UML - use DIV_ROUND_UP

PATCH In review Jeff Dike 1 participant 1 message Apr 25, 2008 User-mode Linux (UML)

lore

Share & tools

lore

Jeff Dike

author

2008-04-25 17:56 UTC #0 lore raw

PATCH 17/19 UML - use DIV_ROUND_UP

From: Jiri Olsa <[email protected]>

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

Signed-off-by Jiri Olsa <[email protected]>

Signed-off-by Jeff Dike <[email protected]>

---
 arch/um/drivers/ubd_kern.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

arch/um/drivers/ubd_kern.c +2 -2

Index: linux-2.6-git/arch/um/drivers/ubd_kern.c
===================================================================
@@ -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];

-------------------------------------------------------------------------
This SF.net email is sponsored by the 2008 JavaOne(SM) Conference Don't miss this year's exciting event. There's still time to save $100. Use priority code J8TL2D2.
http://ad.doubleclick.net/clk;198757673;13503038;p?http://java.sun.com/javaone
_______________________________________________
User-mode-linux-devel mailing list [email protected]
https://lists.sourceforge.net/lists/listinfo/user-mode-linux-devel