sched: fix ideal_runtime calculations for reniced tasks
commit1169783085adb9ac969d21103a6885e8435f7ed3
authorPeter Zijlstra <a.p.zijlstra@chello.nl>
Wed, 5 Sep 2007 12:32:49 +0000 (5 14:32 +0200)
committerIngo Molnar <mingo@elte.hu>
Wed, 5 Sep 2007 12:32:49 +0000 (5 14:32 +0200)
tree8d5313ef18ba821436aa838cb6f03f065049ef21
parent4a55b45036a677fac43fe81ddf7fdcd007aaaee7
sched: fix ideal_runtime calculations for reniced tasks

fix ideal_runtime:

  - do not scale it using niced_granularity()
    it is against sum_exec_delta, so its wall-time, not fair-time.

  - move the whole check into __check_preempt_curr_fair()
    so that wakeup preemption can also benefit from the new logic.

this also results in code size reduction:

   text    data     bss     dec     hex filename
  13391     228    1204   14823    39e7 sched.o.before
  13369     228    1204   14801    39d1 sched.o.after

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
kernel/sched_fair.c