grouplen,
+ struct ocfs2_locking_protocol *lproto,
void (*recovery_handler)(int node_num,
void *recovery_data),
void *recovery_data,
@@ -329,6 +329,12 @@ int ocfs2_cluster_connect(const char *stack_name,
goto out;
}
+ if (memcmp(&lproto->lp_max_version, &locking_max_version,
+ sizeof(struct ocfs2_protocol_version))) {
+ rc = -EINVAL;
+ goto out;
+ }
+
new_conn = kzalloc(sizeof(struct ocfs2_cluster_connection),
GFP_KERNEL);
if (!new_conn) {
@@ -341,6 +347,7 @@ int ocfs2_cluster_connect(const char *stack_name,
new_conn->cc_recovery_handler = recovery_handler;
new_conn->cc_recovery_data = recovery_data;
+ new_conn->cc_proto = lproto;
/* Start the new connection at our maximum compatibility level */
new_conn->cc_version = lproto->lp_max_version;
@@ -366,6 +373,24 @@ out:
}
EXPORT_SYMBOL_GPL(ocfs2_cluster_connect);
+/* The caller will ensure all nodes have the same cluster stack */
+int ocfs2_cluster_connect_agnostic(const char *group,
+ int grouplen,
+ struct ocfs2_locking_protocol *lproto,
+ void (*recovery_handler)(int node_num,
+ void *recovery_data),
+ void *recovery_data,
+ struct ocfs2_cluster_connection **conn)
+{
+ char *stack_name = NULL;
+
+ if (cluster_stack_name[0])
+ stack_name = cluster_stack_name;
+ return ocfs2_cluster_connect(stack_name, group, grouplen, lproto,
+ recovery_handler, recovery_data, conn);
+}
+EXPORT_SYMBOL_GPL(ocfs2_cluster_connect_agnostic);
+
/* If hangup_pending is 0, the stack driver will be dropped */
int ocfs2_cluster_disconnect(struct ocfs2_cluster_connection *conn,
int hangup_pending)
@@ -453,10 +478,10 @@ static ssize_t ocfs2_max_locking_protocol_show(struct kobject *kobj,
ssize_t ret = 0;
spin_lock(&ocfs2_stack_lock);
- if (lproto)
+ if (locking_max_version.pv_major)
ret = snprintf(buf, PAGE_SIZE, "%u.%u\n",
- lproto->lp_max_version.pv_major,
- lproto->lp_max_version.pv_minor);
+ locking_max_version.pv_major,
+ locking_max_version.pv_minor);
spin_unlock(&ocfs2_stack_lock);
return ret;
@@ -685,7 +710,10 @@ static int __init ocfs2_stack_glue_init(void)
static void __exit ocfs2_stack_glue_exit(void)
{
- lproto = NULL;
+ memset(&locking_max_version, 0,
+ sizeof(struct ocfs2_protocol_version));
+ locking_max_version.pv_major = 0;
+ locking_max_version.pv_minor = 0;
ocfs2_sysfs_exit();
if (ocfs2_table_header)
unregister_sysctl_table(ocfs2_table_header);
diff --git a/fs/ocfs2/stackglue.h b/fs/ocfs2/stackglue.h
index 03a44d60eac9..8ce7398ae1d2 100644
--- a/fs/ocfs2/stackglue.h
+++ b/fs/ocfs2/stackglue.h
@@ -56,17 +56,6 @@ struct ocfs2_protocol_version {
};
/*
- * The ocfs2_locking_protocol defines the handlers called on ocfs2's behalf.
- */
-struct ocfs2_locking_protocol {
- struct ocfs2_protocol_version lp_max_version;
- void (*lp_lock_ast)(void *astarg);
- void (*lp_blocking_ast)(void *astarg, int level);
- void (*lp_unlock_ast)(void *astarg, int error);
-};
-
-
-/*
* The dlm_lockstatus struct includes lvb space, but the dlm_lksb struct only
* has a pointer to separately allocated lvb space. This struct exists only to
* include in the lksb union to make space for a combined dlm_lksb and lvb.
@@ -81,12 +70,27 @@ struct fsdlm_lksb_plus_lvb {
* size of the union is known. Lock status structures are embedded in
* ocfs2 inodes.
*/
-union ocfs2_dlm_lksb {
- struct dlm_lockstatus lksb_o2dlm;
- struct dlm_lksb lksb_fsdlm;
- struct fsdlm_lksb_plus_lvb padding;
+struct ocfs2_cluster_connection;
+struct ocfs2_dlm_lksb {
+ union {
+ struct dlm_lockstatus lksb_o2dlm;
+ struct dlm_lksb lksb_fsdlm;
+ struct fsdlm_lksb_plus_lvb padding;
+ };
+ struct ocfs2_cluster_connection *lksb_conn;
+};
+
+/*
+ * The ocfs2_locking_protocol defines the handlers called on ocfs2's behalf.
+ */
+struct ocfs2_locking_protocol {
+ struct ocfs2_protocol_version lp_max_version;
+ void (*lp_lock_ast)(struct ocfs2_dlm_lksb *lksb);
+ void (*lp_blocking_ast)(struct ocfs2_dlm_lksb *lksb, int level);
+ void (*lp_unlock_ast)(struct ocfs2_dlm_lksb *lksb, int error);
};
+
/*
* A cluster connection. Mostly opaque to ocfs2, the connection holds
* state for the underlying stack. ocfs2 does use cc_version to determine
@@ -96,6 +100,7 @@ struct ocfs2_cluster_connection {
char cc_name[GROUP_NAME_MAX];
int cc_namelen;
struct ocfs2_protocol_version cc_version;
+ struct ocfs2_locking_protocol *cc_proto;
void (*cc_recovery_handler)(int node_num, void *recovery_data);
void *cc_recovery_data;
void *cc_lockspace;
@@ -155,27 +160,29 @@ struct ocfs2_stack_operations {
*
* ast and bast functions are not part of the call because the
* stack will likely want to wrap ast and bast calls before passing
- * them to stack->sp_proto.
+ * them to stack->sp_proto. There is no astarg. The lksb will
+ * be passed back to the ast and bast functions. The caller can
+ * use this to find their object.
*/
int (*dlm_lock)(struct ocfs2_cluster_connection *conn,
int mode,
- union ocfs2_dlm_lksb *lksb,
+ struct ocfs2_dlm_lksb *lksb,
u32 flags,
void *name,
- unsigned int namelen,
- void *astarg);
+ unsigned int namelen);
/*
* Call the underlying dlm unlock function. The ->dlm_unlock()
* function should convert the flags as appropriate.
*
* The unlock ast is not passed, as the stack will want to wrap
- * it before calling stack->sp_proto->lp_unlock_ast().
+ * it before calling stack->sp_proto->lp_unlock_ast(). There is
+ * no astarg. The lksb will be passed back to the unlock ast
+ * function. The caller can use this to find their object.
*/
int (*dlm_unlock)(struct ocfs2_cluster_connection *conn,
- union ocfs2_dlm_lksb *lksb,
- u32 flags,
- void *astarg);
+ struct ocfs2_dlm_lksb *lksb,
+ u32 flags);
/*
* Return the status of the current lock status block. The fs
@@ -183,17 +190,17 @@ struct ocfs2_stack_operations {
* callback pulls out the stack-specific lksb, converts the status
* to a proper errno, and returns it.
*/
- int (*lock_status)(union ocfs2_dlm_lksb *lksb);
+ int (*lock_status)(struct ocfs2_dlm_lksb *lksb);
/*
* Return non-zero if the LVB is valid.
*/
- int (*lvb_valid)(union ocfs2_dlm_lksb *lksb);
+ int (*lvb_valid)(struct ocfs2_dlm_lksb *lksb);
/*
* Pull the lvb pointer off of the stack-specific lksb.
*/
- void *(*lock_lvb)(union ocfs2_dlm_lksb *lksb);
+ void *(*lock_lvb)(struct ocfs2_dlm_lksb *lksb);
/*
* Cluster-aware posix locks
@@ -210,7 +217,7 @@ struct ocfs2_stack_operations {
* This is an optoinal debugging hook. If provided, the
* stack can dump debugging information about this lock.
*/
- void (*dump_lksb)(union ocfs2_dlm_lksb *lksb);
+ void (*dump_lksb)(struct ocfs2_dlm_lksb *lksb);
};
/*
@@ -226,7 +233,7 @@ struct ocfs2_stack_plugin {
/* These are managed by the stackglue code. */
struct list_head sp_list;
unsigned int sp_count;
- struct ocfs2_locking_protocol *sp_proto;
+ struct ocfs2_protocol_version sp_max_proto;
};
@@ -234,10 +241,22 @@ struct ocfs2_stack_plugin {
int ocfs2_cluster_connect(const char *stack_name,
const char *group,
int grouplen,
+ struct ocfs2_locking_protocol *lproto,
void (*recovery_handler)(int node_num,
void *recovery_data),
void *recovery_data,
struct ocfs2_cluster_connection **conn);
+/*
+ * Used by callers that don't store their stack name. They must ensure
+ * all nodes have the same stack.
+ */
+int ocfs2_cluster_connect_agnostic(const char *group,
+ int grouplen,
+ struct ocfs2_locking_protocol *lproto,
+ void (*recovery_handler)(int node_num,
+ void *recovery_data),
+ void *recovery_data,
+ struct ocfs2_cluster_connection **conn);
int ocfs2_cluster_disconnect(struct ocfs2_cluster_connection *conn,
int hangup_pending);
void ocfs2_cluster_hangup(const char *group, int grouplen);
@@ -246,26 +265,24 @@ int ocfs2_cluster_this_node(unsigned int *node);
struct ocfs2_lock_res;
int ocfs2_dlm_lock(struct ocfs2_cluster_connection *conn,
int mode,
- union ocfs2_dlm_lksb *lksb,
+ struct ocfs2_dlm_lksb *lksb,
u32 flags,
void *name,
- unsigned int namelen,
- struct ocfs2_lock_res *astarg);
+ unsigned int namelen);
int ocfs2_dlm_unlock(struct ocfs2_cluster_connection *conn,
- union ocfs2_dlm_lksb *lksb,
- u32 flags,
- struct ocfs2_lock_res *astarg);
+ struct ocfs2_dlm_lksb *lksb,
+ u32 flags);
-int ocfs2_dlm_lock_status(union ocfs2_dlm_lksb *lksb);
-int ocfs2_dlm_lvb_valid(union ocfs2_dlm_lksb *lksb);
-void *ocfs2_dlm_lvb(union ocfs2_dlm_lksb *lksb);
-void ocfs2_dlm_dump_lksb(union ocfs2_dlm_lksb *lksb);
+int ocfs2_dlm_lock_status(struct ocfs2_dlm_lksb *lksb);
+int ocfs2_dlm_lvb_valid(struct ocfs2_dlm_lksb *lksb);
+void *ocfs2_dlm_lvb(struct ocfs2_dlm_lksb *lksb);
+void ocfs2_dlm_dump_lksb(struct ocfs2_dlm_lksb *lksb);
int ocfs2_stack_supports_plocks(void);
int ocfs2_plock(struct ocfs2_cluster_connection *conn, u64 ino,
struct file *file, int cmd, struct file_lock *fl);
-void ocfs2_stack_glue_set_locking_protocol(struct ocfs2_locking_protocol *proto);
+void ocfs2_stack_glue_set_max_proto_version(struct ocfs2_protocol_version *max_proto);
/* Used by stack plugins */
diff --git a/fs/ocfs2/suballoc.c b/fs/ocfs2/suballoc.c
index c30b644d9572..c3c60bc3e072 100644
--- a/fs/ocfs2/suballoc.c
+++ b/fs/ocfs2/suballoc.c
@@ -51,7 +51,7 @@
#define ALLOC_NEW_GROUP 0x1
#define ALLOC_GROUPS_FROM_GLOBAL 0x2
-#define OCFS2_MAX_INODES_TO_STEAL 1024
+#define OCFS2_MAX_TO_STEAL 1024
static inline void ocfs2_debug_bg(struct ocfs2_group_desc *bg);
static inline void ocfs2_debug_suballoc_inode(struct ocfs2_dinode *fe);
@@ -637,12 +637,113 @@ bail:
return status;
}
+static void ocfs2_init_inode_steal_slot(struct ocfs2_super *osb)
+{
+ spin_lock(&osb->osb_lock);
+ osb->s_inode_steal_slot = OCFS2_INVALID_SLOT;
+ spin_unlock(&osb->osb_lock);
+ atomic_set(&osb->s_num_inodes_stolen, 0);
+}
+
+static void ocfs2_init_meta_steal_slot(struct ocfs2_super *osb)
+{
+ spin_lock(&osb->osb_lock);
+ osb->s_meta_steal_slot = OCFS2_INVALID_SLOT;
+ spin_unlock(&osb->osb_lock);
+ atomic_set(&osb->s_num_meta_stolen, 0);
+}
+
+void ocfs2_init_steal_slots(struct ocfs2_super *osb)
+{
+ ocfs2_init_inode_steal_slot(osb);
+ ocfs2_init_meta_steal_slot(osb);
+}
+
+static void __ocfs2_set_steal_slot(struct ocfs2_super *osb, int slot, int type)
+{
+ spin_lock(&osb->osb_lock);
+ if (type == INODE_ALLOC_SYSTEM_INODE)
+ osb->s_inode_steal_slot = slot;
+ else if (type == EXTENT_ALLOC_SYSTEM_INODE)
+ osb->s_meta_steal_slot = slot;
+ spin_unlock(&osb->osb_lock);
+}
+
+static int __ocfs2_get_steal_slot(struct ocfs2_super *osb, int type)
+{
+ int slot = OCFS2_INVALID_SLOT;
+
+ spin_lock(&osb->osb_lock);
+ if (type == INODE_ALLOC_SYSTEM_INODE)
+ slot = osb->s_inode_steal_slot;
+ else if (type == EXTENT_ALLOC_SYSTEM_INODE)
+ slot = osb->s_meta_steal_slot;
+ spin_unlock(&osb->osb_lock);
+
+ return slot;
+}
+
+static int ocfs2_get_inode_steal_slot(struct ocfs2_super *osb)
+{
+ return __ocfs2_get_steal_slot(osb, INODE_ALLOC_SYSTEM_INODE);
+}
+
+static int ocfs2_get_meta_steal_slot(struct ocfs2_super *osb)
+{
+ return __ocfs2_get_steal_slot(osb, EXTENT_ALLOC_SYSTEM_INODE);
+}
+
+static int ocfs2_steal_resource(struct ocfs2_super *osb,
+ struct ocfs2_alloc_context *ac,
+ int type)
+{
+ int i, status = -ENOSPC;
+ int slot = __ocfs2_get_steal_slot(osb, type);
+
+ /* Start to steal resource from the first slot after ours. */
+ if (slot == OCFS2_INVALID_SLOT)
+ slot = osb->slot_num + 1;
+
+ for (i = 0; i < osb->max_slots; i++, slot++) {
+ if (slot == osb->max_slots)
+ slot = 0;
+
+ if (slot == osb->slot_num)
+ continue;
+
+ status = ocfs2_reserve_suballoc_bits(osb, ac,
+ type,
+ (u32)slot, NULL,
+ NOT_ALLOC_NEW_GROUP);
+ if (status >= 0) {
+ __ocfs2_set_steal_slot(osb, slot, type);
+ break;
+ }
+
+ ocfs2_free_ac_resource(ac);
+ }
+
+ return status;
+}
+
+static int ocfs2_steal_inode(struct ocfs2_super *osb,
+ struct ocfs2_alloc_context *ac)
+{
+ return ocfs2_steal_resource(osb, ac, INODE_ALLOC_SYSTEM_INODE);
+}
+
+static int ocfs2_steal_meta(struct ocfs2_super *osb,
+ struct ocfs2_alloc_context *ac)
+{
+ return ocfs2_steal_resource(osb, ac, EXTENT_ALLOC_SYSTEM_INODE);
+}
+
int ocfs2_reserve_new_metadata_blocks(struct ocfs2_super *osb,
int blocks,
struct ocfs2_alloc_context **ac)
{
int status;
- u32 slot;
+ int slot = ocfs2_get_meta_steal_slot(osb);
*ac = kzalloc(sizeof(struct ocfs2_alloc_context), GFP_KERNEL);
if (!(*ac)) {
@@ -653,12 +754,34 @@ int ocfs2_reserve_new_metadata_blocks(struct ocfs2_super *osb,
(*ac)->ac_bits_wanted = blocks;
(*ac)->ac_which = OCFS2_AC_USE_META;
- slot = osb->slot_num;
(*ac)->ac_group_search = ocfs2_block_group_search;
+ if (slot != OCFS2_INVALID_SLOT &&
+ atomic_read(&osb->s_num_meta_stolen) < OCFS2_MAX_TO_STEAL)
+ goto extent_steal;
+
+ atomic_set(&osb->s_num_meta_stolen, 0);
status = ocfs2_reserve_suballoc_bits(osb, (*ac),
EXTENT_ALLOC_SYSTEM_INODE,
- slot, NULL, ALLOC_NEW_GROUP);
+ (u32)osb->slot_num, NULL,
+ ALLOC_NEW_GROUP);
+
+
+ if (status >= 0) {
+ status = 0;
+ if (slot != OCFS2_INVALID_SLOT)
+ ocfs2_init_meta_steal_slot(osb);
+ goto bail;
+ } else if (status < 0 && status != -ENOSPC) {
+ mlog_errno(status);
+ goto bail;
+ }
+
+ ocfs2_free_ac_resource(*ac);
+
+extent_steal:
+ status = ocfs2_steal_meta(osb, *ac);
+ atomic_inc(&osb->s_num_meta_stolen);
if (status < 0) {
if (status != -ENOSPC)
mlog_errno(status);
@@ -685,43 +808,11 @@ int ocfs2_reserve_new_metadata(struct ocfs2_super *osb,
ac);
}
-static int ocfs2_steal_inode_from_other_nodes(struct ocfs2_super *osb,
- struct ocfs2_alloc_context *ac)
-{
- int i, status = -ENOSPC;
- s16 slot = ocfs2_get_inode_steal_slot(osb);
-
- /* Start to steal inodes from the first slot after ours. */
- if (slot == OCFS2_INVALID_SLOT)
- slot = osb->slot_num + 1;
-
- for (i = 0; i < osb->max_slots; i++, slot++) {
- if (slot == osb->max_slots)
- slot = 0;
-
- if (slot == osb->slot_num)
- continue;
-
- status = ocfs2_reserve_suballoc_bits(osb, ac,
- INODE_ALLOC_SYSTEM_INODE,
- slot, NULL,
- NOT_ALLOC_NEW_GROUP);
- if (status >= 0) {
- ocfs2_set_inode_steal_slot(osb, slot);
- break;
- }
-
- ocfs2_free_ac_resource(ac);
- }
-
- return status;
-}
-
int ocfs2_reserve_new_inode(struct ocfs2_super *osb,
struct ocfs2_alloc_context **ac)
{
int status;
- s16 slot = ocfs2_get_inode_steal_slot(osb);
+ int slot = ocfs2_get_inode_steal_slot(osb);
u64 alloc_group;
*ac = kzalloc(sizeof(struct ocfs2_alloc_context), GFP_KERNEL);
@@ -754,14 +845,14 @@ int ocfs2_reserve_new_inode(struct ocfs2_super *osb,
* need to check our slots to see whether there is some space for us.
