From 134d45120164141c0847daf5222aaec77e04724a Mon Sep 17 00:00:00 2001
From: Yan <yanzheng@21cn.com>
Date: Thu, 25 Oct 2007 15:49:25 -0400
Subject: [PATCH] Fix ENOTEMPTY check in btrfs_rmdir

The ENOTEMPTY check in btrfs_rmdir isn't reliable. It's possible that
the backward search finds . or .. at first, then some other directory
entry. In that case,  btrfs_rmdir delete . or .. improperly.  The
patch also fixes a fs_mutex unlock issue in  btrfs_rmdir.

--

Signed-off-by: Chris Mason <chris.mason@oracle.com>
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