In reshape_request it already adds len to sector_nr already. It's wrong to add len to sector_nr again after adding pages to bio. If there is bad block it can't copy one chunk at a time, it needs to goto read_more. Now the sector_nr is wrong. It can cause data corruption. Signed-off-by: Xiao Ni <xni@xxxxxxxxxx> --- drivers/md/raid10.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c index abb5d38..ecef42b 100644 --- a/drivers/md/raid10.c +++ b/drivers/md/raid10.c @@ -4670,7 +4670,6 @@ static sector_t reshape_request(struct mddev *mddev, sector_t sector_nr, atomic_inc(&r10_bio->remaining); read_bio->bi_next = NULL; generic_make_request(read_bio); - sector_nr += nr_sectors; sectors_done += nr_sectors; if (sector_nr <= last) goto read_more; -- 2.7.5
