From: Yu Kuai <yukuai3@xxxxxxxxxx>
This callback will be used in raid5 to convert io ranges from array to
bitmap.
Signed-off-by: Yu Kuai <yukuai3@xxxxxxxxxx>
---
drivers/md/md.h | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/md/md.h b/drivers/md/md.h
index 4ba93af36126..de6dadb9a40b 100644
--- a/drivers/md/md.h
+++ b/drivers/md/md.h
@@ -746,6 +746,9 @@ struct md_personality
void *(*takeover) (struct mddev *mddev);
/* Changes the consistency policy of an active array. */
int (*change_consistency_policy)(struct mddev *mddev, const char *buf);
+ /* convert io ranges from array to bitmap */
+ void (*bitmap_sector)(struct mddev *mddev, sector_t *offset,
+ unsigned long *sectors);
};
struct md_sysfs_entry {
--
2.39.2
