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

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BugLink: https://bugs.launchpad.net/bugs/2111953

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: Yu Kuai <yukuai1@huaweicloud.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Manuel Diewald <manuel.diewald@canonical.com>
Signed-off-by: Mehmet Basaran <mehmet.basaran@canonical.com>
This commit is contained in:
Yu Kuai
2025-01-09 09:51:43 +08:00
committed by Mehmet Basaran
parent 58b404cb45
commit 679f3db7ad
1 changed files with 3 additions and 0 deletions
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drivers/md/md.h
+3
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@@ -667,6 +667,9 @@ 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 {