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From: Tejun Heo <tj@kernel.org>
To: Waiman Long <longman@redhat.com>
Cc: Zefan Li <lizefan.x@bytedance.com>,
	Johannes Weiner <hannes@cmpxchg.org>,
	Jonathan Corbet <corbet@lwn.net>, Shuah Khan <shuah@kernel.org>,
	linux-kernel@vger.kernel.org, cgroups@vger.kernel.org,
	linux-doc@vger.kernel.org, linux-kselftest@vger.kernel.org,
	Juri Lelli <juri.lelli@redhat.com>,
	Valentin Schneider <vschneid@redhat.com>,
	Frederic Weisbecker <frederic@kernel.org>
Subject: Re: [RFC PATCH 0/5] cgroup/cpuset: A new "isolcpus" paritition
Date: Wed, 12 Apr 2023 14:03:32 -1000	[thread overview]
Message-ID: <ZDdG1K0kTETZMTCu@slm.duckdns.org> (raw)
In-Reply-To: <e38f72aa-9705-cf0c-a565-fb790f16c53e@redhat.com>

Hello,

On Wed, Apr 12, 2023 at 04:33:29PM -0400, Waiman Long wrote:
> I think we can. You mean having a new "cpuset.cpus.isolated" cgroupfs file.
> So there will be one in the root cgroup that defines all the isolated CPUs
> one can have. It is then distributed down the hierarchy and can be claimed
> only if a cgroup becomes an "isolated" partition. There will be a slight

Yeah, that seems a lot more congruent with the typical pattern.

> change in the semantics of an "isolated" partition, but I doubt there will
> be much users out there.

I haven't thought through it too hard but what prevents staying compatible
with the current behavior?

> If you are OK with this approach, I can modify my patch series to do that.

Thanks.

-- 
tejun

  reply	other threads:[~2023-04-13  0:03 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-04-12 15:37 [RFC PATCH 0/5] cgroup/cpuset: A new "isolcpus" paritition Waiman Long
2023-04-12 19:28 ` Tejun Heo
     [not found]   ` <1ce6a073-e573-0c32-c3d8-f67f3d389a28@redhat.com>
2023-04-12 20:22     ` Tejun Heo
2023-04-12 20:33       ` Waiman Long
2023-04-13  0:03         ` Tejun Heo [this message]
2023-04-13  0:26           ` Waiman Long
2023-04-13  0:33             ` Tejun Heo
2023-04-13  0:55               ` Waiman Long
2023-04-13  1:17                 ` Tejun Heo
2023-04-13  1:55                   ` Waiman Long
2023-04-14  1:22                     ` Waiman Long
2023-04-14 16:54                       ` Tejun Heo
2023-04-14 17:29                         ` Waiman Long
2023-04-14 17:34                           ` Tejun Heo
2023-04-14 17:38                             ` Waiman Long
2023-04-14 19:06                               ` Waiman Long
2023-05-02 18:01                                 ` Michal Koutný
2023-05-02 21:26                                   ` Waiman Long
2023-05-02 22:27                                     ` Michal Koutný
2023-05-04  3:01                                       ` Waiman Long
2023-05-05 16:03                                         ` Tejun Heo
2023-05-05 16:25                                           ` Waiman Long
2023-05-08  1:03                                             ` Waiman Long
2023-05-22 19:49                                               ` Tejun Heo
2023-05-28 21:18                                                 ` Waiman Long
2023-06-05 18:03                                                   ` Tejun Heo
2023-06-05 20:00                                                     ` Waiman Long
2023-06-05 20:27                                                       ` Tejun Heo
2023-06-06  2:47                                                         ` Waiman Long
2023-06-06 19:58                                                           ` Tejun Heo
2023-06-06 20:11                                                             ` Waiman Long
2023-06-06 20:13                                                               ` Tejun Heo

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