From 70cb074345832b75cf422ed729706345511773b3 Mon Sep 17 00:00:00 2001
From: Josef Bacik <jbacik@redhat.com>
Date: Fri, 3 Apr 2009 10:14:19 -0400
Subject: [PATCH] Btrfs: free space cache cleanups

This patch cleans up the free space cache code a bit.  It better documents the
idiosyncrasies of tree_search_offset and makes the code make a bit more sense.
I took out the info allocation at the start of __btrfs_add_free_space and put it
where it makes more sense.  This was left over cruft from when alloc_mutex
existed.  Also all of the re-searches we do to make sure we inserted properly.

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