[tip:sched/core] sched, trivial: Initialize root cgroup's sibling list

[tip-bot for Glauber Costa]

Commit-ID:  f4d6f6c2649c2c47261db4dcc3110d6f22202ea2
Gitweb:     http://git.kernel.org/tip/f4d6f6c2649c2c47261db4dcc3110d6f22202ea2
Author:     Glauber Costa <glommer@xxxxxxxxxxxxx>
AuthorDate: Tue, 1 Nov 2011 19:19:07 -0200
Committer:  Ingo Molnar <mingo@xxxxxxx>
CommitDate: Wed, 16 Nov 2011 08:48:22 +0100

sched, trivial: Initialize root cgroup's sibling list

Even though there are no siblings, the list should be
initialized to not contain bogus values.

Signed-off-by: Glauber Costa <glommer@xxxxxxxxxxxxx>
Acked-by: Paul Menage <paul@xxxxxxxxxxxxxx>
Acked-by: Paul Turner <pjt@xxxxxxxxxx>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
Link: http://lkml.kernel.org/r/1320182360-20043-2-git-send-email-glommer@xxxxxxxxxxxxx
Signed-off-by: Ingo Molnar <mingo@xxxxxxx>
---
 kernel/sched.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/kernel/sched.c b/kernel/sched.c
index d9d79a4..0df6986 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -8275,6 +8275,7 @@ void __init sched_init(void)
 #ifdef CONFIG_CGROUP_SCHED
 	list_add(&root_task_group.list, &task_groups);
 	INIT_LIST_HEAD(&root_task_group.children);
+	INIT_LIST_HEAD(&root_task_group.siblings);
 	autogroup_init(&init_task);
 #endif /* CONFIG_CGROUP_SCHED */
 
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