From ea6a478ed9758cb0f5af228104b9434840aa20ff Mon Sep 17 00:00:00 2001
From: Josef Bacik <jbacik@redhat.com>
Date: Thu, 20 Nov 2008 12:16:16 -0500
Subject: [PATCH] Btrfs: Fix for lockdep warnings with alloc_mutex and
 pinned_mutex

This the lockdep complaint by having a different mutex to gaurd caching the
block group, so you don't end up with this backwards dependancy.  Thank you,

Signed-off-by: Josef Bacik <jbacik@redhat.com>
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