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authorPaul Mackerras <paulus@samba.org>2006-03-09 14:32:05 +1100
committerPaul Mackerras <paulus@samba.org>2006-03-09 14:32:05 +1100
commit516450179454de9e689e0a53ed8f34b896e8651c (patch)
tree78eae2f77de6cd39b18c7393fc5854456fc3fb1f /arch/arm/kernel/time.c
parent6749c5507388f3fc3719f57a54b540ee83f6661a (diff)
parent0d514f040ac6629311974889d5b96bcf21c6461a (diff)
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Merge ../linux-2.6
Diffstat (limited to 'arch/arm/kernel/time.c')
-rw-r--r--arch/arm/kernel/time.c10
1 files changed, 6 insertions, 4 deletions
diff --git a/arch/arm/kernel/time.c b/arch/arm/kernel/time.c
index d7d932c0286..d6bd435a685 100644
--- a/arch/arm/kernel/time.c
+++ b/arch/arm/kernel/time.c
@@ -422,12 +422,14 @@ static int timer_dyn_tick_disable(void)
void timer_dyn_reprogram(void)
{
struct dyn_tick_timer *dyn_tick = system_timer->dyn_tick;
+ unsigned long next, seq;
- if (dyn_tick) {
- write_seqlock(&xtime_lock);
- if (dyn_tick->state & DYN_TICK_ENABLED)
+ if (dyn_tick && (dyn_tick->state & DYN_TICK_ENABLED)) {
+ next = next_timer_interrupt();
+ do {
+ seq = read_seqbegin(&xtime_lock);
dyn_tick->reprogram(next_timer_interrupt() - jiffies);
- write_sequnlock(&xtime_lock);
+ } while (read_seqretry(&xtime_lock, seq));
}
}