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cpu: change cpu_sys_devices from array to per_cpu variable 

Change cpu_sys_devices from array to per_cpu variable in drivers/base/cpu.c.

Signed-off-by: Mike Travis <travis@sgi.com>
Cc: Ashok Raj <ashok.raj@intel.com>
Cc: Vivek Goyal <vgoyal@in.ibm.com>
Cc: Greg Kroah-Hartman <gregkh@suse.de>
Cc: Suresh Siddha <suresh.b.siddha@intel.com>
Cc: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Mike Travis 2008-05-01 04:35:16 -07:00 committed by Linus Torvalds
parent bd7309677c
commit e37d05dad7
1 changed files with 5 additions and 5 deletions
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10
drivers/base/cpu.c
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@ -18,7 +18,7 @@ struct sysdev_class cpu_sysdev_class = {
}; };
EXPORT_SYMBOL(cpu_sysdev_class); EXPORT_SYMBOL(cpu_sysdev_class);
static struct sys_device *cpu_sys_devices[NR_CPUS]; static DEFINE_PER_CPU(struct sys_device *, cpu_sys_devices);
#ifdef CONFIG_HOTPLUG_CPU #ifdef CONFIG_HOTPLUG_CPU
static ssize_t show_online(struct sys_device *dev, char *buf) static ssize_t show_online(struct sys_device *dev, char *buf)
@ -68,7 +68,7 @@ void unregister_cpu(struct cpu *cpu)
sysdev_remove_file(&cpu->sysdev, &attr_online); sysdev_remove_file(&cpu->sysdev, &attr_online);
sysdev_unregister(&cpu->sysdev); sysdev_unregister(&cpu->sysdev);
cpu_sys_devices[logical_cpu] = NULL; per_cpu(cpu_sys_devices, logical_cpu) = NULL;
return; return;
} }
#else /* ... !CONFIG_HOTPLUG_CPU */ #else /* ... !CONFIG_HOTPLUG_CPU */
@ -167,7 +167,7 @@ int __cpuinit register_cpu(struct cpu *cpu, int num)
if (!error && cpu->hotpluggable) if (!error && cpu->hotpluggable)
register_cpu_control(cpu); register_cpu_control(cpu);
if (!error) if (!error)
cpu_sys_devices[num] = &cpu->sysdev; per_cpu(cpu_sys_devices, num) = &cpu->sysdev;
if (!error) if (!error)
register_cpu_under_node(num, cpu_to_node(num)); register_cpu_under_node(num, cpu_to_node(num));
@ -180,8 +180,8 @@ int __cpuinit register_cpu(struct cpu *cpu, int num)
struct sys_device *get_cpu_sysdev(unsigned cpu) struct sys_device *get_cpu_sysdev(unsigned cpu)
{ {
if (cpu < NR_CPUS) if (cpu < nr_cpu_ids && cpu_possible(cpu))
return cpu_sys_devices[cpu]; return per_cpu(cpu_sys_devices, cpu);
else else
return NULL; return NULL;
} }