md: teach sync_page_io about new_data_offset. (1fdd6fc9) · Commits · 戴 / test

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:

NeilBrown <neilb@suse.de>

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);

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