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Message-ID: <4DAD6D22.7000002@parallels.com> Date: Tue, 19 Apr 2011 15:08:18 +0400 From: Konstantin Khlebnikov <khlebnikov@...allels.com> To: Paul Menage <menage@...gle.com> CC: "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org> Subject: Re: [PATCH] cpuset: allow empty cpu/node masks Paul Menage wrote: > On Tue, Apr 19, 2011 at 12:07 PM, Konstantin Khlebnikov > <khlebnikov@...nvz.org> wrote: >> >> This aimed to fix attaching tasks to the newly created cgroups in hierarchies with >> cpuset subsystem. Cpuset always require initializing cpuset.cpus and cpuset.mems, >> because they are empty by default, this fact block task attaching with -ENOSPC. > > You can set the cgroup.clone_children to 1 to get the parent masks > automatically copied into the child. So I don't think this patch is > needed. cgroup.clone_children does not work if ns_cgroup is mounted, but it is ok if ns_cgroup is alredy scheduled to remove soon. However, I still think that all cgroups must have reasonable default state. Is cgroup.clone_children=1 planned to be default? So, I just want to make cgroup worked out of the box: mount -t cgroup cgroup /cgroup mkdir /cgroup/foo echo $$ > /cgroup/foo/tasks Initialization before tasks attaching should be optional. > > Paul -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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