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(parent: ef9f515) | patch
uio: use vma_pages() to replace (vm_end - vm_start) >> PAGE_SHIFT
authorLibin <huawei.libin@huawei.com>
Wed, 3 Jul 2013 22:01:27 +0000 (15:01 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Wed, 3 Jul 2013 23:07:26 +0000 (16:07 -0700)
commit52c2dad914ca3ac84926106d95ddf47de2f40b45
treebed4ad81c3d8e8c169da070b63155578dd9b3b37tree | snapshot
parentef9f515a4c38c759c56c7d1e760cc243b6d516f4commit | diff
uio: 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>
drivers/uio/uio.c diff | blob | history
Domain: System / Kernel;