Author: gber
Date: Fri Feb 1 11:39:03 2013
New Revision: 246205
URL: http://svnweb.freebsd.org/changeset/base/246205
Log:
Get time of next event from other cores only if SMP is already started.
Reviewed by: mav
Obtained from: Semihalf
Modified:
head/sys/kern/kern_clocksource.c
Modified: head/sys/kern/kern_clocksource.c
==============================================================================
--- head/sys/kern/kern_clocksource.c Fri Feb 1 10:26:31 2013
(r246204)
+++ head/sys/kern/kern_clocksource.c Fri Feb 1 11:39:03 2013
(r246205)
@@ -317,14 +317,16 @@ getnextevent(struct bintime *event)
nonidle = !state->idle;
if ((timer->et_flags & ET_FLAGS_PERCPU) == 0) {
#ifdef SMP
- CPU_FOREACH(cpu) {
- if (curcpu == cpu)
- continue;
- state = DPCPU_ID_PTR(cpu, timerstate);
- nonidle += !state->idle;
- if (bintime_cmp(event, &state->nextevent, >)) {
- *event = state->nextevent;
- c = cpu;
+ if (smp_started) {
+ CPU_FOREACH(cpu) {
+ if (curcpu == cpu)
+ continue;
+ state = DPCPU_ID_PTR(cpu, timerstate);
+ nonidle += !state->idle;
+ if (bintime_cmp(event, &state->nextevent, >)) {
+ *event = state->nextevent;
+ c = cpu;
+ }
}
}
#endif
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