ncpfs: 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>
diff --git a/fs/ncpfs/mmap.c b/fs/ncpfs/mmap.c
index ee24df5..3c5dd55 100644
--- a/fs/ncpfs/mmap.c
+++ b/fs/ncpfs/mmap.c
@@ -117,7 +117,7 @@
return -EINVAL;
/* we do not support files bigger than 4GB... We eventually
supports just 4GB... */
- if (((vma->vm_end - vma->vm_start) >> PAGE_SHIFT) + vma->vm_pgoff
+ if (vma_pages(vma) + vma->vm_pgoff
> (1U << (32 - PAGE_SHIFT)))
return -EFBIG;