*/
if (slot != OCFS2_INVALID_SLOT &&
- atomic_read(&osb->s_num_inodes_stolen) < OCFS2_MAX_INODES_TO_STEAL)
+ atomic_read(&osb->s_num_inodes_stolen) < OCFS2_MAX_TO_STEAL)
goto inode_steal;
atomic_set(&osb->s_num_inodes_stolen, 0);
alloc_group = osb->osb_inode_alloc_group;
status = ocfs2_reserve_suballoc_bits(osb, *ac,
INODE_ALLOC_SYSTEM_INODE,
- osb->slot_num,
+ (u32)osb->slot_num,
&alloc_group,
ALLOC_NEW_GROUP |
ALLOC_GROUPS_FROM_GLOBAL);
@@ -789,7 +880,7 @@ int ocfs2_reserve_new_inode(struct ocfs2_super *osb,
ocfs2_free_ac_resource(*ac);
inode_steal:
- status = ocfs2_steal_inode_from_other_nodes(osb, *ac);
+ status = ocfs2_steal_inode(osb, *ac);
atomic_inc(&osb->s_num_inodes_stolen);
if (status < 0) {
if (status != -ENOSPC)
diff --git a/fs/ocfs2/suballoc.h b/fs/ocfs2/suballoc.h
index 8c9a78a43164..fa60723c43e8 100644
--- a/fs/ocfs2/suballoc.h
+++ b/fs/ocfs2/suballoc.h
@@ -56,6 +56,7 @@ struct ocfs2_alloc_context {
is the same as ~0 - unlimited */
};
+void ocfs2_init_steal_slots(struct ocfs2_super *osb);
void ocfs2_free_alloc_context(struct ocfs2_alloc_context *ac);
static inline int ocfs2_alloc_context_bits_left(struct ocfs2_alloc_context *ac)
{
diff --git a/fs/ocfs2/super.c b/fs/ocfs2/super.c
index 755cd49a5ef3..dee03197a494 100644
--- a/fs/ocfs2/super.c
+++ b/fs/ocfs2/super.c
@@ -69,6 +69,7 @@
#include "xattr.h"
#include "quota.h"
#include "refcounttree.h"
+#include "suballoc.h"
#include "buffer_head_io.h"
@@ -301,9 +302,12 @@ static int ocfs2_osb_dump(struct ocfs2_super *osb, char *buf, int len)
spin_lock(&osb->osb_lock);
out += snprintf(buf + out, len - out,
- "%10s => Slot: %d NumStolen: %d\n", "Steal",
+ "%10s => InodeSlot: %d StolenInodes: %d, "
+ "MetaSlot: %d StolenMeta: %d\n", "Steal",
osb->s_inode_steal_slot,
- atomic_read(&osb->s_num_inodes_stolen));
+ atomic_read(&osb->s_num_inodes_stolen),
+ osb->s_meta_steal_slot,
+ atomic_read(&osb->s_num_meta_stolen));
spin_unlock(&osb->osb_lock);
out += snprintf(buf + out, len - out, "OrphanScan => ");
@@ -1997,7 +2001,7 @@ static int ocfs2_initialize_super(struct super_block *sb,
osb->blocked_lock_count = 0;
spin_lock_init(&osb->osb_lock);
spin_lock_init(&osb->osb_xattr_lock);
- ocfs2_init_inode_steal_slot(osb);
+ ocfs2_init_steal_slots(osb);
atomic_set(&osb->alloc_stats.moves, 0);
atomic_set(&osb->alloc_stats.local_data, 0);
diff --git a/fs/ocfs2/xattr.c b/fs/ocfs2/xattr.c
index 8fc6fb071c6d..d1b0d386f6d1 100644
--- a/fs/ocfs2/xattr.c
+++ b/fs/ocfs2/xattr.c
@@ -116,10 +116,11 @@ static struct xattr_handler *ocfs2_xattr_handler_map[OCFS2_XATTR_MAX] = {
};
struct ocfs2_xattr_info {
- int name_index;
- const char *name;
- const void *value;
- size_t value_len;
+ int xi_name_index;
+ const char *xi_name;
+ int xi_name_len;
+ const void *xi_value;
+ size_t xi_value_len;
};
struct ocfs2_xattr_search {
@@ -137,6 +138,115 @@ struct ocfs2_xattr_search {
int not_found;
};
+/* Operations on struct ocfs2_xa_entry */
+struct ocfs2_xa_loc;
+struct ocfs2_xa_loc_operations {
+ /*
+ * Journal functions
+ */
+ int (*xlo_journal_access)(handle_t *handle, struct ocfs2_xa_loc *loc,
+ int type);
+ void (*xlo_journal_dirty)(handle_t *handle, struct ocfs2_xa_loc *loc);
+
+ /*
+ * Return a pointer to the appropriate buffer in loc->xl_storage
+ * at the given offset from loc->xl_header.
+ */
+ void *(*xlo_offset_pointer)(struct ocfs2_xa_loc *loc, int offset);
+
+ /* Can we reuse the existing entry for the new value? */
+ int (*xlo_can_reuse)(struct ocfs2_xa_loc *loc,
+ struct ocfs2_xattr_info *xi);
+
+ /* How much space is needed for the new value? */
+ int (*xlo_check_space)(struct ocfs2_xa_loc *loc,
+ struct ocfs2_xattr_info *xi);
+
+ /*
+ * Return the offset of the first name+value pair. This is
+ * the start of our downward-filling free space.
+ */
+ int (*xlo_get_free_start)(struct ocfs2_xa_loc *loc);
+
+ /*
+ * Remove the name+value at this location. Do whatever is
+ * appropriate with the remaining name+value pairs.
+ */
+ void (*xlo_wipe_namevalue)(struct ocfs2_xa_loc *loc);
+
+ /* Fill xl_entry with a new entry */
+ void (*xlo_add_entry)(struct ocfs2_xa_loc *loc, u32 name_hash);
+
+ /* Add name+value storage to an entry */
+ void (*xlo_add_namevalue)(struct ocfs2_xa_loc *loc, int size);
+
+ /*
+ * Initialize the value buf's access and bh fields for this entry.
+ * ocfs2_xa_fill_value_buf() will handle the xv pointer.
+ */
+ void (*xlo_fill_value_buf)(struct ocfs2_xa_loc *loc,
+ struct ocfs2_xattr_value_buf *vb);
+};
+
+/*
+ * Describes an xattr entry location. This is a memory structure
+ * tracking the on-disk structure.
+ */
+struct ocfs2_xa_loc {
+ /* This xattr belongs to this inode */
+ struct inode *xl_inode;
+
+ /* The ocfs2_xattr_header inside the on-disk storage. Not NULL. */
+ struct ocfs2_xattr_header *xl_header;
+
+ /* Bytes from xl_header to the end of the storage */
+ int xl_size;
+
+ /*
+ * The ocfs2_xattr_entry this location describes. If this is
+ * NULL, this location describes the on-disk structure where it
+ * would have been.
+ */
+ struct ocfs2_xattr_entry *xl_entry;
+
+ /*
+ * Internal housekeeping
+ */
+
+ /* Buffer(s) containing this entry */
+ void *xl_storage;
+
+ /* Operations on the storage backing this location */
+ const struct ocfs2_xa_loc_operations *xl_ops;
+};
+
+/*
+ * Convenience functions to calculate how much space is needed for a
+ * given name+value pair
+ */
+static int namevalue_size(int name_len, uint64_t value_len)
+{
+ if (value_len > OCFS2_XATTR_INLINE_SIZE)
+ return OCFS2_XATTR_SIZE(name_len) + OCFS2_XATTR_ROOT_SIZE;
+ else
+ return OCFS2_XATTR_SIZE(name_len) + OCFS2_XATTR_SIZE(value_len);
+}
+
+static int namevalue_size_xi(struct ocfs2_xattr_info *xi)
+{
+ return namevalue_size(xi->xi_name_len, xi->xi_value_len);
+}
+
+static int namevalue_size_xe(struct ocfs2_xattr_entry *xe)
+{
+ u64 value_len = le64_to_cpu(xe->xe_value_size);
+
+ BUG_ON((value_len > OCFS2_XATTR_INLINE_SIZE) &&
+ ocfs2_xattr_is_local(xe));
+ return namevalue_size(xe->xe_name_len, value_len);
+}
+
+
static int ocfs2_xattr_bucket_get_name_value(struct super_block *sb,
struct ocfs2_xattr_header *xh,
int index,
@@ -212,14 +322,6 @@ static inline u16 ocfs2_blocks_per_xattr_bucket(struct super_block *sb)
return OCFS2_XATTR_BUCKET_SIZE / (1 << sb->s_blocksize_bits);
}
-static inline u16 ocfs2_xattr_max_xe_in_bucket(struct super_block *sb)
-{
- u16 len = sb->s_blocksize -
- offsetof(struct ocfs2_xattr_header, xh_entries);
-
- return len / sizeof(struct ocfs2_xattr_entry);
-}
-
#define bucket_blkno(_b) ((_b)->bu_bhs[0]->b_blocknr)
#define bucket_block(_b, _n) ((_b)->bu_bhs[(_n)]->b_data)
#define bucket_xh(_b) ((struct ocfs2_xattr_header *)bucket_block((_b), 0))
@@ -463,35 +565,22 @@ static u32 ocfs2_xattr_name_hash(struct inode *inode,
return hash;
}
-/*
- * ocfs2_xattr_hash_entry()
- *
- * Compute the hash of an extended attribute.
- */
-static void ocfs2_xattr_hash_entry(struct inode *inode,
- struct ocfs2_xattr_header *header,
- struct ocfs2_xattr_entry *entry)
+static int ocfs2_xattr_entry_real_size(int name_len, size_t value_len)
{
- u32 hash = 0;
- char *name = (char *)header + le16_to_cpu(entry->xe_name_offset);
-
- hash = ocfs2_xattr_name_hash(inode, name, entry->xe_name_len);
- entry->xe_name_hash = cpu_to_le32(hash);
-
- return;
+ return namevalue_size(name_len, value_len) +
+ sizeof(struct ocfs2_xattr_entry);
}
-static int ocfs2_xattr_entry_real_size(int name_len, size_t value_len)
+static int ocfs2_xi_entry_usage(struct ocfs2_xattr_info *xi)
{
- int size = 0;
-
- if (value_len <= OCFS2_XATTR_INLINE_SIZE)
- size = OCFS2_XATTR_SIZE(name_len) + OCFS2_XATTR_SIZE(value_len);
- else
- size = OCFS2_XATTR_SIZE(name_len) + OCFS2_XATTR_ROOT_SIZE;
- size += sizeof(struct ocfs2_xattr_entry);
+ return namevalue_size_xi(xi) +
+ sizeof(struct ocfs2_xattr_entry);
+}
- return size;
+static int ocfs2_xe_entry_usage(struct ocfs2_xattr_entry *xe)
+{
+ return namevalue_size_xe(xe) +
+ sizeof(struct ocfs2_xattr_entry);
}
int ocfs2_calc_security_init(struct inode *dir,
@@ -1308,452 +1397,897 @@ out:
return ret;
}
-static int ocfs2_xattr_cleanup(struct inode *inode,
- handle_t *handle,
- struct ocfs2_xattr_info *xi,
- struct ocfs2_xattr_search *xs,
- struct ocfs2_xattr_value_buf *vb,
- size_t offs)
+static int ocfs2_xa_check_space_helper(int needed_space, int free_start,
+ int num_entries)
{
- int ret = 0;
- size_t name_len = strlen(xi->name);
- void *val = xs->base + offs;
- size_t size = OCFS2_XATTR_SIZE(name_len) + OCFS2_XATTR_ROOT_SIZE;
+ int free_space;
- ret = vb->vb_access(handle, INODE_CACHE(inode), vb->vb_bh,
- OCFS2_JOURNAL_ACCESS_WRITE);
- if (ret) {
- mlog_errno(ret);
- goto out;
- }
- /* Decrease xattr count */
- le16_add_cpu(&xs->header->xh_count, -1);
- /* Remove the xattr entry and tree root which has already be set*/
- memset((void *)xs->here, 0, sizeof(struct ocfs2_xattr_entry));
- memset(val, 0, size);
+ if (!needed_space)
+ return 0;
- ret = ocfs2_journal_dirty(handle, vb->vb_bh);
- if (ret < 0)
- mlog_errno(ret);
-out:
- return ret;
+ free_space = free_start -
+ sizeof(struct ocfs2_xattr_header) -
+ (num_entries * sizeof(struct ocfs2_xattr_entry)) -
+ OCFS2_XATTR_HEADER_GAP;
+ if (free_space < 0)
+ return -EIO;
+ if (free_space < needed_space)
+ return -ENOSPC;
+
+ return 0;
}
-static int ocfs2_xattr_update_entry(struct inode *inode,
- handle_t *handle,
- struct ocfs2_xattr_info *xi,
- struct ocfs2_xattr_search *xs,
- struct ocfs2_xattr_value_buf *vb,
- size_t offs)
+static int ocfs2_xa_journal_access(handle_t *handle, struct ocfs2_xa_loc *loc,
+ int type)
{
- int ret;
+ return loc->xl_ops->xlo_journal_access(handle, loc, type);
+}
- ret = vb->vb_access(handle, INODE_CACHE(inode), vb->vb_bh,
- OCFS2_JOURNAL_ACCESS_WRITE);
- if (ret) {
- mlog_errno(ret);
- goto out;
- }
+static void ocfs2_xa_journal_dirty(handle_t *handle, struct ocfs2_xa_loc *loc)
+{
+ loc->xl_ops->xlo_journal_dirty(handle, loc);
+}
- xs->here->xe_name_offset = cpu_to_le16(offs);
- xs->here->xe_value_size = cpu_to_le64(xi->value_len);
- if (xi->value_len <= OCFS2_XATTR_INLINE_SIZE)
- ocfs2_xattr_set_local(xs->here, 1);
- else
- ocfs2_xattr_set_local(xs->here, 0);
- ocfs2_xattr_hash_entry(inode, xs->header, xs->here);
+/* Give a pointer into the storage for the given offset */
+static void *ocfs2_xa_offset_pointer(struct ocfs2_xa_loc *loc, int offset)
+{
+ BUG_ON(offset >= loc->xl_size);
+ return loc->xl_ops->xlo_offset_pointer(loc, offset);
+}
- ret = ocfs2_journal_dirty(handle, vb->vb_bh);
- if (ret < 0)
- mlog_errno(ret);
-out:
- return ret;
+/*
+ * Wipe the name+value pair and allow the storage to reclaim it. This
+ * must be followed by either removal of the entry or a call to
+ * ocfs2_xa_add_namevalue().
