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sched: fix rq->clock warps on frequency changes

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sched: fix rq->clock warps on frequency changes

Fix 2bacec8c31
(sched: touch softlockup watchdog after idling) that reintroduced warps
on frequency changes. touch_softlockup_watchdog() calls __update_rq_clock
that checks rq->clock for warps, so call it after adjusting rq->clock.

Signed-off-by: Guillaume Chazarain <guichaz@yahoo.fr>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Guillaume Chazarain 2008-01-25 21:08:33 +01:00 • committed by Ingo Molnar
parent 4f05b98d54
commit 782daeee3d
1 changed files with 1 additions and 1 deletions
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2
kernel/sched.c
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@ -858,7 +858,6 @@ void sched_clock_idle_wakeup_event(u64 delta_ns)
struct rq *rq = cpu_rq(smp_processor_id()); struct rq *rq = cpu_rq(smp_processor_id());
u64 now = sched_clock(); u64 now = sched_clock();
touch_softlockup_watchdog();
rq->idle_clock += delta_ns; rq->idle_clock += delta_ns;
/* /*
* Override the previous timestamp and ignore all * Override the previous timestamp and ignore all
@ -870,6 +869,7 @@ void sched_clock_idle_wakeup_event(u64 delta_ns)
rq->prev_clock_raw = now; rq->prev_clock_raw = now;
rq->clock += delta_ns; rq->clock += delta_ns;
spin_unlock(&rq->lock); spin_unlock(&rq->lock);
touch_softlockup_watchdog();
} }
EXPORT_SYMBOL_GPL(sched_clock_idle_wakeup_event); EXPORT_SYMBOL_GPL(sched_clock_idle_wakeup_event);