From: Christian Brauner <christian.brauner-GeWIH/nMZzLQT0dZR+AlfA@public.gmane.org>
To: "Michal Koutný" <mkoutny-IBi9RG/b67k@public.gmane.org>
Cc: linux-api-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
Tejun Heo <tj-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
Oleg Nesterov <oleg-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>,
Ingo Molnar <mingo-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>,
Johannes Weiner <hannes-druUgvl0LCNAfugRpC6u6w@public.gmane.org>,
Li Zefan <lizefan-hv44wF8Li93QT0dZR+AlfA@public.gmane.org>,
Peter Zijlstra <peterz-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>,
cgroups-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Re: [PATCH v5 5/6] clone3: allow spawning processes into cgroups
Date: Tue, 4 Feb 2020 12:13:07 +0100 [thread overview]
Message-ID: <20200204111307.hxtundpcneju2y7n@wittgenstein> (raw)
In-Reply-To: <20200203143228.GC13360-9OudH3eul5jcvrawFnH+a6VXKuFTiq87@public.gmane.org>
On Mon, Feb 03, 2020 at 03:32:28PM +0100, Michal Koutný wrote:
> On Sun, Feb 02, 2020 at 10:37:02AM +0100, Christian Brauner <christian.brauner-GeWIH/nMZzLQT0dZR+AlfA@public.gmane.org> wrote:
> > cgroup_post_fork() is called past the point of no return for fork and
> > cgroup_css_set_put_fork() is explicitly documented as only being
> > callable before forks point of no return:
> I missed this and somehow incorrectly assumed it's called at the end of
> fork too. I find the css_set refcounting correct now.
>
> BTW any reason why not to utilize cgroup_css_set_put_fork() for the
> regular cleanup in cgroup_post_fork() too?
Hmyeah, should be doable if we do:
kargs->cset = NULL;
cgroup_css_set_put_fork(kargs);
Christian
next prev parent reply other threads:[~2020-02-04 11:13 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-21 15:48 [PATCH v5 0/6] clone3 & cgroups: allow spawning processes into cgroups Christian Brauner
2020-01-21 15:48 ` [PATCH v5 1/6] cgroup: unify attach permission checking Christian Brauner
2020-01-29 13:25 ` Michal Koutný
2020-01-21 15:48 ` [PATCH v5 2/6] cgroup: add cgroup_get_from_file() helper Christian Brauner
[not found] ` <20200121154844.411-3-christian.brauner-GeWIH/nMZzLQT0dZR+AlfA@public.gmane.org>
2020-01-29 13:25 ` Michal Koutný
2020-01-21 15:48 ` [PATCH v5 3/6] cgroup: refactor fork helpers Christian Brauner
[not found] ` <20200121154844.411-4-christian.brauner-GeWIH/nMZzLQT0dZR+AlfA@public.gmane.org>
2020-01-29 13:26 ` Michal Koutný
2020-01-21 15:48 ` [PATCH v5 4/6] cgroup: add cgroup_may_write() helper Christian Brauner
[not found] ` <20200121154844.411-1-christian.brauner-GeWIH/nMZzLQT0dZR+AlfA@public.gmane.org>
2020-01-21 15:48 ` [PATCH v5 5/6] clone3: allow spawning processes into cgroups Christian Brauner
[not found] ` <20200121154844.411-6-christian.brauner-GeWIH/nMZzLQT0dZR+AlfA@public.gmane.org>
2020-01-29 13:27 ` Michal Koutný
[not found] ` <20200129132719.GD11384-9OudH3eul5jcvrawFnH+a6VXKuFTiq87@public.gmane.org>
2020-02-02 9:37 ` Christian Brauner
2020-02-03 14:32 ` Michal Koutný
[not found] ` <20200203143228.GC13360-9OudH3eul5jcvrawFnH+a6VXKuFTiq87@public.gmane.org>
2020-02-04 11:13 ` Christian Brauner [this message]
2020-02-04 11:53 ` Peter Zijlstra
[not found] ` <20200204115351.GD14879-Nxj+rRp3nVydTX5a5knrm8zTDFooKrT+cvkQGrU6aU0@public.gmane.org>
2020-02-04 15:01 ` Christian Brauner
2020-01-21 15:48 ` [PATCH v5 6/6] selftests/cgroup: add tests for cloning " Christian Brauner
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20200204111307.hxtundpcneju2y7n@wittgenstein \
--to=christian.brauner-gewih/nmzzlqt0dzr+alfa@public.gmane.org \
--cc=cgroups-u79uwXL29TY76Z2rM5mHXA@public.gmane.org \
--cc=hannes-druUgvl0LCNAfugRpC6u6w@public.gmane.org \
--cc=linux-api-u79uwXL29TY76Z2rM5mHXA@public.gmane.org \
--cc=linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org \
--cc=lizefan-hv44wF8Li93QT0dZR+AlfA@public.gmane.org \
--cc=mingo-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org \
--cc=mkoutny-IBi9RG/b67k@public.gmane.org \
--cc=oleg-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org \
--cc=peterz-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org \
--cc=tj-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox