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kernel: Add support for disabling CPUs in scheduler

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This commit is contained in:
Pawel Dziepak
2013-10-15 02:02:54 +02:00
parent 3de2c5ceec
commit ebec24f9e0
1 changed files with 12 additions and 2 deletions
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src/system/kernel/scheduler/scheduler_simple.cpp
+12 -2
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@@ -282,7 +282,6 @@ simple_enqueue(Thread* thread, bool newOne)
NotifySchedulerListeners(&SchedulerListener::ThreadEnqueuedInRunQueue, NotifySchedulerListeners(&SchedulerListener::ThreadEnqueuedInRunQueue,
thread); thread);
// TODO: disabled CPUs
int32 thisCPU = smp_get_current_cpu(); int32 thisCPU = smp_get_current_cpu();
int32 targetCPU = pinnedCPU; int32 targetCPU = pinnedCPU;
@@ -609,7 +608,18 @@ simple_reschedule(void)
schedulerOldThreadData->lost_cpu = false; schedulerOldThreadData->lost_cpu = false;
// select thread with the biggest priority // select thread with the biggest priority
nextThread = simple_dequeue_thread(thisCPU); if (oldThread->cpu->disabled) {
ASSERT(sCPURunQueues != NULL);
nextThread = sCPURunQueues[thisCPU].PeekMaximum();
if (nextThread != NULL)
sCPURunQueues[thisCPU].Remove(nextThread);
else {
nextThread = sRunQueue->GetHead(B_IDLE_PRIORITY);
if (nextThread != NULL)
sRunQueue->Remove(nextThread);
}
} else
nextThread = simple_dequeue_thread(thisCPU);
if (!nextThread) if (!nextThread)
panic("reschedule(): run queues are empty!\n"); panic("reschedule(): run queues are empty!\n");