diff options
Diffstat (limited to 'drivers/base/node.c')
| -rw-r--r-- | drivers/base/node.c | 162 |
1 files changed, 88 insertions, 74 deletions
diff --git a/drivers/base/node.c b/drivers/base/node.c index 5693ecee9a4..90aa2a11a93 100644 --- a/drivers/base/node.c +++ b/drivers/base/node.c @@ -1,8 +1,7 @@ /* - * drivers/base/node.c - basic Node class support + * Basic Node interface support */ -#include <linux/sysdev.h> #include <linux/module.h> #include <linux/init.h> #include <linux/mm.h> @@ -19,18 +18,16 @@ #include <linux/swap.h> #include <linux/slab.h> -static struct sysdev_class_attribute *node_state_attrs[]; - -static struct sysdev_class node_class = { +static struct bus_type node_subsys = { .name = "node", - .attrs = node_state_attrs, + .dev_name = "node", }; -static ssize_t node_read_cpumap(struct sys_device *dev, int type, char *buf) +static ssize_t node_read_cpumap(struct device *dev, int type, char *buf) { struct node *node_dev = to_node(dev); - const struct cpumask *mask = cpumask_of_node(node_dev->sysdev.id); + const struct cpumask *mask = cpumask_of_node(node_dev->dev.id); int len; /* 2008/04/07: buf currently PAGE_SIZE, need 9 chars per 32 bits. */ @@ -44,23 +41,23 @@ static ssize_t node_read_cpumap(struct sys_device *dev, int type, char *buf) return len; } -static inline ssize_t node_read_cpumask(struct sys_device *dev, - struct sysdev_attribute *attr, char *buf) +static inline ssize_t node_read_cpumask(struct device *dev, + struct device_attribute *attr, char *buf) { return node_read_cpumap(dev, 0, buf); } -static inline ssize_t node_read_cpulist(struct sys_device *dev, - struct sysdev_attribute *attr, char *buf) +static inline ssize_t node_read_cpulist(struct device *dev, + struct device_attribute *attr, char *buf) { return node_read_cpumap(dev, 1, buf); } -static SYSDEV_ATTR(cpumap, S_IRUGO, node_read_cpumask, NULL); -static SYSDEV_ATTR(cpulist, S_IRUGO, node_read_cpulist, NULL); +static DEVICE_ATTR(cpumap, S_IRUGO, node_read_cpumask, NULL); +static DEVICE_ATTR(cpulist, S_IRUGO, node_read_cpulist, NULL); #define K(x) ((x) << (PAGE_SHIFT - 10)) -static ssize_t node_read_meminfo(struct sys_device * dev, - struct sysdev_attribute *attr, char * buf) +static ssize_t node_read_meminfo(struct device *dev, + struct device_attribute *attr, char *buf) { int n; int nid = dev->id; @@ -157,10 +154,10 @@ static ssize_t node_read_meminfo(struct sys_device * dev, } #undef K -static SYSDEV_ATTR(meminfo, S_IRUGO, node_read_meminfo, NULL); +static DEVICE_ATTR(meminfo, S_IRUGO, node_read_meminfo, NULL); -static ssize_t node_read_numastat(struct sys_device * dev, - struct sysdev_attribute *attr, char * buf) +static ssize_t node_read_numastat(struct device *dev, + struct device_attribute *attr, char *buf) { return sprintf(buf, "numa_hit %lu\n" @@ -176,10 +173,10 @@ static ssize_t node_read_numastat(struct sys_device * dev, node_page_state(dev->id, NUMA_LOCAL), node_page_state(dev->id, NUMA_OTHER)); } -static SYSDEV_ATTR(numastat, S_IRUGO, node_read_numastat, NULL); +static DEVICE_ATTR(numastat, S_IRUGO, node_read_numastat, NULL); -static ssize_t node_read_vmstat(struct sys_device *dev, - struct sysdev_attribute *attr, char *buf) +static ssize_t node_read_vmstat(struct device *dev, + struct device_attribute *attr, char *buf) { int nid = dev->id; int i; @@ -191,10 +188,10 @@ static ssize_t node_read_vmstat(struct sys_device *dev, return n; } -static SYSDEV_ATTR(vmstat, S_IRUGO, node_read_vmstat, NULL); +static DEVICE_ATTR(vmstat, S_IRUGO, node_read_vmstat, NULL); -static ssize_t node_read_distance(struct sys_device * dev, - struct sysdev_attribute *attr, char * buf) +static ssize_t node_read_distance(struct device *dev, + struct device_attribute *attr, char * buf) { int nid = dev->id; int len = 0; @@ -212,7 +209,7 @@ static ssize_t node_read_distance(struct sys_device * dev, len += sprintf(buf + len, "\n"); return len; } -static SYSDEV_ATTR(distance, S_IRUGO, node_read_distance, NULL); +static DEVICE_ATTR(distance, S_IRUGO, node_read_distance, NULL); #ifdef CONFIG_HUGETLBFS /* @@ -230,7 +227,7 @@ static node_registration_func_t __hugetlb_unregister_node; static inline bool hugetlb_register_node(struct node *node) { if (__hugetlb_register_node && - node_state(node->sysdev.id, N_HIGH_MEMORY)) { + node_state(node->dev.id, N_HIGH_MEMORY)) { __hugetlb_register_node(node); return true; } @@ -266,17 +263,17 @@ int register_node(struct node *node, int num, struct node *parent) { int error; - node->sysdev.id = num; - node->sysdev.cls = &node_class; - error = sysdev_register(&node->sysdev); + node->dev.id = num; + node->dev.bus = &node_subsys; + error = device_register(&node->dev); if (!error){ - sysdev_create_file(&node->sysdev, &attr_cpumap); - sysdev_create_file(&node->sysdev, &attr_cpulist); - sysdev_create_file(&node->sysdev, &attr_meminfo); - sysdev_create_file(&node->sysdev, &attr_numastat); - sysdev_create_file(&node->sysdev, &attr_distance); - sysdev_create_file(&node->sysdev, &attr_vmstat); + device_create_file(&node->dev, &dev_attr_cpumap); + device_create_file(&node->dev, &dev_attr_cpulist); + device_create_file(&node->dev, &dev_attr_meminfo); + device_create_file(&node->dev, &dev_attr_numastat); + device_create_file(&node->dev, &dev_attr_distance); + device_create_file(&node->dev, &dev_attr_vmstat); scan_unevictable_register_node(node); @@ -296,17 +293,17 @@ int register_node(struct node *node, int num, struct node *parent) */ void unregister_node(struct node *node) { - sysdev_remove_file(&node->sysdev, &attr_cpumap); - sysdev_remove_file(&node->sysdev, &attr_cpulist); - sysdev_remove_file(&node->sysdev, &attr_meminfo); - sysdev_remove_file(&node->sysdev, &attr_numastat); - sysdev_remove_file(&node->sysdev, &attr_distance); - sysdev_remove_file(&node->sysdev, &attr_vmstat); + device_remove_file(&node->dev, &dev_attr_cpumap); + device_remove_file(&node->dev, &dev_attr_cpulist); + device_remove_file(&node->dev, &dev_attr_meminfo); + device_remove_file(&node->dev, &dev_attr_numastat); + device_remove_file(&node->dev, &dev_attr_distance); + device_remove_file(&node->dev, &dev_attr_vmstat); scan_unevictable_unregister_node(node); hugetlb_unregister_node(node); /* no-op, if memoryless node */ - sysdev_unregister(&node->sysdev); + device_unregister(&node->dev); } struct node node_devices[MAX_NUMNODES]; @@ -317,41 +314,41 @@ struct node node_devices[MAX_NUMNODES]; int register_cpu_under_node(unsigned int cpu, unsigned int nid) { int ret; - struct sys_device *obj; + struct device *obj; if (!node_online(nid)) return 0; - obj = get_cpu_sysdev(cpu); + obj = get_cpu_device(cpu); if (!obj) return 0; - ret = sysfs_create_link(&node_devices[nid].sysdev.kobj, + ret = sysfs_create_link(&node_devices[nid].dev.kobj, &obj->kobj, kobject_name(&obj->kobj)); if (ret) return ret; return sysfs_create_link(&obj->kobj, - &node_devices[nid].sysdev.kobj, - kobject_name(&node_devices[nid].sysdev.kobj)); + &node_devices[nid].dev.kobj, + kobject_name(&node_devices[nid].dev.kobj)); } int unregister_cpu_under_node(unsigned int cpu, unsigned int nid) { - struct sys_device *obj; + struct device *obj; if (!node_online(nid)) return 0; - obj = get_cpu_sysdev(cpu); + obj = get_cpu_device(cpu); if (!obj) return 0; - sysfs_remove_link(&node_devices[nid].sysdev.kobj, + sysfs_remove_link(&node_devices[nid].dev.kobj, kobject_name(&obj->kobj)); sysfs_remove_link(&obj->kobj, - kobject_name(&node_devices[nid].sysdev.kobj)); + kobject_name(&node_devices[nid].dev.kobj)); return 0; } @@ -393,15 +390,15 @@ int register_mem_sect_under_node(struct memory_block *mem_blk, int nid) continue; if (page_nid != nid) continue; - ret = sysfs_create_link_nowarn(&node_devices[nid].sysdev.kobj, - &mem_blk->sysdev.kobj, - kobject_name(&mem_blk->sysdev.kobj)); + ret = sysfs_create_link_nowarn(&node_devices[nid].dev.kobj, + &mem_blk->dev.kobj, + kobject_name(&mem_blk->dev.kobj)); if (ret) return ret; - return sysfs_create_link_nowarn(&mem_blk->sysdev.kobj, - &node_devices[nid].sysdev.kobj, - kobject_name(&node_devices[nid].sysdev.kobj)); + return sysfs_create_link_nowarn(&mem_blk->dev.kobj, + &node_devices[nid].dev.kobj, + kobject_name(&node_devices[nid].dev.kobj)); } /* mem section does not span the specified node */ return 0; @@ -434,10 +431,10 @@ int unregister_mem_sect_under_nodes(struct memory_block *mem_blk, continue; if (node_test_and_set(nid, *unlinked_nodes)) continue; - sysfs_remove_link(&node_devices[nid].sysdev.kobj, - kobject_name(&mem_blk->sysdev.kobj)); - sysfs_remove_link(&mem_blk->sysdev.kobj, - kobject_name(&node_devices[nid].sysdev.kobj)); + sysfs_remove_link(&node_devices[nid].dev.kobj, + kobject_name(&mem_blk->dev.kobj)); + sysfs_remove_link(&mem_blk->dev.kobj, + kobject_name(&node_devices[nid].dev.kobj)); } NODEMASK_FREE(unlinked_nodes); return 0; @@ -459,7 +456,15 @@ static int link_mem_sections(int nid) if (!present_section_nr(section_nr)) continue; mem_sect = __nr_to_section(section_nr); + + /* same memblock ? */ + if (mem_blk) + if ((section_nr >= mem_blk->start_section_nr) && + (section_nr <= mem_blk->end_section_nr)) + continue; + mem_blk = find_memory_block_hinted(mem_sect, mem_blk); + ret = register_mem_sect_under_node(mem_blk, nid); if (!err) err = ret; @@ -468,7 +473,7 @@ static int link_mem_sections(int nid) } if (mem_blk) - kobject_put(&mem_blk->sysdev.kobj); + kobject_put(&mem_blk->dev.kobj); return err; } @@ -596,19 +601,19 @@ static ssize_t print_nodes_state(enum node_states state, char *buf) } struct node_attr { - struct sysdev_class_attribute attr; + struct device_attribute attr; enum node_states state; }; -static ssize_t show_node_state(struct sysdev_class *class, - struct sysdev_class_attribute *attr, char *buf) +static ssize_t show_node_state(struct device *dev, + struct device_attribute *attr, char *buf) { struct node_attr *na = container_of(attr, struct node_attr, attr); return print_nodes_state(na->state, buf); } #define _NODE_ATTR(name, state) \ - { _SYSDEV_CLASS_ATTR(name, 0444, show_node_state, NULL), state } + { __ATTR(name, 0444, show_node_state, NULL), state } static struct node_attr node_state_attr[] = { _NODE_ATTR(possible, N_POSSIBLE), @@ -620,17 +625,26 @@ static struct node_attr node_state_attr[] = { #endif }; -static struct sysdev_class_attribute *node_state_attrs[] = { - &node_state_attr[0].attr, - &node_state_attr[1].attr, - &node_state_attr[2].attr, - &node_state_attr[3].attr, +static struct attribute *node_state_attrs[] = { + &node_state_attr[0].attr.attr, + &node_state_attr[1].attr.attr, + &node_state_attr[2].attr.attr, + &node_state_attr[3].attr.attr, #ifdef CONFIG_HIGHMEM - &node_state_attr[4].attr, + &node_state_attr[4].attr.attr, #endif NULL }; +static struct attribute_group memory_root_attr_group = { + .attrs = node_state_attrs, +}; + +static const struct attribute_group *cpu_root_attr_groups[] = { + &memory_root_attr_group, + NULL, +}; + #define NODE_CALLBACK_PRI 2 /* lower than SLAB */ static int __init register_node_type(void) { @@ -639,7 +653,7 @@ static int __init register_node_type(void) BUILD_BUG_ON(ARRAY_SIZE(node_state_attr) != NR_NODE_STATES); BUILD_BUG_ON(ARRAY_SIZE(node_state_attrs)-1 != NR_NODE_STATES); - ret = sysdev_class_register(&node_class); + ret = subsys_system_register(&node_subsys, cpu_root_attr_groups); if (!ret) { hotplug_memory_notifier(node_memory_callback, NODE_CALLBACK_PRI); |