From 0e22be890ef385de6816ec87a8a41c0b0f4a7a23 Mon Sep 17 00:00:00 2001
From: Zhaolei <zhaolei@cn.fujitsu.com>
Date: Wed, 5 Aug 2015 16:43:28 +0800
Subject: [PATCH] btrfs: Separate scrub_blocked_if_needed() to
 scrub_pause_on/off()

It can reduce current duplicated code which is similar to
scrub_blocked_if_needed() but can not call it because little
different.
It also used by my next patch which is in same case.

Signed-off-by: Zhao Lei <zhaolei@cn.fujitsu.com>
Signed-off-by: Chris Mason <clm@fb.com>
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