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enable interrupts during busy waiting

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Stefan Lankes 2017-11-17 19:23:54 +01:00
parent fe330cf103
commit 8b170bb527
1 changed files with 2 additions and 0 deletions
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2
include/hermit/spinlock.h
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@ -186,7 +186,9 @@ inline static int spinlock_irqsave_lock(spinlock_irqsave_t* s) {
ticket = atomic_int64_inc(&s->queue); ticket = atomic_int64_inc(&s->queue);
while (atomic_int64_read(&s->dequeue) != ticket) { while (atomic_int64_read(&s->dequeue) != ticket) {
irq_nested_enable(flags);
PAUSE; PAUSE;
irq_nested_disable();
} }
s->coreid = CORE_ID; s->coreid = CORE_ID;