From e325a88f17196f18888f6e1426eb9fe3b4346d28 Mon Sep 17 00:00:00 2001 From: Srinivas Eeda Date: Wed, 31 Oct 2007 16:49:43 -0700 Subject: 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 Signed-off-by: Mark Fasheh --- fs/ocfs2/namei.c | 13 ++++++++++--- 1 file changed, 10 insertions(+), 3 deletions(-) (limited to 'fs/ocfs2/namei.c') 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 */ -- cgit v1.2.3-59-g8ed1b