From: Tejun Heo <tj-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
To: Aleksa Sarai <cyphar-gVpy/LI/lHzQT0dZR+AlfA@public.gmane.org>
Cc: lizefan-hv44wF8Li93QT0dZR+AlfA@public.gmane.org,
mingo-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org,
peterz-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org,
richard-/L3Ra7n9ekc@public.gmane.org,
"Frédéric Weisbecker"
<fweisbec-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
cgroups-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Re: [PATCH v6 2/3] cgroups: allow a cgroup subsystem to reject a fork
Date: Thu, 26 Mar 2015 18:18:23 -0400 [thread overview]
Message-ID: <20150326221823.GG1953@htj.duckdns.org> (raw)
In-Reply-To: <CAOviyah+5DFxYtUo1=LMdQLAte=YR1s4JYoH_DNZEfpoBUfSRw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
On Fri, Mar 27, 2015 at 08:41:05AM +1100, Aleksa Sarai wrote:
> > You can't pin css_set from inside cgroup callbacks. It's a construct
> > which in general shouldn't be accessible outside cgroup core.
>
> Yeah, sorry I meant css (you aren't pinning, but you're still saving under RCU
> and dealing with the association-related stuff inside post_fork).
How would that work without pinning? What'd keep the css from going
away between pre and post?
Thanks.
--
tejun
next prev parent reply other threads:[~2015-03-26 22:18 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-03-14 4:37 [PATCH v6 0/3] cgroups: add pids subsystem Aleksa Sarai
2015-03-14 4:37 ` [PATCH v6 1/3] cgroups: use bitmask to filter for_each_subsys Aleksa Sarai
2015-03-16 16:42 ` Tejun Heo
2015-03-14 4:37 ` [PATCH v6 2/3] cgroups: allow a cgroup subsystem to reject a fork Aleksa Sarai
[not found] ` <1426307835-5893-3-git-send-email-cyphar-gVpy/LI/lHzQT0dZR+AlfA@public.gmane.org>
2015-03-16 16:53 ` Tejun Heo
[not found] ` <20150316165335.GC8353-piEFEHQLUPpN0TnZuCh8vA@public.gmane.org>
2015-03-21 11:25 ` Aleksa Sarai
[not found] ` <CAOviyagGvm4z8eAWitR267U3br-60vVJ9A5MMtFENy9xt9zuLQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2015-03-26 15:08 ` Tejun Heo
2015-03-26 14:38 ` Aleksa Sarai
[not found] ` <CAOviyahTq1K6zBRfmXfepabiQ7xU8ZoNdq0jPd3nP4Q-0H1DDQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2015-03-26 15:02 ` Tejun Heo
2015-03-26 21:41 ` Aleksa Sarai
[not found] ` <CAOviyah+5DFxYtUo1=LMdQLAte=YR1s4JYoH_DNZEfpoBUfSRw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2015-03-26 22:18 ` Tejun Heo [this message]
2015-03-14 4:37 ` [PATCH v6 3/3] cgroups: add a pids subsystem Aleksa Sarai
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