diff options
Diffstat (limited to 'drivers/base/memory.c')
| -rw-r--r-- | drivers/base/memory.c | 41 |
1 files changed, 31 insertions, 10 deletions
diff --git a/drivers/base/memory.c b/drivers/base/memory.c index 0b704004258..71b4a32b171 100644 --- a/drivers/base/memory.c +++ b/drivers/base/memory.c @@ -97,7 +97,7 @@ int register_memory(struct memory_block *memory) int error; memory->sysdev.cls = &memory_sysdev_class; - memory->sysdev.id = memory->phys_index / sections_per_block; + memory->sysdev.id = memory->start_section_nr / sections_per_block; error = sysdev_register(&memory->sysdev); return error; @@ -138,12 +138,26 @@ static unsigned long get_memory_block_size(void) * uses. */ -static ssize_t show_mem_phys_index(struct sys_device *dev, +static ssize_t show_mem_start_phys_index(struct sys_device *dev, struct sysdev_attribute *attr, char *buf) { struct memory_block *mem = container_of(dev, struct memory_block, sysdev); - return sprintf(buf, "%08lx\n", mem->phys_index / sections_per_block); + unsigned long phys_index; + + phys_index = mem->start_section_nr / sections_per_block; + return sprintf(buf, "%08lx\n", phys_index); +} + +static ssize_t show_mem_end_phys_index(struct sys_device *dev, + struct sysdev_attribute *attr, char *buf) +{ + struct memory_block *mem = + container_of(dev, struct memory_block, sysdev); + unsigned long phys_index; + + phys_index = mem->end_section_nr / sections_per_block; + return sprintf(buf, "%08lx\n", phys_index); } /* @@ -158,7 +172,7 @@ static ssize_t show_mem_removable(struct sys_device *dev, container_of(dev, struct memory_block, sysdev); for (i = 0; i < sections_per_block; i++) { - pfn = section_nr_to_pfn(mem->phys_index + i); + pfn = section_nr_to_pfn(mem->start_section_nr + i); ret &= is_mem_section_removable(pfn, PAGES_PER_SECTION); } @@ -275,14 +289,15 @@ static int memory_block_change_state(struct memory_block *mem, mem->state = MEM_GOING_OFFLINE; for (i = 0; i < sections_per_block; i++) { - ret = memory_section_action(mem->phys_index + i, to_state); + ret = memory_section_action(mem->start_section_nr + i, + to_state); if (ret) break; } if (ret) { for (i = 0; i < sections_per_block; i++) - memory_section_action(mem->phys_index + i, + memory_section_action(mem->start_section_nr + i, from_state_req); mem->state = from_state_req; @@ -330,7 +345,8 @@ static ssize_t show_phys_device(struct sys_device *dev, return sprintf(buf, "%d\n", mem->phys_device); } -static SYSDEV_ATTR(phys_index, 0444, show_mem_phys_index, NULL); +static SYSDEV_ATTR(phys_index, 0444, show_mem_start_phys_index, NULL); +static SYSDEV_ATTR(end_phys_index, 0444, show_mem_end_phys_index, NULL); static SYSDEV_ATTR(state, 0644, show_mem_state, store_mem_state); static SYSDEV_ATTR(phys_device, 0444, show_phys_device, NULL); static SYSDEV_ATTR(removable, 0444, show_mem_removable, NULL); @@ -522,17 +538,21 @@ static int init_memory_block(struct memory_block **memory, return -ENOMEM; scn_nr = __section_nr(section); - mem->phys_index = base_memory_block_id(scn_nr) * sections_per_block; + mem->start_section_nr = + base_memory_block_id(scn_nr) * sections_per_block; + mem->end_section_nr = mem->start_section_nr + sections_per_block - 1; mem->state = state; mem->section_count++; mutex_init(&mem->state_mutex); - start_pfn = section_nr_to_pfn(mem->phys_index); + start_pfn = section_nr_to_pfn(mem->start_section_nr); mem->phys_device = arch_get_memory_phys_device(start_pfn); ret = register_memory(mem); if (!ret) ret = mem_create_simple_file(mem, phys_index); if (!ret) + ret = mem_create_simple_file(mem, end_phys_index); + if (!ret) ret = mem_create_simple_file(mem, state); if (!ret) ret = mem_create_simple_file(mem, phys_device); @@ -575,11 +595,12 @@ int remove_memory_block(unsigned long node_id, struct mem_section *section, mutex_lock(&mem_sysfs_mutex); mem = find_memory_block(section); + unregister_mem_sect_under_nodes(mem, __section_nr(section)); mem->section_count--; if (mem->section_count == 0) { - unregister_mem_sect_under_nodes(mem); mem_remove_simple_file(mem, phys_index); + mem_remove_simple_file(mem, end_phys_index); mem_remove_simple_file(mem, state); mem_remove_simple_file(mem, phys_device); mem_remove_simple_file(mem, removable); |