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char: Use vma_pages() to replace (vm_end - vm_start) >> PAGE_SHIFT
authorLibin <huawei.libin@huawei.com>
Mon, 13 May 2013 02:17:39 +0000 (10:17 +0800)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Tue, 21 May 2013 17:07:54 +0000 (10:07 -0700)
commita0ea59d56dfab021ecc65365275e532c6b937adb
treefc14ad5175bb30089aea6591a732b4a750faf58ftree
parent80fe6361540fd7e0a38326b02b4f2a5e68c99d0acommit | diff
char: 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: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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