Re: [PATCH v2 5/8] perf auxtrace: Change to use SMP memory barriers
From: Arnaldo Carvalho de Melo <acme@kernel.org>
Date: 2021-06-08 16:45:34
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linux-perf-users, lkml
Em Mon, Jun 07, 2021 at 05:29:55PM +0200, Peter Zijlstra escreveu:
On Wed, Jun 02, 2021 at 06:30:04PM +0800, Leo Yan wrote:quoted
The kernel and the userspace tool can access the AUX ring buffer head and tail from different CPUs, thus SMP class of barriers are required on SMP system. This patch changes to use SMP barriers to replace mb() and rmb() barriers. Signed-off-by: Leo Yan <redacted>Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Thanks, applied. - Arnaldo _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel