From: Yu Kuai <yukuai3@huawei.com>
Date: Thu, 9 Jan 2025 01:51:43 +0000 (+0800)
Subject: md: add a new callback pers->bitmap_sector()
X-Git-Tag: v6.14-rc1~202^2~8^2^2~2
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=0c984a283a3ea3f10bebecd6c57c1d41b2e4f518;p=thirdparty%2Flinux.git

md: add a new callback pers->bitmap_sector()

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>
---

diff --git a/drivers/md/md.h b/drivers/md/md.h
index 4ba93af36126d..de6dadb9a40b0 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 {