Re: [PATCH] ARCv2: spinlock: remove the extra smp_mb before lock, after unlock

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To: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Subject: Re: [PATCH] ARCv2: spinlock: remove the extra smp_mb before lock, after unlock
From: Vineet Gupta <vineet.gupta1@xxxxxxxxxxxx>
Date: Fri, 8 Mar 2019 10:50:44 -0800
Cc: linux-snps-arc@xxxxxxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx
In-reply-to: <20190308083748.GP32477@hirez.programming.kicks-ass.net>
Newsgroups: gmane.linux.kernel, gmane.linux.kernel.arc
References: <1552008946-8008-1-git-send-email-vgupta@synopsys.com> <20190308083748.GP32477@hirez.programming.kicks-ass.net>
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.5.1

On 3/8/19 12:37 AM, Peter Zijlstra wrote:
> I'm thinking those assignments should be WRITE_ONCE() at the very least.

Done !

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References:
- [PATCH] ARCv2: spinlock: remove the extra smp_mb before lock, after unlock
  - From: Vineet Gupta
- Re: [PATCH] ARCv2: spinlock: remove the extra smp_mb before lock, after unlock
  - From: Peter Zijlstra

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