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poll: explicitly set header to NULL on leave and fix being bound to a cpu after timeout

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Matheus
2026-06-04 11:05:19 -03:00
parent bc0fc968a6
commit eef8f53711
1 changed files with 2 additions and 1 deletions
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kernel-src/io/poll.c
+2 -1
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@@ -67,6 +67,7 @@ void poll_leave(polldesc_t *desc) {
bool intstate = interrupt_set(false); bool intstate = interrupt_set(false);
spinlock_acquire(&header->lock); spinlock_acquire(&header->lock);
removefromlist(&header->data, &desc->data[i]); removefromlist(&header->data, &desc->data[i]);
desc->data[i].header = NULL;
spinlock_release(&header->lock); spinlock_release(&header->lock);
interrupt_set(intstate); interrupt_set(intstate);
} }
@@ -115,7 +116,7 @@ int poll_dowait(polldesc_t *desc, size_t ustimeout) {
ret = EINTR; ret = EINTR;
} }
if (ustimeout != 0 && ret != ETIMEDOUT) { if (ustimeout != 0) {
timer_remove(current_cpu()->timer, &sleepentry); timer_remove(current_cpu()->timer, &sleepentry);
sched_target_cpu(NULL); sched_target_cpu(NULL);
} }