From 692206b153ea0d08d6015521ed27a6739cbf6f9f Mon Sep 17 00:00:00 2001
From: Wang Shilong <wangsl-fnst@cn.fujitsu.com>
Date: Thu, 11 Apr 2013 07:08:55 +0000
Subject: [PATCH] Btrfs: make __merge_refs() return type be void

__merge_refs() always return 0, it is unnecessary
for the caller to check the return value.

Signed-off-by: Wang Shilong <wangsl-fnst@cn.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
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Reading git-format-patch failed