On Wed, Jun 03, 2015 at 01:42:41PM +0300, Kirill Tkhai wrote:
> [resend]
>
> 03.06.2015, 10:32, "Peter Zijlstra" <pet...@infradead.org>:
> > On Tue, Jun 02, 2015 at 07:27:19PM +0300, Kirill Tkhai wrote:
> >>> + * task_dead_dl() will cancel our timer if we happen to die while
> >>> + * its still pending.
> >> task_dead_dl() is called for tasks of deadline class only. So if we do
> >> that,
> >> the timer may be executed after final task's dead.
> >
> > Indeed; sleep deprived brain misses the obvious :/
>
> I have an idea, but it require small hrtimer modification. We may use
> task_struct counters {get,put}_task_struct(), when we're starting or
> cancelling
> the timer, and in timer handler. But it require to return back the commit:
Yeah, already working on that. :-)
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