184 static inline void notify_partition_change(struct cpuset *cs, int old_prs)  in notify_partition_change()  argument
186 	if (old_prs == cs->partition_root_state)  in notify_partition_change()
1188 static void update_partition_sd_lb(struct cpuset *cs, int old_prs)  in update_partition_sd_lb()  argument
1191 	bool rebuild_domains = (new_prs > 0) || (old_prs > 0);  in update_partition_sd_lb()
1255 static void isolated_cpus_update(int old_prs, int new_prs, struct cpumask *xcpus)  in isolated_cpus_update()  argument
1257 	WARN_ON_ONCE(old_prs == new_prs);  in isolated_cpus_update()
1305 static bool partition_xcpus_del(int old_prs, struct cpuset *parent,  in partition_xcpus_del()  argument
1310 	WARN_ON_ONCE(old_prs < 0);  in partition_xcpus_del()
1318 	isolcpus_updated = (old_prs != parent->partition_root_state);  in partition_xcpus_del()
1320 		isolated_cpus_update(old_prs, parent->partition_root_state,  in partition_xcpus_del()
1647 	int old_prs, new_prs;  in update_parent_effective_cpumask()  local
1662 	old_prs = new_prs = cs->partition_root_state;  in update_parent_effective_cpumask()
1665 		if (is_prs_invalid(old_prs))  in update_parent_effective_cpumask()
1674 		if (old_prs > 0) {  in update_parent_effective_cpumask()
1675 			new_prs = -old_prs;  in update_parent_effective_cpumask()
1765 		if (is_prs_invalid(old_prs)) {  in update_parent_effective_cpumask()
1852 				new_prs = -old_prs;  in update_parent_effective_cpumask()
1859 				new_prs = -old_prs;  in update_parent_effective_cpumask()
1866 	if (!adding && !deleting && (new_prs == old_prs))  in update_parent_effective_cpumask()
1875 	if ((old_prs != new_prs) && (cmd != partcmd_update))  {  in update_parent_effective_cpumask()
1890 	if (old_prs != new_prs) {  in update_parent_effective_cpumask()
1900 		isolcpus_updated += partition_xcpus_del(old_prs, parent,  in update_parent_effective_cpumask()
1913 	if ((old_prs != new_prs) && (cmd == partcmd_update))  in update_parent_effective_cpumask()
1927 		update_partition_sd_lb(cs, old_prs);  in update_parent_effective_cpumask()
1929 	notify_partition_change(cs, old_prs);  in update_parent_effective_cpumask()
1986 			int old_prs = child->partition_root_state;  in compute_partition_effective_cpumask()  local
1996 			notify_partition_change(child, old_prs);  in compute_partition_effective_cpumask()
2024 	int old_prs, new_prs;  in update_cpumasks_hier()  local
2032 		old_prs = new_prs = cp->partition_root_state;  in update_cpumasks_hier()
2054 			remote = (new_prs == old_prs);  in update_cpumasks_hier()
2106 		if ((cp != cs) && old_prs) {  in update_cpumasks_hier()
2158 		notify_partition_change(cp, old_prs);  in update_cpumasks_hier()
2266 	int old_prs = cs->partition_root_state;  in update_cpumask()  local
2309 	if (old_prs) {  in update_cpumask()
2314 		} else if (prstate_housekeeping_conflict(old_prs, trialcs->effective_xcpus)) {  in update_cpumask()
2384 	if ((old_prs > 0) && !is_partition_valid(cs))  in update_cpumask()
2393 		update_partition_sd_lb(cs, old_prs);  in update_cpumask()
2415 	int old_prs = cs->partition_root_state;  in update_exclusive_cpumask()  local
2453 	if (old_prs) {  in update_exclusive_cpumask()
2457 		} else if (prstate_housekeeping_conflict(old_prs, trialcs->effective_xcpus)) {  in update_exclusive_cpumask()
2482 	if ((old_prs > 0) && !is_partition_valid(cs))  in update_exclusive_cpumask()
2496 		update_partition_sd_lb(cs, old_prs);  in update_exclusive_cpumask()
2841 	int err = PERR_NONE, old_prs = cs->partition_root_state;  in update_prstate()  local
2846 	if (old_prs == new_prs)  in update_prstate()
2852 	if (new_prs && is_prs_invalid(old_prs))  in update_prstate()
2853 		old_prs = PRS_MEMBER;  in update_prstate()
2862 	if (!old_prs) {  in update_prstate()
2896 	} else if (old_prs && new_prs) {  in update_prstate()
2934 		isolated_cpus_update(old_prs, new_prs, cs->effective_xcpus);  in update_prstate()
2942 	WARN_ON_ONCE(!old_prs && (new_prs > 0)  in update_prstate()
2946 	update_partition_sd_lb(cs, old_prs);  in update_prstate()
2948 	notify_partition_change(cs, old_prs);  in update_prstate()