From: Lennart Poettering <lennart-mdGvqq1h2p+GdvJs77BJ7Q@public.gmane.org>
To: Tejun Heo <tj-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
Cc: Li Zefan <lizefan-hv44wF8Li93QT0dZR+AlfA@public.gmane.org>,
containers-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org,
cgroups-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
"Daniel P. Berrange"
<berrange-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>,
Kay Sievers <kay.sievers-tD+1rO4QERM@public.gmane.org>,
Michal Hocko <mhocko-AlSwsSmVLrQ@public.gmane.org>,
Johannes Weiner <hannes-druUgvl0LCNAfugRpC6u6w@public.gmane.org>,
Aristeu Rozanski <aris-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
Subject: Re: [PATCH cgroup/for-3.11] cgroup: disallow rename(2) if sane_behavior
Date: Mon, 17 Jun 2013 18:33:53 +0200 [thread overview]
Message-ID: <20130617163353.GD22846@tango.0pointer.de> (raw)
In-Reply-To: <20130616221556.GC28587-Gd/HAXX7CRxy/B6EtB590w@public.gmane.org>
On Sun, 16.06.13 15:15, Tejun Heo (tj-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org) wrote:
> We want composability regardless of migration, but as for migration
> itself, an alternative could be having an atomic "move everything in
> cgroup A to cgroup B" interface, so that the admin (whether human or
> base system software) can set up a new cgroup and then move the member
> tasks atomically.
I am not sure this would cut it for containers. For containers we'll
usually have a fully populated cgroup subtree, and if we want to migrate
that somewhere else, then we'd something that works recursively and
allows us to not tell the container at all about the move (i.e. the
namespace of cgroupfs the container sees should ideall stay entirely
unaltered by the move).
Lennart
--
Lennart Poettering - Red Hat, Inc.
next prev parent reply other threads:[~2013-06-17 16:33 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-06-14 3:47 [PATCH cgroup/for-3.11] cgroup: disallow rename(2) if sane_behavior Tejun Heo
[not found] ` <20130614034717.GA31533-Gd/HAXX7CRxy/B6EtB590w@public.gmane.org>
2013-06-14 7:44 ` Li Zefan
2013-06-14 18:18 ` [PATCH v2 " Tejun Heo
[not found] ` <20130614181822.GC6593-9pTldWuhBndy/B6EtB590w@public.gmane.org>
2013-06-18 9:11 ` Li Zefan
2013-06-18 15:16 ` Tejun Heo
2013-06-16 7:16 ` [PATCH " Lennart Poettering
[not found] ` <20130616071648.GA1978-kS5D54t9nk0aINubkmmoJbNAH6kLmebB@public.gmane.org>
2013-06-16 22:15 ` Tejun Heo
[not found] ` <20130616221556.GC28587-Gd/HAXX7CRxy/B6EtB590w@public.gmane.org>
2013-06-17 13:00 ` Aristeu Rozanski
[not found] ` <20130617130029.GB3212-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2013-06-17 17:06 ` Tejun Heo
2013-06-17 17:06 ` Tejun Heo
2013-06-17 13:51 ` Michal Hocko
[not found] ` <20130617135122.GD5018-2MMpYkNvuYDjFM9bn6wA6Q@public.gmane.org>
2013-06-17 16:51 ` Tejun Heo
[not found] ` <20130617165129.GA32663-9pTldWuhBndy/B6EtB590w@public.gmane.org>
2013-06-21 8:35 ` Michal Hocko
2013-06-21 8:35 ` Michal Hocko
2013-06-17 13:51 ` Michal Hocko
2013-06-17 16:33 ` Lennart Poettering
2013-06-17 16:33 ` Lennart Poettering [this message]
[not found] ` <20130617163353.GD22846-kS5D54t9nk0aINubkmmoJbNAH6kLmebB@public.gmane.org>
2013-06-17 16:53 ` Tejun Heo
2013-06-16 7:16 ` Lennart Poettering
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