diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2007-07-21 04:37:34 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-07-21 17:49:15 -0700 |
| commit | 18de5bc4c1f1f1fa5e14f354a7603bd6e9d4e3b6 (patch) | |
| tree | cb0ff399fb3f368adecf213318e32a499ada6ff9 /kernel/time/tick-broadcast.c | |
| parent | 93da56efcf8c6a111f0349f6b7651172d4745ca0 (diff) | |
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-broadcast.c')
| -rw-r--r-- | kernel/time/tick-broadcast.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/kernel/time/tick-broadcast.c b/kernel/time/tick-broadcast.c index 8001d37071f..8339af229cb 100644 --- a/kernel/time/tick-broadcast.c +++ b/kernel/time/tick-broadcast.c @@ -49,7 +49,7 @@ cpumask_t *tick_get_broadcast_mask(void) */ static void tick_broadcast_start_periodic(struct clock_event_device *bc) { - if (bc && bc->mode == CLOCK_EVT_MODE_SHUTDOWN) + if (bc) tick_setup_periodic(bc, 1); } @@ -299,7 +299,7 @@ void tick_suspend_broadcast(void) spin_lock_irqsave(&tick_broadcast_lock, flags); bc = tick_broadcast_device.evtdev; - if (bc && tick_broadcast_device.mode == TICKDEV_MODE_PERIODIC) + if (bc) clockevents_set_mode(bc, CLOCK_EVT_MODE_SHUTDOWN); spin_unlock_irqrestore(&tick_broadcast_lock, flags); @@ -316,6 +316,8 @@ int tick_resume_broadcast(void) bc = tick_broadcast_device.evtdev; if (bc) { + clockevents_set_mode(bc, CLOCK_EVT_MODE_RESUME); + switch (tick_broadcast_device.mode) { case TICKDEV_MODE_PERIODIC: if(!cpus_empty(tick_broadcast_mask)) |