vcs.maemo.org Git - kernel-bfs/blob - kernel-bfs-2.6.28/debian/patches/bfs/tick_sched-set_inidle_unconditionally.patch

   1 --- linux-2.6.28/kernel/time/tick-sched.c       2011-06-20 00:00:22.673390790 +0200
   2 +++ linux-2.6.28.new/kernel/time/tick-sched.c   2011-06-20 12:12:30.374080397 +0200
   3 @@ -231,6 +231,13 @@ void tick_nohz_stop_sched_tick(int inidl
   4         if (!inidle && !ts->inidle)
   5                 goto end;
   6
   7 +       /*
   8 +        * Set ts->inidle unconditionally. Even if the system did not
   9 +        * switch to NOHZ mode the cpu frequency governers rely on the
  10 +        * update of the idle time accounting in tick_nohz_start_idle().
  11 +        */
  12 +       ts->inidle = 1;
  13 +
  14         now = tick_nohz_start_idle(ts);
  15
  16         /*
  17 @@ -248,12 +255,10 @@ void tick_nohz_stop_sched_tick(int inidl
  18         if (unlikely(ts->nohz_mode == NOHZ_MODE_INACTIVE))
  19                 goto end;
  20
  21 -       ts->inidle = 1;
  22 -
  23         if (need_resched())
  24                 goto end;
  25
  26 -       if (unlikely(local_softirq_pending())) {
  27 +       if (unlikely(local_softirq_pending() && cpu_online(cpu))) {
  28                 static int ratelimit;
  29
  30                 if (ratelimit < 10) {