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/nfs/dir.c b/fs/nfs/dir.c
index 7237672216c8..48483b562361 100644
--- a/fs/nfs/dir.c
+++ b/fs/nfs/dir.c
@@ -1748,6 +1748,8 @@ static int nfs_rmdir(struct inode *dir, struct dentry *dentry)
         dfprintk(VFS, "NFS: rmdir(%s/%ld), %s\n",
                         dir->i_sb->s_id, dir->i_ino, dentry->d_name.name);
 
+        dentry_unhash(dentry);
+
         error = NFS_PROTO(dir)->rmdir(dir, &dentry->d_name);
         /* Ensure the VFS deletes this inode */
         if (error == 0 && dentry->d_inode != NULL)