[PATCH v2] arch: use WRITE_ONCE/READ_ONCE in smp_store_release/smp_load_acquire
Ralf Baechle
ralf at linux-mips.org
Mon Aug 3 16:02:17 AEST 2015
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 at linux-mips.org>
Ralf
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