linux-kernel - Re: [PATCH RESEND v10] sched/deadline: support dl task migration during cpu hotplug

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Message-ID: <551A6108.2080508@arm.com>
Date:	Tue, 31 Mar 2015 09:55:36 +0100
From:	Juri Lelli <juri.lelli@....com>
To:	Peter Zijlstra <peterz@...radead.org>
CC:	Ingo Molnar <mingo@...nel.org>,
	Wanpeng Li <wanpeng.li@...ux.intel.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"juri.lelli@...il.com" <juri.lelli@...il.com>
Subject: Re: [PATCH RESEND v10] sched/deadline: support dl task migration
 during cpu hotplug

Hi Peter,

On 30/03/15 10:12, Peter Zijlstra wrote:
> On Tue, Mar 24, 2015 at 09:27:09AM +0000, Juri Lelli wrote:
>> Right, it should not happen. It happens because hotplug operations are
>> destructive w.r.t. cpusets. Peter, how about we move the check you put
>> in sched_cpu_inactive() to cpuset_cpu_inactive()? This way, if we fail,
>> we don't need to destroy/rebuild the domains.
> 
> Seems ok to my Monday brain, could you shoot a coherent Changelog this
> way so that I can copy/paste it into the patch?
> 

Sent it out as an updated patch.

Thanks,

- Juri

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