From mboxrd@z Thu Jan  1 00:00:00 1970
From: mst@redhat.com (Michael S. Tsirkin)
Date: Thu, 14 Jan 2016 11:24:01 +0200
Subject: [v3,11/41] mips: reuse asm-generic/barrier.h
In-Reply-To: <5696CF08.8080700@imgtec.com>
References: <1452426622-4471-12-git-send-email-mst@redhat.com>
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 <20160112092711.GP6344@twins.programming.kicks-ass.net>
 <20160112102555.GV6373@twins.programming.kicks-ass.net>
 <20160112104012.GW6373@twins.programming.kicks-ass.net>
 <20160112114111.GB15737@arm.com> <569565DA.2010903@imgtec.com>
 <20160113104516.GE25458@arm.com> <5696CF08.8080700@imgtec.com>
Message-ID: <20160114111632-mutt-send-email-mst@redhat.com>
To: linux-arm-kernel@lists.infradead.org
List-Id: linux-arm-kernel.lists.infradead.org

On Wed, Jan 13, 2016 at 02:26:16PM -0800, Leonid Yegoshin wrote:
> And all that is out-of-topic here in my mind. I just want to be sure that
> this patchset still provides a use of a specific lightweight SYNCs on MIPS
> vs bold and heavy generalized "SYNC 0" in any case.
> 
> - Leonid.

Of course it does. All this patchset does is rename smp_mb/rmb/wmb
to __smp_mb()/__smp_rmb()/__smp_wmb()
and then asm-generic does #define smp_mb __smp_mb
or #define smp_mb barrier depending on CONFIG_SMP.

Why is that needed? So we can implement
[PATCH v3 28/41] asm-generic: implement virt_xxx memory barriers

-- 
MST