Change the broadcast timer, if a timer with higher rating becomes available.
Signed-off-by: Venkatesh Pallipadi <[email protected]>
Index: linux-2.6.21-tolkml/kernel/time/tick-common.c
===================================================================
--- linux-2.6.21-tolkml.orig/kernel/time/tick-common.c 2007-04-25 20:08:32.000000000 -0700
+++ linux-2.6.21-tolkml/kernel/time/tick-common.c 2007-05-07 09:52:55.000000000 -0700
@@ -200,7 +200,7 @@
cpu = smp_processor_id();
if (!cpu_isset(cpu, newdev->cpumask))
- goto out;
+ goto out_bc;
td = &per_cpu(tick_cpu_device, cpu);
curdev = td->evtdev;
@@ -265,7 +265,7 @@
*/
if (tick_check_broadcast_device(newdev))
ret = NOTIFY_STOP;
-out:
+
spin_unlock_irqrestore(&tick_device_lock, flags);
return ret;
Index: linux-2.6.21-tolkml/kernel/time/tick-broadcast.c
===================================================================
--- linux-2.6.21-tolkml.orig/kernel/time/tick-broadcast.c 2007-04-25 20:08:32.000000000 -0700
+++ linux-2.6.21-tolkml/kernel/time/tick-broadcast.c 2007-05-07 09:54:32.000000000 -0700
@@ -58,8 +58,9 @@
*/
int tick_check_broadcast_device(struct clock_event_device *dev)
{
- if (tick_broadcast_device.evtdev ||
- (dev->features & CLOCK_EVT_FEAT_C3STOP))
+ if ((tick_broadcast_device.evtdev &&
+ tick_broadcast_device.evtdev->rating >= dev->rating) ||
+ (dev->features & CLOCK_EVT_FEAT_C3STOP))
return 0;
clockevents_exchange_device(NULL, dev);
@@ -483,11 +484,9 @@
*/
void tick_broadcast_setup_oneshot(struct clock_event_device *bc)
{
- if (bc->mode != CLOCK_EVT_MODE_ONESHOT) {
- bc->event_handler = tick_handle_oneshot_broadcast;
- clockevents_set_mode(bc, CLOCK_EVT_MODE_ONESHOT);
- bc->next_event.tv64 = KTIME_MAX;
- }
+ bc->event_handler = tick_handle_oneshot_broadcast;
+ clockevents_set_mode(bc, CLOCK_EVT_MODE_ONESHOT);
+ bc->next_event.tv64 = KTIME_MAX;
}
/*
-
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