diff options
Diffstat (limited to 'kernel/softirq.c')
-rw-r--r-- | kernel/softirq.c | 15 |
1 files changed, 5 insertions, 10 deletions
diff --git a/kernel/softirq.c b/kernel/softirq.c index a09502e2ef75..7c1a67ef0274 100644 --- a/kernel/softirq.c +++ b/kernel/softirq.c | |||
@@ -500,22 +500,17 @@ EXPORT_SYMBOL(tasklet_kill); | |||
500 | */ | 500 | */ |
501 | 501 | ||
502 | /* | 502 | /* |
503 | * The trampoline is called when the hrtimer expires. If this is | 503 | * The trampoline is called when the hrtimer expires. It schedules a tasklet |
504 | * called from the hrtimer interrupt then we schedule the tasklet as | 504 | * to run __tasklet_hrtimer_trampoline() which in turn will call the intended |
505 | * the timer callback function expects to run in softirq context. If | 505 | * hrtimer callback, but from softirq context. |
506 | * it's called in softirq context anyway (i.e. high resolution timers | ||
507 | * disabled) then the hrtimer callback is called right away. | ||
508 | */ | 506 | */ |
509 | static enum hrtimer_restart __hrtimer_tasklet_trampoline(struct hrtimer *timer) | 507 | static enum hrtimer_restart __hrtimer_tasklet_trampoline(struct hrtimer *timer) |
510 | { | 508 | { |
511 | struct tasklet_hrtimer *ttimer = | 509 | struct tasklet_hrtimer *ttimer = |
512 | container_of(timer, struct tasklet_hrtimer, timer); | 510 | container_of(timer, struct tasklet_hrtimer, timer); |
513 | 511 | ||
514 | if (hrtimer_is_hres_active(timer)) { | 512 | tasklet_hi_schedule(&ttimer->tasklet); |
515 | tasklet_hi_schedule(&ttimer->tasklet); | 513 | return HRTIMER_NORESTART; |
516 | return HRTIMER_NORESTART; | ||
517 | } | ||
518 | return ttimer->function(timer); | ||
519 | } | 514 | } |
520 | 515 | ||
521 | /* | 516 | /* |