diff options
Diffstat (limited to 'drivers/base/memory.c')
| -rw-r--r-- | drivers/base/memory.c | 38 |
1 files changed, 25 insertions, 13 deletions
diff --git a/drivers/base/memory.c b/drivers/base/memory.c index bd02505..933442f 100644 --- a/drivers/base/memory.c +++ b/drivers/base/memory.c @@ -22,6 +22,7 @@ #include <linux/mm.h> #include <linux/mutex.h> #include <linux/stat.h> +#include <linux/slab.h> #include <asm/atomic.h> #include <asm/uaccess.h> @@ -44,7 +45,7 @@ static int memory_uevent(struct kset *kset, struct kobject *obj, struct kobj_uev return retval; } -static struct kset_uevent_ops memory_uevent_ops = { +static const struct kset_uevent_ops memory_uevent_ops = { .name = memory_uevent_name, .uevent = memory_uevent, }; @@ -309,17 +310,18 @@ static SYSDEV_ATTR(removable, 0444, show_mem_removable, NULL); * Block size attribute stuff */ static ssize_t -print_block_size(struct class *class, char *buf) +print_block_size(struct sysdev_class *class, struct sysdev_class_attribute *attr, + char *buf) { - return sprintf(buf, "%#lx\n", (unsigned long)PAGES_PER_SECTION * PAGE_SIZE); + return sprintf(buf, "%lx\n", (unsigned long)PAGES_PER_SECTION * PAGE_SIZE); } -static CLASS_ATTR(block_size_bytes, 0444, print_block_size, NULL); +static SYSDEV_CLASS_ATTR(block_size_bytes, 0444, print_block_size, NULL); static int block_size_init(void) { return sysfs_create_file(&memory_sysdev_class.kset.kobj, - &class_attr_block_size_bytes.attr); + &attr_block_size_bytes.attr); } /* @@ -330,7 +332,8 @@ static int block_size_init(void) */ #ifdef CONFIG_ARCH_MEMORY_PROBE static ssize_t -memory_probe_store(struct class *class, const char *buf, size_t count) +memory_probe_store(struct class *class, struct class_attribute *attr, + const char *buf, size_t count) { u64 phys_addr; int nid; @@ -367,7 +370,9 @@ static inline int memory_probe_init(void) /* Soft offline a page */ static ssize_t -store_soft_offline_page(struct class *class, const char *buf, size_t count) +store_soft_offline_page(struct class *class, + struct class_attribute *attr, + const char *buf, size_t count) { int ret; u64 pfn; @@ -384,7 +389,9 @@ store_soft_offline_page(struct class *class, const char *buf, size_t count) /* Forcibly offline a page, including killing processes. */ static ssize_t -store_hard_offline_page(struct class *class, const char *buf, size_t count) +store_hard_offline_page(struct class *class, + struct class_attribute *attr, + const char *buf, size_t count) { int ret; u64 pfn; @@ -423,12 +430,16 @@ static inline int memory_fail_init(void) * differentiation between which *physical* devices each * section belongs to... */ +int __weak arch_get_memory_phys_device(unsigned long start_pfn) +{ + return 0; +} static int add_memory_block(int nid, struct mem_section *section, - unsigned long state, int phys_device, - enum mem_add_context context) + unsigned long state, enum mem_add_context context) { struct memory_block *mem = kzalloc(sizeof(*mem), GFP_KERNEL); + unsigned long start_pfn; int ret = 0; if (!mem) @@ -437,7 +448,8 @@ static int add_memory_block(int nid, struct mem_section *section, mem->phys_index = __section_nr(section); mem->state = state; mutex_init(&mem->state_mutex); - mem->phys_device = phys_device; + start_pfn = section_nr_to_pfn(mem->phys_index); + mem->phys_device = arch_get_memory_phys_device(start_pfn); ret = register_memory(mem, section); if (!ret) @@ -509,7 +521,7 @@ int remove_memory_block(unsigned long node_id, struct mem_section *section, */ int register_new_memory(int nid, struct mem_section *section) { - return add_memory_block(nid, section, MEM_OFFLINE, 0, HOTPLUG); + return add_memory_block(nid, section, MEM_OFFLINE, HOTPLUG); } int unregister_memory_section(struct mem_section *section) @@ -542,7 +554,7 @@ int __init memory_dev_init(void) if (!present_section_nr(i)) continue; err = add_memory_block(0, __nr_to_section(i), MEM_ONLINE, - 0, BOOT); + BOOT); if (!ret) ret = err; } |