+ */
+static void ocfs2_xa_wipe_namevalue(struct ocfs2_xa_loc *loc)
+{
+ loc->xl_ops->xlo_wipe_namevalue(loc);
}
/*
- * ocfs2_xattr_set_value_outside()
- *
- * Set large size value in B tree.
+ * Find lowest offset to a name+value pair. This is the start of our
+ * downward-growing free space.
*/
-static int ocfs2_xattr_set_value_outside(struct inode *inode,
- struct ocfs2_xattr_info *xi,
- struct ocfs2_xattr_search *xs,
- struct ocfs2_xattr_set_ctxt *ctxt,
- struct ocfs2_xattr_value_buf *vb,
- size_t offs)
+static int ocfs2_xa_get_free_start(struct ocfs2_xa_loc *loc)
{
- size_t name_len = strlen(xi->name);
- void *val = xs->base + offs;
- struct ocfs2_xattr_value_root *xv = NULL;
- size_t size = OCFS2_XATTR_SIZE(name_len) + OCFS2_XATTR_ROOT_SIZE;
- int ret = 0;
+ return loc->xl_ops->xlo_get_free_start(loc);
+}
- memset(val, 0, size);
- memcpy(val, xi->name, name_len);
- xv = (struct ocfs2_xattr_value_root *)
- (val + OCFS2_XATTR_SIZE(name_len));
- xv->xr_clusters = 0;
- xv->xr_last_eb_blk = 0;
- xv->xr_list.l_tree_depth = 0;
- xv->xr_list.l_count = cpu_to_le16(1);
- xv->xr_list.l_next_free_rec = 0;
- vb->vb_xv = xv;
-
- ret = ocfs2_xattr_value_truncate(inode, vb, xi->value_len, ctxt);
- if (ret < 0) {
- mlog_errno(ret);
- return ret;
+/* Can we reuse loc->xl_entry for xi? */
+static int ocfs2_xa_can_reuse_entry(struct ocfs2_xa_loc *loc,
+ struct ocfs2_xattr_info *xi)
+{
+ return loc->xl_ops->xlo_can_reuse(loc, xi);
+}
+
+/* How much free space is needed to set the new value */
+static int ocfs2_xa_check_space(struct ocfs2_xa_loc *loc,
+ struct ocfs2_xattr_info *xi)
+{
+ return loc->xl_ops->xlo_check_space(loc, xi);
+}
+
+static void ocfs2_xa_add_entry(struct ocfs2_xa_loc *loc, u32 name_hash)
+{
+ loc->xl_ops->xlo_add_entry(loc, name_hash);
+ loc->xl_entry->xe_name_hash = cpu_to_le32(name_hash);
+ /*
+ * We can't leave the new entry's xe_name_offset at zero or
+ * add_namevalue() will go nuts. We set it to the size of our
+ * storage so that it can never be less than any other entry.
+ */
+ loc->xl_entry->xe_name_offset = cpu_to_le16(loc->xl_size);
+}
+
+static void ocfs2_xa_add_namevalue(struct ocfs2_xa_loc *loc,
+ struct ocfs2_xattr_info *xi)
+{
+ int size = namevalue_size_xi(xi);
+ int nameval_offset;
+ char *nameval_buf;
+
+ loc->xl_ops->xlo_add_namevalue(loc, size);
+ loc->xl_entry->xe_value_size = cpu_to_le64(xi->xi_value_len);
+ loc->xl_entry->xe_name_len = xi->xi_name_len;
+ ocfs2_xattr_set_type(loc->xl_entry, xi->xi_name_index);
+ ocfs2_xattr_set_local(loc->xl_entry,
+ xi->xi_value_len <= OCFS2_XATTR_INLINE_SIZE);
+
+ nameval_offset = le16_to_cpu(loc->xl_entry->xe_name_offset);
+ nameval_buf = ocfs2_xa_offset_pointer(loc, nameval_offset);
+ memset(nameval_buf, 0, size);
+ memcpy(nameval_buf, xi->xi_name, xi->xi_name_len);
+}
+
+static void ocfs2_xa_fill_value_buf(struct ocfs2_xa_loc *loc,
+ struct ocfs2_xattr_value_buf *vb)
+{
+ int nameval_offset = le16_to_cpu(loc->xl_entry->xe_name_offset);
+ int name_size = OCFS2_XATTR_SIZE(loc->xl_entry->xe_name_len);
+
+ /* Value bufs are for value trees */
+ BUG_ON(ocfs2_xattr_is_local(loc->xl_entry));
+ BUG_ON(namevalue_size_xe(loc->xl_entry) !=
+ (name_size + OCFS2_XATTR_ROOT_SIZE));
+
+ loc->xl_ops->xlo_fill_value_buf(loc, vb);
+ vb->vb_xv =
+ (struct ocfs2_xattr_value_root *)ocfs2_xa_offset_pointer(loc,
+ nameval_offset +
+ name_size);
+}
+
+static int ocfs2_xa_block_journal_access(handle_t *handle,
+ struct ocfs2_xa_loc *loc, int type)
+{
+ struct buffer_head *bh = loc->xl_storage;
+ ocfs2_journal_access_func access;
+
+ if (loc->xl_size == (bh->b_size -
+ offsetof(struct ocfs2_xattr_block,
+ xb_attrs.xb_header)))
+ access = ocfs2_journal_access_xb;
+ else
+ access = ocfs2_journal_access_di;
+ return access(handle, INODE_CACHE(loc->xl_inode), bh, type);
+}
+
+static void ocfs2_xa_block_journal_dirty(handle_t *handle,
+ struct ocfs2_xa_loc *loc)
+{
+ struct buffer_head *bh = loc->xl_storage;
+
+ ocfs2_journal_dirty(handle, bh);
+}
+
+static void *ocfs2_xa_block_offset_pointer(struct ocfs2_xa_loc *loc,
+ int offset)
+{
+ return (char *)loc->xl_header + offset;
+}
+
+static int ocfs2_xa_block_can_reuse(struct ocfs2_xa_loc *loc,
+ struct ocfs2_xattr_info *xi)
+{
+ /*
+ * Block storage is strict. If the sizes aren't exact, we will
+ * remove the old one and reinsert the new.
+ */
+ return namevalue_size_xe(loc->xl_entry) ==
+ namevalue_size_xi(xi);
+}
+
+static int ocfs2_xa_block_get_free_start(struct ocfs2_xa_loc *loc)
+{
+ struct ocfs2_xattr_header *xh = loc->xl_header;
+ int i, count = le16_to_cpu(xh->xh_count);
+ int offset, free_start = loc->xl_size;
+
+ for (i = 0; i < count; i++) {
+ offset = le16_to_cpu(xh->xh_entries[i].xe_name_offset);
+ if (offset < free_start)
+ free_start = offset;
}
- ret = ocfs2_xattr_update_entry(inode, ctxt->handle, xi, xs, vb, offs);
- if (ret < 0) {
- mlog_errno(ret);
- return ret;
+
+ return free_start;
+}
+
+static int ocfs2_xa_block_check_space(struct ocfs2_xa_loc *loc,
+ struct ocfs2_xattr_info *xi)
+{
+ int count = le16_to_cpu(loc->xl_header->xh_count);
+ int free_start = ocfs2_xa_get_free_start(loc);
+ int needed_space = ocfs2_xi_entry_usage(xi);
+
+ /*
+ * Block storage will reclaim the original entry before inserting
+ * the new value, so we only need the difference. If the new
+ * entry is smaller than the old one, we don't need anything.
+ */
+ if (loc->xl_entry) {
+ /* Don't need space if we're reusing! */
+ if (ocfs2_xa_can_reuse_entry(loc, xi))
+ needed_space = 0;
+ else
+ needed_space -= ocfs2_xe_entry_usage(loc->xl_entry);
}
- ret = __ocfs2_xattr_set_value_outside(inode, ctxt->handle, vb,
- xi->value, xi->value_len);
- if (ret < 0)
- mlog_errno(ret);
+ if (needed_space < 0)
+ needed_space = 0;
+ return ocfs2_xa_check_space_helper(needed_space, free_start, count);
+}
- return ret;
+/*
+ * Block storage for xattrs keeps the name+value pairs compacted. When
+ * we remove one, we have to shift any that preceded it towards the end.
+ */
+static void ocfs2_xa_block_wipe_namevalue(struct ocfs2_xa_loc *loc)
+{
+ int i, offset;
+ int namevalue_offset, first_namevalue_offset, namevalue_size;
+ struct ocfs2_xattr_entry *entry = loc->xl_entry;
+ struct ocfs2_xattr_header *xh = loc->xl_header;
+ int count = le16_to_cpu(xh->xh_count);
+
+ namevalue_offset = le16_to_cpu(entry->xe_name_offset);
+ namevalue_size = namevalue_size_xe(entry);
+ first_namevalue_offset = ocfs2_xa_get_free_start(loc);
+
+ /* Shift the name+value pairs */
+ memmove((char *)xh + first_namevalue_offset + namevalue_size,
+ (char *)xh + first_namevalue_offset,
+ namevalue_offset - first_namevalue_offset);
+ memset((char *)xh + first_namevalue_offset, 0, namevalue_size);
+
+ /* Now tell xh->xh_entries about it */
+ for (i = 0; i < count; i++) {
+ offset = le16_to_cpu(xh->xh_entries[i].xe_name_offset);
+ if (offset < namevalue_offset)
+ le16_add_cpu(&xh->xh_entries[i].xe_name_offset,
+ namevalue_size);
+ }
+
+ /*
+ * Note that we don't update xh_free_start or xh_name_value_len
+ * because they're not used in block-stored xattrs.
+ */
+}
+
+static void ocfs2_xa_block_add_entry(struct ocfs2_xa_loc *loc, u32 name_hash)
+{
+ int count = le16_to_cpu(loc->xl_header->xh_count);
+ loc->xl_entry = &(loc->xl_header->xh_entries[count]);
+ le16_add_cpu(&loc->xl_header->xh_count, 1);
+ memset(loc->xl_entry, 0, sizeof(struct ocfs2_xattr_entry));
+}
+
+static void ocfs2_xa_block_add_namevalue(struct ocfs2_xa_loc *loc, int size)
+{
+ int free_start = ocfs2_xa_get_free_start(loc);
+
+ loc->xl_entry->xe_name_offset = cpu_to_le16(free_start - size);
+}
+
+static void ocfs2_xa_block_fill_value_buf(struct ocfs2_xa_loc *loc,
+ struct ocfs2_xattr_value_buf *vb)
+{
+ struct buffer_head *bh = loc->xl_storage;
+
+ if (loc->xl_size == (bh->b_size -
+ offsetof(struct ocfs2_xattr_block,
+ xb_attrs.xb_header)))
+ vb->vb_access = ocfs2_journal_access_xb;
+ else
+ vb->vb_access = ocfs2_journal_access_di;
+ vb->vb_bh = bh;
}
/*
- * ocfs2_xattr_set_entry_local()
- *
- * Set, replace or remove extended attribute in local.
+ * Operations for xattrs stored in blocks. This includes inline inode
+ * storage and unindexed ocfs2_xattr_blocks.
*/
-static void ocfs2_xattr_set_entry_local(struct inode *inode,
- struct ocfs2_xattr_info *xi,
- struct ocfs2_xattr_search *xs,
- struct ocfs2_xattr_entry *last,
- size_t min_offs)
+static const struct ocfs2_xa_loc_operations ocfs2_xa_block_loc_ops = {
+ .xlo_journal_access = ocfs2_xa_block_journal_access,
+ .xlo_journal_dirty = ocfs2_xa_block_journal_dirty,
+ .xlo_offset_pointer = ocfs2_xa_block_offset_pointer,
+ .xlo_check_space = ocfs2_xa_block_check_space,
+ .xlo_can_reuse = ocfs2_xa_block_can_reuse,
+ .xlo_get_free_start = ocfs2_xa_block_get_free_start,
+ .xlo_wipe_namevalue = ocfs2_xa_block_wipe_namevalue,
+ .xlo_add_entry = ocfs2_xa_block_add_entry,
+ .xlo_add_namevalue = ocfs2_xa_block_add_namevalue,
+ .xlo_fill_value_buf = ocfs2_xa_block_fill_value_buf,
+};
+
+static int ocfs2_xa_bucket_journal_access(handle_t *handle,
+ struct ocfs2_xa_loc *loc, int type)
{
- size_t name_len = strlen(xi->name);
- int i;
+ struct ocfs2_xattr_bucket *bucket = loc->xl_storage;
- if (xi->value && xs->not_found) {
- /* Insert the new xattr entry. */
- le16_add_cpu(&xs->header->xh_count, 1);
- ocfs2_xattr_set_type(last, xi->name_index);
- ocfs2_xattr_set_local(last, 1);
- last->xe_name_len = name_len;
- } else {
- void *first_val;
- void *val;
- size_t offs, size;
-
- first_val = xs->base + min_offs;
- offs = le16_to_cpu(xs->here->xe_name_offset);
- val = xs->base + offs;
-
- if (le64_to_cpu(xs->here->xe_value_size) >
- OCFS2_XATTR_INLINE_SIZE)
- size = OCFS2_XATTR_SIZE(name_len) +
- OCFS2_XATTR_ROOT_SIZE;
+ return ocfs2_xattr_bucket_journal_access(handle, bucket, type);
+}
+
+static void ocfs2_xa_bucket_journal_dirty(handle_t *handle,
+ struct ocfs2_xa_loc *loc)
+{
+ struct ocfs2_xattr_bucket *bucket = loc->xl_storage;
+
+ ocfs2_xattr_bucket_journal_dirty(handle, bucket);
+}
+
+static void *ocfs2_xa_bucket_offset_pointer(struct ocfs2_xa_loc *loc,
+ int offset)
+{
+ struct ocfs2_xattr_bucket *bucket = loc->xl_storage;
+ int block, block_offset;
+
+ /* The header is at the front of the bucket */
+ block = offset >> loc->xl_inode->i_sb->s_blocksize_bits;
+ block_offset = offset % loc->xl_inode->i_sb->s_blocksize;
+
+ return bucket_block(bucket, block) + block_offset;
+}
+
+static int ocfs2_xa_bucket_can_reuse(struct ocfs2_xa_loc *loc,
+ struct ocfs2_xattr_info *xi)
+{
+ return namevalue_size_xe(loc->xl_entry) >=
+ namevalue_size_xi(xi);
+}
+
+static int ocfs2_xa_bucket_get_free_start(struct ocfs2_xa_loc *loc)
+{
+ struct ocfs2_xattr_bucket *bucket = loc->xl_storage;
+ return le16_to_cpu(bucket_xh(bucket)->xh_free_start);
+}
+
+static int ocfs2_bucket_align_free_start(struct super_block *sb,
+ int free_start, int size)
+{
+ /*
+ * We need to make sure that the name+value pair fits within
+ * one block.
