From: Tejun Heo <tj@kernel.org>
To: Daniel Borkmann <daniel@iogearbox.net>
Cc: David Miller <davem@davemloft.net>,
pablo@netfilter.org, kaber@trash.net, kadlec@blackhole.kfki.hu,
lizefan@huawei.com, hannes@cmpxchg.org, netdev@vger.kernel.org,
netfilter-devel@vger.kernel.org, coreteam@netfilter.org,
cgroups@vger.kernel.org, linux-kernel@vger.kernel.org,
kernel-team@fb.com, daniel.wagner@bmw-carit.de,
nhorman@tuxdriver.com
Subject: Re: [PATCH 4/5] sock, cgroup: add sock->sk_cgroup
Date: Tue, 17 Nov 2015 17:17:57 -0500 [thread overview]
Message-ID: <20151117221757.GI22864@mtj.duckdns.org> (raw)
In-Reply-To: <564BA0BE.7050302@iogearbox.net>
Hello, Daniel.
On Tue, Nov 17, 2015 at 10:48:46PM +0100, Daniel Borkmann wrote:
> >Unfortunately, sk->sk_cgrp_prioidx is an arbitrary value which can be
> >configured through "net_cls.classid". :(
>
> Hmm, isn't net_prio independent of net_cls?
Ah, yeah, I was mixing up the two but the story is the same for both.
net_prio configures the prioidx and net_cls the classid and the two
may or may not (but more likely not) be on the same hierarchy and
definitely not on the cgroup2 hierarchy, so you can't really access
them through a single ->sk_cgroup pointer. After all, that's why we
ended up with these controllers.
Thanks.
--
tejun
next prev parent reply other threads:[~2015-11-17 22:17 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-11-17 19:40 [PATCHSET] netfilter, cgroup: implement xt_cgroup2 match Tejun Heo
2015-11-17 19:40 ` [PATCH 1/5] cgroup: record ancestor IDs and reimplement cgroup_is_descendant() using it Tejun Heo
2015-11-17 22:54 ` Jan Engelhardt
2015-11-17 23:03 ` Tejun Heo
2015-11-17 19:40 ` [PATCH 2/5] kernfs: implement kernfs_walk_and_get() Tejun Heo
2015-11-17 21:20 ` David Miller
2015-11-17 21:22 ` Tejun Heo
[not found] ` <20151117.162040.1412296298973879057.davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org>
2015-11-17 22:48 ` Jan Engelhardt
[not found] ` <1447789240-29394-1-git-send-email-tj-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
2015-11-17 19:40 ` [PATCH 3/5] cgroup: implement cgroup_get_from_path() and expose cgroup_put() Tejun Heo
2015-11-17 19:40 ` [PATCH 4/5] sock, cgroup: add sock->sk_cgroup Tejun Heo
[not found] ` <1447789240-29394-5-git-send-email-tj-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
2015-11-17 21:25 ` David Miller
[not found] ` <20151117.162554.314531574043190960.davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org>
2015-11-17 21:31 ` Tejun Heo
[not found] ` <20151117213126.GH22864-qYNAdHglDFBN0TnZuCh8vA@public.gmane.org>
2015-11-17 21:46 ` David Miller
2015-11-17 21:48 ` Daniel Borkmann
2015-11-17 22:17 ` Tejun Heo [this message]
2015-11-17 21:46 ` Daniel Borkmann
[not found] ` <564BA036.4000602-FeC+5ew28dpmcu3hnIyYJQ@public.gmane.org>
2015-11-17 22:21 ` Tejun Heo
2015-11-17 19:40 ` [PATCH 5/5] netfilter: implement xt_cgroup2 match Tejun Heo
[not found] ` <1447789240-29394-6-git-send-email-tj-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
2015-11-17 22:56 ` Jan Engelhardt
2015-11-17 19:42 ` [PATCH iptables] libxt_cgroup2: add support for cgroup2 path matching Tejun Heo
2015-11-17 23:02 ` Jan Engelhardt
[not found] ` <alpine.LSU.2.20.1511172356570.13966-Og55a6x16tXH9RFtKMg/Ng@public.gmane.org>
2015-11-17 23:09 ` Tejun Heo
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