Re: Linux 2.6.20-rc6 - build failure

[Mark Fasheh]

On Thu, Jan 25, 2007 at 10:10:00PM +1100, Eyal Lebedinsky wrote:
> WARNING: "__udivdi3" [fs/ocfs2/ocfs2.ko] undefined!

Doh! This one is almost definitely my fault. Does the attached patch get rid
of that warning for you?


From: Mark Fasheh <mark.fasheh@xxxxxxxxxx>
ocfs2: fix thinko in ocfs2_backup_super_blkno()

Fix a bug which was introduced when I synced up ocfs2_fs.h with ocfs2-tools.
We can't do u64/u32 in kernel.

Signed-off-by: Mark Fasheh <mark.fasheh@xxxxxxxxxx>
---
 fs/ocfs2/ocfs2_fs.h |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/fs/ocfs2/ocfs2_fs.h b/fs/ocfs2/ocfs2_fs.h
index c99e905..e61e218 100644
--- a/fs/ocfs2/ocfs2_fs.h
+++ b/fs/ocfs2/ocfs2_fs.h
@@ -587,7 +587,7 @@ static inline u64 ocfs2_backup_super_blkno(struct super_block *sb, int index)
 
 	if (index >= 0 && index < OCFS2_MAX_BACKUP_SUPERBLOCKS) {
 		offset <<= (2 * index);
-		offset /= sb->s_blocksize;
+		offset >>= sb->s_blocksize_bits;
 		return offset;
 	}
 
-- 
1.4.4.2

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