2102 static bool can_piggyback_subcore(struct kvmppc_vcore *pvc,  in can_piggyback_subcore()  argument
2112 	if (pvc->kvm != vc->kvm ||  in can_piggyback_subcore()
2113 	    pvc->tb_offset != vc->tb_offset ||  in can_piggyback_subcore()
2114 	    pvc->pcr != vc->pcr ||  in can_piggyback_subcore()
2115 	    pvc->lpcr != vc->lpcr)  in can_piggyback_subcore()
2120 	    (vc->num_threads > 1 || pvc->num_threads > 1))  in can_piggyback_subcore()
2123 	n_thr = cip->subcore_threads[sub] + pvc->num_threads;  in can_piggyback_subcore()
2130 	cip->total_threads += pvc->num_threads;  in can_piggyback_subcore()
2132 	pvc->master_vcore = vc;  in can_piggyback_subcore()
2133 	list_del(&pvc->preempt_list);  in can_piggyback_subcore()
2134 	list_add_tail(&pvc->preempt_list, &cip->vcs[sub]);  in can_piggyback_subcore()
2143 static bool can_piggyback(struct kvmppc_vcore *pvc, struct core_info *cip,  in can_piggyback()  argument
2148 	if (cip->total_threads + pvc->num_threads > target_threads)  in can_piggyback()
2152 		    can_piggyback_subcore(pvc, cip, sub))  in can_piggyback()
2155 	if (can_dynamic_split(pvc, cip))  in can_piggyback()
2183 	struct kvmppc_vcore *pvc, *vcnext;  in collect_piggybacks()  local
2186 	list_for_each_entry_safe(pvc, vcnext, &lp->list, preempt_list) {  in collect_piggybacks()
2187 		if (!spin_trylock(&pvc->lock))  in collect_piggybacks()
2189 		prepare_threads(pvc);  in collect_piggybacks()
2190 		if (!pvc->n_runnable) {  in collect_piggybacks()
2191 			list_del_init(&pvc->preempt_list);  in collect_piggybacks()
2192 			if (pvc->runner == NULL) {  in collect_piggybacks()
2193 				pvc->vcore_state = VCORE_INACTIVE;  in collect_piggybacks()
2194 				kvmppc_core_end_stolen(pvc);  in collect_piggybacks()
2196 			spin_unlock(&pvc->lock);  in collect_piggybacks()
2199 		if (!can_piggyback(pvc, cip, target_threads)) {  in collect_piggybacks()
2200 			spin_unlock(&pvc->lock);  in collect_piggybacks()
2203 		kvmppc_core_end_stolen(pvc);  in collect_piggybacks()
2204 		pvc->vcore_state = VCORE_PIGGYBACK;  in collect_piggybacks()
2279 	struct kvmppc_vcore *pvc, *vcnext;  in kvmppc_run_core()  local
2387 		list_for_each_entry(pvc, &core_info.vcs[sub], preempt_list) {  in kvmppc_run_core()
2388 			pvc->pcpu = pcpu + thr;  in kvmppc_run_core()
2389 			list_for_each_entry(vcpu, &pvc->runnable_threads,  in kvmppc_run_core()
2391 				kvmppc_start_thread(vcpu, pvc);  in kvmppc_run_core()
2392 				kvmppc_create_dtl_entry(vcpu, pvc);  in kvmppc_run_core()
2402 			if (pvc->master_vcore == pvc && !thr0_done)  in kvmppc_run_core()
2403 				kvmppc_start_thread(NULL, pvc);  in kvmppc_run_core()
2404 			thr += pvc->num_threads;  in kvmppc_run_core()
2432 		list_for_each_entry(pvc, &core_info.vcs[sub], preempt_list)  in kvmppc_run_core()
2433 			spin_unlock(&pvc->lock);  in kvmppc_run_core()
2484 		list_for_each_entry_safe(pvc, vcnext, &core_info.vcs[sub],  in kvmppc_run_core()
2486 			post_guest_process(pvc, pvc == vc);  in kvmppc_run_core()