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Re: [RFC][PATCH 11/11] sched: More notrace

From Thomas Gleixner <tglx@linutronix.de>
Newsgroups linux.kernel
Subject Re: [RFC][PATCH 11/11] sched: More notrace
Date 2015-09-29 15:30 +0200
Message-ID <qe38K-7J7-17@gated-at.bofh.it> (permalink)
References <qdZHQ-2IS-3@gated-at.bofh.it> <qdZHQ-2IS-11@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On Tue, 29 Sep 2015, Peter Zijlstra wrote:

> preempt_schedule_common() is marked notrace, but it does not use
> _notrace() preempt_count functions and __schedule() is also not marked
> notrace, which means that its perfectly possible to end up in the
> tracer from preempt_schedule_common().
> 
> So either we need more notrace, or we need to remove notrace from
> preempt_schedule_common().

More notrace is the right thing to do. We have enough pointless
information in tracing already.

Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
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Thread

[RFC][PATCH 11/11] sched: More notrace Peter Zijlstra <peterz@infradead.org> - 2015-09-29 11:50 +0200
  Re: [RFC][PATCH 11/11] sched: More notrace Thomas Gleixner <tglx@linutronix.de> - 2015-09-29 15:30 +0200
  Re: [RFC][PATCH 11/11] sched: More notrace Steven Rostedt <rostedt@goodmis.org> - 2015-09-29 18:00 +0200

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