| Date | Fri, 21 Feb 2020 14:34:33 +0100 | From | Peter Zijlstra <> | Subject | [PATCH v4 17/27] perf,tracing: Allow function tracing when !RCU |
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Since perf is now able to deal with !rcu_is_watching() contexts, remove the restraint.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> --- kernel/trace/trace_event_perf.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/kernel/trace/trace_event_perf.c +++ b/kernel/trace/trace_event_perf.c @@ -477,7 +477,7 @@ static int perf_ftrace_function_register { struct ftrace_ops *ops = &event->ftrace_ops; - ops->flags = FTRACE_OPS_FL_RCU; + ops->flags = 0; ops->func = perf_ftrace_function_call; ops->private = (void *)(unsigned long)nr_cpu_ids;
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