linux-kernel - Re: [PATCH v3 1/4] sched/rt: Check to push the task away after its affinity was changed

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Message-ID: <1432983263.11346.15.camel@twins>
Date:	Sat, 30 May 2015 12:54:23 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	pang.xunlei@....com.cn
Cc:	Juri Lelli <juri.lelli@...il.com>, linux-kernel@...r.kernel.org,
	Ingo Molnar <mingo@...hat.com>,
	Xunlei Pang <pang.xunlei@...aro.org>,
	Steven Rostedt <rostedt@...dmis.org>,
	Xunlei Pang <xlpang@....com>
Subject: Re: [PATCH v3 1/4] sched/rt: Check to push the task away after its
 affinity was changed

On Sat, 2015-05-30 at 10:20 +0200, Peter Zijlstra wrote:
> Makes me like the thing even less though..

Steven, why do we normally push on schedule()? Would not the natural
location be where we add to pushable_tasks?

Which would be here in set_cpus_allowed() and wakeups. schedule() seems
like a second best location.


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