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    Subject[patch] CFS scheduler, -v20, for v2.6.22.5, v2.6.21.7, v2.6.20.16

    By popular demand, here is release -v20 of the CFS scheduler. It is a
    full backport of the latest & greatest v2.6.23-rc3 CFS code to
    v2.6.22.5, v2.6.21.7 and v2.6.20.16. The patches can be downloaded from
    the usual place:

    http://people.redhat.com/mingo/cfs-scheduler/

    Changes since -v19: there have been lots of small regression fixes,
    speedups, debug enhancements and tidy-ups - many of which can be
    user-visible.

    See the detailed shortlog below - there are nearly 100 changes - they do
    add up to a significant total linecount change. There was no crash bug
    or hang bug found in the CFS code since v19 was released. (in fact the
    last crash/hang bug in CFS was found and fixed in v7, more than 3 months
    ago, and even that crash only happened in an uncommon sw-suspend setup,
    not during normal use. So CFS has turned out to be a pretty robust
    codebase.)

    Nevertheless, if you had any problems (performance or behavioral) with
    v19 it's worth checking v20 out - and if v19 worked great for you it's
    worth checking out that v20 still works great =B-)

    Also, the backported CFS scheduler enables people to test suspected
    scheduler regressions on older codebases too, to filter out the effects
    of other changes.

    v20 has been build and boot tested on both 32-bit and 64-bit x86, ontop
    of all 3 backport kernel bases. As usual, any sort of feedback,
    bugreport, fix and suggestion is more than welcome!

    Ingo

    ------------------->
    Adrian Bunk (1):
    sched: make global code static

    Al Viro (1):
    take sched_debug.c out of nasal demon territory

    Alexey Dobriyan (2):
    Fix leaks on /proc/{*/sched,sched_debug,timer_list,timer_stats}
    sched: remove binary sysctls from kernel.sched_domain

    Avi Kivity (1):
    sched: arch preempt notifier mechanism

    Ingo Molnar (68):
    sched: make cpu_clock() not use the rq clock
    sched: remove cache_hot_time
    sched: calc_delta_mine(): use fixed limit
    sched: uninline calc_delta_mine()
    sched: uninline inc/dec_nr_running()
    sched: ->task_new cleanup
    sched: move load-calculation functions
    sched: add schedstat_set() API
    sched: use schedstat_set() API
    sched: reduce debug code
    sched: batch sleeper bonus
    sched: reorder update_cpu_load(rq) with the ->task_tick() call
    sched: uninline rq_clock()
    sched: schedule() speedup
    sched: clean up delta_mine
    sched: delta_exec accounting fix
    sched: add [__]update_rq_clock(rq)
    sched: eliminate rq_clock() use
    sched: remove rq_clock()
    sched: eliminate __rq_clock() use
    sched: remove __rq_clock()
    sched: remove 'now' use from assignments
    sched: remove the 'u64 now' parameter from print_cfs_rq()
    sched: remove the 'u64 now' parameter from update_curr()
    sched: remove the 'u64 now' parameter from update_stats_wait_start()
    sched: remove the 'u64 now' parameter from update_stats_enqueue()
    sched: remove the 'u64 now' parameter from __update_stats_wait_end()
    sched: remove the 'u64 now' parameter from update_stats_wait_end()
    sched: remove the 'u64 now' parameter from update_stats_curr_start()
    sched: remove the 'u64 now' parameter from update_stats_dequeue()
    sched: remove the 'u64 now' parameter from update_stats_curr_end()
    sched: remove the 'u64 now' parameter from __enqueue_sleeper()
    sched: remove the 'u64 now' parameter from enqueue_sleeper()
    sched: remove the 'u64 now' parameter from enqueue_entity()
    sched: remove the 'u64 now' parameter from dequeue_entity()
    sched: remove the 'u64 now' parameter from set_next_entity()
    sched: remove the 'u64 now' parameter from pick_next_entity()
    sched: remove the 'u64 now' parameter from put_prev_entity()
    sched: remove the 'u64 now' parameter from update_curr_rt()
    sched: remove the 'u64 now' parameter from ->enqueue_task()
    sched: remove the 'u64 now' parameter from ->dequeue_task()
    sched: remove the 'u64 now' parameter from ->pick_next_task()
    sched: remove the 'u64 now' parameter from pick_next_task()
    sched: remove the 'u64 now' parameter from ->put_prev_task()
    sched: remove the 'u64 now' parameter from ->task_new()
    sched: remove the 'u64 now' parameter from update_curr_load()
    sched: remove the 'u64 now' parameter from inc_load()
    sched: remove the 'u64 now' parameter from dec_load()
    sched: remove the 'u64 now' parameter from inc_nr_running()
    sched: remove the 'u64 now' parameter from dec_nr_running()
    sched: remove the 'u64 now' parameter from enqueue_task()
    sched: remove the 'u64 now' parameter from dequeue_task()
    sched: remove the 'u64 now' parameter from deactivate_task()
    sched: remove the 'u64 now' local variables
    sched debug: remove the 'u64 now' parameter from print_task()/_rq()
    sched: move the __update_rq_clock() call to scheduler_tick()
    sched: remove __update_rq_clock() call from entity_tick()
    sched: clean up set_curr_task_fair()
    sched: optimize activate_task()
    sched: optimize update_rq_clock() calls in the load-balancer
    sched: make the multiplication table more accurate
    sched: round a bit better
    sched: fix update_stats_enqueue() reniced codepath
    sched: refine negative nice level granularity
    sched: improve rq-clock overflow logic
    sched: fix typo in the FAIR_GROUP_SCHED branch
    sched debug: dont print kernel address in /proc/sched_debug
    sched: fix sleeper bonus

    Josh Triplett (2):
    sched: mark sysrq_sched_debug_show() static
    sched: mark print_cfs_stats static

    Nick Piggin (1):
    sched: debug feature - make the sched-domains tree runtime-tweakable

    Oleg Nesterov (1):
    sched: run_rebalance_domains: s/SCHED_IDLE/CPU_IDLE/

    Peter Williams (3):
    sched: tidy up left over smpnice code
    sched: simplify move_tasks()
    sched: fix bug in balance_tasks()

    Randy Dunlap (1):
    sched: fix kernel-doc warnings

    Satoru Takeuchi (1):
    sched: remove unused rq->load_balance_class

    Ulrich Drepper (1):
    sched: clean up sched_getaffinity()
    -
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