From: Yu Kuai <yukuai3@huawei.com>
commit 0c984a283a3ea3f10bebecd6c57c1d41b2e4f518 upstream.
This callback will be used in raid5 to convert io ranges from array to
bitmap.
Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Reviewed-by: Xiao Ni <xni@redhat.com>
Link: https://lore.kernel.org/r/20250109015145.158868-4-yukuai1@huaweicloud.com
Signed-off-by: Song Liu <song@kernel.org>
---
drivers/md/md.h | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/md/md.h b/drivers/md/md.h
index 7c9c13abd7ca..f395f4562bb9 100644
--- a/drivers/md/md.h
+++ b/drivers/md/md.h
@@ -661,6 +661,9 @@ 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