Commits
Mike Snitzer committed 1c357a1e86a
dm: allocate blk_mq_tag_set rather than embed in mapped_device The blk_mq_tag_set is only needed for dm-mq support. There is point wasting space in 'struct mapped_device' for non-dm-mq devices. Signed-off-by: Mike Snitzer <snitzer@redhat.com> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> # check kzalloc return