ocfs2: don't pass handle to ocfs2_meta_lock in ocfs2_rename()
Take and drop the locks directly.
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
diff --git a/fs/ocfs2/namei.c b/fs/ocfs2/namei.c
index 7e9da94..5bd5f99 100644
--- a/fs/ocfs2/namei.c
+++ b/fs/ocfs2/namei.c
@@ -104,13 +104,6 @@
struct buffer_head *fe_bh,
struct ocfs2_alloc_context *data_ac);
-static int ocfs2_double_lock(struct ocfs2_super *osb,
- struct ocfs2_journal_handle *handle,
- struct buffer_head **bh1,
- struct inode *inode1,
- struct buffer_head **bh2,
- struct inode *inode2);
-
static int ocfs2_prepare_orphan_dir(struct ocfs2_super *osb,
struct inode **ret_orphan_dir,
struct inode *inode,
@@ -992,7 +985,6 @@
* if they have the same id, then the 1st one is the only one locked.
*/
static int ocfs2_double_lock(struct ocfs2_super *osb,
- struct ocfs2_journal_handle *handle,
struct buffer_head **bh1,
struct inode *inode1,
struct buffer_head **bh2,
@@ -1008,8 +1000,6 @@
(unsigned long long)oi1->ip_blkno,
(unsigned long long)oi2->ip_blkno);
- BUG_ON(!handle);
-
if (*bh1)
*bh1 = NULL;
if (*bh2)
@@ -1029,25 +1019,41 @@
inode1 = tmpinode;
}
/* lock id2 */
- status = ocfs2_meta_lock(inode2, handle, bh2, 1);
+ status = ocfs2_meta_lock(inode2, NULL, bh2, 1);
if (status < 0) {
if (status != -ENOENT)
mlog_errno(status);
goto bail;
}
}
+
/* lock id1 */
- status = ocfs2_meta_lock(inode1, handle, bh1, 1);
+ status = ocfs2_meta_lock(inode1, NULL, bh1, 1);
if (status < 0) {
+ /*
+ * An error return must mean that no cluster locks
+ * were held on function exit.
+ */
+ if (oi1->ip_blkno != oi2->ip_blkno)
+ ocfs2_meta_unlock(inode2, 1);
+
if (status != -ENOENT)
mlog_errno(status);
- goto bail;
}
+
bail:
mlog_exit(status);
return status;
}
+static void ocfs2_double_unlock(struct inode *inode1, struct inode *inode2)
+{
+ ocfs2_meta_unlock(inode1, 1);
+
+ if (inode1 != inode2)
+ ocfs2_meta_unlock(inode2, 1);
+}
+
#define PARENT_INO(buffer) \
((struct ocfs2_dir_entry *) \
((char *)buffer + \
@@ -1058,7 +1064,8 @@
struct inode *new_dir,
struct dentry *new_dentry)
{
- int status = 0, rename_lock = 0;
+ int status = 0, rename_lock = 0, parents_locked = 0;
+ int old_child_locked = 0, new_child_locked = 0;
struct inode *old_inode = old_dentry->d_inode;
struct inode *new_inode = new_dentry->d_inode;
struct inode *orphan_dir = NULL;
@@ -1122,13 +1129,13 @@
}
/* if old and new are the same, this'll just do one lock. */
- status = ocfs2_double_lock(osb, handle,
- &old_dir_bh, old_dir,
- &new_dir_bh, new_dir);
+ status = ocfs2_double_lock(osb, &old_dir_bh, old_dir,
+ &new_dir_bh, new_dir);
if (status < 0) {
mlog_errno(status);
goto bail;
}
+ parents_locked = 1;
/* make sure both dirs have bhs
* get an extra ref on old_dir_bh if old==new */
@@ -1149,12 +1156,13 @@
* the vote thread on other nodes won't have to concurrently
* downconvert the inode and the dentry locks.
*/
- status = ocfs2_meta_lock(old_inode, handle, NULL, 1);
+ status = ocfs2_meta_lock(old_inode, NULL, NULL, 1);
if (status < 0) {
if (status != -ENOENT)
mlog_errno(status);
goto bail;
}
+ old_child_locked = 1;
status = ocfs2_remote_dentry_delete(old_dentry);
if (status < 0) {
@@ -1240,12 +1248,13 @@
goto bail;
}
- status = ocfs2_meta_lock(new_inode, handle, &newfe_bh, 1);
+ status = ocfs2_meta_lock(new_inode, NULL, &newfe_bh, 1);
if (status < 0) {
if (status != -ENOENT)
mlog_errno(status);
goto bail;
}
+ new_child_locked = 1;
status = ocfs2_remote_dentry_delete(new_dentry);
if (status < 0) {
@@ -1435,6 +1444,15 @@
if (handle)
ocfs2_commit_trans(handle);
+ if (parents_locked)
+ ocfs2_double_unlock(old_dir, new_dir);
+
+ if (old_child_locked)
+ ocfs2_meta_unlock(old_inode, 1);
+
+ if (new_child_locked)
+ ocfs2_meta_unlock(new_inode, 1);
+
if (orphan_dir) {
/* This was locked for us in ocfs2_prepare_orphan_dir() */
ocfs2_meta_unlock(orphan_dir, 1);