From: Tejun Heo <tj-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
To: Waiman Long <longman-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
Cc: Peter Zijlstra <peterz-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>,
lizefan-hv44wF8Li93QT0dZR+AlfA@public.gmane.org,
hannes-druUgvl0LCNAfugRpC6u6w@public.gmane.org,
mingo-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org,
cgroups-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
kernel-team-b10kYP2dOMg@public.gmane.org,
pjt-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org,
luto-kltTT9wpgjJwATOyAt5JVQ@public.gmane.org,
efault-Mmb7MZpHnFY@public.gmane.org,
torvalds-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org,
guro-b10kYP2dOMg@public.gmane.org
Subject: Re: [PATCH 5/6] cgroup: implement cgroup v2 thread support
Date: Wed, 19 Jul 2017 13:48:42 -0400 [thread overview]
Message-ID: <20170719174842.GR3365493@devbig577.frc2.facebook.com> (raw)
In-Reply-To: <e6a9daf1-461d-080c-a301-12cdad5e2b73-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
Hello, Waiman.
On Wed, Jul 19, 2017 at 01:09:38PM -0400, Waiman Long wrote:
> For me, that is the only good reason why we should keep the current
> behavior. So I am fine with that.
>
> + cgrp->dom_cgrp = cgrp->dom_cgrp;
>
> However, I am still puzzled by above line of code, should it be just
>
> cgrp->dom_cgrp = cgrp;
Oh I see. Yeah, that's just a silly (harmless) bug. The field gets
properly initialized in init_cgroup_housekeeping(). I'll remove that
line.
Thanks!
--
tejun
WARNING: multiple messages have this Message-ID (diff)
From: Tejun Heo <tj@kernel.org>
To: Waiman Long <longman@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>,
lizefan@huawei.com, hannes@cmpxchg.org, mingo@redhat.com,
cgroups@vger.kernel.org, linux-kernel@vger.kernel.org,
kernel-team@fb.com, pjt@google.com, luto@amacapital.net,
efault@gmx.de, torvalds@linux-foundation.org, guro@fb.com
Subject: Re: [PATCH 5/6] cgroup: implement cgroup v2 thread support
Date: Wed, 19 Jul 2017 13:48:42 -0400 [thread overview]
Message-ID: <20170719174842.GR3365493@devbig577.frc2.facebook.com> (raw)
In-Reply-To: <e6a9daf1-461d-080c-a301-12cdad5e2b73@redhat.com>
Hello, Waiman.
On Wed, Jul 19, 2017 at 01:09:38PM -0400, Waiman Long wrote:
> For me, that is the only good reason why we should keep the current
> behavior. So I am fine with that.
>
> + cgrp->dom_cgrp = cgrp->dom_cgrp;
>
> However, I am still puzzled by above line of code, should it be just
>
> cgrp->dom_cgrp = cgrp;
Oh I see. Yeah, that's just a silly (harmless) bug. The field gets
properly initialized in init_cgroup_housekeeping(). I'll remove that
line.
Thanks!
--
tejun
next prev parent reply other threads:[~2017-07-19 17:48 UTC|newest]
Thread overview: 43+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-07-17 2:07 [PATCHSET for-4.13] cgroup: implement cgroup2 thread mode, v3 Tejun Heo
2017-07-17 2:07 ` Tejun Heo
2017-07-17 2:07 ` [PATCH 1/6] cgroup: reorganize cgroup.procs / task write path Tejun Heo
2017-07-17 2:07 ` [PATCH 2/6] cgroup: add @flags to css_task_iter_start() and implement CSS_TASK_ITER_PROCS Tejun Heo
2017-07-17 2:07 ` [PATCH 3/6] cgroup: introduce cgroup->dom_cgrp and threaded css_set handling Tejun Heo
2017-07-17 2:07 ` [PATCH 4/6] cgroup: implement CSS_TASK_ITER_THREADED Tejun Heo
2017-07-17 2:07 ` [PATCH 5/6] cgroup: implement cgroup v2 thread support Tejun Heo
[not found] ` <20170717020721.3612468-6-tj-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
2017-07-17 14:14 ` Peter Zijlstra
2017-07-17 14:14 ` Peter Zijlstra
2017-07-17 14:26 ` Tejun Heo
2017-07-18 17:28 ` Peter Zijlstra
[not found] ` <20170718172801.f56273tzgzn3xkne-Nxj+rRp3nVydTX5a5knrm8zTDFooKrT+cvkQGrU6aU0@public.gmane.org>
2017-07-18 17:35 ` Waiman Long
2017-07-18 17:35 ` Waiman Long
2017-07-18 17:54 ` Tejun Heo
2017-07-18 17:54 ` Tejun Heo
2017-07-18 18:41 ` Peter Zijlstra
2017-07-18 18:47 ` Tejun Heo
[not found] ` <20170718184714.GA3365493-4dN5La/x3IkLX0oZNxdnEQ2O0Ztt9esIQQ4Iyu8u01E@public.gmane.org>
2017-07-19 14:07 ` Peter Zijlstra
2017-07-19 14:07 ` Peter Zijlstra
2017-07-19 16:34 ` Tejun Heo
2017-07-17 20:56 ` Waiman Long
2017-07-18 14:37 ` Waiman Long
[not found] ` <5fa00590-551f-85d2-511b-ef4033781228-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2017-07-18 17:10 ` Tejun Heo
2017-07-18 17:10 ` Tejun Heo
2017-07-18 17:23 ` Waiman Long
[not found] ` <df14a222-f1f8-3415-b29a-2712c9e77f94-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2017-07-19 16:29 ` Tejun Heo
2017-07-19 16:29 ` Tejun Heo
[not found] ` <20170719162937.GP3365493-4dN5La/x3IkLX0oZNxdnEQ2O0Ztt9esIQQ4Iyu8u01E@public.gmane.org>
2017-07-19 17:09 ` Waiman Long
2017-07-19 17:09 ` Waiman Long
[not found] ` <e6a9daf1-461d-080c-a301-12cdad5e2b73-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2017-07-19 17:48 ` Tejun Heo [this message]
2017-07-19 17:48 ` Tejun Heo
2017-07-17 21:12 ` Waiman Long
[not found] ` <199bfed8-de84-da6d-6623-c45524443aaa-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2017-07-19 15:40 ` Tejun Heo
2017-07-19 15:40 ` Tejun Heo
2017-07-17 2:07 ` [PATCH 6/6] cgroup: update debug controller to print out thread mode information Tejun Heo
2017-07-17 21:19 ` Waiman Long
2017-07-19 15:31 ` Tejun Heo
2017-07-19 15:41 ` Waiman Long
2017-07-19 15:44 ` Tejun Heo
[not found] ` <20170717020721.3612468-1-tj-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
2017-07-17 14:48 ` [PATCHSET for-4.13] cgroup: implement cgroup2 thread mode, v3 Waiman Long
2017-07-17 14:48 ` Waiman Long
2017-07-17 14:51 ` Tejun Heo
-- strict thread matches above, loose matches on Subject: below --
2017-07-19 19:44 [PATCHSET for-4.13] cgroup: implement cgroup2 thread mode, v4 Tejun Heo
2017-07-19 19:44 ` [PATCH 5/6] cgroup: implement cgroup v2 thread support Tejun Heo
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