diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2007-07-21 11:37:34 (GMT) |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-07-22 00:49:15 (GMT) |
| commit | 18de5bc4c1f1f1fa5e14f354a7603bd6e9d4e3b6 (patch) | |
| tree | cb0ff399fb3f368adecf213318e32a499ada6ff9 /kernel/time/tick-common.c | |
| parent | 93da56efcf8c6a111f0349f6b7651172d4745ca0 (diff) | |
| download | linux-18de5bc4c1f1f1fa5e14f354a7603bd6e9d4e3b6.tar.xz | |
clockevents: fix resume logic
We need to make sure, that the clockevent devices are resumed, before
the tick is resumed. The current resume logic does not guarantee this.
Add CLOCK_EVT_MODE_RESUME and call the set mode functions of the clock
event devices before resuming the tick / oneshot functionality.
Fixup the existing users.
Thanks to Nigel Cunningham for tracking down a long standing thinko,
which affected the jinxed VAIO.
[akpm@linux-foundation.org: xen build fix]
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: john stultz <johnstul@us.ibm.com>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel/time/tick-common.c')
| -rw-r--r-- | kernel/time/tick-common.c | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/kernel/time/tick-common.c b/kernel/time/tick-common.c index a96ec9ab..77a21ab 100644 --- a/kernel/time/tick-common.c +++ b/kernel/time/tick-common.c @@ -318,12 +318,17 @@ static void tick_resume(void) { struct tick_device *td = &__get_cpu_var(tick_cpu_device); unsigned long flags; + int broadcast = tick_resume_broadcast(); spin_lock_irqsave(&tick_device_lock, flags); - if (td->mode == TICKDEV_MODE_PERIODIC) - tick_setup_periodic(td->evtdev, 0); - else - tick_resume_oneshot(); + clockevents_set_mode(td->evtdev, CLOCK_EVT_MODE_RESUME); + + if (!broadcast) { + if (td->mode == TICKDEV_MODE_PERIODIC) + tick_setup_periodic(td->evtdev, 0); + else + tick_resume_oneshot(); + } spin_unlock_irqrestore(&tick_device_lock, flags); } @@ -360,8 +365,7 @@ static int tick_notify(struct notifier_block *nb, unsigned long reason, break; case CLOCK_EVT_NOTIFY_RESUME: - if (!tick_resume_broadcast()) - tick_resume(); + tick_resume(); break; default: |