Messages in this thread | | | Date | Tue, 8 Jun 2021 13:45:27 -0300 | From | Arnaldo Carvalho de Melo <> | Subject | Re: [PATCH v2 5/8] perf auxtrace: Change to use SMP memory barriers |
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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: > > 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 <leo.yan@linaro.org> > > Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Thanks, applied.
- Arnaldo
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