summaryrefslogtreecommitdiffstats
path: root/drivers/base/cpu.c
diff options
context:
space:
mode:
authorMike Travis <travis@sgi.com>2008-05-01 04:35:16 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-05-01 08:04:02 -0700
commite37d05dad7ff9744efd8ea95a70d389e9a65a6fc (patch)
tree63d969448b2869294a609ba64912f51b9e556c23 /drivers/base/cpu.c
parentbd7309677c937bf23296f6c81027123c84c5cc5c (diff)
downloadlinux-stable-e37d05dad7ff9744efd8ea95a70d389e9a65a6fc.tar.gz
linux-stable-e37d05dad7ff9744efd8ea95a70d389e9a65a6fc.tar.bz2
linux-stable-e37d05dad7ff9744efd8ea95a70d389e9a65a6fc.zip
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>
Diffstat (limited to 'drivers/base/cpu.c')
-rw-r--r--drivers/base/cpu.c10
1 files changed, 5 insertions, 5 deletions
diff --git a/drivers/base/cpu.c b/drivers/base/cpu.c
index 6fe417429977..e38dfed41d80 100644
--- a/drivers/base/cpu.c
+++ b/drivers/base/cpu.c
@@ -18,7 +18,7 @@ struct sysdev_class 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
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_unregister(&cpu->sysdev);
- cpu_sys_devices[logical_cpu] = NULL;
+ per_cpu(cpu_sys_devices, logical_cpu) = NULL;
return;
}
#else /* ... !CONFIG_HOTPLUG_CPU */
@@ -167,7 +167,7 @@ int __cpuinit register_cpu(struct cpu *cpu, int num)
if (!error && cpu->hotpluggable)
register_cpu_control(cpu);
if (!error)
- cpu_sys_devices[num] = &cpu->sysdev;
+ per_cpu(cpu_sys_devices, num) = &cpu->sysdev;
if (!error)
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)
{
- if (cpu < NR_CPUS)
- return cpu_sys_devices[cpu];
+ if (cpu < nr_cpu_ids && cpu_possible(cpu))
+ return per_cpu(cpu_sys_devices, cpu);
else
return NULL;
}