+ */
+ if (((free_start - size) >> sb->s_blocksize_bits) !=
+ ((free_start - 1) >> sb->s_blocksize_bits))
+ free_start -= free_start % sb->s_blocksize;
+
+ return free_start;
+}
+
+static int ocfs2_xa_bucket_check_space(struct ocfs2_xa_loc *loc,
+ struct ocfs2_xattr_info *xi)
+{
+ int rc;
+ int count = le16_to_cpu(loc->xl_header->xh_count);
+ int free_start = ocfs2_xa_get_free_start(loc);
+ int needed_space = ocfs2_xi_entry_usage(xi);
+ int size = namevalue_size_xi(xi);
+ struct super_block *sb = loc->xl_inode->i_sb;
+
+ /*
+ * Bucket storage does not reclaim name+value pairs it cannot
+ * reuse. They live as holes until the bucket fills, and then
+ * the bucket is defragmented. However, the bucket can reclaim
+ * the ocfs2_xattr_entry.
+ */
+ if (loc->xl_entry) {
+ /* Don't need space if we're reusing! */
+ if (ocfs2_xa_can_reuse_entry(loc, xi))
+ needed_space = 0;
else
- size = OCFS2_XATTR_SIZE(name_len) +
- OCFS2_XATTR_SIZE(le64_to_cpu(xs->here->xe_value_size));
-
- if (xi->value && size == OCFS2_XATTR_SIZE(name_len) +
- OCFS2_XATTR_SIZE(xi->value_len)) {
- /* The old and the new value have the
- same size. Just replace the value. */
- ocfs2_xattr_set_local(xs->here, 1);
- xs->here->xe_value_size = cpu_to_le64(xi->value_len);
- /* Clear value bytes. */
- memset(val + OCFS2_XATTR_SIZE(name_len),
- 0,
- OCFS2_XATTR_SIZE(xi->value_len));
- memcpy(val + OCFS2_XATTR_SIZE(name_len),
- xi->value,
- xi->value_len);
- return;
- }
- /* Remove the old name+value. */
- memmove(first_val + size, first_val, val - first_val);
- memset(first_val, 0, size);
- xs->here->xe_name_hash = 0;
- xs->here->xe_name_offset = 0;
- ocfs2_xattr_set_local(xs->here, 1);
- xs->here->xe_value_size = 0;
-
- min_offs += size;
-
- /* Adjust all value offsets. */
- last = xs->header->xh_entries;
- for (i = 0 ; i < le16_to_cpu(xs->header->xh_count); i++) {
- size_t o = le16_to_cpu(last->xe_name_offset);
-
- if (o < offs)
- last->xe_name_offset = cpu_to_le16(o + size);
- last += 1;
- }
+ needed_space -= sizeof(struct ocfs2_xattr_entry);
+ }
+ BUG_ON(needed_space < 0);
- if (!xi->value) {
- /* Remove the old entry. */
- last -= 1;
- memmove(xs->here, xs->here + 1,
- (void *)last - (void *)xs->here);
- memset(last, 0, sizeof(struct ocfs2_xattr_entry));
- le16_add_cpu(&xs->header->xh_count, -1);
- }
+ if (free_start < size) {
+ if (needed_space)
+ return -ENOSPC;
+ } else {
+ /*
+ * First we check if it would fit in the first place.
+ * Below, we align the free start to a block. This may
+ * slide us below the minimum gap. By checking unaligned
+ * first, we avoid that error.
+ */
+ rc = ocfs2_xa_check_space_helper(needed_space, free_start,
+ count);
+ if (rc)
+ return rc;
+ free_start = ocfs2_bucket_align_free_start(sb, free_start,
+ size);
}
- if (xi->value) {
- /* Insert the new name+value. */
- size_t size = OCFS2_XATTR_SIZE(name_len) +
- OCFS2_XATTR_SIZE(xi->value_len);
- void *val = xs->base + min_offs - size;
+ return ocfs2_xa_check_space_helper(needed_space, free_start, count);
+}
+
+static void ocfs2_xa_bucket_wipe_namevalue(struct ocfs2_xa_loc *loc)
+{
+ le16_add_cpu(&loc->xl_header->xh_name_value_len,
+ -namevalue_size_xe(loc->xl_entry));
+}
- xs->here->xe_name_offset = cpu_to_le16(min_offs - size);
- memset(val, 0, size);
- memcpy(val, xi->name, name_len);
- memcpy(val + OCFS2_XATTR_SIZE(name_len),
- xi->value,
- xi->value_len);
- xs->here->xe_value_size = cpu_to_le64(xi->value_len);
- ocfs2_xattr_set_local(xs->here, 1);
- ocfs2_xattr_hash_entry(inode, xs->header, xs->here);
+static void ocfs2_xa_bucket_add_entry(struct ocfs2_xa_loc *loc, u32 name_hash)
+{
+ struct ocfs2_xattr_header *xh = loc->xl_header;
+ int count = le16_to_cpu(xh->xh_count);
+ int low = 0, high = count - 1, tmp;
+ struct ocfs2_xattr_entry *tmp_xe;
+
+ /*
+ * We keep buckets sorted by name_hash, so we need to find
+ * our insert place.
+ */
+ while (low <= high && count) {
+ tmp = (low + high) / 2;
+ tmp_xe = &xh->xh_entries[tmp];
+
+ if (name_hash > le32_to_cpu(tmp_xe->xe_name_hash))
+ low = tmp + 1;
+ else if (name_hash < le32_to_cpu(tmp_xe->xe_name_hash))
+ high = tmp - 1;
+ else {
+ low = tmp;
+ break;
+ }
}
- return;
+ if (low != count)
+ memmove(&xh->xh_entries[low + 1],
+ &xh->xh_entries[low],
+ ((count - low) * sizeof(struct ocfs2_xattr_entry)));
+
+ le16_add_cpu(&xh->xh_count, 1);
+ loc->xl_entry = &xh->xh_entries[low];
+ memset(loc->xl_entry, 0, sizeof(struct ocfs2_xattr_entry));
+}
+
+static void ocfs2_xa_bucket_add_namevalue(struct ocfs2_xa_loc *loc, int size)
+{
+ int free_start = ocfs2_xa_get_free_start(loc);
+ struct ocfs2_xattr_header *xh = loc->xl_header;
+ struct super_block *sb = loc->xl_inode->i_sb;
+ int nameval_offset;
+
+ free_start = ocfs2_bucket_align_free_start(sb, free_start, size);
+ nameval_offset = free_start - size;
+ loc->xl_entry->xe_name_offset = cpu_to_le16(nameval_offset);
+ xh->xh_free_start = cpu_to_le16(nameval_offset);
+ le16_add_cpu(&xh->xh_name_value_len, size);
+
+}
+
+static void ocfs2_xa_bucket_fill_value_buf(struct ocfs2_xa_loc *loc,
+ struct ocfs2_xattr_value_buf *vb)
+{
+ struct ocfs2_xattr_bucket *bucket = loc->xl_storage;
+ struct super_block *sb = loc->xl_inode->i_sb;
+ int nameval_offset = le16_to_cpu(loc->xl_entry->xe_name_offset);
+ int size = namevalue_size_xe(loc->xl_entry);
+ int block_offset = nameval_offset >> sb->s_blocksize_bits;
+
+ /* Values are not allowed to straddle block boundaries */
+ BUG_ON(block_offset !=
+ ((nameval_offset + size - 1) >> sb->s_blocksize_bits));
+ /* We expect the bucket to be filled in */
+ BUG_ON(!bucket->bu_bhs[block_offset]);
+
+ vb->vb_access = ocfs2_journal_access;
+ vb->vb_bh = bucket->bu_bhs[block_offset];
+}
+
+/* Operations for xattrs stored in buckets. */
+static const struct ocfs2_xa_loc_operations ocfs2_xa_bucket_loc_ops = {
+ .xlo_journal_access = ocfs2_xa_bucket_journal_access,
+ .xlo_journal_dirty = ocfs2_xa_bucket_journal_dirty,
+ .xlo_offset_pointer = ocfs2_xa_bucket_offset_pointer,
+ .xlo_check_space = ocfs2_xa_bucket_check_space,
+ .xlo_can_reuse = ocfs2_xa_bucket_can_reuse,
+ .xlo_get_free_start = ocfs2_xa_bucket_get_free_start,
+ .xlo_wipe_namevalue = ocfs2_xa_bucket_wipe_namevalue,
+ .xlo_add_entry = ocfs2_xa_bucket_add_entry,
+ .xlo_add_namevalue = ocfs2_xa_bucket_add_namevalue,
+ .xlo_fill_value_buf = ocfs2_xa_bucket_fill_value_buf,
+};
+
+static unsigned int ocfs2_xa_value_clusters(struct ocfs2_xa_loc *loc)
+{
+ struct ocfs2_xattr_value_buf vb;
+
+ if (ocfs2_xattr_is_local(loc->xl_entry))
+ return 0;
+
+ ocfs2_xa_fill_value_buf(loc, &vb);
+ return le32_to_cpu(vb.vb_xv->xr_clusters);
+}
+
+static int ocfs2_xa_value_truncate(struct ocfs2_xa_loc *loc, u64 bytes,
+ struct ocfs2_xattr_set_ctxt *ctxt)
+{
+ int trunc_rc, access_rc;
+ struct ocfs2_xattr_value_buf vb;
+
+ ocfs2_xa_fill_value_buf(loc, &vb);
+ trunc_rc = ocfs2_xattr_value_truncate(loc->xl_inode, &vb, bytes,
+ ctxt);
+
+ /*
+ * The caller of ocfs2_xa_value_truncate() has already called
+ * ocfs2_xa_journal_access on the loc. However, The truncate code
+ * calls ocfs2_extend_trans(). This may commit the previous
+ * transaction and open a new one. If this is a bucket, truncate
+ * could leave only vb->vb_bh set up for journaling. Meanwhile,
+ * the caller is expecting to dirty the entire bucket. So we must
+ * reset the journal work. We do this even if truncate has failed,
+ * as it could have failed after committing the extend.
+ */
+ access_rc = ocfs2_xa_journal_access(ctxt->handle, loc,
+ OCFS2_JOURNAL_ACCESS_WRITE);
+
+ /* Errors in truncate take precedence */
+ return trunc_rc ? trunc_rc : access_rc;
+}
+
+static void ocfs2_xa_remove_entry(struct ocfs2_xa_loc *loc)
+{
+ int index, count;
+ struct ocfs2_xattr_header *xh = loc->xl_header;
+ struct ocfs2_xattr_entry *entry = loc->xl_entry;
+
+ ocfs2_xa_wipe_namevalue(loc);
+ loc->xl_entry = NULL;
+
+ le16_add_cpu(&xh->xh_count, -1);
+ count = le16_to_cpu(xh->xh_count);
+
+ /*
+ * Only zero out the entry if there are more remaining. This is
+ * important for an empty bucket, as it keeps track of the
+ * bucket's hash value. It doesn't hurt empty block storage.
+ */
+ if (count) {
+ index = ((char *)entry - (char *)&xh->xh_entries) /
+ sizeof(struct ocfs2_xattr_entry);
+ memmove(&xh->xh_entries[index], &xh->xh_entries[index + 1],
+ (count - index) * sizeof(struct ocfs2_xattr_entry));
+ memset(&xh->xh_entries[count], 0,
+ sizeof(struct ocfs2_xattr_entry));
+ }
}
/*
- * ocfs2_xattr_set_entry()
+ * If we have a problem adjusting the size of an external value during
+ * ocfs2_xa_prepare_entry() or ocfs2_xa_remove(), we may have an xattr
+ * in an intermediate state. For example, the value may be partially
+ * truncated.
+ *
+ * If the value tree hasn't changed, the extend/truncate went nowhere.
+ * We have nothing to do. The caller can treat it as a straight error.
*
- * Set extended attribute entry into inode or block.
+ * If the value tree got partially truncated, we now have a corrupted
+ * extended attribute. We're going to wipe its entry and leak the
+ * clusters. Better to leak some storage than leave a corrupt entry.
*
- * If extended attribute value size > OCFS2_XATTR_INLINE_SIZE,
- * We first insert tree root(ocfs2_xattr_value_root) with set_entry_local(),
- * then set value in B tree with set_value_outside().
+ * If the value tree grew, it obviously didn't grow enough for the
+ * new entry. We're not going to try and reclaim those clusters either.
+ * If there was already an external value there (orig_clusters != 0),
+ * the new clusters are attached safely and we can just leave the old
+ * value in place. If there was no external value there, we remove
+ * the entry.
+ *
+ * This way, the xattr block we store in the journal will be consistent.
+ * If the size change broke because of the journal, no changes will hit
+ * disk anyway.
*/
-static int ocfs2_xattr_set_entry(struct inode *inode,
- struct ocfs2_xattr_info *xi,
- struct ocfs2_xattr_search *xs,
- struct ocfs2_xattr_set_ctxt *ctxt,
- int flag)
-{
- struct ocfs2_xattr_entry *last;
- struct ocfs2_inode_info *oi = OCFS2_I(inode);
- struct ocfs2_dinode *di = (struct ocfs2_dinode *)xs->inode_bh->b_data;
- size_t min_offs = xs->end - xs->base, name_len = strlen(xi->name);
- size_t size_l = 0;
- handle_t *handle = ctxt->handle;
- int free, i, ret;
- struct ocfs2_xattr_info xi_l = {
- .name_index = xi->name_index,
- .name = xi->name,
- .value = xi->value,
- .value_len = xi->value_len,
- };
- struct ocfs2_xattr_value_buf vb = {
- .vb_bh = xs->xattr_bh,
- .vb_access = ocfs2_journal_access_di,
- };
+static void ocfs2_xa_cleanup_value_truncate(struct ocfs2_xa_loc *loc,
+ const char *what,
+ unsigned int orig_clusters)
+{
+ unsigned int new_clusters = ocfs2_xa_value_clusters(loc);
+ char *nameval_buf = ocfs2_xa_offset_pointer(loc,
+ le16_to_cpu(loc->xl_entry->xe_name_offset));
+
+ if (new_clusters < orig_clusters) {
+ mlog(ML_ERROR,
+ "Partial truncate while %s xattr %.*s. Leaking "
+ "%u clusters and removing the entry\n",
+ what, loc->xl_entry->xe_name_len, nameval_buf,
+ orig_clusters - new_clusters);
+ ocfs2_xa_remove_entry(loc);
+ } else if (!orig_clusters) {
+ mlog(ML_ERROR,
+ "Unable to allocate an external value for xattr "
+ "%.*s safely. Leaking %u clusters and removing the "
+ "entry\n",
+ loc->xl_entry->xe_name_len, nameval_buf,
+ new_clusters - orig_clusters);
+ ocfs2_xa_remove_entry(loc);
+ } else if (new_clusters > orig_clusters)
+ mlog(ML_ERROR,
+ "Unable to grow xattr %.*s safely. %u new clusters "
+ "have been added, but the value will not be "
+ "modified\n",
+ loc->xl_entry->xe_name_len, nameval_buf,
+ new_clusters - orig_clusters);
+}
+
+static int ocfs2_xa_remove(struct ocfs2_xa_loc *loc,
+ struct ocfs2_xattr_set_ctxt *ctxt)
+{
+ int rc = 0;
+ unsigned int orig_clusters;
+
+ if (!ocfs2_xattr_is_local(loc->xl_entry)) {
+ orig_clusters = ocfs2_xa_value_clusters(loc);
+ rc = ocfs2_xa_value_truncate(loc, 0, ctxt);
+ if (rc) {
+ mlog_errno(rc);
+ /*
+ * Since this is remove, we can return 0 if
+ * ocfs2_xa_cleanup_value_truncate() is going to
+ * wipe the entry anyway. So we check the
+ * cluster count as well.
