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/configfs/dir.c b/fs/configfs/dir.c
index 3313dd19f543..9908c20bb1a5 100644
--- a/fs/configfs/dir.c
+++ b/fs/configfs/dir.c
@@ -1355,6 +1355,8 @@ static int configfs_rmdir(struct inode *dir, struct dentry *dentry)
         struct module *subsys_owner = NULL, *dead_item_owner = NULL;
         int ret;
 
+        dentry_unhash(dentry);
+
         if (dentry->d_parent == configfs_sb->s_root)
                 return -EPERM;