Commit b427e765 authored by Xianting Tian's avatar Xianting Tian Committed by Steven Rostedt (VMware)

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.comSigned-off-by: default avatarXianting Tian <tian.xianting@h3c.com>
Signed-off-by: default avatarSteven Rostedt (VMware) <rostedt@goodmis.org>
parent 5c8c206e
...@@ -2511,7 +2511,7 @@ void trace_buffered_event_enable(void) ...@@ -2511,7 +2511,7 @@ void trace_buffered_event_enable(void)
preempt_disable(); preempt_disable();
if (cpu == smp_processor_id() && if (cpu == smp_processor_id() &&
this_cpu_read(trace_buffered_event) != __this_cpu_read(trace_buffered_event) !=
per_cpu(trace_buffered_event, cpu)) per_cpu(trace_buffered_event, cpu))
WARN_ON_ONCE(1); WARN_ON_ONCE(1);
preempt_enable(); preempt_enable();
......
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