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In ntoskrnl_unlock_dpc(), use atomic_store instead of atomic_cmpset

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to give up the spinlock.

Suggested by: bde
This commit is contained in:
Bill Paul 2004-04-18 18:38:59 +00:00
parent cd4db58afd
commit e1c0113ffd
1 changed files with 2 additions and 2 deletions
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4
sys/compat/ndis/subr_ntoskrnl.c
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@ -1029,7 +1029,7 @@ ntoskrnl_lock_dpc(/*lock*/ void)
__asm__ __volatile__ ("" : "=c" (lock));
while (atomic_cmpset_acq_int((volatile u_int *)lock, 0, 1) == 0)
/* do nothing */;
/* sit and spin */;
return;
}
@ -1041,7 +1041,7 @@ ntoskrnl_unlock_dpc(/*lock*/ void)
__asm__ __volatile__ ("" : "=c" (lock));
atomic_cmpset_rel_int((volatile u_int *)lock, 1, 0);
atomic_store_rel_int((volatile u_int *)lock, 0);
return;
}