Re: [PATCH v2] arch: use WRITE_ONCE/READ_ONCE in smp_store_release/smp_load_acquire

[Ralf Baechle]

On Sun, Aug 02, 2015 at 05:11:04PM +0200, Andrey Konovalov wrote:

> diff --git a/arch/mips/include/asm/barrier.h b/arch/mips/include/asm/barrier.h
> index 7ecba84..752e0b8 100644
> --- a/arch/mips/include/asm/barrier.h
> +++ b/arch/mips/include/asm/barrier.h
> @@ -133,12 +133,12 @@
>  do {									\
>  	compiletime_assert_atomic_type(*p);				\
>  	smp_mb();							\
> -	ACCESS_ONCE(*p) = (v);						\
> +	WRITE_ONCE(*p, v);						\
>  } while (0)
>  
>  #define smp_load_acquire(p)						\
>  ({									\
> -	typeof(*p) ___p1 = ACCESS_ONCE(*p);				\
> +	typeof(*p) ___p1 = READ_ONCE(*p);				\
>  	compiletime_assert_atomic_type(*p);				\
>  	smp_mb();							\
>  	___p1;								\

Acked-by: Ralf Baechle <ralf@xxxxxxxxxxxxxx>

  Ralf
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