linux-kernel - Re: [RFC][PATCH 0/5] Getting rid of smp_mb__before

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Date:   Fri, 9 Jun 2017 15:49:38 +0100
From:   Will Deacon <will.deacon@....com>
To:     Peter Zijlstra <peterz@...radead.org>
Cc:     torvalds@...ux-foundation.org, oleg@...hat.com,
        paulmck@...ux.vnet.ibm.com, benh@...nel.crashing.org,
        mpe@...erman.id.au, npiggin@...il.com,
        linux-kernel@...r.kernel.org, mingo@...nel.org,
        stern@...land.harvard.edu
Subject: Re: [RFC][PATCH 0/5] Getting rid of smp_mb__before_spinlock

On Wed, Jun 07, 2017 at 06:15:01PM +0200, Peter Zijlstra wrote:
> There was a thread on this somewhere about a year ago, I finally remembered to
> finish this :-)
> 
> This series removes two smp_mb__before_spinlock() (ab)users and converts the
> scheduler to use smp_mb__after_spinlock(), which provides more guarantees with
> the same amount of barriers.

For the arm64 bits:

Acked-by: Will Deacon <will.deacon@....com>

Will