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| author | Libin <huawei.libin@huawei.com> | 2013-07-04 02:01:26 +0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-07-04 03:07:26 +0400 |
| commit | d6e932177090463e5c709e9e61bbd705a33a1609 (patch) | |
| tree | e833b8907a9c07662c5aaaef097a81575ba27653 /mm/mmap.c | |
| parent | b430e9d1c6d416306d44dbf3aa3148be7af78abc (diff) | |
| download | linux-d6e932177090463e5c709e9e61bbd705a33a1609.tar.xz | |
mm: use vma_pages() to replace (vm_end - vm_start) >> PAGE_SHIFT
(*->vm_end - *->vm_start) >> PAGE_SHIFT operation is implemented
as a inline funcion vma_pages() in linux/mm.h, so using it.
Signed-off-by: Libin <huawei.libin@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/mmap.c')
| -rw-r--r-- | mm/mmap.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/mmap.c b/mm/mmap.c index f681e1842fad..8468ffd05bae 100644 --- a/mm/mmap.c +++ b/mm/mmap.c @@ -955,7 +955,7 @@ can_vma_merge_after(struct vm_area_struct *vma, unsigned long vm_flags, if (is_mergeable_vma(vma, file, vm_flags) && is_mergeable_anon_vma(anon_vma, vma->anon_vma, vma)) { pgoff_t vm_pglen; - vm_pglen = (vma->vm_end - vma->vm_start) >> PAGE_SHIFT; + vm_pglen = vma_pages(vma); if (vma->vm_pgoff + vm_pglen == vm_pgoff) return 1; } |