+ */
+ if (orig_clusters != ocfs2_xa_value_clusters(loc))
+ rc = 0;
+ ocfs2_xa_cleanup_value_truncate(loc, "removing",
+ orig_clusters);
+ if (rc)
+ goto out;
+ }
+ }
- if (!(flag & OCFS2_INLINE_XATTR_FL)) {
- BUG_ON(xs->xattr_bh == xs->inode_bh);
- vb.vb_access = ocfs2_journal_access_xb;
- } else
- BUG_ON(xs->xattr_bh != xs->inode_bh);
+ ocfs2_xa_remove_entry(loc);
- /* Compute min_offs, last and free space. */
- last = xs->header->xh_entries;
+out:
+ return rc;
+}
- for (i = 0 ; i < le16_to_cpu(xs->header->xh_count); i++) {
- size_t offs = le16_to_cpu(last->xe_name_offset);
- if (offs < min_offs)
- min_offs = offs;
- last += 1;
- }
+static void ocfs2_xa_install_value_root(struct ocfs2_xa_loc *loc)
+{
+ int name_size = OCFS2_XATTR_SIZE(loc->xl_entry->xe_name_len);
+ char *nameval_buf;
- free = min_offs - ((void *)last - xs->base) - OCFS2_XATTR_HEADER_GAP;
- if (free < 0)
- return -EIO;
+ nameval_buf = ocfs2_xa_offset_pointer(loc,
+ le16_to_cpu(loc->xl_entry->xe_name_offset));
+ memcpy(nameval_buf + name_size, &def_xv, OCFS2_XATTR_ROOT_SIZE);
+}
- if (!xs->not_found) {
- size_t size = 0;
- if (ocfs2_xattr_is_local(xs->here))
- size = OCFS2_XATTR_SIZE(name_len) +
- OCFS2_XATTR_SIZE(le64_to_cpu(xs->here->xe_value_size));
- else
- size = OCFS2_XATTR_SIZE(name_len) +
- OCFS2_XATTR_ROOT_SIZE;
- free += (size + sizeof(struct ocfs2_xattr_entry));
- }
- /* Check free space in inode or block */
- if (xi->value && xi->value_len > OCFS2_XATTR_INLINE_SIZE) {
- if (free < sizeof(struct ocfs2_xattr_entry) +
- OCFS2_XATTR_SIZE(name_len) +
- OCFS2_XATTR_ROOT_SIZE) {
- ret = -ENOSPC;
- goto out;
+/*
+ * Take an existing entry and make it ready for the new value. This
+ * won't allocate space, but it may free space. It should be ready for
+ * ocfs2_xa_prepare_entry() to finish the work.
+ */
+static int ocfs2_xa_reuse_entry(struct ocfs2_xa_loc *loc,
+ struct ocfs2_xattr_info *xi,
+ struct ocfs2_xattr_set_ctxt *ctxt)
+{
+ int rc = 0;
+ int name_size = OCFS2_XATTR_SIZE(xi->xi_name_len);
+ unsigned int orig_clusters;
+ char *nameval_buf;
+ int xe_local = ocfs2_xattr_is_local(loc->xl_entry);
+ int xi_local = xi->xi_value_len <= OCFS2_XATTR_INLINE_SIZE;
+
+ BUG_ON(OCFS2_XATTR_SIZE(loc->xl_entry->xe_name_len) !=
+ name_size);
+
+ nameval_buf = ocfs2_xa_offset_pointer(loc,
+ le16_to_cpu(loc->xl_entry->xe_name_offset));
+ if (xe_local) {
+ memset(nameval_buf + name_size, 0,
+ namevalue_size_xe(loc->xl_entry) - name_size);
+ if (!xi_local)
+ ocfs2_xa_install_value_root(loc);
+ } else {
+ orig_clusters = ocfs2_xa_value_clusters(loc);
+ if (xi_local) {
+ rc = ocfs2_xa_value_truncate(loc, 0, ctxt);
+ if (rc < 0)
+ mlog_errno(rc);
+ else
+ memset(nameval_buf + name_size, 0,
+ namevalue_size_xe(loc->xl_entry) -
+ name_size);
+ } else if (le64_to_cpu(loc->xl_entry->xe_value_size) >
+ xi->xi_value_len) {
+ rc = ocfs2_xa_value_truncate(loc, xi->xi_value_len,
+ ctxt);
+ if (rc < 0)
+ mlog_errno(rc);
}
- size_l = OCFS2_XATTR_SIZE(name_len) + OCFS2_XATTR_ROOT_SIZE;
- xi_l.value = (void *)&def_xv;
- xi_l.value_len = OCFS2_XATTR_ROOT_SIZE;
- } else if (xi->value) {
- if (free < sizeof(struct ocfs2_xattr_entry) +
- OCFS2_XATTR_SIZE(name_len) +
- OCFS2_XATTR_SIZE(xi->value_len)) {
- ret = -ENOSPC;
+
+ if (rc) {
+ ocfs2_xa_cleanup_value_truncate(loc, "reusing",
+ orig_clusters);
goto out;
}
}
- if (!xs->not_found) {
- /* For existing extended attribute */
- size_t size = OCFS2_XATTR_SIZE(name_len) +
- OCFS2_XATTR_SIZE(le64_to_cpu(xs->here->xe_value_size));
- size_t offs = le16_to_cpu(xs->here->xe_name_offset);
- void *val = xs->base + offs;
+ loc->xl_entry->xe_value_size = cpu_to_le64(xi->xi_value_len);
+ ocfs2_xattr_set_local(loc->xl_entry, xi_local);
- if (ocfs2_xattr_is_local(xs->here) && size == size_l) {
- /* Replace existing local xattr with tree root */
- ret = ocfs2_xattr_set_value_outside(inode, xi, xs,
- ctxt, &vb, offs);
- if (ret < 0)
- mlog_errno(ret);
- goto out;
- } else if (!ocfs2_xattr_is_local(xs->here)) {
- /* For existing xattr which has value outside */
- vb.vb_xv = (struct ocfs2_xattr_value_root *)
- (val + OCFS2_XATTR_SIZE(name_len));
+out:
+ return rc;
+}
- if (xi->value_len > OCFS2_XATTR_INLINE_SIZE) {
- /*
- * If new value need set outside also,
- * first truncate old value to new value,
- * then set new value with set_value_outside().
- */
- ret = ocfs2_xattr_value_truncate(inode,
- &vb,
- xi->value_len,
- ctxt);
- if (ret < 0) {
- mlog_errno(ret);
- goto out;
- }
+/*
+ * Prepares loc->xl_entry to receive the new xattr. This includes
+ * properly setting up the name+value pair region. If loc->xl_entry
+ * already exists, it will take care of modifying it appropriately.
+ *
+ * Note that this modifies the data. You did journal_access already,
+ * right?
+ */
+static int ocfs2_xa_prepare_entry(struct ocfs2_xa_loc *loc,
+ struct ocfs2_xattr_info *xi,
+ u32 name_hash,
+ struct ocfs2_xattr_set_ctxt *ctxt)
+{
+ int rc = 0;
+ unsigned int orig_clusters;
+ __le64 orig_value_size = 0;
- ret = ocfs2_xattr_update_entry(inode,
- handle,
- xi,
- xs,
- &vb,
- offs);
- if (ret < 0) {
- mlog_errno(ret);
- goto out;
- }
+ rc = ocfs2_xa_check_space(loc, xi);
+ if (rc)
+ goto out;
- ret = __ocfs2_xattr_set_value_outside(inode,
- handle,
- &vb,
- xi->value,
- xi->value_len);
- if (ret < 0)
- mlog_errno(ret);
+ if (loc->xl_entry) {
+ if (ocfs2_xa_can_reuse_entry(loc, xi)) {
+ orig_value_size = loc->xl_entry->xe_value_size;
+ rc = ocfs2_xa_reuse_entry(loc, xi, ctxt);
+ if (rc)
+ goto out;
+ goto alloc_value;
+ }
+
+ if (!ocfs2_xattr_is_local(loc->xl_entry)) {
+ orig_clusters = ocfs2_xa_value_clusters(loc);
+ rc = ocfs2_xa_value_truncate(loc, 0, ctxt);
+ if (rc) {
+ mlog_errno(rc);
+ ocfs2_xa_cleanup_value_truncate(loc,
+ "overwriting",
+ orig_clusters);
goto out;
- } else {
- /*
- * If new value need set in local,
- * just trucate old value to zero.
- */
- ret = ocfs2_xattr_value_truncate(inode,
- &vb,
- 0,
- ctxt);
- if (ret < 0)
- mlog_errno(ret);
}
}
+ ocfs2_xa_wipe_namevalue(loc);
+ } else
+ ocfs2_xa_add_entry(loc, name_hash);
+
+ /*
+ * If we get here, we have a blank entry. Fill it. We grow our
+ * name+value pair back from the end.
+ */
+ ocfs2_xa_add_namevalue(loc, xi);
+ if (xi->xi_value_len > OCFS2_XATTR_INLINE_SIZE)
+ ocfs2_xa_install_value_root(loc);
+
+alloc_value:
+ if (xi->xi_value_len > OCFS2_XATTR_INLINE_SIZE) {
+ orig_clusters = ocfs2_xa_value_clusters(loc);
+ rc = ocfs2_xa_value_truncate(loc, xi->xi_value_len, ctxt);
+ if (rc < 0) {
+ /*
+ * If we tried to grow an existing external value,
+ * ocfs2_xa_cleanuP-value_truncate() is going to
+ * let it stand. We have to restore its original
+ * value size.
+ */
+ loc->xl_entry->xe_value_size = orig_value_size;
+ ocfs2_xa_cleanup_value_truncate(loc, "growing",
+ orig_clusters);
+ mlog_errno(rc);
+ }
}
- ret = ocfs2_journal_access_di(handle, INODE_CACHE(inode), xs->inode_bh,
+out:
+ return rc;
+}
+
+/*
+ * Store the value portion of the name+value pair. This will skip
+ * values that are stored externally. Their tree roots were set up
+ * by ocfs2_xa_prepare_entry().
+ */
+static int ocfs2_xa_store_value(struct ocfs2_xa_loc *loc,
+ struct ocfs2_xattr_info *xi,
+ struct ocfs2_xattr_set_ctxt *ctxt)
+{
+ int rc = 0;
+ int nameval_offset = le16_to_cpu(loc->xl_entry->xe_name_offset);
+ int name_size = OCFS2_XATTR_SIZE(xi->xi_name_len);
+ char *nameval_buf;
+ struct ocfs2_xattr_value_buf vb;
+
+ nameval_buf = ocfs2_xa_offset_pointer(loc, nameval_offset);
+ if (xi->xi_value_len > OCFS2_XATTR_INLINE_SIZE) {
+ ocfs2_xa_fill_value_buf(loc, &vb);
+ rc = __ocfs2_xattr_set_value_outside(loc->xl_inode,
+ ctxt->handle, &vb,
+ xi->xi_value,
+ xi->xi_value_len);
+ } else
+ memcpy(nameval_buf + name_size, xi->xi_value, xi->xi_value_len);
+
+ return rc;
+}
+
+static int ocfs2_xa_set(struct ocfs2_xa_loc *loc,
+ struct ocfs2_xattr_info *xi,
+ struct ocfs2_xattr_set_ctxt *ctxt)
+{
+ int ret;
+ u32 name_hash = ocfs2_xattr_name_hash(loc->xl_inode, xi->xi_name,
+ xi->xi_name_len);
+
+ ret = ocfs2_xa_journal_access(ctxt->handle, loc,
OCFS2_JOURNAL_ACCESS_WRITE);
if (ret) {
mlog_errno(ret);
goto out;
}
- if (!(flag & OCFS2_INLINE_XATTR_FL)) {
- ret = vb.vb_access(handle, INODE_CACHE(inode), vb.vb_bh,
- OCFS2_JOURNAL_ACCESS_WRITE);
- if (ret) {
- mlog_errno(ret);
- goto out;
- }
- }
-
/*
- * Set value in local, include set tree root in local.
- * This is the first step for value size >INLINE_SIZE.
+ * From here on out, everything is going to modify the buffer a
+ * little. Errors are going to leave the xattr header in a
+ * sane state. Thus, even with errors we dirty the sucker.
*/
- ocfs2_xattr_set_entry_local(inode, &xi_l, xs, last, min_offs);
- if (!(flag & OCFS2_INLINE_XATTR_FL)) {
- ret = ocfs2_journal_dirty(handle, xs->xattr_bh);
- if (ret < 0) {
- mlog_errno(ret);
- goto out;
- }
+ /* Don't worry, we are never called with !xi_value and !xl_entry */
+ if (!xi->xi_value) {
+ ret = ocfs2_xa_remove(loc, ctxt);
+ goto out_dirty;
}
- if (!(oi->ip_dyn_features & OCFS2_INLINE_XATTR_FL) &&
- (flag & OCFS2_INLINE_XATTR_FL)) {
- struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
- unsigned int xattrsize = osb->s_xattr_inline_size;
-
- /*
- * Adjust extent record count or inline data size
- * to reserve space for extended attribute.
- */
- if (oi->ip_dyn_features & OCFS2_INLINE_DATA_FL) {
- struct ocfs2_inline_data *idata = &di->id2.i_data;
- le16_add_cpu(&idata->id_count, -xattrsize);
- } else if (!(ocfs2_inode_is_fast_symlink(inode))) {
- struct ocfs2_extent_list *el = &di->id2.i_list;
- le16_add_cpu(&el->l_count, -(xattrsize /
- sizeof(struct ocfs2_extent_rec)));
- }
- di->i_xattr_inline_size = cpu_to_le16(xattrsize);
+ ret = ocfs2_xa_prepare_entry(loc, xi, name_hash, ctxt);
+ if (ret) {
+ if (ret != -ENOSPC)
+ mlog_errno(ret);
+ goto out_dirty;
}
- /* Update xattr flag */
- spin_lock(&oi->ip_lock);
- oi->ip_dyn_features |= flag;
- di->i_dyn_features = cpu_to_le16(oi->ip_dyn_features);
- spin_unlock(&oi->ip_lock);
- ret = ocfs2_journal_dirty(handle, xs->inode_bh);
- if (ret < 0)
+ ret = ocfs2_xa_store_value(loc, xi, ctxt);
+ if (ret)
mlog_errno(ret);
- if (!ret && xi->value_len > OCFS2_XATTR_INLINE_SIZE) {
- /*
- * Set value outside in B tree.
- * This is the second step for value size > INLINE_SIZE.
- */
- size_t offs = le16_to_cpu(xs->here->xe_name_offset);
- ret = ocfs2_xattr_set_value_outside(inode, xi, xs, ctxt,
- &vb, offs);
- if (ret < 0) {
- int ret2;
+out_dirty:
+ ocfs2_xa_journal_dirty(ctxt->handle, loc);
- mlog_errno(ret);
- /*
- * If set value outside failed, we have to clean
- * the junk tree root we have already set in local.
