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From: David Miller <davem@davemloft.net>
Subject: Re: [PATCH 2/2] vhost: remove unnecessary smp_mb from
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Date: Thu, 08 Dec 2016 11:30:46 -0500 (EST)
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From: Peng Tao <bergwolf@gmail.com>
Date: Wed,  7 Dec 2016 17:52:19 +0800

> test_and_set_bit() already implies a memory barrier.
> 
> Signed-off-by: Peng Tao <bergwolf@gmail.com>

Applied.