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sched,cgroup: Fix up task_groups list 

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 <efault@gmx.de>
Cc: stable@kernel.org # v3.3+
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1344308413.6846.7.camel@marge.simpson.net
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
hifive-unleashed-5.1
Mike Galbraith 2012-08-07 05:00:13 +02:00 committed by Thomas Gleixner
parent bea6832cc8
commit 35cf4e50b1
2 changed files with 2 additions and 1 deletions
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1
kernel/sched/core.c
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@ -7252,6 +7252,7 @@ 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);

2
kernel/sched/sched.h
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@ -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