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authorSrinivas Eeda <srinivas.eeda@oracle.com>2007-10-31 16:49:43 -0700
committerMark Fasheh <mark.fasheh@oracle.com>2007-11-06 15:35:40 -0800
commite325a88f17196f18888f6e1426eb9fe3b4346d28 (patch)
tree34536cea32f530c0a41df0b8323d1e3a2249a0e6
parent[PATCH] Fix possibly too long write in o2hb_setup_one_bio() (diff)
downloadlinux-dev-e325a88f17196f18888f6e1426eb9fe3b4346d28.tar.xz
linux-dev-e325a88f17196f18888f6e1426eb9fe3b4346d28.zip
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 '')
-rw-r--r--fs/ocfs2/namei.c13
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 */