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Date: Tue, 14 Mar 2017 16:32:30 +0100
From: Peter Zijlstra <peterz@infradead.org>
Subject: Re: [PATCH] x86, kasan: add KASAN checks to atomic operations
Message-ID: <20170314153230.GR5680@worktop>
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To: Dmitry Vyukov <dvyukov@google.com>
Cc: Will Deacon <will.deacon@arm.com>, Mark Rutland <mark.rutland@arm.com>, Andrew Morton <akpm@linux-foundation.org>, Andrey Ryabinin <aryabinin@virtuozzo.com>, Ingo Molnar <mingo@redhat.com>, kasan-dev <kasan-dev@googlegroups.com>, "linux-mm@kvack.org" <linux-mm@kvack.org>, LKML <linux-kernel@vger.kernel.org>, "x86@kernel.org" <x86@kernel.org>

On Tue, Mar 14, 2017 at 04:22:52PM +0100, Dmitry Vyukov wrote:
> -static __always_inline int atomic_read(const atomic_t *v)
> +static __always_inline int arch_atomic_read(const atomic_t *v)
>  {
> -	return READ_ONCE((v)->counter);
> +	return READ_ONCE_NOCHECK((v)->counter);

Should NOCHEKC come with a comment, because i've no idea why this is so.

>  }

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