cgroup: Add mount flag to enable cpuset to use v2 behavior in v1 cgroup
A new mount option "cpuset_v2_mode" is added to the v1 cgroupfs
filesystem to enable cpuset controller to use v2 behavior in a v1
cgroup. This mount option applies only to cpuset controller and have
no effect on other controllers.
Signed-off-by: Waiman Long <longman@redhat.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
diff --git a/include/linux/cgroup-defs.h b/include/linux/cgroup-defs.h
index 59e4ad9..ade4a78 100644
--- a/include/linux/cgroup-defs.h
+++ b/include/linux/cgroup-defs.h
@@ -74,6 +74,11 @@ enum {
* aren't writeable from inside the namespace.
*/
CGRP_ROOT_NS_DELEGATE = (1 << 3),
+
+ /*
+ * Enable cpuset controller in v1 cgroup to use v2 behavior.
+ */
+ CGRP_ROOT_CPUSET_V2_MODE = (1 << 4),
};
/* cftype->flags */