From 0414efae7989a2183fb2cc000ab285c4c2836a00 Mon Sep 17 00:00:00 2001
From: Li Zefan <lizf@cn.fujitsu.com>
Date: Wed, 20 Apr 2011 10:20:14 +0800
Subject: [PATCH] Btrfs: Make the code for reading/writing free space cache
 generic

Extract out block group specific code from lookup_free_space_inode(),
create_free_space_inode(), load_free_space_cache() and
btrfs_write_out_cache(), so the code can be used to read/write
free ino cache.

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
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Reading git-format-patch failed