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Commit 1fdd6fc9 authored by NeilBrown's avatar NeilBrown
Browse files

md: teach sync_page_io about new_data_offset. 



Some code in raid1 and raid10 use sync_page_io to
read/write pages when responding to read errors.
As we will shortly support changing data_offset for
raid10, this function must understand new_data_offset.

So add that understanding.

Signed-off-by: default avatarNeilBrown <neilb@suse.de>
parent 5cf00fcd

drivers/md/md.c

+4 −0
Original line number Diff line number Diff line
@@ -888,6 +888,10 @@ int sync_page_io(struct md_rdev *rdev, sector_t sector, int size, 
		rdev->meta_bdev : rdev->bdev;

	if (metadata_op)

		bio->bi_sector = sector + rdev->sb_start;

	else if (rdev->mddev->reshape_position != MaxSector &&

		 (rdev->mddev->reshape_backwards ==

		  (sector >= rdev->mddev->reshape_position)))

		bio->bi_sector = sector + rdev->new_data_offset;

	else

		bio->bi_sector = sector + rdev->data_offset;

	bio_add_page(bio, page, size, 0);