The patch titled
Subject: cgroup: list groupoom in cgroup features
has been added to the -mm tree. Its filename is
cgroup-list-groupoom-in-cgroup-features.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/cgroup-list-groupoom-in-cgroup-features.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/cgroup-list-groupoom-in-cgroup-features.patch
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------------------------------------------------------
From: Roman Gushchin <guro@xxxxxx>
Subject: cgroup: list groupoom in cgroup features
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.
Link: http://lkml.kernel.org/r/20171130152824.1591-8-guro@xxxxxx
Signed-off-by: Roman Gushchin <guro@xxxxxx>
Cc: Tejun Heo <tj@xxxxxxxxxx>
Cc: Michal Hocko <mhocko@xxxxxxxxxx>
Cc: Vladimir Davydov <vdavydov.dev@xxxxxxxxx>
Cc: Johannes Weiner <hannes@xxxxxxxxxxx>
Cc: Tetsuo Handa <penguin-kernel@xxxxxxxxxxxxxxxxxxx>
Cc: David Rientjes <rientjes@xxxxxxxxxx>
Cc: Michal Hocko <mhocko@xxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
kernel/cgroup/cgroup.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff -puN kernel/cgroup/cgroup.c~cgroup-list-groupoom-in-cgroup-features kernel/cgroup/cgroup.c
--- a/kernel/cgroup/cgroup.c~cgroup-list-groupoom-in-cgroup-features
+++ a/kernel/cgroup/cgroup.c
@@ -5922,7 +5922,8 @@ static struct kobj_attribute cgroup_dele
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);
_
Patches currently in -mm which might be from guro@xxxxxx are
mm-show-total-hugetlb-memory-consumption-in-proc-meminfo.patch
mm-oom-refactor-the-oom_kill_process-function.patch
mm-implement-mem_cgroup_scan_tasks-for-the-root-memory-cgroup.patch
mm-oom-cgroup-aware-oom-killer.patch
mm-oom-introduce-memoryoom_group.patch
mm-oom-add-cgroup-v2-mount-option-for-cgroup-aware-oom-killer.patch
mm-oom-docs-describe-the-cgroup-aware-oom-killer.patch
cgroup-list-groupoom-in-cgroup-features.patch
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