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 /mm/memory_hotplug.c | |
| 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 'mm/memory_hotplug.c')
| -rw-r--r-- | mm/memory_hotplug.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c index 8285346be663..1b6fe8ca71e6 100644 --- a/mm/memory_hotplug.c +++ b/mm/memory_hotplug.c @@ -401,13 +401,12 @@ static int __meminit __add_zone(struct zone *zone, unsigned long phys_start_pfn) static int __meminit __add_section(int nid, struct zone *zone, unsigned long phys_start_pfn) { - int nr_pages = PAGES_PER_SECTION; int ret; if (pfn_valid(phys_start_pfn)) return -EEXIST; - ret = sparse_add_one_section(zone, phys_start_pfn, nr_pages); + ret = sparse_add_one_section(zone, phys_start_pfn); if (ret < 0) return ret; |