Re: [PATCH 0/3] hrtimer: HRTIMER_STATE_ fixes

From	Peter Zijlstra <peterz@infradead.org>
Newsgroups	linux.kernel
Subject	Re: [PATCH 0/3] hrtimer: HRTIMER_STATE_ fixes
Date	2015-06-08 21:10 +0200
Message-ID	<pzaAO-7UC-27@gated-at.bofh.it> (permalink)
References	(3 earlier) <pz1nR-2xQ-17@gated-at.bofh.it> <pz64b-10l-37@gated-at.bofh.it> <pz70e-2uU-7@gated-at.bofh.it> <pz7jz-2Uc-1@gated-at.bofh.it> <pz8Sm-5iZ-1@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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On Mon, 2015-06-08 at 19:11 +0200, Thomas Gleixner wrote:

> > Ah, yes, we could introduce timerqueue_is_queued() which uses
> > RB_EMPTY_NODE(). Obviating the need for hrtimer::state entirely.
> 
> Which won't work for the migration case unless we have some trickery
> like we do with double linked lists (not setting the prev member to
> NULL on dequeue).

Yeah, that dawned on me while away from the computer.

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Thread

Re: [PATCH 08/14] hrtimer: Allow hrtimer::function() to free the  timer Oleg Nesterov <oleg@redhat.com> - 2015-06-08 00:40 +0200
  Re: [PATCH 08/14] hrtimer: Allow hrtimer::function() to free the  timer Oleg Nesterov <oleg@redhat.com> - 2015-06-08 01:00 +0200
  Re: [PATCH 08/14] hrtimer: Allow hrtimer::function() to free the  timer Peter Zijlstra <peterz@infradead.org> - 2015-06-08 13:00 +0200
  Re: [PATCH 0/3] hrtimer: HRTIMER_STATE_ fixes Peter Zijlstra <peterz@infradead.org> - 2015-06-08 21:10 +0200
  Re: [PATCH 08/14] hrtimer: Allow hrtimer::function() to free the  timer Peter Zijlstra <peterz@infradead.org> - 2015-06-11 00:40 +0200

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