diff options
Diffstat (limited to 'kernel/time/tick-common.c')
| -rw-r--r-- | kernel/time/tick-common.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/kernel/time/tick-common.c b/kernel/time/tick-common.c index bfda3f7f0716..a96ec9ab3454 100644 --- a/kernel/time/tick-common.c +++ b/kernel/time/tick-common.c @@ -31,7 +31,7 @@ DEFINE_PER_CPU(struct tick_device, tick_cpu_device); */ ktime_t tick_next_period; ktime_t tick_period; -static int tick_do_timer_cpu = -1; +int tick_do_timer_cpu __read_mostly = -1; DEFINE_SPINLOCK(tick_device_lock); /* @@ -295,6 +295,12 @@ static void tick_shutdown(unsigned int *cpup) clockevents_exchange_device(dev, NULL); td->evtdev = NULL; } + /* Transfer the do_timer job away from this cpu */ + if (*cpup == tick_do_timer_cpu) { + int cpu = first_cpu(cpu_online_map); + + tick_do_timer_cpu = (cpu != NR_CPUS) ? cpu : -1; + } spin_unlock_irqrestore(&tick_device_lock, flags); } |