From 013ad043906b2befd4a9bfb06219ed9fedd92716 Mon Sep 17 00:00:00 2001
From: Mike Snitzer <snitzer@redhat.com>
Date: Thu, 13 Sep 2018 21:16:20 -0400
Subject: [PATCH] dm thin metadata: fix __udivdi3 undefined on 32-bit
Git-commit: 013ad043906b2befd4a9bfb06219ed9fedd92716
References: bsc#1111974
Patch-mainline: v4.19-rc7
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 <snitzer@redhat.com>
Signed-off-by: Coly Li <colyli@suse.de>
---
drivers/md/dm-thin-metadata.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/drivers/md/dm-thin-metadata.c b/drivers/md/dm-thin-metadata.c
index 74f6770c70b1..20b0776e39ef 100644
--- a/drivers/md/dm-thin-metadata.c
+++ b/drivers/md/dm-thin-metadata.c
@@ -832,10 +832,8 @@ 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,
--
2.19.0