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 <g...@fb.com>
Cc: Tejun Heo <t...@kernel.org>
Cc: Michal Hocko <mho...@kernel.org>
Cc: Vladimir Davydov <vdavydov....@gmail.com>
Cc: Johannes Weiner <han...@cmpxchg.org>
Cc: Tetsuo Handa <penguin-ker...@i-love.sakura.ne.jp>
Cc: David Rientjes <rient...@google.com>
Cc: Andrew Morton <a...@linux-foundation.org>
Cc: kernel-t...@fb.com
Cc: cgro...@vger.kernel.org
Cc: linux-doc@vger.kernel.org
Cc: linux-ker...@vger.kernel.org
Cc: linux...@kvack.org
---
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
--
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