Commit afe1bb73 authored by Joseph Qi's avatar Joseph Qi Committed by Linus Torvalds

ocfs2: unlock rw lock if inode lock failed

In ocfs2_file_aio_write(), it does ocfs2_rw_lock() first and then
ocfs2_inode_lock().

But if ocfs2_inode_lock() failed, it goes to out_sems without unlocking
rw lock.  This will cause a bug in ocfs2_lock_res_free() when testing
res->l_ex_holders, which is increased in __ocfs2_cluster_lock() and
decreased in __ocfs2_cluster_unlock().
Signed-off-by: default avatarJoseph Qi <joseph.qi@huawei.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Mark Fasheh <mfasheh@suse.com>
Cc: Li Zefan <lizefan@huawei.com>
Cc: "Duyongfeng (B)" <du.duyongfeng@huawei.com>
Acked-by: default avatarSunil Mushran <sunil.mushran@gmail.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent d34883d4
...@@ -2288,7 +2288,7 @@ static ssize_t ocfs2_file_aio_write(struct kiocb *iocb, ...@@ -2288,7 +2288,7 @@ static ssize_t ocfs2_file_aio_write(struct kiocb *iocb,
ret = ocfs2_inode_lock(inode, NULL, 1); ret = ocfs2_inode_lock(inode, NULL, 1);
if (ret < 0) { if (ret < 0) {
mlog_errno(ret); mlog_errno(ret);
goto out_sems; goto out;
} }
ocfs2_inode_unlock(inode, 1); ocfs2_inode_unlock(inode, 1);
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment