diff options
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/softirq.c | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/kernel/softirq.c b/kernel/softirq.c index 2b4328ea769f..dacd0ab51df4 100644 --- a/kernel/softirq.c +++ b/kernel/softirq.c @@ -332,15 +332,21 @@ void irq_enter(void) static inline void invoke_softirq(void) { if (!force_irqthreads) { +#ifdef CONFIG_HAVE_IRQ_EXIT_ON_IRQ_STACK /* * We can safely execute softirq on the current stack if * it is the irq stack, because it should be near empty - * at this stage. But we have no way to know if the arch - * calls irq_exit() on the irq stack. So call softirq - * in its own stack to prevent from any overrun on top - * of a potentially deep task stack. + * at this stage. + */ + __do_softirq(); +#else + /* + * Otherwise, irq_exit() is called on the task stack that can + * be potentially deep already. So call softirq in its own stack + * to prevent from any overrun. */ do_softirq_own_stack(); +#endif } else { wakeup_softirqd(); } |