diff options
| author | Jianguo Wu <wujianguo@huawei.com> | 2014-01-23 15:53:19 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-01-23 16:36:52 -0800 |
| commit | c980e66a556659f14da2294e1fc696e1352b5d00 (patch) | |
| tree | d2c62f1c4bdb636abdba27e0258399eb21a9e1a2 /mm/mincore.c | |
| parent | b30afea019a4548ee77b73e83f03104e0e3a0556 (diff) | |
| download | lwn-c980e66a556659f14da2294e1fc696e1352b5d00.tar.gz lwn-c980e66a556659f14da2294e1fc696e1352b5d00.zip | |
mm: do_mincore() cleanup
Two cleanups:
1. remove redundant codes for hugetlb pages.
2. end = pmd_addr_end(addr, end) restricts [addr, end) within PMD_SIZE,
this may increase do_mincore() calls, remove it.
Signed-off-by: Jianguo Wu <wujianguo@huawei.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Cc: Minchan Kim <minchan.kim@gmail.com>
Cc: qiuxishi <qiuxishi@huawei.com>
Reviewed-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/mincore.c')
| -rw-r--r-- | mm/mincore.c | 7 |
1 files changed, 0 insertions, 7 deletions
diff --git a/mm/mincore.c b/mm/mincore.c index da2be56a7b8f..101623378fbf 100644 --- a/mm/mincore.c +++ b/mm/mincore.c @@ -225,13 +225,6 @@ static long do_mincore(unsigned long addr, unsigned long pages, unsigned char *v end = min(vma->vm_end, addr + (pages << PAGE_SHIFT)); - if (is_vm_hugetlb_page(vma)) { - mincore_hugetlb_page_range(vma, addr, end, vec); - return (end - addr) >> PAGE_SHIFT; - } - - end = pmd_addr_end(addr, end); - if (is_vm_hugetlb_page(vma)) mincore_hugetlb_page_range(vma, addr, end, vec); else |