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Re: [RFC][PATCH] sched: Cleanup task->state printing

From Markus Trippelsdorf <markus@trippelsdorf.de>
Newsgroups linux.kernel
Subject Re: [RFC][PATCH] sched: Cleanup task->state printing
Date 2017-09-22 14:50 +0200
Message-ID <usvz4-68T-33@gated-at.bofh.it> (permalink)
References (3 earlier) <us7wL-cK-25@gated-at.bofh.it> <us8VP-Zu-17@gated-at.bofh.it> <usaXD-2gx-1@gated-at.bofh.it> <ussBc-4qH-17@gated-at.bofh.it> <usuMF-5Em-13@gated-at.bofh.it>
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On 2017.09.22 at 13:54 +0200, Peter Zijlstra wrote:
> On Fri, Sep 22, 2017 at 11:35:33AM +0200, Markus Trippelsdorf wrote:
> > > It seems to work. Simply returning "I (idle)" from get_task_state() in
> > > fs/proc/array.c when the state is TASK_IDLE does the trick.
> > > I've tested top, htop and ps.
> 
> I ended up with the below; there was quite a lot of inconsistent state
> printing around it seems.
> 
> I should probably split this thing into a bunch of patches :/
> 
> Alongside an explicit idle state, this also exposes TASK_PARKED,
> although arguably we could map that to idle too. Opinions?

Looks good to me and works as expected.
Many thanks.

-- 
Markus

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Re: Worker threads in D state since c5a94a618e7ac86 (workqueue: Use  TASK_IDLE) Tejun Heo <tj@kernel.org> - 2017-09-11 15:20 +0200
  Re: Worker threads in D state since c5a94a618e7ac86 (workqueue: Use  TASK_IDLE) Markus Trippelsdorf <markus@trippelsdorf.de> - 2017-09-11 16:30 +0200
    Re: Worker threads in D state since c5a94a618e7ac86 (workqueue: Use  TASK_IDLE) Markus Trippelsdorf <markus@trippelsdorf.de> - 2017-09-21 13:10 +0200
      Re: Worker threads in D state since c5a94a618e7ac86 (workqueue: Use  TASK_IDLE) Peter Zijlstra <peterz@infradead.org> - 2017-09-21 14:40 +0200
        Re: Worker threads in D state since c5a94a618e7ac86 (workqueue: Use  TASK_IDLE) Markus Trippelsdorf <markus@trippelsdorf.de> - 2017-09-21 16:50 +0200
          Re: Worker threads in D state since c5a94a618e7ac86 (workqueue: Use  TASK_IDLE) Markus Trippelsdorf <markus@trippelsdorf.de> - 2017-09-22 11:40 +0200
            [RFC][PATCH] sched: Cleanup task->state printing Peter Zijlstra <peterz@infradead.org> - 2017-09-22 14:00 +0200
              Re: [RFC][PATCH] sched: Cleanup task->state printing Markus Trippelsdorf <markus@trippelsdorf.de> - 2017-09-22 14:50 +0200
              Re: [RFC][PATCH] sched: Cleanup task->state printing Steven Rostedt <rostedt@goodmis.org> - 2017-09-22 16:20 +0200
                Re: [RFC][PATCH] sched: Cleanup task->state printing Peter Zijlstra <peterz@infradead.org> - 2017-09-22 18:00 +0200

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