Re: [PATCH v2 5/8] perf auxtrace: Change to use SMP memory barriers

[Arnaldo Carvalho de Melo]

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@xxxxxxxxxx>
> 
> Acked-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx>

Thanks, applied.

- Arnaldo