Hi Alasdair, This patch-set changes request-based dm to use the block-layer's clone setup interface, blk_rq_prep_clone(). (Before that, some clean-ups for request-based dm are included.) This patch-set can be applied on top of your linux-next patches including request-based dm (v3): http://marc.info/?l=dm-devel&m=124392590507004&w=2 Summary of the patch-set ------------------------ 1/4: dm core: use BUG_ON in dm_end_request() 2/4: dm core: clean up completion handling of clone bio 3/4: dm core: remove 'md' argument from free_rq_tio() 4/4: dm core: use generic clone setup interface drivers/md/dm.c | 160 ++++++++++++++++++-------------------------------------- 1 file changed, 52 insertions(+), 108 deletions(-) Thanks, Kiyoshi Ueda -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel