kvm/mmu/mmu.c

2211 	 * active_mmu_pages must be a FIFO list, as kvm_zap_obsolete_pages()
2216 	list_add(&sp->link, &kvm->arch.active_mmu_pages);
2540 	/* Zapping children means active_mmu_pages has become unstable. */
2634 	if (list_empty(&kvm->arch.active_mmu_pages))
2638 	list_for_each_entry_safe_reverse(sp, tmp, &kvm->arch.active_mmu_pages, link) {
6216 	      &kvm->arch.active_mmu_pages, link) {
6219 		 * since active_mmu_pages is a FIFO list.
6332 	INIT_LIST_HEAD(&kvm->arch.active_mmu_pages);
6832 	list_for_each_entry_safe(sp, node, &kvm->arch.active_mmu_pages, link) {
7200 		 * We use a separate list instead of just using active_mmu_pages
7204 		 * doesn't use active_mmu_pages.