diff options
Diffstat (limited to 'drivers/base')
| -rw-r--r-- | drivers/base/cpu.c | 18 | ||||
| -rw-r--r-- | drivers/base/node.c | 36 |
2 files changed, 44 insertions, 10 deletions
diff --git a/drivers/base/cpu.c b/drivers/base/cpu.c index dd712b24ec9..3972d8ac978 100644 --- a/drivers/base/cpu.c +++ b/drivers/base/cpu.c @@ -8,6 +8,7 @@ #include <linux/cpu.h> #include <linux/topology.h> #include <linux/device.h> +#include <linux/node.h> #include "base.h" @@ -57,13 +58,12 @@ static void __devinit register_cpu_control(struct cpu *cpu) { sysdev_create_file(&cpu->sysdev, &attr_online); } -void unregister_cpu(struct cpu *cpu, struct node *root) +void unregister_cpu(struct cpu *cpu) { int logical_cpu = cpu->sysdev.id; - if (root) - sysfs_remove_link(&root->sysdev.kobj, - kobject_name(&cpu->sysdev.kobj)); + unregister_cpu_under_node(logical_cpu, cpu_to_node(logical_cpu)); + sysdev_remove_file(&cpu->sysdev, &attr_online); sysdev_unregister(&cpu->sysdev); @@ -109,23 +109,21 @@ static SYSDEV_ATTR(crash_notes, 0400, show_crash_notes, NULL); * * Initialize and register the CPU device. */ -int __devinit register_cpu(struct cpu *cpu, int num, struct node *root) +int __devinit register_cpu(struct cpu *cpu, int num) { int error; - cpu->node_id = cpu_to_node(num); cpu->sysdev.id = num; cpu->sysdev.cls = &cpu_sysdev_class; error = sysdev_register(&cpu->sysdev); - if (!error && root) - error = sysfs_create_link(&root->sysdev.kobj, - &cpu->sysdev.kobj, - kobject_name(&cpu->sysdev.kobj)); + if (!error && !cpu->no_control) register_cpu_control(cpu); if (!error) cpu_sys_devices[num] = &cpu->sysdev; + if (!error) + register_cpu_under_node(num, cpu_to_node(num)); #ifdef CONFIG_KEXEC if (!error) diff --git a/drivers/base/node.c b/drivers/base/node.c index cbd0f62b487..eae2bdc183b 100644 --- a/drivers/base/node.c +++ b/drivers/base/node.c @@ -11,6 +11,7 @@ #include <linux/cpumask.h> #include <linux/topology.h> #include <linux/nodemask.h> +#include <linux/cpu.h> static struct sysdev_class node_class = { set_kset_name("node"), @@ -192,9 +193,38 @@ void unregister_node(struct node *node) struct node node_devices[MAX_NUMNODES]; +/* + * register cpu under node + */ +int register_cpu_under_node(unsigned int cpu, unsigned int nid) +{ + if (node_online(nid)) { + struct sys_device *obj = get_cpu_sysdev(cpu); + if (!obj) + return 0; + return sysfs_create_link(&node_devices[nid].sysdev.kobj, + &obj->kobj, + kobject_name(&obj->kobj)); + } + + return 0; +} + +int unregister_cpu_under_node(unsigned int cpu, unsigned int nid) +{ + if (node_online(nid)) { + struct sys_device *obj = get_cpu_sysdev(cpu); + if (obj) + sysfs_remove_link(&node_devices[nid].sysdev.kobj, + kobject_name(&obj->kobj)); + } + return 0; +} + int register_one_node(int nid) { int error = 0; + int cpu; if (node_online(nid)) { int p_node = parent_node(nid); @@ -204,6 +234,12 @@ int register_one_node(int nid) parent = &node_devices[p_node]; error = register_node(&node_devices[nid], nid, parent); + + /* link cpu under this node */ + for_each_present_cpu(cpu) { + if (cpu_to_node(cpu) == nid) + register_cpu_under_node(cpu, nid); + } } return error; |