List groupoom in cgroup features list (exported via /sys/kernel/cgroup/features), which can be used by a userspace apps (most likely, systemd) to get an idea which cgroup features are supported by kernel.
Signed-off-by: Roman Gushchin <[email protected]> Cc: Tejun Heo <[email protected]> Cc: Michal Hocko <[email protected]> Cc: Vladimir Davydov <[email protected]> Cc: Johannes Weiner <[email protected]> Cc: Tetsuo Handa <[email protected]> Cc: David Rientjes <[email protected]> Cc: Andrew Morton <[email protected]> Cc: [email protected] Cc: [email protected] Cc: [email protected] Cc: [email protected] Cc: [email protected] --- kernel/cgroup/cgroup.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/kernel/cgroup/cgroup.c b/kernel/cgroup/cgroup.c index 7338e12979e1..693443282fc1 100644 --- a/kernel/cgroup/cgroup.c +++ b/kernel/cgroup/cgroup.c @@ -5922,7 +5922,8 @@ static struct kobj_attribute cgroup_delegate_attr = __ATTR_RO(delegate); static ssize_t features_show(struct kobject *kobj, struct kobj_attribute *attr, char *buf) { - return snprintf(buf, PAGE_SIZE, "nsdelegate\n"); + return snprintf(buf, PAGE_SIZE, "nsdelegate\n" + "groupoom\n"); } static struct kobj_attribute cgroup_features_attr = __ATTR_RO(features); -- 2.14.3
