From: peterz@infradead.org (Peter Zijlstra)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2] arch: use WRITE_ONCE/READ_ONCE in smp_store_release/smp_load_acquire
Date: Sun, 2 Aug 2015 18:08:09 +0200 [thread overview]
Message-ID: <20150802160809.GF25159@twins.programming.kicks-ass.net> (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:
> Replace ACCESS_ONCE() macro in smp_store_release() and smp_load_acquire()
> with WRITE_ONCE() and READ_ONCE() on x86, arm, arm64, ia64, metag, mips,
> powerpc, s390, sparc and asm-generic since ACCESS_ONCE does not work
> reliably on non-scalar types.
>
> WRITE_ONCE() and READ_ONCE() were introduced in the commits 230fa253df63
> ("kernel: Provide READ_ONCE and ASSIGN_ONCE") and 43239cbe79fc ("kernel:
> Change ASSIGN_ONCE(val, x) to WRITE_ONCE(x, val)").
>
> Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Thanks!
next prev parent reply other threads:[~2015-08-02 16:08 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 [this message]
2015-08-02 20:50 ` Davidlohr Bueso
2015-08-03 1:41 ` Michael Ellerman
2015-08-03 6:02 ` Ralf Baechle
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