From: Tejun Heo <tj@kernel.org>
To: Peter Zijlstra <peterz@infradead.org>
Cc: Kirill Tkhai <tkhai@yandex.ru>,
Burke Libbey <burke.libbey@shopify.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"mingo@kernel.org" <mingo@kernel.org>
Subject: Re: [PATCH] sched: reset sched_entity depth on changing parent
Date: Mon, 27 Oct 2014 08:40:02 -0400 [thread overview]
Message-ID: <20141027124002.GA4436@htj.dyndns.org> (raw)
In-Reply-To: <20141027120734.GA3337@twins.programming.kicks-ass.net>
On Mon, Oct 27, 2014 at 01:07:34PM +0100, Peter Zijlstra wrote:
> On Fri, Oct 24, 2014 at 09:18:42PM +0400, Kirill Tkhai wrote:
> > I was seeking a places where task_group of a task may change. I can't understand
> > how changing of parent's cgroup during fork() applies to a child.
>
> I didn't know we could change cgroup on fork(), I though the idea was
> you always inherited your parents cgroup.
>
> How can this be?
Hmmm? -ENEEDMORECONTEXT but the inheriting happens at one point during
fork in cgroup_post_fork(). The child inherits whatever the parent
cgroup is at that point.
Thanks.
--
tejun
next prev parent reply other threads:[~2014-10-27 12:40 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-10-24 15:07 [PATCH] sched: reset sched_entity depth on changing parent Burke Libbey
2014-10-24 15:58 ` Peter Zijlstra
2014-10-24 17:18 ` Kirill Tkhai
2014-10-27 9:49 ` Kirill Tkhai
2014-10-27 12:07 ` Peter Zijlstra
2014-10-27 12:40 ` Tejun Heo [this message]
2014-10-27 13:28 ` Peter Zijlstra
2014-10-27 13:36 ` Kirill Tkhai
2014-10-27 13:45 ` Peter Zijlstra
2014-10-27 13:48 ` Kirill Tkhai
2014-10-27 13:47 ` Tejun Heo
2014-10-27 13:48 ` Tejun Heo
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