From: "Michal Koutný" <mkoutny-IBi9RG/b67k@public.gmane.org>
To: Christian Brauner
<christian.brauner-GeWIH/nMZzLQT0dZR+AlfA@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: Mon, 3 Feb 2020 15:32:28 +0100 [thread overview]
Message-ID: <20200203143228.GC13360@blackbody.suse.cz> (raw)
In-Reply-To: <20200202093702.cdlyytywty7hk3rn@wittgenstein>
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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?
Thanks,
Michal
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next prev parent reply other threads:[~2020-02-03 14:32 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 [this message]
[not found] ` <20200203143228.GC13360-9OudH3eul5jcvrawFnH+a6VXKuFTiq87@public.gmane.org>
2020-02-04 11:13 ` Christian Brauner
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
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