vfs: push dentry_unhash on rmdir into file systems

Only a few file systems need this.  Start by pushing it down into each
fs rmdir method (except gfs2 and xfs) so it can be dealt with on a per-fs
basis.

This does not change behavior for any in-tree file systems.

Acked-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sage Weil <sage@newdream.net>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

1 files changed, 2 insertions, 0 deletions

diff --git a/fs/ufs/namei.c b/fs/ufs/namei.c
index 29309e25417f..3a769d56c689 100644
--- a/fs/ufs/namei.c
+++ b/fs/ufs/namei.c
@@ -258,6 +258,8 @@ static int ufs_rmdir (struct inode * dir, struct dentry *dentry)
         struct inode * inode = dentry->d_inode;
         int err= -ENOTEMPTY;
 
+        dentry_unhash(dentry);
+
         lock_ufs(dir->i_sb);
         if (ufs_empty_dir (inode)) {
                 err = ufs_unlink(dir, dentry);