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

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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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Yu Kuai
2025-02-10 15:33:20 +08:00
committed by Greg Kroah-Hartman
parent 3e41ab9aef
commit 14bc83e97f
1 changed files with 3 additions and 0 deletions
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3
drivers/md/md.h
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@@ -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 {