The patched code is used to get chunks number, should use
round-up div to replace current sector_div.
The same code is in md_bitmap_resize():
```
chunks = DIV_ROUND_UP_SECTOR_T(blocks, 1 << chunkshift);
```
Signed-off-by: Zhao Heming <heming.zhao@xxxxxxxx>
---
v2:
- change grammar mistake in patch Subject
- fix code syntax error
---
drivers/md/md-bitmap.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/md/md-bitmap.c b/drivers/md/md-bitmap.c
index b10c51988c8e..553b6406ba1c 100644
--- a/drivers/md/md-bitmap.c
+++ b/drivers/md/md-bitmap.c
@@ -605,8 +605,8 @@ static int md_bitmap_read_sb(struct bitmap *bitmap)
if (bitmap->cluster_slot >= 0) {
sector_t bm_blocks = bitmap->mddev->resync_max_sectors;
- sector_div(bm_blocks,
- bitmap->mddev->bitmap_info.chunksize >> 9);
+ bm_blocks = DIV_ROUND_UP_SECTOR_T(bm_blocks,
+ (bitmap->mddev->bitmap_info.chunksize >> 9));
/* bits to bytes */
bm_blocks = ((bm_blocks+7) >> 3) + sizeof(bitmap_super_t);
/* to 4k blocks */
--
2.27.0
