From: Xianting Tian <[email protected]> The code is executed with preemption disabled, so it's safe to use __this_cpu_read().
Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: Xianting Tian <[email protected]> Signed-off-by: Steven Rostedt (VMware) <[email protected]> --- kernel/trace/trace.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index 8fac7d6db222..1c4ca25944ba 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -2511,7 +2511,7 @@ void trace_buffered_event_enable(void) preempt_disable(); if (cpu == smp_processor_id() && - this_cpu_read(trace_buffered_event) != + __this_cpu_read(trace_buffered_event) != per_cpu(trace_buffered_event, cpu)) WARN_ON_ONCE(1); preempt_enable(); -- 2.28.0
