The patch titled
uml: use DIV_ROUND_UP
has been added to the -mm tree. Its filename is
uml-use-div_round_up.patch
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------------------------------------------------------
Subject: uml: use DIV_ROUND_UP
From: Jiri Olsa <olsajiri@xxxxxxxxx>
I just saw similar patches in the janitor kernel's list, and spotted place it
fits.
Signed-off-by: Jiri Olsa <olsajiri@xxxxxxxxx>
Signed-off-by: Jeff Dike <jdike@xxxxxxxxxxxxxxx>
Cc: WANG Cong <xiyou.wangcong@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/um/drivers/ubd_kern.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff -puN arch/um/drivers/ubd_kern.c~uml-use-div_round_up arch/um/drivers/ubd_kern.c
--- a/arch/um/drivers/ubd_kern.c~uml-use-div_round_up
+++ a/arch/um/drivers/ubd_kern.c
@@ -1178,8 +1178,8 @@ 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];
_
Patches currently in -mm which might be from olsajiri@xxxxxxxxx are
uml-use-div_round_up.patch
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