[uml-devel] [PATCH 17/19] UML - use DIV_ROUND_UP

[uml-devel] [PATCH 17/19] UML - use DIV_ROUND_UP

[Jeff Dike]

From: Jiri Olsa <olsajiri@gmail.com>

I just saw similar patches in the janitor kernel's list,
and spotted place it fits.

Signed-off-by: Jiri Olsa <olsajiri@gmail.com>
Signed-off-by: Jeff Dike <jdike@linux.intel.com>
---
 arch/um/drivers/ubd_kern.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

Index: linux-2.6-git/arch/um/drivers/ubd_kern.c
===================================================================
--- linux-2.6-git.orig/arch/um/drivers/ubd_kern.c	2008-04-24 16:51:07.000000000 -0400
+++ linux-2.6-git/arch/um/drivers/ubd_kern.c	2008-04-24 17:06:17.000000000 -0400
@@ -1004,8 +1004,8 @@ static void cowify_bitmap(__u64 io_offse
 	 * by one word.  Thanks to Lynn Kerby for the fix and James McMechan
 	 * for the original diagnosis.
 	 */
-	if(*cow_offset == ((bitmap_len + sizeof(unsigned long) - 1) /
-			   sizeof(unsigned long) - 1))
+	if (*cow_offset == (DIV_ROUND_UP(bitmap_len,
+					 sizeof(unsigned long)) - 1))
 		(*cow_offset)--;
 
 	bitmap_words[0] = bitmap[*cow_offset];

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