x86: use cpumask function for present, possible, and online cpus

cpu_online(), cpu_present(), for_each_possible_cpu(), num_possible_cpus()
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

arch/x86/kernel/genapic_64.c

@@ -51,7 +51,7 @@ void __init setup_apic_routing(void)
 	else
 #endif
 
-	if (cpus_weight(cpu_possible_map) <= 8)
+	if (num_possible_cpus() <= 8)
 		genapic = &apic_flat;
 	else
 		genapic = &apic_physflat;

arch/x86/kernel/smpboot.c

@@ -1058,7 +1058,7 @@ int __cpuinit native_cpu_up(unsigned int cpu)
 	check_tsc_sync_source(cpu);
 	local_irq_restore(flags);
 
-	while (!cpu_isset(cpu, cpu_online_map)) {
+	while (!cpu_online(cpu)) {
 		cpu_relax();
 		touch_nmi_watchdog();
 	}
@@ -1168,7 +1168,7 @@ static void __init smp_cpu_index_default(void)
 	int i;
 	struct cpuinfo_x86 *c;
 
-	for_each_cpu_mask(i, cpu_possible_map) {
+	for_each_possible_cpu(i) {
 		c = &cpu_data(i);
 		/* mark all to hotplug */
 		c->cpu_index = NR_CPUS;

arch/x86/kernel/tlb_64.c

@@ -195,9 +195,9 @@ static int __cpuinit init_smp_flush(void)
 {
 	int i;
 
-	for_each_cpu_mask(i, cpu_possible_map) {
+	for_each_possible_cpu(i)
 		spin_lock_init(&per_cpu(flush_state, i).tlbstate_lock);
-	}
+
 	return 0;
 }
 core_initcall(init_smp_flush);

arch/x86/mach-voyager/voyager_smp.c

@@ -113,7 +113,7 @@ static inline void send_QIC_CPI(__u32 cpuset, __u8 cpi)
 	for_each_online_cpu(cpu) {
 		if (cpuset & (1 << cpu)) {
 #ifdef VOYAGER_DEBUG
-			if (!cpu_isset(cpu, cpu_online_map))
+			if (!cpu_online(cpu))
 				VDEBUG(("CPU%d sending cpi %d to CPU%d not in "
 					"cpu_online_map\n",
 					hard_smp_processor_id(), cpi, cpu));
@@ -683,8 +683,8 @@ void __init smp_boot_cpus(void)
 	 * Code added from smpboot.c */
 	{
 		unsigned long bogosum = 0;
-		for (i = 0; i < NR_CPUS; i++)
-			if (cpu_isset(i, cpu_online_map))
+
+		for_each_online_cpu(i)
 			bogosum += cpu_data(i).loops_per_jiffy;
 		printk(KERN_INFO "Total of %d processors activated "
 		       "(%lu.%02lu BogoMIPS).\n",
@@ -1838,7 +1838,7 @@ static int __cpuinit voyager_cpu_up(unsigned int cpu)
 		return -EIO;
 	/* Unleash the CPU! */
 	cpu_set(cpu, smp_commenced_mask);
-	while (!cpu_isset(cpu, cpu_online_map))
+	while (!cpu_online(cpu))
 		mb();
 	return 0;
 }

arch/x86/xen/smp.c

@@ -193,7 +193,7 @@ void __init xen_smp_prepare_cpus(unsigned int max_cpus)
 
 	/* Restrict the possible_map according to max_cpus. */
 	while ((num_possible_cpus() > 1) && (num_possible_cpus() > max_cpus)) {
-		for (cpu = NR_CPUS-1; !cpu_isset(cpu, cpu_possible_map); cpu--)
+		for (cpu = NR_CPUS - 1; !cpu_possible(cpu); cpu--)
 			continue;
 		cpu_clear(cpu, cpu_possible_map);
 	}