linux-kernel - Re: [PATCH v2 1/2] ftrace: Add check of sched_stopped for probe_sched

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Date:	Fri, 3 Apr 2009 15:50:40 -0400 (EDT)
From:	Steven Rostedt <rostedt@...dmis.org>
To:	Zhaolei <zhaolei@...fujitsu.com>
cc:	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 1/2] ftrace: Add check of sched_stopped for
 probe_sched_wakeup


On Tue, 31 Mar 2009, Zhaolei wrote:

> We need check sched_stopped in probe_sched_wakeup() to stop tracing when an
> user stops it.
> 
> But current code can also do the right thing(stop tracing after
> echo 0 > tracing_enabled) just because tracing_sched_wakeup_trace() can return
> on buffer->record_disabled.
> 
> Signed-off-by: Zhao Lei <zhaolei@...fujitsu.com>

Thanks, applied.

-- Steve

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