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Commit 7c04e64a authored by Akinobu Mita's avatar Akinobu Mita Committed by Ingo Molnar
Browse files

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



cpu_online(), cpu_present(), for_each_possible_cpu(), num_possible_cpus()

Signed-off-by: default avatarAkinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
parent 877084fb

arch/x86/kernel/genapic_64.c

+1 −1
Original line number Diff line number Diff line
@@ -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

+2 −2
Original line number Diff line number Diff line
@@ -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

+2 −2
Original line number Diff line number Diff line
@@ -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

+5 −5
Original line number Diff line number Diff line
@@ -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

+1 −1
Original line number Diff line number Diff line
@@ -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);

	}