sched: Consolidate the name of root_task_group and init_task_group

root_task_group is the leftover of USER_SCHED, now it's always
same to init_task_group.
But as Mike suggested, root_task_group is maybe the suitable name
to keep for a tree.
So in this patch:
  init_task_group      --> root_task_group
  init_task_group_load --> root_task_group_load
  INIT_TASK_GROUP_LOAD --> ROOT_TASK_GROUP_LOAD

Suggested-by: Mike Galbraith <efault@gmx.de>
Signed-off-by: Yong Zhang <yong.zhang0@gmail.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <20110107071736.GA32635@windriver.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 3 insertions, 3 deletions

diff --git a/kernel/sched_autogroup.c b/kernel/sched_autogroup.c
index c80fedcd476b..e011e53433a6 100644
--- a/kernel/sched_autogroup.c
+++ b/kernel/sched_autogroup.c
@@ -11,8 +11,8 @@ static atomic_t autogroup_seq_nr;
 
 static void autogroup_init(struct task_struct *init_task)
 {
-        autogroup_default.tg = &init_task_group;
-        init_task_group.autogroup = &autogroup_default;
+        autogroup_default.tg = &root_task_group;
+        root_task_group.autogroup = &autogroup_default;
         kref_init(&autogroup_default.kref);
         init_rwsem(&autogroup_default.lock);
         init_task->signal->autogroup = &autogroup_default;
@@ -63,7 +63,7 @@ static inline struct autogroup *autogroup_create(void)
         if (!ag)
                 goto out_fail;
 
-        tg = sched_create_group(&init_task_group);
+        tg = sched_create_group(&root_task_group);
 
         if (IS_ERR(tg))
                 goto out_free;