ClearBitAtomic
inline void ClearBitAtomic(int32 cpu);
fromMap->ActiveOnCpus().ClearBitAtomic(cpu);
activePagingStructures->active_on_cpus.ClearBitAtomic(cpu);
gCPUEnabled.ClearBitAtomic(cpuID);
msg->proc_bitmap.ClearBitAtomic(currentCPU);
sEarlyCPUCallSet.ClearBitAtomic(cpu);