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Message-ID: <1306812384.7903.3.camel@marge.simson.net> Date: Tue, 31 May 2011 05:26:24 +0200 From: Mike Galbraith <efault@....de> To: Hillf Danton <dhillf@...il.com> Cc: Steven Rostedt <rostedt@...dmis.org>, LKML <linux-kernel@...r.kernel.org>, Ingo Molnar <mingo@...e.hu>, Peter Zijlstra <peterz@...radead.org>, Yong Zhang <yong.zhang0@...il.com> Subject: Re: [PATCH] sched: fix need_resched() when checking peempt On Tue, 2011-05-24 at 21:50 +0800, Hillf Danton wrote: > On Tue, May 24, 2011 at 9:39 PM, Steven Rostedt <rostedt@...dmis.org> wrote: > > On Tue, 2011-05-24 at 21:27 +0800, Hillf Danton wrote: > >> When checking if current task could be preempted by a newly woken task, > >> further check could be bypassed if the current thread is different from > >> the current task of run-queue, and it is corrected accordingly. > > > > Ug, that change log is an obfuscated mess. But looking at the actual > > patch, I figured what you wanted to say. How about this: > > > > ---- > > The RT preempt check tests the wrong task if NEED_RESCHED is set. It > > currently checks the local CPU task. It is suppose to check the task > > that is running on the run queue we are about to wake another task on. > > ---- > > > Thanks, it is great changelog:) Has this been queued, or is it awaiting re-submission? -Mike -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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