Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

* 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (30 commits)
  sched: Change wait_for_completion_*_timeout() to return a signed long
  sched, autogroup: Fix reference leak
  sched, autogroup: Fix potential access to freed memory
  sched: Remove redundant CONFIG_CGROUP_SCHED ifdef
  sched: Fix interactivity bug by charging unaccounted run-time on entity re-weight
  sched: Move periodic share updates to entity_tick()
  printk: Use this_cpu_{read|write} api on printk_pending
  sched: Make pushable_tasks CONFIG_SMP dependant
  sched: Add 'autogroup' scheduling feature: automated per session task groups
  sched: Fix unregister_fair_sched_group()
  sched: Remove unused argument dest_cpu to migrate_task()
  mutexes, sched: Introduce arch_mutex_cpu_relax()
  sched: Add some clock info to sched_debug
  cpu: Remove incorrect BUG_ON
  cpu: Remove unused variable
  sched: Fix UP build breakage
  sched: Make task dump print all 15 chars of proc comm
  sched: Update tg->shares after cpu.shares write
  sched: Allow update_cfs_load() to update global load
  sched: Implement demand based update_cfs_load()
  ...

1 files changed, 13 insertions, 0 deletions

diff --git a/init/Kconfig b/init/Kconfig
index 526ec1c7456..8dfd094e687 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -794,6 +794,19 @@ config NET_NS
 
 endif # NAMESPACES
 
+config SCHED_AUTOGROUP
+        bool "Automatic process group scheduling"
+        select EVENTFD
+        select CGROUPS
+        select CGROUP_SCHED
+        select FAIR_GROUP_SCHED
+        help
+          This option optimizes the scheduler for common desktop workloads by
+          automatically creating and populating task groups.  This separation
+          of workloads isolates aggressive CPU burners (like build jobs) from
+          desktop applications.  Task group autogeneration is currently based
+          upon task session.
+
 config MM_OWNER
         bool