From mboxrd@z Thu Jan  1 00:00:00 1970
From: Tejun Heo <tj@kernel.org>
Subject: Re: [PATCH v6 0/5] sched/deadline: fix cpusets bandwidth accounting
Date: Fri, 18 Jan 2019 08:17:39 -0800
Message-ID: <20190118161739.GE50184@devbig004.ftw2.facebook.com>
References: <20190117084739.17078-1-juri.lelli@redhat.com>
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To: Juri Lelli <juri.lelli@redhat.com>
Cc: peterz@infradead.org, mingo@redhat.com, rostedt@goodmis.org, linux-kernel@vger.kernel.org, luca.abeni@santannapisa.it, claudio@evidence.eu.com, tommaso.cucinotta@santannapisa.it, bristot@redhat.com, mathieu.poirier@linaro.org, lizefan@huawei.com, cgroups@vger.kernel.org

On Thu, Jan 17, 2019 at 09:47:34AM +0100, Juri Lelli wrote:
> Hi,
> 
> v6 of a series of patches, originally authored by Mathieu, with the intent
> of fixing a long standing issue of SCHED_DEADLINE bandwidth accounting.
> As originally reported by Steve [1], when hotplug and/or (certain)
> cpuset reconfiguration operations take place, DEADLINE bandwidth
> accounting information is lost since root domains are destroyed and
> recreated.
> 
> Mathieu's approach is based on restoring bandwidth accounting info on
> the newly created root domains by iterating through the (DEADLINE) tasks
> belonging to the configured cpuset(s).
> 
> Apart from some minor refactoring needed to rebase the set on top of
> Waiman Long's cpuset for cgroup series (now mainline), two changes worth
> of notice:

Generally looks good to me but can you please ask Waiman to take a
look?

Thanks.

-- 
tejun