diff options
| author | Zhang Yanfei <zhangyanfei@cn.fujitsu.com> | 2013-11-12 15:07:42 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-11-13 12:09:06 +0900 |
| commit | 85b35feaecd4d2284505b22708795bc1f03fc897 (patch) | |
| tree | 0160ae1452e94c2fcaf5f20b84c0f4b39a6882d2 /include | |
| parent | 071aee138410210e3764f3ae8d37ef46dc6d3b42 (diff) | |
mm/sparsemem: use PAGES_PER_SECTION to remove redundant nr_pages parameter
For below functions,
- sparse_add_one_section()
- kmalloc_section_memmap()
- __kmalloc_section_memmap()
- __kfree_section_memmap()
they are always invoked to operate on one memory section, so it is
redundant to always pass a nr_pages parameter, which is the page numbers
in one section. So we can directly use predefined macro PAGES_PER_SECTION
instead of passing the parameter.
Signed-off-by: Zhang Yanfei <zhangyanfei@cn.fujitsu.com>
Cc: Wen Congyang <wency@cn.fujitsu.com>
Cc: Tang Chen <tangchen@cn.fujitsu.com>
Cc: Toshi Kani <toshi.kani@hp.com>
Cc: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: Yasunori Goto <y-goto@jp.fujitsu.com>
Cc: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/memory_hotplug.h | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/include/linux/memory_hotplug.h b/include/linux/memory_hotplug.h index 22203c293f07..4ca3d951fe91 100644 --- a/include/linux/memory_hotplug.h +++ b/include/linux/memory_hotplug.h @@ -268,8 +268,7 @@ extern int arch_add_memory(int nid, u64 start, u64 size); extern int offline_pages(unsigned long start_pfn, unsigned long nr_pages); extern bool is_memblock_offlined(struct memory_block *mem); extern void remove_memory(int nid, u64 start, u64 size); -extern int sparse_add_one_section(struct zone *zone, unsigned long start_pfn, - int nr_pages); +extern int sparse_add_one_section(struct zone *zone, unsigned long start_pfn); extern void sparse_remove_one_section(struct zone *zone, struct mem_section *ms); extern struct page *sparse_decode_mem_map(unsigned long coded_mem_map, unsigned long pnum); |