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| author | Srinivas Eeda <srinivas.eeda@oracle.com> | 2007-10-31 16:49:43 -0700 |
|---|---|---|
| committer | Mark Fasheh <mark.fasheh@oracle.com> | 2007-11-06 15:35:40 -0800 |
| commit | e325a88f17196f18888f6e1426eb9fe3b4346d28 (patch) | |
| tree | 34536cea32f530c0a41df0b8323d1e3a2249a0e6 /fs/ocfs2/namei.c | |
| parent | bc7e97cbdd4bef162e5772c74ee2cc4487a2d997 (diff) | |
| download | linux-e325a88f17196f18888f6e1426eb9fe3b4346d28.tar.gz | |
ocfs2: fix rename vs unlink race
If another node unlinks the destination while ocfs2_rename() is waiting on a
cluster lock, ocfs2_rename() simply logs an error and continues. This causes
a crash because the renaming node is now trying to delete a non-existent
inode. The correct solution is to return -ENOENT.
Signed-off-by: Srinivas Eeda <srinivas.eeda@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
Diffstat (limited to 'fs/ocfs2/namei.c')
| -rw-r--r-- | fs/ocfs2/namei.c | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/fs/ocfs2/namei.c b/fs/ocfs2/namei.c index 729259016c18..989ac2718587 100644 --- a/fs/ocfs2/namei.c +++ b/fs/ocfs2/namei.c @@ -1105,9 +1105,16 @@ static int ocfs2_rename(struct inode *old_dir, goto bail; } - if (!new_de && new_inode) - mlog(ML_ERROR, "inode %lu does not exist in it's parent " - "directory!", new_inode->i_ino); + if (!new_de && new_inode) { + /* + * Target was unlinked by another node while we were + * waiting to get to ocfs2_rename(). There isn't + * anything we can do here to help the situation, so + * bubble up the appropriate error. + */ + status = -ENOENT; + goto bail; + } /* In case we need to overwrite an existing file, we blow it * away first */ |