From: Mike Snitzer Date: Fri, 14 Sep 2018 01:16:20 +0000 (-0400) Subject: dm thin metadata: fix __udivdi3 undefined on 32-bit X-Git-Tag: v4.4.160~1 X-Git-Url: http://git.hungrycats.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=93ae8552ec98405e84d194f9c5b084996c20ccdf;p=linux dm thin metadata: fix __udivdi3 undefined on 32-bit commit 013ad043906b2befd4a9bfb06219ed9fedd92716 upstream. sector_div() is only viable for use with sector_t. dm_block_t is typedef'd to uint64_t -- so use div_u64() instead. Fixes: 3ab918281 ("dm thin metadata: try to avoid ever aborting transactions") Signed-off-by: Mike Snitzer Cc: Sudip Mukherjee Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/md/dm-thin-metadata.c b/drivers/md/dm-thin-metadata.c index 14ab86424c6a..2711aa965445 100644 --- a/drivers/md/dm-thin-metadata.c +++ b/drivers/md/dm-thin-metadata.c @@ -843,10 +843,8 @@ static void __set_metadata_reserve(struct dm_pool_metadata *pmd) if (r) { DMERR("could not get size of metadata device"); pmd->metadata_reserve = max_blocks; - } else { - sector_div(total, 10); - pmd->metadata_reserve = min(max_blocks, total); - } + } else + pmd->metadata_reserve = min(max_blocks, div_u64(total, 10)); } struct dm_pool_metadata *dm_pool_metadata_open(struct block_device *bdev,