On 06/20/2018 10:15 PM, Peter Zijlstra wrote: > On Mon, Jun 18, 2018 at 12:14:04PM +0800, Waiman Long wrote: >> diff --git a/Documentation/admin-guide/cgroup-v2.rst b/Documentation/admin-guide/cgroup-v2.rst >> index 5ee5e77..6ef3516 100644 >> --- a/Documentation/admin-guide/cgroup-v2.rst >> +++ b/Documentation/admin-guide/cgroup-v2.rst >> @@ -1626,6 +1626,13 @@ Cpuset Interface Files >> 2) No CPU that has been distributed to child scheduling domain >> roots is deleted. >> >> + When all the CPUs allocated to a scheduling domain are offlined, >> + that scheduling domain will be temporaily gone and all the >> + tasks in that scheduling domain will migrate to another one that >> + belongs to the parent of the scheduling domain root. When any >> + of those offlined CPUs is onlined again, a new scheduling domain >> + will be re-created and the tasks will be migrated back. >> + > You should mention that this is a destructive operation. If any of the > tasks had an affinity smaller than the original cgroup, that will be > gone. Thanks for the information. Will update the documentation to mention that. Cheers, Longman -- To unsubscribe from this list: send the line "unsubscribe cgroups" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
