From de5cee2c217e5ed606db19ca1433686048303297 Mon Sep 17 00:00:00 2001
From: William Hubbs <williamh@gentoo.org>
Date: Thu, 26 Jan 2012 11:02:00 -0600
Subject: [PATCH] cgroups: make sure /sys/fs/cgroup is a mount point

We need to make sure this directory is a mount point before we add the
control groups.

Reported-by: Andrej Filipcic <andrej.filipcic@ijs.si>
X-Gentoo-Bug: 400903
X-Gentoo-Bug-URL: https://bugs.gentoo.org/show_bug.cgi?id=400903
---
 init.d/sysfs.in | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/init.d/sysfs.in b/init.d/sysfs.in
index 962fcfdb..8ba988a0 100644
--- a/init.d/sysfs.in
+++ b/init.d/sysfs.in
@@ -74,10 +74,8 @@ mount_misc()
 
 mount_cgroups()
 {
-	yesno ${rc_cgroups:-YES} || return 0
-	if [ ! -e /proc/cgroups ]; then
-		return 0
-	fi
+	yesno ${rc_cgroups:-YES} && [ -e /proc/cgroups ] && \
+		mountinfo -q /sys/fs/cgroup || return 0
 
 	local agent="@LIBEXECDIR@/sh/cgroup-release-agent.sh"
 	mkdir /sys/fs/cgroup/openrc