[PATCH] nfsd4: fix sync'ing of recovery directory

We need to fsync the recovery directory after writing to it, but we weren't
doing this correctly.  (For example, we weren't taking the i_sem when calling
->fsync().)

Just reuse the existing nfsd fsync code instead.

Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

fs/nfsd/vfs.c

@@ -733,7 +733,7 @@ nfsd_sync(struct file *filp)
 	up(&inode->i_sem);
 }
 
-static void
+void
 nfsd_sync_dir(struct dentry *dp)
 {
 	nfsd_dosync(NULL, dp, dp->d_inode->i_fop);