preempt_enable
preempt_enable();
preempt_enable();
preempt_enable();
preempt_enable(); \
preempt_enable();
preempt_enable();
preempt_enable();
#define put_cpu() preempt_enable()
preempt_enable();
preempt_enable();
preempt_enable();
preempt_enable();
preempt_enable();
__read_mostly static int preempt_enable = 1;
SYSCTL_INT(_lwkt, OID_AUTO, preempt_enable, CTLFLAG_RW,
&preempt_enable, 0, "Enable preemption");
if (preempt_enable == 0) {