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, 6 insertions, 2 deletions

diff --git a/fs/omfs/dir.c b/fs/omfs/dir.c
index de4ff29f1e05..95ef4433d1a3 100644
--- a/fs/omfs/dir.c
+++ b/fs/omfs/dir.c
@@ -240,8 +240,12 @@ static int omfs_remove(struct inode *dir, struct dentry *dentry)
         struct inode *inode = dentry->d_inode;
         int ret;
 
-        if (S_ISDIR(inode->i_mode) && !omfs_dir_is_empty(inode))
-                return -ENOTEMPTY;
+
+        if (S_ISDIR(inode->i_mode)) {
+                dentry_unhash(dentry);
+                if (!omfs_dir_is_empty(inode))
+                        return -ENOTEMPTY;
+        }
 
         ret = omfs_delete_entry(dentry);
         if (ret)