void ia64_ptr_entry()

in mm/tlb.c [557:590]

• 30 lines of code
• 11 McCabe index (conditional complexity)

void ia64_ptr_entry(u64 target_mask, int slot)
{
	int cpu = smp_processor_id();
	int i;
	struct ia64_tr_entry *p;

	if (slot < IA64_TR_ALLOC_BASE || slot >= per_cpu(ia64_tr_num, cpu))
		return;

	if (target_mask & 0x1) {
		p = ia64_idtrs[cpu] + slot;
		if ((p->pte&0x1) && is_tr_overlap(p, p->ifa, p->itir>>2)) {
			p->pte = 0;
			ia64_ptr(0x1, p->ifa, p->itir>>2);
			ia64_srlz_i();
		}
	}

	if (target_mask & 0x2) {
		p = ia64_idtrs[cpu] + IA64_TR_ALLOC_MAX + slot;
		if ((p->pte & 0x1) && is_tr_overlap(p, p->ifa, p->itir>>2)) {
			p->pte = 0;
			ia64_ptr(0x2, p->ifa, p->itir>>2);
			ia64_srlz_i();
		}
	}

	for (i = per_cpu(ia64_tr_used, cpu); i >= IA64_TR_ALLOC_BASE; i--) {
		if (((ia64_idtrs[cpu] + i)->pte & 0x1) ||
		    ((ia64_idtrs[cpu] + IA64_TR_ALLOC_MAX + i)->pte & 0x1))
			break;
	}
	per_cpu(ia64_tr_used, cpu) = i;
}