Re: [PATCH] x86, kasan: add KASAN checks to atomic operations

From	Peter Zijlstra <peterz@infradead.org>
Newsgroups	linux.kernel
Subject	Re: [PATCH] x86, kasan: add KASAN checks to atomic operations
Date	2017-03-14 16:40 +0100
Message-ID	<tkWIi-25L-7@gated-at.bofh.it> (permalink)
References	(5 earlier) <ti83f-5wO-5@gated-at.bofh.it> <tiLHj-8qM-7@gated-at.bofh.it> <tiLHj-8qM-9@gated-at.bofh.it> <tiOOS-1ZF-5@gated-at.bofh.it> <tkWyD-20n-39@gated-at.bofh.it>
Organization	linux.* mail to news gateway

Show all headers | View raw

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.

>  }

Back to linux.kernel | Previous | Next — Next in thread | Find similar | Unroll thread

Thread

Re: [PATCH] x86, kasan: add KASAN checks to atomic operations Peter Zijlstra <peterz@infradead.org> - 2017-03-14 16:40 +0100
  Re: [PATCH] x86, kasan: add KASAN checks to atomic operations Mark Rutland <mark.rutland@arm.com> - 2017-03-14 16:50 +0100
    Re: [PATCH] x86, kasan: add KASAN checks to atomic operations Dmitry Vyukov <dvyukov@google.com> - 2017-03-14 20:30 +0100

csiph-web