- */
- ret2 = ocfs2_xattr_cleanup(inode, ctxt->handle,
- xi, xs, &vb, offs);
- if (ret2 < 0)
- mlog_errno(ret2);
- }
- }
out:
return ret;
}
+static void ocfs2_init_dinode_xa_loc(struct ocfs2_xa_loc *loc,
+ struct inode *inode,
+ struct buffer_head *bh,
+ struct ocfs2_xattr_entry *entry)
+{
+ struct ocfs2_dinode *di = (struct ocfs2_dinode *)bh->b_data;
+
+ BUG_ON(!(OCFS2_I(inode)->ip_dyn_features & OCFS2_INLINE_XATTR_FL));
+
+ loc->xl_inode = inode;
+ loc->xl_ops = &ocfs2_xa_block_loc_ops;
+ loc->xl_storage = bh;
+ loc->xl_entry = entry;
+ loc->xl_size = le16_to_cpu(di->i_xattr_inline_size);
+ loc->xl_header =
+ (struct ocfs2_xattr_header *)(bh->b_data + bh->b_size -
+ loc->xl_size);
+}
+
+static void ocfs2_init_xattr_block_xa_loc(struct ocfs2_xa_loc *loc,
+ struct inode *inode,
+ struct buffer_head *bh,
+ struct ocfs2_xattr_entry *entry)
+{
+ struct ocfs2_xattr_block *xb =
+ (struct ocfs2_xattr_block *)bh->b_data;
+
+ BUG_ON(le16_to_cpu(xb->xb_flags) & OCFS2_XATTR_INDEXED);
+
+ loc->xl_inode = inode;
+ loc->xl_ops = &ocfs2_xa_block_loc_ops;
+ loc->xl_storage = bh;
+ loc->xl_header = &(xb->xb_attrs.xb_header);
+ loc->xl_entry = entry;
+ loc->xl_size = bh->b_size - offsetof(struct ocfs2_xattr_block,
+ xb_attrs.xb_header);
+}
+
+static void ocfs2_init_xattr_bucket_xa_loc(struct ocfs2_xa_loc *loc,
+ struct ocfs2_xattr_bucket *bucket,
+ struct ocfs2_xattr_entry *entry)
+{
+ loc->xl_inode = bucket->bu_inode;
+ loc->xl_ops = &ocfs2_xa_bucket_loc_ops;
+ loc->xl_storage = bucket;
+ loc->xl_header = bucket_xh(bucket);
+ loc->xl_entry = entry;
+ loc->xl_size = OCFS2_XATTR_BUCKET_SIZE;
+}
+
/*
* In xattr remove, if it is stored outside and refcounted, we may have
* the chance to split the refcount tree. So need the allocators.
@@ -2149,6 +2683,55 @@ static int ocfs2_xattr_ibody_find(struct inode *inode,
return 0;
}
+static int ocfs2_xattr_ibody_init(struct inode *inode,
+ struct buffer_head *di_bh,
+ struct ocfs2_xattr_set_ctxt *ctxt)
+{
+ int ret;
+ struct ocfs2_inode_info *oi = OCFS2_I(inode);
+ struct ocfs2_dinode *di = (struct ocfs2_dinode *)di_bh->b_data;
+ struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
+ unsigned int xattrsize = osb->s_xattr_inline_size;
+
+ if (!ocfs2_xattr_has_space_inline(inode, di)) {
+ ret = -ENOSPC;
+ goto out;
+ }
+
+ ret = ocfs2_journal_access_di(ctxt->handle, INODE_CACHE(inode), di_bh,
+ OCFS2_JOURNAL_ACCESS_WRITE);
+ if (ret) {
+ mlog_errno(ret);
+ goto out;
+ }
+
+ /*
+ * Adjust extent record count or inline data size
+ * to reserve space for extended attribute.
+ */
+ if (oi->ip_dyn_features & OCFS2_INLINE_DATA_FL) {
+ struct ocfs2_inline_data *idata = &di->id2.i_data;
+ le16_add_cpu(&idata->id_count, -xattrsize);
+ } else if (!(ocfs2_inode_is_fast_symlink(inode))) {
+ struct ocfs2_extent_list *el = &di->id2.i_list;
+ le16_add_cpu(&el->l_count, -(xattrsize /
+ sizeof(struct ocfs2_extent_rec)));
+ }
+ di->i_xattr_inline_size = cpu_to_le16(xattrsize);
+
+ spin_lock(&oi->ip_lock);
+ oi->ip_dyn_features |= OCFS2_INLINE_XATTR_FL|OCFS2_HAS_XATTR_FL;
+ di->i_dyn_features = cpu_to_le16(oi->ip_dyn_features);
+ spin_unlock(&oi->ip_lock);
+
+ ret = ocfs2_journal_dirty(ctxt->handle, di_bh);
+ if (ret < 0)
+ mlog_errno(ret);
+
+out:
+ return ret;
+}
+
/*
* ocfs2_xattr_ibody_set()
*
@@ -2160,9 +2743,10 @@ static int ocfs2_xattr_ibody_set(struct inode *inode,
struct ocfs2_xattr_search *xs,
struct ocfs2_xattr_set_ctxt *ctxt)
{
+ int ret;
struct ocfs2_inode_info *oi = OCFS2_I(inode);
struct ocfs2_dinode *di = (struct ocfs2_dinode *)xs->inode_bh->b_data;
- int ret;
+ struct ocfs2_xa_loc loc;
if (inode->i_sb->s_blocksize == OCFS2_MIN_BLOCKSIZE)
return -ENOSPC;
@@ -2175,8 +2759,25 @@ static int ocfs2_xattr_ibody_set(struct inode *inode,
}
}
- ret = ocfs2_xattr_set_entry(inode, xi, xs, ctxt,
- (OCFS2_INLINE_XATTR_FL | OCFS2_HAS_XATTR_FL));
+ if (!(oi->ip_dyn_features & OCFS2_INLINE_XATTR_FL)) {
+ ret = ocfs2_xattr_ibody_init(inode, xs->inode_bh, ctxt);
+ if (ret) {
+ if (ret != -ENOSPC)
+ mlog_errno(ret);
+ goto out;
+ }
+ }
+
+ ocfs2_init_dinode_xa_loc(&loc, inode, xs->inode_bh,
+ xs->not_found ? NULL : xs->here);
+ ret = ocfs2_xa_set(&loc, xi, ctxt);
+ if (ret) {
+ if (ret != -ENOSPC)
+ mlog_errno(ret);
+ goto out;
+ }
+ xs->here = loc.xl_entry;
+
out:
up_write(&oi->ip_alloc_sem);
@@ -2236,12 +2837,11 @@ cleanup:
return ret;
}
-static int ocfs2_create_xattr_block(handle_t *handle,
- struct inode *inode,
+static int ocfs2_create_xattr_block(struct inode *inode,
struct buffer_head *inode_bh,
- struct ocfs2_alloc_context *meta_ac,
- struct buffer_head **ret_bh,
- int indexed)
+ struct ocfs2_xattr_set_ctxt *ctxt,
+ int indexed,
+ struct buffer_head **ret_bh)
{
int ret;
u16 suballoc_bit_start;
@@ -2252,14 +2852,14 @@ static int ocfs2_create_xattr_block(handle_t *handle,
struct buffer_head *new_bh = NULL;
struct ocfs2_xattr_block *xblk;
- ret = ocfs2_journal_access_di(handle, INODE_CACHE(inode), inode_bh,
- OCFS2_JOURNAL_ACCESS_CREATE);
+ ret = ocfs2_journal_access_di(ctxt->handle, INODE_CACHE(inode),
+ inode_bh, OCFS2_JOURNAL_ACCESS_CREATE);
if (ret < 0) {
mlog_errno(ret);
goto end;
}
- ret = ocfs2_claim_metadata(osb, handle, meta_ac, 1,
+ ret = ocfs2_claim_metadata(osb, ctxt->handle, ctxt->meta_ac, 1,
&suballoc_bit_start, &num_got,
&first_blkno);
if (ret < 0) {
@@ -2270,7 +2870,7 @@ static int ocfs2_create_xattr_block(handle_t *handle,
new_bh = sb_getblk(inode->i_sb, first_blkno);
ocfs2_set_new_buffer_uptodate(INODE_CACHE(inode), new_bh);
- ret = ocfs2_journal_access_xb(handle, INODE_CACHE(inode),
+ ret = ocfs2_journal_access_xb(ctxt->handle, INODE_CACHE(inode),
new_bh,
OCFS2_JOURNAL_ACCESS_CREATE);
if (ret < 0) {
@@ -2282,11 +2882,10 @@ static int ocfs2_create_xattr_block(handle_t *handle,
xblk = (struct ocfs2_xattr_block *)new_bh->b_data;
memset(xblk, 0, inode->i_sb->s_blocksize);
strcpy((void *)xblk, OCFS2_XATTR_BLOCK_SIGNATURE);
- xblk->xb_suballoc_slot = cpu_to_le16(osb->slot_num);
+ xblk->xb_suballoc_slot = cpu_to_le16(ctxt->meta_ac->ac_alloc_slot);
xblk->xb_suballoc_bit = cpu_to_le16(suballoc_bit_start);
xblk->xb_fs_generation = cpu_to_le32(osb->fs_generation);
xblk->xb_blkno = cpu_to_le64(first_blkno);
-
if (indexed) {
struct ocfs2_xattr_tree_root *xr = &xblk->xb_attrs.xb_root;
xr->xt_clusters = cpu_to_le32(1);
@@ -2297,14 +2896,17 @@ static int ocfs2_create_xattr_block(handle_t *handle,
xr->xt_list.l_next_free_rec = cpu_to_le16(1);
xblk->xb_flags = cpu_to_le16(OCFS2_XATTR_INDEXED);
}
+ ocfs2_journal_dirty(ctxt->handle, new_bh);
- ret = ocfs2_journal_dirty(handle, new_bh);
- if (ret < 0) {
- mlog_errno(ret);
- goto end;
- }
+ /* Add it to the inode */
di->i_xattr_loc = cpu_to_le64(first_blkno);
- ocfs2_journal_dirty(handle, inode_bh);
+
+ spin_lock(&OCFS2_I(inode)->ip_lock);
+ OCFS2_I(inode)->ip_dyn_features |= OCFS2_HAS_XATTR_FL;
+ di->i_dyn_features = cpu_to_le16(OCFS2_I(inode)->ip_dyn_features);
+ spin_unlock(&OCFS2_I(inode)->ip_lock);
+
+ ocfs2_journal_dirty(ctxt->handle, inode_bh);
*ret_bh = new_bh;
new_bh = NULL;
@@ -2326,13 +2928,13 @@ static int ocfs2_xattr_block_set(struct inode *inode,
struct ocfs2_xattr_set_ctxt *ctxt)
{
struct buffer_head *new_bh = NULL;
- handle_t *handle = ctxt->handle;
struct ocfs2_xattr_block *xblk = NULL;
int ret;
+ struct ocfs2_xa_loc loc;
if (!xs->xattr_bh) {
- ret = ocfs2_create_xattr_block(handle, inode, xs->inode_bh,
- ctxt->meta_ac, &new_bh, 0);
+ ret = ocfs2_create_xattr_block(inode, xs->inode_bh, ctxt,
+ 0, &new_bh);
if (ret) {
mlog_errno(ret);
goto end;
@@ -2348,21 +2950,25 @@ static int ocfs2_xattr_block_set(struct inode *inode,
xblk = (struct ocfs2_xattr_block *)xs->xattr_bh->b_data;
if (!(le16_to_cpu(xblk->xb_flags) & OCFS2_XATTR_INDEXED)) {
- /* Set extended attribute into external block */
- ret = ocfs2_xattr_set_entry(inode, xi, xs, ctxt,
- OCFS2_HAS_XATTR_FL);
- if (!ret || ret != -ENOSPC)
- goto end;
+ ocfs2_init_xattr_block_xa_loc(&loc, inode, xs->xattr_bh,
+ xs->not_found ? NULL : xs->here);
- ret = ocfs2_xattr_create_index_block(inode, xs, ctxt);
- if (ret)
+ ret = ocfs2_xa_set(&loc, xi, ctxt);
+ if (!ret)
+ xs->here = loc.xl_entry;
+ else if (ret != -ENOSPC)
goto end;
+ else {
+ ret = ocfs2_xattr_create_index_block(inode, xs, ctxt);
+ if (ret)
+ goto end;
+ }
}
- ret = ocfs2_xattr_set_entry_index_block(inode, xi, xs, ctxt);
+ if (le16_to_cpu(xblk->xb_flags) & OCFS2_XATTR_INDEXED)
+ ret = ocfs2_xattr_set_entry_index_block(inode, xi, xs, ctxt);
end:
-
return ret;
}
@@ -2371,7 +2977,6 @@ static int ocfs2_xattr_can_be_in_inode(struct inode *inode,
struct ocfs2_xattr_info *xi,
struct ocfs2_xattr_search *xs)
{
- u64 value_size;
struct ocfs2_xattr_entry *last;
int free, i;
size_t min_offs = xs->end - xs->base;
@@ -2394,13 +2999,7 @@ static int ocfs2_xattr_can_be_in_inode(struct inode *inode,
BUG_ON(!xs->not_found);
- if (xi->value_len > OCFS2_XATTR_INLINE_SIZE)
- value_size = OCFS2_XATTR_ROOT_SIZE;
- else
- value_size = OCFS2_XATTR_SIZE(xi->value_len);
-
- if (free >= sizeof(struct ocfs2_xattr_entry) +
- OCFS2_XATTR_SIZE(strlen(xi->name)) + value_size)
+ if (free >= (sizeof(struct ocfs2_xattr_entry) + namevalue_size_xi(xi)))
return 1;
return 0;
@@ -2424,7 +3023,7 @@ static int ocfs2_calc_xattr_set_need(struct inode *inode,
char *base = NULL;
int name_offset, name_len = 0;
u32 new_clusters = ocfs2_clusters_for_bytes(inode->i_sb,
- xi->value_len);
+ xi->xi_value_len);
u64 value_size;
/*
@@ -2432,14 +3031,14 @@ static int ocfs2_calc_xattr_set_need(struct inode *inode,
* No matter whether we replace an old one or add a new one,
* we need this for writing.
*/
- if (xi->value_len > OCFS2_XATTR_INLINE_SIZE)
+ if (xi->xi_value_len > OCFS2_XATTR_INLINE_SIZE)
credits += new_clusters *
ocfs2_clusters_to_blocks(inode->i_sb, 1);
if (xis->not_found && xbs->not_found) {
credits += ocfs2_blocks_per_xattr_bucket(inode->i_sb);
- if (xi->value_len > OCFS2_XATTR_INLINE_SIZE) {
+ if (xi->xi_value_len > OCFS2_XATTR_INLINE_SIZE) {
clusters_add += new_clusters;
credits += ocfs2_calc_extend_credits(inode->i_sb,
&def_xv.xv.xr_list,
@@ -2484,7 +3083,7 @@ static int ocfs2_calc_xattr_set_need(struct inode *inode,
* The credits for removing the value tree will be extended
* by ocfs2_remove_extent itself.
*/
- if (!xi->value) {
+ if (!xi->xi_value) {
if (!ocfs2_xattr_is_local(xe))
credits += ocfs2_remove_extent_credits(inode->i_sb);
@@ -2514,7 +3113,7 @@ static int ocfs2_calc_xattr_set_need(struct inode *inode,
}
}
- if (xi->value_len > OCFS2_XATTR_INLINE_SIZE) {
+ if (xi->xi_value_len > OCFS2_XATTR_INLINE_SIZE) {
/* the new values will be stored outside. */
u32 old_clusters = 0;
@@ -2547,9 +3146,10 @@ static int ocfs2_calc_xattr_set_need(struct inode *inode,
* value, we don't need any allocation, otherwise we have
* to guess metadata allocation.
