[PATCH] r/o bind mounts: monitor zeroing of i_nlink

Some filesystems, instead of simply decrementing i_nlink, simply zero it
during an unlink operation.  We need to catch these in addition to the
decrement operations.

Signed-off-by: Dave Hansen <haveblue@us.ibm.com>
Acked-by: Christoph Hellwig <hch@lst.de>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/fs/jfs/namei.c b/fs/jfs/namei.c
index 8cef88170aa4..b8d16a6aa88f 100644
--- a/fs/jfs/namei.c
+++ b/fs/jfs/namei.c
@@ -414,7 +414,7 @@ static int jfs_rmdir(struct inode *dip, struct dentry *dentry)
         JFS_IP(ip)->acl.flag = 0;
 
         /* mark the target directory as deleted */
-        ip->i_nlink = 0;
+        clear_nlink(ip);
         mark_inode_dirty(ip);
 
         rc = txCommit(tid, 2, &iplist[0], 0);