From 3df0bd64cb8d520cb4e65b1ac307d0b9fa4e83c3 Mon Sep 17 00:00:00 2001 From: William Hubbs Date: Tue, 3 Jul 2012 13:49:58 -0500 Subject: [PATCH] cgroups: allow users to turn off creation of controller cgroups This adds a switch to not create the one-cgroup-per-controller setup of cgroups. reported-by: davidweb@klaftenegger.de X-Gentoo-Bug: 423317 X-Gentoo-Bug-URL: https://bugs.gentoo.org/show_bug.cgi?id=423317 --- etc/rc.conf.Linux | 8 ++++++++ init.d/sysfs.in | 3 ++- 2 files changed, 10 insertions(+), 1 deletion(-) diff --git a/etc/rc.conf.Linux b/etc/rc.conf.Linux index ee23bc30..6cc9bef1 100644 --- a/etc/rc.conf.Linux +++ b/etc/rc.conf.Linux @@ -18,3 +18,11 @@ # This is the number of tty's used in most of the rc-scripts (like # consolefont, numlock, etc ...) rc_tty_number=12 + +# If you have cgroups turned on in your kernel, this switch controls +# whether or not a group for each controler is mounted under +# /sys/fs/cgroup. +# Support for process management by cgroups is planned in the future, +# so if you turn this off, be aware that you may not be able to use that +# feature. +#rc_controller_cgroups="YES" diff --git a/init.d/sysfs.in b/init.d/sysfs.in index e8567756..5bc5c717 100644 --- a/init.d/sysfs.in +++ b/init.d/sysfs.in @@ -74,7 +74,6 @@ mount_misc() mount_cgroups() { - yesno ${rc_cgroups:-YES} && [ -e /proc/cgroups ] && \ mountinfo -q /sys/fs/cgroup || return 0 local agent="@LIBEXECDIR@/sh/cgroup-release-agent.sh" @@ -83,6 +82,8 @@ mount_cgroups() -o none,nodev,noexec,nosuid,name=openrc,release_agent="$agent" \ openrc /sys/fs/cgroup/openrc echo 1 > /sys/fs/cgroup/openrc/notify_on_release + + yesno ${rc_controller_cgroups:-YES} && [ -e /proc/cgroups ] || return 0 while read name hier groups enabled rest; do case "${enabled}" in 1) mkdir /sys/fs/cgroup/${name}