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optimize spinlock spin

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This commit is contained in:
Rich Felker
2011-03-24 23:05:17 -04:00
parent 8ae2fa6563
commit c322fe4e1a
1 changed files with 1 additions and 1 deletions
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2
src/thread/pthread_spin_lock.c
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@ -2,6 +2,6 @@
int pthread_spin_lock(pthread_spinlock_t *s)
{
while (a_xchg(s, 1));
while (*s || a_xchg(s, 1));
return 0;
}