7 Jun
2021
7 Jun
'21
3:29 p.m.
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