diff options
| author | Johannes Berg <johannes.berg@intel.com> | 2014-02-20 11:55:12 +0100 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2014-02-20 11:55:12 +0100 |
| commit | bf5f48339a019c9b4b42284c3f45d58942cbda27 (patch) | |
| tree | 79976135166ffbdaf4ccb91bcadb17ddb551f060 /arch/powerpc/kernel/time.c | |
| parent | d85dad75566674ca8012715ac00a84ced3697972 (diff) | |
| parent | 35582ad9d342025653aaf28ed321bf5352488d7f (diff) | |
Merge remote-tracking branch 'wireless-next/master' into mac80211-next
Diffstat (limited to 'arch/powerpc/kernel/time.c')
| -rw-r--r-- | arch/powerpc/kernel/time.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c index b3b144121cc..b3dab20acf3 100644 --- a/arch/powerpc/kernel/time.c +++ b/arch/powerpc/kernel/time.c @@ -510,7 +510,6 @@ void timer_interrupt(struct pt_regs * regs) */ may_hard_irq_enable(); - __get_cpu_var(irq_stat).timer_irqs++; #if defined(CONFIG_PPC32) && defined(CONFIG_PMAC) if (atomic_read(&ppc_n_lost_interrupts) != 0) @@ -532,10 +531,15 @@ void timer_interrupt(struct pt_regs * regs) *next_tb = ~(u64)0; if (evt->event_handler) evt->event_handler(evt); + __get_cpu_var(irq_stat).timer_irqs_event++; } else { now = *next_tb - now; if (now <= DECREMENTER_MAX) set_dec((int)now); + /* We may have raced with new irq work */ + if (test_irq_work_pending()) + set_dec(1); + __get_cpu_var(irq_stat).timer_irqs_others++; } #ifdef CONFIG_PPC64 @@ -801,8 +805,16 @@ static void __init clocksource_init(void) static int decrementer_set_next_event(unsigned long evt, struct clock_event_device *dev) { + /* Don't adjust the decrementer if some irq work is pending */ + if (test_irq_work_pending()) + return 0; __get_cpu_var(decrementers_next_tb) = get_tb_or_rtc() + evt; set_dec(evt); + + /* We may have raced with new irq work */ + if (test_irq_work_pending()) + set_dec(1); + return 0; } |