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/affs/namei.c b/fs/affs/namei.c
index e3e9efc1fdd8..d087153d5052 100644
--- a/fs/affs/namei.c
+++ b/fs/affs/namei.c
@@ -320,6 +320,8 @@ affs_rmdir(struct inode *dir, struct dentry *dentry)
                  dentry->d_inode->i_ino,
                  (int)dentry->d_name.len, dentry->d_name.name);
 
+        dentry_unhash(dentry);
+
         return affs_remove_header(dentry);
 }