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Make spinlocks faster (take two)

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This change is green on x86 and arm test fleet.
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Justine Tunney 2024-07-26 00:44:45 -07:00
parent 02e1cbcd00
commit 59692b0882
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GPG key ID: BE714B4575D6E328
14 changed files with 122 additions and 79 deletions
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libc/proc/fork.c
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@ -81,7 +81,6 @@ static void _onfork_child(void) {
_rand64_lock_obj = (pthread_mutex_t)PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP;
_pthread_lock_obj = (pthread_mutex_t)PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP;
atomic_store_explicit(&__maps.lock, 0, memory_order_relaxed);
atomic_store_explicit(&__get_tls()->tib_relock_maps, 0, memory_order_relaxed);
if (_weaken(_pthread_onfork_child))
_weaken(_pthread_onfork_child)();
}