From: ralf@linux-mips.org (Ralf Baechle)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2] arch: use WRITE_ONCE/READ_ONCE in smp_store_release/smp_load_acquire
Date: Mon, 3 Aug 2015 08:02:17 +0200 [thread overview]
Message-ID: <20150803060217.GB16650@linux-mips.org> (raw)
In-Reply-To: <1438528264-714-1-git-send-email-andreyknvl@google.com>
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@linux-mips.org>
Ralf
prev parent reply other threads:[~2015-08-03 6:02 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-08-02 15:11 [PATCH v2] arch: use WRITE_ONCE/READ_ONCE in smp_store_release/smp_load_acquire Andrey Konovalov
2015-08-02 16:08 ` Peter Zijlstra
2015-08-02 20:50 ` Davidlohr Bueso
2015-08-03 1:41 ` Michael Ellerman
2015-08-03 6:02 ` Ralf Baechle [this message]
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