From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pg0-f70.google.com (mail-pg0-f70.google.com [74.125.83.70]) by kanga.kvack.org (Postfix) with ESMTP id A4AB96B0261 for ; Thu, 30 Nov 2017 10:29:30 -0500 (EST) Received: by mail-pg0-f70.google.com with SMTP id y2so4438404pgv.8 for ; Thu, 30 Nov 2017 07:29:30 -0800 (PST) Received: from mx0a-00082601.pphosted.com (mx0b-00082601.pphosted.com. [67.231.153.30]) by mx.google.com with ESMTPS id i11si3415232pfi.187.2017.11.30.07.29.28 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 30 Nov 2017 07:29:29 -0800 (PST) From: Roman Gushchin Subject: [PATCH v13 7/7] cgroup: list groupoom in cgroup features Date: Thu, 30 Nov 2017 15:28:24 +0000 Message-ID: <20171130152824.1591-8-guro@fb.com> In-Reply-To: <20171130152824.1591-1-guro@fb.com> References: <20171130152824.1591-1-guro@fb.com> MIME-Version: 1.0 Content-Type: text/plain Sender: owner-linux-mm@kvack.org List-ID: To: linux-mm@vger.kernel.org Cc: Roman Gushchin , Tejun Heo , Michal Hocko , Vladimir Davydov , Johannes Weiner , Tetsuo Handa , David Rientjes , Andrew Morton , kernel-team@fb.com, cgroups@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org 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 Cc: Tejun Heo Cc: Michal Hocko Cc: Vladimir Davydov Cc: Johannes Weiner Cc: Tetsuo Handa Cc: David Rientjes Cc: Andrew Morton Cc: kernel-team@fb.com Cc: cgroups@vger.kernel.org Cc: linux-doc@vger.kernel.org Cc: linux-kernel@vger.kernel.org Cc: linux-mm@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 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org