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sem_acquire has no reason to do a notify! (#857)

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Graham Sanderson 2022-06-20 09:52:43 -05:00 • committed by GitHub
parent 9644399993
commit 8f09099757
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GPG key ID: 4AEE18F83AFDEB23
1 changed files with 3 additions and 3 deletions
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6
src/common/pico_sync/sem.c
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@ -23,7 +23,7 @@ void __time_critical_func(sem_acquire_blocking)(semaphore_t *sem) {
uint32_t save = spin_lock_blocking(sem->core.spin_lock);
if (sem->permits > 0) {
sem->permits--;
lock_internal_spin_unlock_with_notify(&sem->core, save);
spin_unlock(sem->core.spin_lock, save);
break;
}
lock_internal_spin_unlock_with_wait(&sem->core, save);
@ -43,7 +43,7 @@ bool __time_critical_func(sem_acquire_block_until)(semaphore_t *sem, absolute_ti
uint32_t save = spin_lock_blocking(sem->core.spin_lock);
if (sem->permits > 0) {
sem->permits--;
lock_internal_spin_unlock_with_notify(&sem->core, save);
spin_unlock(sem->core.spin_lock, save);
return true;
}
if (lock_internal_spin_unlock_with_best_effort_wait_or_timeout(&sem->core, save, until)) {
@ -56,7 +56,7 @@ bool __time_critical_func(sem_try_acquire)(semaphore_t *sem) {
uint32_t save = spin_lock_blocking(sem->core.spin_lock);
if (sem->permits > 0) {
sem->permits--;
lock_internal_spin_unlock_with_notify(&sem->core, save);
spin_unlock(sem->core.spin_lock, save);
return true;
}
spin_unlock(sem->core.spin_lock, save);