From 3cb47b0b0055db2795c11b658036620c4b942948 Mon Sep 17 00:00:00 2001
From: Justin Cormack <justin.cormack@docker.com>
Date: Thu, 22 Dec 2016 00:21:47 +0000
Subject: [PATCH] Fix the cgroup memory hierarchy warning

Needed to make the memory cgroup work properly

fix #373

Signed-off-by: Justin Cormack <justin.cormack@docker.com>
---
 alpine/etc/sysfs.d/01-moby.conf | 1 +
 1 file changed, 1 insertion(+)

diff --git a/alpine/etc/sysfs.d/01-moby.conf b/alpine/etc/sysfs.d/01-moby.conf
index 92aeded2b..fe8a92b9c 100644
--- a/alpine/etc/sysfs.d/01-moby.conf
+++ b/alpine/etc/sysfs.d/01-moby.conf
@@ -1,2 +1,3 @@
+fs/cgroup/memory/memory.use_hierarchy = 1
 kernel/mm/transparent_hugepage/enabled = madvise
 kernel/mm/transparent_hugepage/defrag = madvise