Messages in this thread | | | Date | Thu, 31 Aug 2017 06:50:22 -0700 | From | Tejun Heo <> | Subject | Re: [lxc-devel] [RFC PATCH] cgroup, cpuset: add cpuset.remap_cpus |
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On Thu, Aug 31, 2017 at 11:41:47AM +0200, Christian Brauner wrote: > On Wed, Aug 30, 2017 at 05:41:31PM -0700, Tejun Heo wrote: > > Hello, > > > > On Wed, Aug 30, 2017 at 03:27:55PM +0200, Christian Brauner wrote: > > > The following patch was sent a while back by Wolfgang Bumiller to remap cpusets > > > for a whole subtree in a cgroup v1 cpuset hierarchy. The fact that currently > > > this is not possible in a non-racy why is a pretty big limitation. This is > > > especially true for nested containers. Where the nested containers often create > > > additional subcgroups in the cpuset controller at will. The fact that you can't > > > *easily* and in a non-racy way tighten the restriction on them after having > > > created the parent container's cpuset cgroup seems really troubling. > > > > There was a recent patch to enable v2 behavior on v1, which feels like > > the better approach at this point. I'm not sure about adding a whole > > new interface for this. > > Cool. If it can be done easier and less invasive I'm all for it. Did the patch > already make it into your branch and - only if you happen to have the reference > flying around - could you point me to it.
https://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup.git/commit/?h=for-4.14&id=b8d1b8ee93df8ffbabbeadd65d39853cfad6d698
Thanks.
-- tejun
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