From: Mike Galbraith Date: Tue, 7 Aug 2012 03:00:13 +0000 (+0200) Subject: sched,cgroup: Fix up task_groups list X-Git-Tag: v3.4.11~38 X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=0f342b96d471d48fb151ae9073e58e0510e0a58f;p=karo-tx-linux.git sched,cgroup: Fix up task_groups list commit 35cf4e50b16331def6cfcbee11e49270b6db07f5 upstream. With multiple instances of task_groups, for_each_rt_rq() is a noop, no task groups having been added to the rt.c list instance. This renders __enable/disable_runtime() and print_rt_stats() noop, the user (non) visible effect being that rt task groups are missing in /proc/sched_debug. Signed-off-by: Mike Galbraith Signed-off-by: Peter Zijlstra Link: http://lkml.kernel.org/r/1344308413.6846.7.camel@marge.simpson.net Signed-off-by: Thomas Gleixner Signed-off-by: Greg Kroah-Hartman --- diff --git a/kernel/sched/core.c b/kernel/sched/core.c index 817bf7018834..f70b975c85af 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -7011,6 +7011,7 @@ int in_sched_functions(unsigned long addr) #ifdef CONFIG_CGROUP_SCHED struct task_group root_task_group; +LIST_HEAD(task_groups); #endif DECLARE_PER_CPU(cpumask_var_t, load_balance_tmpmask); diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h index 116ced06ecc0..d9637f4c43de 100644 --- a/kernel/sched/sched.h +++ b/kernel/sched/sched.h @@ -80,7 +80,7 @@ extern struct mutex sched_domains_mutex; struct cfs_rq; struct rt_rq; -static LIST_HEAD(task_groups); +extern struct list_head task_groups; struct cfs_bandwidth { #ifdef CONFIG_CFS_BANDWIDTH