Messages in this thread | | | Date | Fri, 4 Oct 2013 18:28:04 +0200 | From | Peter Zijlstra <> | Subject | Re: [PATCH] ftrace, sched: Add TRACE_FLAG_PREEMPT_RESCHED |
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On Fri, Oct 04, 2013 at 11:57:12AM -0400, Steven Rostedt wrote: > > + need-resched: > > + 'N' both TIF_NEED_RESCHED and PREEMPT_NEED_RESCHED is set, > > + 'n' only TIF_NEED_RESCHED is set, > > + 'p' only PREEMPT_NEED_RESCHED is set, > > + '.' otherwise. > > Yes this is actually good enough. I'll have to spend time to explain > this better. But I'll let you off the hook from doing it for me ;-)
beware; such endevours might lead to books and those are typically out of date by the time they hit the street -- ie. they're a fair waste of time ;-)
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