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: NeilBrown <neilb@suse.de>
diff --git a/drivers/md/md.c b/drivers/md/md.c
index 9fa98fc..c6b8d9f 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -888,6 +888,10 @@
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);