*/
- if ((ocfs2_xattr_is_local(xe) && value_size >= xi->value_len) ||
+ if ((ocfs2_xattr_is_local(xe) &&
+ (value_size >= xi->xi_value_len)) ||
(!ocfs2_xattr_is_local(xe) &&
- OCFS2_XATTR_ROOT_SIZE >= xi->value_len))
+ OCFS2_XATTR_ROOT_SIZE >= xi->xi_value_len))
goto out;
}
@@ -2639,7 +3239,7 @@ static int ocfs2_init_xattr_set_ctxt(struct inode *inode,
meta_add += extra_meta;
mlog(0, "Set xattr %s, reserve meta blocks = %d, clusters = %d, "
- "credits = %d\n", xi->name, meta_add, clusters_add, *credits);
+ "credits = %d\n", xi->xi_name, meta_add, clusters_add, *credits);
if (meta_add) {
ret = ocfs2_reserve_new_metadata_blocks(osb, meta_add,
@@ -2679,7 +3279,7 @@ static int __ocfs2_xattr_set_handle(struct inode *inode,
{
int ret = 0, credits, old_found;
- if (!xi->value) {
+ if (!xi->xi_value) {
/* Remove existing extended attribute */
if (!xis->not_found)
ret = ocfs2_xattr_ibody_set(inode, xi, xis, ctxt);
@@ -2693,8 +3293,8 @@ static int __ocfs2_xattr_set_handle(struct inode *inode,
* If succeed and that extended attribute existing in
* external block, then we will remove it.
*/
- xi->value = NULL;
- xi->value_len = 0;
+ xi->xi_value = NULL;
+ xi->xi_value_len = 0;
old_found = xis->not_found;
xis->not_found = -ENODATA;
@@ -2722,8 +3322,8 @@ static int __ocfs2_xattr_set_handle(struct inode *inode,
} else if (ret == -ENOSPC) {
if (di->i_xattr_loc && !xbs->xattr_bh) {
ret = ocfs2_xattr_block_find(inode,
- xi->name_index,
- xi->name, xbs);
+ xi->xi_name_index,
+ xi->xi_name, xbs);
if (ret)
goto out;
@@ -2762,8 +3362,8 @@ static int __ocfs2_xattr_set_handle(struct inode *inode,
* If succeed and that extended attribute
* existing in inode, we will remove it.
*/
- xi->value = NULL;
- xi->value_len = 0;
+ xi->xi_value = NULL;
+ xi->xi_value_len = 0;
xbs->not_found = -ENODATA;
ret = ocfs2_calc_xattr_set_need(inode,
di,
@@ -2829,10 +3429,11 @@ int ocfs2_xattr_set_handle(handle_t *handle,
int ret;
struct ocfs2_xattr_info xi = {
- .name_index = name_index,
- .name = name,
- .value = value,
- .value_len = value_len,
+ .xi_name_index = name_index,
+ .xi_name = name,
+ .xi_name_len = strlen(name),
+ .xi_value = value,
+ .xi_value_len = value_len,
};
struct ocfs2_xattr_search xis = {
@@ -2912,10 +3513,11 @@ int ocfs2_xattr_set(struct inode *inode,
struct ocfs2_refcount_tree *ref_tree = NULL;
struct ocfs2_xattr_info xi = {
- .name_index = name_index,
- .name = name,
- .value = value,
- .value_len = value_len,
+ .xi_name_index = name_index,
+ .xi_name = name,
+ .xi_name_len = strlen(name),
+ .xi_value = value,
+ .xi_value_len = value_len,
};
struct ocfs2_xattr_search xis = {
@@ -3759,7 +4361,7 @@ static int ocfs2_defrag_xattr_bucket(struct inode *inode,
struct ocfs2_xattr_bucket *bucket)
{
int ret, i;
- size_t end, offset, len, value_len;
+ size_t end, offset, len;
struct ocfs2_xattr_header *xh;
char *entries, *buf, *bucket_buf = NULL;
u64 blkno = bucket_blkno(bucket);
@@ -3813,12 +4415,7 @@ static int ocfs2_defrag_xattr_bucket(struct inode *inode,
end = OCFS2_XATTR_BUCKET_SIZE;
for (i = 0; i < le16_to_cpu(xh->xh_count); i++, xe++) {
offset = le16_to_cpu(xe->xe_name_offset);
- if (ocfs2_xattr_is_local(xe))
- value_len = OCFS2_XATTR_SIZE(
- le64_to_cpu(xe->xe_value_size));
- else
- value_len = OCFS2_XATTR_ROOT_SIZE;
- len = OCFS2_XATTR_SIZE(xe->xe_name_len) + value_len;
+ len = namevalue_size_xe(xe);
/*
* We must make sure that the name/value pair
@@ -4007,7 +4604,7 @@ static int ocfs2_divide_xattr_bucket(struct inode *inode,
int new_bucket_head)
{
int ret, i;
- int count, start, len, name_value_len = 0, xe_len, name_offset = 0;
+ int count, start, len, name_value_len = 0, name_offset = 0;
struct ocfs2_xattr_bucket *s_bucket = NULL, *t_bucket = NULL;
struct ocfs2_xattr_header *xh;
struct ocfs2_xattr_entry *xe;
@@ -4098,13 +4695,7 @@ static int ocfs2_divide_xattr_bucket(struct inode *inode,
name_value_len = 0;
for (i = 0; i < start; i++) {
xe = &xh->xh_entries[i];
- xe_len = OCFS2_XATTR_SIZE(xe->xe_name_len);
- if (ocfs2_xattr_is_local(xe))
- xe_len +=
- OCFS2_XATTR_SIZE(le64_to_cpu(xe->xe_value_size));
- else
- xe_len += OCFS2_XATTR_ROOT_SIZE;
- name_value_len += xe_len;
+ name_value_len += namevalue_size_xe(xe);
if (le16_to_cpu(xe->xe_name_offset) < name_offset)
name_offset = le16_to_cpu(xe->xe_name_offset);
}
@@ -4134,12 +4725,6 @@ static int ocfs2_divide_xattr_bucket(struct inode *inode,
xh->xh_free_start = cpu_to_le16(OCFS2_XATTR_BUCKET_SIZE);
for (i = 0; i < le16_to_cpu(xh->xh_count); i++) {
xe = &xh->xh_entries[i];
- xe_len = OCFS2_XATTR_SIZE(xe->xe_name_len);
- if (ocfs2_xattr_is_local(xe))
- xe_len +=
- OCFS2_XATTR_SIZE(le64_to_cpu(xe->xe_value_size));
- else
- xe_len += OCFS2_XATTR_ROOT_SIZE;
if (le16_to_cpu(xe->xe_name_offset) <
le16_to_cpu(xh->xh_free_start))
xh->xh_free_start = xe->xe_name_offset;
@@ -4751,195 +5336,6 @@ static inline char *ocfs2_xattr_bucket_get_val(struct inode *inode,
}
/*
- * Handle the normal xattr set, including replace, delete and new.
- *
- * Note: "local" indicates the real data's locality. So we can't
- * just its bucket locality by its length.
- */
-static void ocfs2_xattr_set_entry_normal(struct inode *inode,
- struct ocfs2_xattr_info *xi,
- struct ocfs2_xattr_search *xs,
- u32 name_hash,
- int local)
-{
- struct ocfs2_xattr_entry *last, *xe;
- int name_len = strlen(xi->name);
- struct ocfs2_xattr_header *xh = xs->header;
- u16 count = le16_to_cpu(xh->xh_count), start;
- size_t blocksize = inode->i_sb->s_blocksize;
- char *val;
- size_t offs, size, new_size;
-
- last = &xh->xh_entries[count];
- if (!xs->not_found) {
- xe = xs->here;
- offs = le16_to_cpu(xe->xe_name_offset);
- if (ocfs2_xattr_is_local(xe))
- size = OCFS2_XATTR_SIZE(name_len) +
- OCFS2_XATTR_SIZE(le64_to_cpu(xe->xe_value_size));
- else
- size = OCFS2_XATTR_SIZE(name_len) +
- OCFS2_XATTR_SIZE(OCFS2_XATTR_ROOT_SIZE);
-
- /*
- * If the new value will be stored outside, xi->value has been
- * initalized as an empty ocfs2_xattr_value_root, and the same
- * goes with xi->value_len, so we can set new_size safely here.
- * See ocfs2_xattr_set_in_bucket.
- */
- new_size = OCFS2_XATTR_SIZE(name_len) +
- OCFS2_XATTR_SIZE(xi->value_len);
-
- le16_add_cpu(&xh->xh_name_value_len, -size);
- if (xi->value) {
- if (new_size > size)
- goto set_new_name_value;
-
- /* Now replace the old value with new one. */
- if (local)
- xe->xe_value_size = cpu_to_le64(xi->value_len);
- else
- xe->xe_value_size = 0;
-
- val = ocfs2_xattr_bucket_get_val(inode,
- xs->bucket, offs);
- memset(val + OCFS2_XATTR_SIZE(name_len), 0,
- size - OCFS2_XATTR_SIZE(name_len));
- if (OCFS2_XATTR_SIZE(xi->value_len) > 0)
- memcpy(val + OCFS2_XATTR_SIZE(name_len),
- xi->value, xi->value_len);
-
- le16_add_cpu(&xh->xh_name_value_len, new_size);
- ocfs2_xattr_set_local(xe, local);
- return;
- } else {
- /*
- * Remove the old entry if there is more than one.
- * We don't remove the last entry so that we can
- * use it to indicate the hash value of the empty
- * bucket.
- */
- last -= 1;
- le16_add_cpu(&xh->xh_count, -1);
- if (xh->xh_count) {
- memmove(xe, xe + 1,
- (void *)last - (void *)xe);
- memset(last, 0,
- sizeof(struct ocfs2_xattr_entry));
- } else
- xh->xh_free_start =
- cpu_to_le16(OCFS2_XATTR_BUCKET_SIZE);
-
- return;
- }
- } else {
- /* find a new entry for insert. */
- int low = 0, high = count - 1, tmp;
- struct ocfs2_xattr_entry *tmp_xe;
-
- while (low <= high && count) {
- tmp = (low + high) / 2;
- tmp_xe = &xh->xh_entries[tmp];
-
- if (name_hash > le32_to_cpu(tmp_xe->xe_name_hash))
- low = tmp + 1;
- else if (name_hash <
- le32_to_cpu(tmp_xe->xe_name_hash))
- high = tmp - 1;
- else {
- low = tmp;
- break;
- }
- }
-
- xe = &xh->xh_entries[low];
- if (low != count)
- memmove(xe + 1, xe, (void *)last - (void *)xe);
-
- le16_add_cpu(&xh->xh_count, 1);
- memset(xe, 0, sizeof(struct ocfs2_xattr_entry));
- xe->xe_name_hash = cpu_to_le32(name_hash);
- xe->xe_name_len = name_len;
- ocfs2_xattr_set_type(xe, xi->name_index);
- }
-
-set_new_name_value:
- /* Insert the new name+value. */
- size = OCFS2_XATTR_SIZE(name_len) + OCFS2_XATTR_SIZE(xi->value_len);
-
- /*
- * We must make sure that the name/value pair
- * exists in the same block.
- */
- offs = le16_to_cpu(xh->xh_free_start);
- start = offs - size;
-
- if (start >> inode->i_sb->s_blocksize_bits !=
- (offs - 1) >> inode->i_sb->s_blocksize_bits) {
- offs = offs - offs % blocksize;
- xh->xh_free_start = cpu_to_le16(offs);
- }
-
- val = ocfs2_xattr_bucket_get_val(inode, xs->bucket, offs - size);
- xe->xe_name_offset = cpu_to_le16(offs - size);
-
- memset(val, 0, size);
- memcpy(val, xi->name, name_len);
- memcpy(val + OCFS2_XATTR_SIZE(name_len), xi->value, xi->value_len);
-
- xe->xe_value_size = cpu_to_le64(xi->value_len);
- ocfs2_xattr_set_local(xe, local);
- xs->here = xe;
- le16_add_cpu(&xh->xh_free_start, -size);
- le16_add_cpu(&xh->xh_name_value_len, size);
-
- return;
-}
-
-/*
- * Set the xattr entry in the specified bucket.
- * The bucket is indicated by xs->bucket and it should have the enough
- * space for the xattr insertion.
- */
-static int ocfs2_xattr_set_entry_in_bucket(struct inode *inode,
- handle_t *handle,
- struct ocfs2_xattr_info *xi,
- struct ocfs2_xattr_search *xs,
- u32 name_hash,
- int local)
-{
- int ret;
- u64 blkno;
-
- mlog(0, "Set xattr entry len = %lu index = %d in bucket %llu\n",
- (unsigned long)xi->value_len, xi->name_index,
- (unsigned long long)bucket_blkno(xs->bucket));
-
- if (!xs->bucket->bu_bhs[1]) {
- blkno = bucket_blkno(xs->bucket);
- ocfs2_xattr_bucket_relse(xs->bucket);
- ret = ocfs2_read_xattr_bucket(xs->bucket, blkno);
- if (ret) {
- mlog_errno(ret);
- goto out;
- }
- }
-
- ret = ocfs2_xattr_bucket_journal_access(handle, xs->bucket,
- OCFS2_JOURNAL_ACCESS_WRITE);
- if (ret < 0) {
- mlog_errno(ret);
- goto out;
- }
-
- ocfs2_xattr_set_entry_normal(inode, xi, xs, name_hash, local);
- ocfs2_xattr_bucket_journal_dirty(handle, xs->bucket);
-
-out:
- return ret;
-}
-
-/*
* Truncate the specified xe_off entry in xattr bucket.
* bucket is indicated by header_bh and len is the new length.
* Both the ocfs2_xattr_value_root and the entry will be updated here.
@@ -5009,66 +5405,6 @@ out:
return ret;
}
-static int ocfs2_xattr_bucket_value_truncate_xs(struct inode *inode,
- struct ocfs2_xattr_search *xs,
- int len,
- struct ocfs2_xattr_set_ctxt *ctxt)
-{
- int ret, offset;
- struct ocfs2_xattr_entry *xe = xs->here;
- struct ocfs2_xattr_header *xh = (struct ocfs2_xattr_header *)xs->base;
-
- BUG_ON(!xs->bucket->bu_bhs[0] || !xe || ocfs2_xattr_is_local(xe));
-
- offset = xe - xh->xh_entries;
- ret = ocfs2_xattr_bucket_value_truncate(inode, xs->bucket,
- offset, len, ctxt);
- if (ret)
- mlog_errno(ret);
-
- return ret;
-}
-
-static int ocfs2_xattr_bucket_set_value_outside(struct inode *inode,
- handle_t *handle,
- struct ocfs2_xattr_search *xs,
- char *val,
- int value_len)
-{
- int ret, offset, block_off;
- struct ocfs2_xattr_value_root *xv;
- struct ocfs2_xattr_entry *xe = xs->here;
- struct ocfs2_xattr_header *xh = bucket_xh(xs->bucket);
- void *base;
- struct ocfs2_xattr_value_buf vb = {
- .vb_access = ocfs2_journal_access,
- };
-
- BUG_ON(!xs->base || !xe || ocfs2_xattr_is_local(xe));
-
- ret = ocfs2_xattr_bucket_get_name_value(inode->i_sb, xh,
- xe - xh->xh_entries,
- &block_off,
- &offset);
- if (ret) {
- mlog_errno(ret);
- goto out;
- }
-
- base = bucket_block(xs->bucket, block_off);
- xv = (struct ocfs2_xattr_value_root *)(base + offset +
- OCFS2_XATTR_SIZE(xe->xe_name_len));
-
- vb.vb_xv = xv;
- vb.vb_bh = xs->bucket->bu_bhs[block_off];
- ret = __ocfs2_xattr_set_value_outside(inode, handle,
- &vb, val, value_len);
- if (ret)
- mlog_errno(ret);
-out:
- return ret;
-}
-
static int ocfs2_rm_xattr_cluster(struct inode *inode,
struct buffer_head *root_bh,
u64 blkno,
@@ -5167,128 +5503,6 @@ out:
return ret;
}
-static void ocfs2_xattr_bucket_remove_xs(struct inode *inode,
- handle_t *handle,
- struct ocfs2_xattr_search *xs)
-{
- struct ocfs2_xattr_header *xh = bucket_xh(xs->bucket);
- struct ocfs2_xattr_entry *last = &xh->xh_entries[
- le16_to_cpu(xh->xh_count) - 1];
- int ret = 0;
-
- ret = ocfs2_xattr_bucket_journal_access(handle, xs->bucket,
- OCFS2_JOURNAL_ACCESS_WRITE);
- if (ret) {
- mlog_errno(ret);
- return;
- }
-
- /* Remove the old entry. */
- memmove(xs->here, xs->here + 1,
- (void *)last - (void *)xs->here);
- memset(last, 0, sizeof(struct ocfs2_xattr_entry));
- le16_add_cpu(&xh->xh_count, -1);
-
- ocfs2_xattr_bucket_journal_dirty(handle, xs->bucket);
-}
-
-/*
- * Set the xattr name/value in the bucket specified in xs.
