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path: root/drivers/base/memory.c
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Diffstat (limited to 'drivers/base/memory.c')
-rw-r--r--drivers/base/memory.c38
1 files changed, 14 insertions, 24 deletions
diff --git a/drivers/base/memory.c b/drivers/base/memory.c
index 6981b55d582a..d31a421f7483 100644
--- a/drivers/base/memory.c
+++ b/drivers/base/memory.c
@@ -649,7 +649,7 @@ int __weak arch_get_memory_phys_device(unsigned long start_pfn)
*
* Called under device_hotplug_lock.
*/
-struct memory_block *find_memory_block_by_id(unsigned long block_id)
+struct memory_block *memory_block_get(unsigned long block_id)
{
struct memory_block *mem;
@@ -659,16 +659,6 @@ struct memory_block *find_memory_block_by_id(unsigned long block_id)
return mem;
}
-/*
- * Called under device_hotplug_lock.
- */
-struct memory_block *find_memory_block(unsigned long section_nr)
-{
- unsigned long block_id = memory_block_id(section_nr);
-
- return find_memory_block_by_id(block_id);
-}
-
static struct attribute *memory_memblk_attrs[] = {
&dev_attr_phys_index.attr,
&dev_attr_state.attr,
@@ -701,7 +691,7 @@ static int __add_memory_block(struct memory_block *memory)
ret = device_register(&memory->dev);
if (ret) {
- put_device(&memory->dev);
+ memory_block_put(memory);
return ret;
}
ret = xa_err(xa_store(&memory_blocks, memory->dev.id, memory,
@@ -795,9 +785,9 @@ static int add_memory_block(unsigned long block_id, int nid, unsigned long state
struct memory_block *mem;
int ret = 0;
- mem = find_memory_block_by_id(block_id);
+ mem = memory_block_get(block_id);
if (mem) {
- put_device(&mem->dev);
+ memory_block_put(mem);
return -EEXIST;
}
mem = kzalloc_obj(*mem);
@@ -845,8 +835,8 @@ static void remove_memory_block(struct memory_block *memory)
memory->group = NULL;
}
- /* drop the ref. we got via find_memory_block() */
- put_device(&memory->dev);
+ /* drop the ref. we got via memory_block_get() */
+ memory_block_put(memory);
device_unregister(&memory->dev);
}
@@ -880,7 +870,7 @@ int create_memory_block_devices(unsigned long start, unsigned long size,
end_block_id = block_id;
for (block_id = start_block_id; block_id != end_block_id;
block_id++) {
- mem = find_memory_block_by_id(block_id);
+ mem = memory_block_get(block_id);
if (WARN_ON_ONCE(!mem))
continue;
remove_memory_block(mem);
@@ -908,7 +898,7 @@ void remove_memory_block_devices(unsigned long start, unsigned long size)
return;
for (block_id = start_block_id; block_id != end_block_id; block_id++) {
- mem = find_memory_block_by_id(block_id);
+ mem = memory_block_get(block_id);
if (WARN_ON_ONCE(!mem))
continue;
num_poisoned_pages_sub(-1UL, memblk_nr_poison(mem));
@@ -1015,12 +1005,12 @@ int walk_memory_blocks(unsigned long start, unsigned long size,
return 0;
for (block_id = start_block_id; block_id <= end_block_id; block_id++) {
- mem = find_memory_block_by_id(block_id);
+ mem = memory_block_get(block_id);
if (!mem)
continue;
ret = func(mem, arg);
- put_device(&mem->dev);
+ memory_block_put(mem);
if (ret)
break;
}
@@ -1228,22 +1218,22 @@ int walk_dynamic_memory_groups(int nid, walk_memory_groups_func_t func,
void memblk_nr_poison_inc(unsigned long pfn)
{
const unsigned long block_id = pfn_to_block_id(pfn);
- struct memory_block *mem = find_memory_block_by_id(block_id);
+ struct memory_block *mem = memory_block_get(block_id);
if (mem) {
atomic_long_inc(&mem->nr_hwpoison);
- put_device(&mem->dev);
+ memory_block_put(mem);
}
}
void memblk_nr_poison_sub(unsigned long pfn, long i)
{
const unsigned long block_id = pfn_to_block_id(pfn);
- struct memory_block *mem = find_memory_block_by_id(block_id);
+ struct memory_block *mem = memory_block_get(block_id);
if (mem) {
atomic_long_sub(i, &mem->nr_hwpoison);
- put_device(&mem->dev);
+ memory_block_put(mem);
}
}