tracing: Use __this_cpu_read() in trace_buffered_event_enable()
The code is executed with preemption disabled, so it's
safe to use __this_cpu_read().
Link: https://lkml.kernel.org/r/20200813112803.12256-1-tian.xianting@h3c.com
Signed-off-by: Xianting Tian <tian.xianting@h3c.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index 8fac7d6..1c4ca25 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();