linux-kernel - Re: [PATCH] sched: try to rewrite tg_has_rt

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Date:	Sat, 23 Apr 2011 22:31:28 +0800
From:	Yong Zhang <yong.zhang0@...il.com>
To:	Hillf Danton <dhillf@...il.com>
Cc:	LKML <linux-kernel@...r.kernel.org>, Ingo Molnar <mingo@...e.hu>,
	Peter Zijlstra <peterz@...radead.org>
Subject: Re: [PATCH] sched: try to rewrite tg_has_rt_tasks()

On Sat, Apr 23, 2011 at 10:19:19PM +0800, Hillf Danton wrote:
> On Sat, Apr 23, 2011 at 10:11 PM, Yong Zhang <yong.zhang0@...il.com> wrote:
> > On Sat, Apr 23, 2011 at 09:39:40PM +0800, Hillf Danton wrote:
> >> It is reshuffled not based upon scanning the list of existing threads
> >> but upon the relevant info carried by the input task group. Compared
> >> with the original, it is simpler, and nothing important is missed.
> >
> > Oh, no.
> >
> > There may be sleep task which is attach this group.
> >
> 
> Would you please say a few more words about the "sleep task"?

Only RUNNING task is counted to rt_nr_running, SLEEP task
is not on the run queue.

Thanks,
Yong
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