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/coda/dir.c b/fs/coda/dir.c
index 2b8dae4d121e..9f72b75a1def 100644
--- a/fs/coda/dir.c
+++ b/fs/coda/dir.c
@@ -336,6 +336,8 @@ static int coda_rmdir(struct inode *dir, struct dentry *de)
         int len = de->d_name.len;
         int error;
 
+        dentry_unhash(de);
+
         error = venus_rmdir(dir->i_sb, coda_i2f(dir), name, len);
         if (!error) {
                 /* VFS may delete the child */