MM: use DIV_ROUND_UP() in mm/memory.c

Replace a hand coded version of DIV_ROUND_UP().

Signed-off-by: Rolf Eike Beer <eike-kernel@sf-tec.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/mm/memory.c b/mm/memory.c
index f64cbf9baa36..ee2925998e2e 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -2673,7 +2673,7 @@ int make_pages_present(unsigned long addr, unsigned long end)
         write = (vma->vm_flags & VM_WRITE) != 0;
         BUG_ON(addr >= end);
         BUG_ON(end > vma->vm_end);
-        len = (end+PAGE_SIZE-1)/PAGE_SIZE-addr/PAGE_SIZE;
+        len = DIV_ROUND_UP(end, PAGE_SIZE) - addr/PAGE_SIZE;
         ret = get_user_pages(current, current->mm, addr,
                         len, write, 0, NULL, NULL);
         if (ret < 0)