Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...

* 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (49 commits)
  stop_machine: Move local variable closer to the usage site in cpu_stop_cpu_callback()
  sched, wait: Use wrapper functions
  sched: Remove a stale comment
  ondemand: Make the iowait-is-busy time a sysfs tunable
  ondemand: Solve a big performance issue by counting IOWAIT time as busy
  sched: Intoduce get_cpu_iowait_time_us()
  sched: Eliminate the ts->idle_lastupdate field
  sched: Fold updating of the last_update_time_info into update_ts_time_stats()
  sched: Update the idle statistics in get_cpu_idle_time_us()
  sched: Introduce a function to update the idle statistics
  sched: Add a comment to get_cpu_idle_time_us()
  cpu_stop: add dummy implementation for UP
  sched: Remove rq argument to the tracepoints
  rcu: need barrier() in UP synchronize_sched_expedited()
  sched: correctly place paranioa memory barriers in synchronize_sched_expedited()
  sched: kill paranoia check in synchronize_sched_expedited()
  sched: replace migration_thread with cpu_stop
  stop_machine: reimplement using cpu_stop
  cpu_stop: implement stop_cpu[s]()
  sched: Fix select_idle_sibling() logic in select_task_rq_fair()
  ...

diff --cc include/linux/rcutiny.h
Simple merge

diff --cc include/linux/rcutree.h
index 4828205,24e467e..c0ed1c0
--- 1/include/linux/rcutree.h
--- 2/include/linux/rcutree.h
+++ b/include/linux/rcutree.h
@@@ -34,9 -34,7 +34,8 @@@ struct notifier_block
  
  extern void rcu_sched_qs(int cpu);
  extern void rcu_bh_qs(int cpu);
 +extern void rcu_note_context_switch(int cpu);
  extern int rcu_needs_cpu(int cpu);
- extern int rcu_expedited_torture_stats(char *page);
  
  #ifdef CONFIG_TREE_PREEMPT_RCU
  

diff --cc include/linux/sched.h
Simple merge

diff --cc kernel/cgroup.c
Simple merge

diff --cc kernel/module.c
Simple merge

diff --cc kernel/rcutorture.c
Simple merge

diff --cc kernel/sched.c
Simple merge

diff --cc kernel/sched_debug.c
Simple merge