Joseph Qi
2015-Jul-30 11:30 UTC
[Ocfs2-devel] PATCH] ocfs2: adjust code to match locking/unlocking order
Unlocking order in ocfs2_unlink and ocfs2_rename mismatches the
corresponding locking order, although it won't cause issues, adjust the
code so that it looks more reasonable.
Signed-off-by: Joseph Qi <joseph.qi at huawei.com>
---
fs/ocfs2/namei.c | 34 +++++++++++++++++-----------------
1 file changed, 17 insertions(+), 17 deletions(-)
diff --git a/fs/ocfs2/namei.c b/fs/ocfs2/namei.c
index 38b3336..49435b1 100644
--- a/fs/ocfs2/namei.c
+++ b/fs/ocfs2/namei.c
@@ -1018,11 +1018,6 @@ leave:
if (handle)
ocfs2_commit_trans(osb, handle);
- if (child_locked)
- ocfs2_inode_unlock(inode, 1);
-
- ocfs2_inode_unlock(dir, 1);
-
if (orphan_dir) {
/* This was locked for us in ocfs2_prepare_orphan_dir() */
ocfs2_inode_unlock(orphan_dir, 1);
@@ -1030,6 +1025,11 @@ leave:
iput(orphan_dir);
}
+ if (child_locked)
+ ocfs2_inode_unlock(inode, 1);
+
+ ocfs2_inode_unlock(dir, 1);
+
brelse(fe_bh);
brelse(parent_node_bh);
@@ -1608,21 +1608,9 @@ static int ocfs2_rename(struct inode *old_dir,
ocfs2_dentry_move(old_dentry, new_dentry, old_dir, new_dir);
status = 0;
bail:
- if (rename_lock)
- ocfs2_rename_unlock(osb);
-
if (handle)
ocfs2_commit_trans(osb, handle);
- if (parents_locked)
- ocfs2_double_unlock(old_dir, new_dir);
-
- if (old_child_locked)
- ocfs2_inode_unlock(old_inode, 1);
-
- if (new_child_locked)
- ocfs2_inode_unlock(new_inode, 1);
-
if (orphan_dir) {
/* This was locked for us in ocfs2_prepare_orphan_dir() */
ocfs2_inode_unlock(orphan_dir, 1);
@@ -1630,6 +1618,18 @@ bail:
iput(orphan_dir);
}
+ if (new_child_locked)
+ ocfs2_inode_unlock(new_inode, 1);
+
+ if (old_child_locked)
+ ocfs2_inode_unlock(old_inode, 1);
+
+ if (parents_locked)
+ ocfs2_double_unlock(old_dir, new_dir);
+
+ if (rename_lock)
+ ocfs2_rename_unlock(osb);
+
if (new_inode)
sync_mapping_buffers(old_inode->i_mapping);
--
1.8.4.3