diff mbox series

[v2,md-6.14,3/5] md: add a new callback pers->bitmap_sector()

Message ID 20241218121745.2459-4-yukuai@kernel.org (mailing list archive)
State New
Headers show
Series md/md-bitmap: move bitmap_{start, end}write to md upper layer | expand

Commit Message

yukuai@kernel.org Dec. 18, 2024, 12:17 p.m. UTC 
From: Yu Kuai <yukuai3@huawei.com>

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>
Signed-off-by: Yu Kuai <yukuai@kernel.org>
---
 drivers/md/md.h | 3 +++
 1 file changed, 3 insertions(+)
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Patch

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 {