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| author | Tao Ma <boyu.mt@taobao.com> | 2010-12-20 16:21:11 +0800 |
|---|---|---|
| committer | Joel Becker <joel.becker@oracle.com> | 2010-12-22 18:34:42 -0800 |
| commit | 1e6d9153df27923649976554d034a69ac7b28f95 (patch) | |
| tree | dfb165957114d9cd6afd1ddbc316ff65d001bed1 /fs/ocfs2 | |
| parent | cfc069d3fa24d7c6357e3b731e97f94db495bf0c (diff) | |
| download | lwn-1e6d9153df27923649976554d034a69ac7b28f95.tar.gz lwn-1e6d9153df27923649976554d034a69ac7b28f95.zip | |
ocfs2: Release buffer_head in case of error in ocfs2_double_lock.
In ocfs2_double_lock, when ocfs2_inode_lock for inode1 fails, we
just unlock inode2 and return without releasing buffer we get from
inode_lock(inode2). The good thing is that it is freed by the only
caller ocfs2_rename when it exits.
But I don't think this is a right way for error handling. We should
free the buffer_head we get in ocfs2_double_lock before exit so that
the caller doesn't need to take care of it.
Signed-off-by: Tao Ma <boyu.mt@taobao.com>
Signed-off-by: Joel Becker <joel.becker@oracle.com>
Diffstat (limited to 'fs/ocfs2')
| -rw-r--r-- | fs/ocfs2/namei.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/fs/ocfs2/namei.c b/fs/ocfs2/namei.c index ff5744e1e36f..ca35f81a13bb 100644 --- a/fs/ocfs2/namei.c +++ b/fs/ocfs2/namei.c @@ -1017,8 +1017,11 @@ static int ocfs2_double_lock(struct ocfs2_super *osb, * An error return must mean that no cluster locks * were held on function exit. */ - if (oi1->ip_blkno != oi2->ip_blkno) + if (oi1->ip_blkno != oi2->ip_blkno) { ocfs2_inode_unlock(inode2, 1); + brelse(*bh2); + *bh2 = NULL; + } if (status != -ENOENT) mlog_errno(status); |