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SubjectRe: A Plumber’ s Wish List for Linux
On Fri, Oct 07, 2011 at 01:17:02AM +0200, Kay Sievers wrote:

[..]
> * fork throttling mechanism as basic cgroup functionality that is
> available in all hierarchies independent of the controllers used:
> This is important to implement race-free killing of all members of a
> cgroup, so that cgroup member processes cannot fork faster then a cgroup
> supervisor process could kill them. This needs to be recursive, so that
> not only a cgroup but all its subgroups are covered as well.

Above should make sense for "freezer" controller too. That will allow us
reliable dynamic migration of tasks in a cgroup by first freezing them,
then change the cgroup and then unfreeze.

Thanks
Vivek


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