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-rw-r--r--drivers/md/bitmap.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/md/bitmap.c b/drivers/md/bitmap.c
index 03e0752af99f..ac79fef68143 100644
--- a/drivers/md/bitmap.c
+++ b/drivers/md/bitmap.c
@@ -571,9 +571,10 @@ static int bitmap_read_sb(struct bitmap *bitmap)
re_read:
/* If cluster_slot is set, the cluster is setup */
if (bitmap->cluster_slot >= 0) {
- sector_t bm_blocks;
+ sector_t bm_blocks = bitmap->mddev->resync_max_sectors;
- bm_blocks = bitmap->mddev->resync_max_sectors / (bitmap->mddev->bitmap_info.chunksize >> 9);
+ sector_div(bm_blocks,
+ bitmap->mddev->bitmap_info.chunksize >> 9);
bm_blocks = bm_blocks << 3;
bm_blocks = DIV_ROUND_UP_SECTOR_T(bm_blocks, 4096);
bitmap->mddev->bitmap_info.offset += bitmap->cluster_slot * (bm_blocks << 3);