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

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* 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  sched: refactor wait_for_completion_timeout()
  sched: fix wait_for_completion_timeout() spurious failure under heavy load
  sched: rt: dont stop the period timer when there are tasks wanting to run
This commit is contained in:
Linus Torvalds 2008-06-23 12:48:50 -07:00
commit 0e053738b5
2 changed files with 8 additions and 9 deletions
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14
kernel/sched.c
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@ -4398,22 +4398,20 @@ do_wait_for_common(struct completion *x, long timeout, int state)
signal_pending(current)) ||
(state == TASK_KILLABLE &&
fatal_signal_pending(current))) {
__remove_wait_queue(&x->wait, &wait);
return -ERESTARTSYS;
timeout = -ERESTARTSYS;
break;
}
__set_current_state(state);
spin_unlock_irq(&x->wait.lock);
timeout = schedule_timeout(timeout);
spin_lock_irq(&x->wait.lock);
if (!timeout) {
__remove_wait_queue(&x->wait, &wait);
return timeout;
}
} while (!x->done);
} while (!x->done && timeout);
__remove_wait_queue(&x->wait, &wait);
if (!x->done)
return timeout;
}
x->done--;
return timeout;
return timeout ?: 1;
}
static long __sched

3
kernel/sched_rt.c
View File

@ -250,7 +250,8 @@ static int do_sched_rt_period_timer(struct rt_bandwidth *rt_b, int overrun)
if (rt_rq->rt_time || rt_rq->rt_nr_running)
idle = 0;
spin_unlock(&rt_rq->rt_runtime_lock);
}
} else if (rt_rq->rt_nr_running)
idle = 0;
if (enqueue)
sched_rt_rq_enqueue(rt_rq);