- *
- * As the new value in xi may be stored in the bucket or in an outside cluster,
- * we divide the whole process into 3 steps:
- * 1. insert name/value in the bucket(ocfs2_xattr_set_entry_in_bucket)
- * 2. truncate of the outside cluster(ocfs2_xattr_bucket_value_truncate_xs)
- * 3. Set the value to the outside cluster(ocfs2_xattr_bucket_set_value_outside)
- * 4. If the clusters for the new outside value can't be allocated, we need
- * to free the xattr we allocated in set.
- */
-static int ocfs2_xattr_set_in_bucket(struct inode *inode,
- struct ocfs2_xattr_info *xi,
- struct ocfs2_xattr_search *xs,
- struct ocfs2_xattr_set_ctxt *ctxt)
-{
- int ret, local = 1;
- size_t value_len;
- char *val = (char *)xi->value;
- struct ocfs2_xattr_entry *xe = xs->here;
- u32 name_hash = ocfs2_xattr_name_hash(inode, xi->name,
- strlen(xi->name));
-
- if (!xs->not_found && !ocfs2_xattr_is_local(xe)) {
- /*
- * We need to truncate the xattr storage first.
- *
- * If both the old and new value are stored to
- * outside block, we only need to truncate
- * the storage and then set the value outside.
- *
- * If the new value should be stored within block,
- * we should free all the outside block first and
- * the modification to the xattr block will be done
- * by following steps.
- */
- if (xi->value_len > OCFS2_XATTR_INLINE_SIZE)
- value_len = xi->value_len;
- else
- value_len = 0;
-
- ret = ocfs2_xattr_bucket_value_truncate_xs(inode, xs,
- value_len,
- ctxt);
- if (ret)
- goto out;
-
- if (value_len)
- goto set_value_outside;
- }
-
- value_len = xi->value_len;
- /* So we have to handle the inside block change now. */
- if (value_len > OCFS2_XATTR_INLINE_SIZE) {
- /*
- * If the new value will be stored outside of block,
- * initalize a new empty value root and insert it first.
- */
- local = 0;
- xi->value = &def_xv;
- xi->value_len = OCFS2_XATTR_ROOT_SIZE;
- }
-
- ret = ocfs2_xattr_set_entry_in_bucket(inode, ctxt->handle, xi, xs,
- name_hash, local);
- if (ret) {
- mlog_errno(ret);
- goto out;
- }
-
- if (value_len <= OCFS2_XATTR_INLINE_SIZE)
- goto out;
-
- /* allocate the space now for the outside block storage. */
- ret = ocfs2_xattr_bucket_value_truncate_xs(inode, xs,
- value_len, ctxt);
- if (ret) {
- mlog_errno(ret);
-
- if (xs->not_found) {
- /*
- * We can't allocate enough clusters for outside
- * storage and we have allocated xattr already,
- * so need to remove it.
- */
- ocfs2_xattr_bucket_remove_xs(inode, ctxt->handle, xs);
- }
- goto out;
- }
-
-set_value_outside:
- ret = ocfs2_xattr_bucket_set_value_outside(inode, ctxt->handle,
- xs, val, value_len);
-out:
- return ret;
-}
-
/*
* check whether the xattr bucket is filled up with the same hash value.
* If we want to insert the xattr with the same hash, return -ENOSPC.
@@ -5317,156 +5531,116 @@ static int ocfs2_check_xattr_bucket_collision(struct inode *inode,
return 0;
}
-static int ocfs2_xattr_set_entry_index_block(struct inode *inode,
- struct ocfs2_xattr_info *xi,
- struct ocfs2_xattr_search *xs,
- struct ocfs2_xattr_set_ctxt *ctxt)
+/*
+ * Try to set the entry in the current bucket. If we fail, the caller
+ * will handle getting us another bucket.
+ */
+static int ocfs2_xattr_set_entry_bucket(struct inode *inode,
+ struct ocfs2_xattr_info *xi,
+ struct ocfs2_xattr_search *xs,
+ struct ocfs2_xattr_set_ctxt *ctxt)
{
- struct ocfs2_xattr_header *xh;
- struct ocfs2_xattr_entry *xe;
- u16 count, header_size, xh_free_start;
- int free, max_free, need, old;
- size_t value_size = 0, name_len = strlen(xi->name);
- size_t blocksize = inode->i_sb->s_blocksize;
- int ret, allocation = 0;
-
- mlog_entry("Set xattr %s in xattr index block\n", xi->name);
-
-try_again:
- xh = xs->header;
- count = le16_to_cpu(xh->xh_count);
- xh_free_start = le16_to_cpu(xh->xh_free_start);
- header_size = sizeof(struct ocfs2_xattr_header) +
- count * sizeof(struct ocfs2_xattr_entry);
- max_free = OCFS2_XATTR_BUCKET_SIZE - header_size -
- le16_to_cpu(xh->xh_name_value_len) - OCFS2_XATTR_HEADER_GAP;
-
- mlog_bug_on_msg(header_size > blocksize, "bucket %llu has header size "
- "of %u which exceed block size\n",
- (unsigned long long)bucket_blkno(xs->bucket),
- header_size);
+ int ret;
+ struct ocfs2_xa_loc loc;
- if (xi->value && xi->value_len > OCFS2_XATTR_INLINE_SIZE)
- value_size = OCFS2_XATTR_ROOT_SIZE;
- else if (xi->value)
- value_size = OCFS2_XATTR_SIZE(xi->value_len);
+ mlog_entry("Set xattr %s in xattr bucket\n", xi->xi_name);
- if (xs->not_found)
- need = sizeof(struct ocfs2_xattr_entry) +
- OCFS2_XATTR_SIZE(name_len) + value_size;
- else {
- need = value_size + OCFS2_XATTR_SIZE(name_len);
+ ocfs2_init_xattr_bucket_xa_loc(&loc, xs->bucket,
+ xs->not_found ? NULL : xs->here);
+ ret = ocfs2_xa_set(&loc, xi, ctxt);
+ if (!ret) {
+ xs->here = loc.xl_entry;
+ goto out;
+ }
+ if (ret != -ENOSPC) {
+ mlog_errno(ret);
+ goto out;
+ }
- /*
- * We only replace the old value if the new length is smaller
- * than the old one. Otherwise we will allocate new space in the
- * bucket to store it.
- */
- xe = xs->here;
- if (ocfs2_xattr_is_local(xe))
- old = OCFS2_XATTR_SIZE(le64_to_cpu(xe->xe_value_size));
- else
- old = OCFS2_XATTR_SIZE(OCFS2_XATTR_ROOT_SIZE);
+ /* Ok, we need space. Let's try defragmenting the bucket. */
+ ret = ocfs2_defrag_xattr_bucket(inode, ctxt->handle,
+ xs->bucket);
+ if (ret) {
+ mlog_errno(ret);
+ goto out;
+ }
- if (old >= value_size)
- need = 0;
+ ret = ocfs2_xa_set(&loc, xi, ctxt);
+ if (!ret) {
+ xs->here = loc.xl_entry;
+ goto out;
}
+ if (ret != -ENOSPC)
+ mlog_errno(ret);
- free = xh_free_start - header_size - OCFS2_XATTR_HEADER_GAP;
- /*
- * We need to make sure the new name/value pair
- * can exist in the same block.
- */
- if (xh_free_start % blocksize < need)
- free -= xh_free_start % blocksize;
-
- mlog(0, "xs->not_found = %d, in xattr bucket %llu: free = %d, "
- "need = %d, max_free = %d, xh_free_start = %u, xh_name_value_len ="
- " %u\n", xs->not_found,
- (unsigned long long)bucket_blkno(xs->bucket),
- free, need, max_free, le16_to_cpu(xh->xh_free_start),
- le16_to_cpu(xh->xh_name_value_len));
-
- if (free < need ||
- (xs->not_found &&
- count == ocfs2_xattr_max_xe_in_bucket(inode->i_sb))) {
- if (need <= max_free &&
- count < ocfs2_xattr_max_xe_in_bucket(inode->i_sb)) {
- /*
- * We can create the space by defragment. Since only the
- * name/value will be moved, the xe shouldn't be changed
- * in xs.
- */
- ret = ocfs2_defrag_xattr_bucket(inode, ctxt->handle,
- xs->bucket);
- if (ret) {
- mlog_errno(ret);
- goto out;
- }
- xh_free_start = le16_to_cpu(xh->xh_free_start);
- free = xh_free_start - header_size
- - OCFS2_XATTR_HEADER_GAP;
- if (xh_free_start % blocksize < need)
- free -= xh_free_start % blocksize;
+out:
+ mlog_exit(ret);
+ return ret;
+}
- if (free >= need)
- goto xattr_set;
+static int ocfs2_xattr_set_entry_index_block(struct inode *inode,
+ struct ocfs2_xattr_info *xi,
+ struct ocfs2_xattr_search *xs,
+ struct ocfs2_xattr_set_ctxt *ctxt)
+{
+ int ret;
- mlog(0, "Can't get enough space for xattr insert by "
- "defragment. Need %u bytes, but we have %d, so "
- "allocate new bucket for it.\n", need, free);
- }
+ mlog_entry("Set xattr %s in xattr index block\n", xi->xi_name);
- /*
- * We have to add new buckets or clusters and one
- * allocation should leave us enough space for insert.
- */
- BUG_ON(allocation);
+ ret = ocfs2_xattr_set_entry_bucket(inode, xi, xs, ctxt);
+ if (!ret)
+ goto out;
+ if (ret != -ENOSPC) {
+ mlog_errno(ret);
+ goto out;
+ }
- /*
- * We do not allow for overlapping ranges between buckets. And
- * the maximum number of collisions we will allow for then is
- * one bucket's worth, so check it here whether we need to
- * add a new bucket for the insert.
- */
- ret = ocfs2_check_xattr_bucket_collision(inode,
- xs->bucket,
- xi->name);
- if (ret) {
- mlog_errno(ret);
- goto out;
- }
+ /* Ack, need more space. Let's try to get another bucket! */
- ret = ocfs2_add_new_xattr_bucket(inode,
- xs->xattr_bh,
+ /*
+ * We do not allow for overlapping ranges between buckets. And
+ * the maximum number of collisions we will allow for then is
+ * one bucket's worth, so check it here whether we need to
+ * add a new bucket for the insert.
+ */
+ ret = ocfs2_check_xattr_bucket_collision(inode,
xs->bucket,
- ctxt);
- if (ret) {
- mlog_errno(ret);
- goto out;
- }
+ xi->xi_name);
+ if (ret) {
+ mlog_errno(ret);
+ goto out;
+ }
- /*
- * ocfs2_add_new_xattr_bucket() will have updated
- * xs->bucket if it moved, but it will not have updated
- * any of the other search fields. Thus, we drop it and
- * re-search. Everything should be cached, so it'll be
- * quick.
- */
- ocfs2_xattr_bucket_relse(xs->bucket);
- ret = ocfs2_xattr_index_block_find(inode, xs->xattr_bh,
- xi->name_index,
- xi->name, xs);
- if (ret && ret != -ENODATA)
- goto out;
- xs->not_found = ret;
- allocation = 1;
- goto try_again;
+ ret = ocfs2_add_new_xattr_bucket(inode,
+ xs->xattr_bh,
+ xs->bucket,
+ ctxt);
+ if (ret) {
+ mlog_errno(ret);
+ goto out;
}
-xattr_set:
- ret = ocfs2_xattr_set_in_bucket(inode, xi, xs, ctxt);
+ /*
+ * ocfs2_add_new_xattr_bucket() will have updated
+ * xs->bucket if it moved, but it will not have updated
+ * any of the other search fields. Thus, we drop it and
+ * re-search. Everything should be cached, so it'll be
+ * quick.
+ */
+ ocfs2_xattr_bucket_relse(xs->bucket);
+ ret = ocfs2_xattr_index_block_find(inode, xs->xattr_bh,
+ xi->xi_name_index,
+ xi->xi_name, xs);
+ if (ret && ret != -ENODATA)
+ goto out;
+ xs->not_found = ret;
+
+ /* Ok, we have a new bucket, let's try again */
+ ret = ocfs2_xattr_set_entry_bucket(inode, xi, xs, ctxt);
+ if (ret && (ret != -ENOSPC))
+ mlog_errno(ret);
+
out:
mlog_exit(ret);
return ret;
@@ -5678,7 +5852,7 @@ static int ocfs2_prepare_refcount_xattr(struct inode *inode,
* refcount tree, and make the original extent become 3. So we will need
* 2 * cluster more extent recs at most.
*/
- if (!xi->value || xi->value_len <= OCFS2_XATTR_INLINE_SIZE) {
+ if (!xi->xi_value || xi->xi_value_len <= OCFS2_XATTR_INLINE_SIZE) {
ret = ocfs2_refcounted_xattr_delete_need(inode,
&(*ref_tree)->rf_ci,
@@ -6354,9 +6528,11 @@ static int ocfs2_create_empty_xattr_block(struct inode *inode,
int indexed)
{
int ret;
- handle_t *handle;
struct ocfs2_alloc_context *meta_ac;
struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
+ struct ocfs2_xattr_set_ctxt ctxt = {
+ .meta_ac = meta_ac,
+ };
ret = ocfs2_reserve_new_metadata_blocks(osb, 1, &meta_ac);
if (ret < 0) {
@@ -6364,21 +6540,21 @@ static int ocfs2_create_empty_xattr_block(struct inode *inode,
return ret;
}
- handle = ocfs2_start_trans(osb, OCFS2_XATTR_BLOCK_CREATE_CREDITS);
- if (IS_ERR(handle)) {
- ret = PTR_ERR(handle);
+ ctxt.handle = ocfs2_start_trans(osb, OCFS2_XATTR_BLOCK_CREATE_CREDITS);
+ if (IS_ERR(ctxt.handle)) {
+ ret = PTR_ERR(ctxt.handle);
mlog_errno(ret);
goto out;
}
mlog(0, "create new xattr block for inode %llu, index = %d\n",
(unsigned long long)fe_bh->b_blocknr, indexed);
- ret = ocfs2_create_xattr_block(handle, inode, fe_bh,
- meta_ac, ret_bh, indexed);
+ ret = ocfs2_create_xattr_block(inode, fe_bh, &ctxt, indexed,
+ ret_bh);
if (ret)
mlog_errno(ret);
- ocfs2_commit_trans(osb, handle);
+ ocfs2_commit_trans(osb, ctxt.handle);
out:
ocfs2_free_alloc_context(meta_ac);
return ret;