Messages in this thread | | | Date | Fri, 10 Dec 2021 12:51:55 -0500 | From | Steven Rostedt <> | Subject | Re: [RFC PATCH] trace: Account bottom half disabled sections. |
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On Fri, 10 Dec 2021 16:37:06 +0100 Sebastian Andrzej Siewior <bigeasy@linutronix.de> wrote:
> Disabling only bottom halves via local_bh_disable() disables also > preemption but this remains invisible to tracing. On a CONFIG_PREEMPT > kernel one might wonder why there is no scheduling happening despite the > N flag in the trace. The reason might be a rcu_read_lock_bh() section. > > Add a 'b' to the tracing output if in task context with disabled bottom > halves. > > Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> >
Looks good to me. Care to resend without the RFC attached, and that will make sure it gets into my scripts.
Thanks!
-- Steve
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