20 	struct request *orig, *clone;  member
77 static void end_clone_bio(struct bio *clone)  in end_clone_bio()  argument
80 		container_of(clone, struct dm_rq_clone_bio_info, clone);  in end_clone_bio()
83 	blk_status_t error = clone->bi_status;  in end_clone_bio()
84 	bool is_last = !clone->bi_next;  in end_clone_bio()
86 	bio_put(clone);  in end_clone_bio()
155 static void dm_end_request(struct request *clone, blk_status_t error)  in dm_end_request()  argument
157 	struct dm_rq_target_io *tio = clone->end_io_data;  in dm_end_request()
161 	blk_rq_unprep_clone(clone);  in dm_end_request()
162 	tio->ti->type->release_clone_rq(clone, NULL);  in dm_end_request()
193 	if (tio->clone) {  in dm_requeue_original_request()
194 		blk_rq_unprep_clone(tio->clone);  in dm_requeue_original_request()
195 		tio->ti->type->release_clone_rq(tio->clone, NULL);  in dm_requeue_original_request()
202 static void dm_done(struct request *clone, blk_status_t error, bool mapped)  in dm_done()  argument
205 	struct dm_rq_target_io *tio = clone->end_io_data;  in dm_done()
212 			r = rq_end_io(tio->ti, clone, error, &tio->info);  in dm_done()
216 		if (req_op(clone) == REQ_OP_DISCARD &&  in dm_done()
217 		    !clone->q->limits.max_discard_sectors)  in dm_done()
219 		else if (req_op(clone) == REQ_OP_WRITE_ZEROES &&  in dm_done()
220 			 !clone->q->limits.max_write_zeroes_sectors)  in dm_done()
227 		dm_end_request(clone, error);  in dm_done()
253 	struct request *clone = tio->clone;  in dm_softirq_done()  local
255 	if (!clone) {  in dm_softirq_done()
267 	dm_done(clone, tio->error, mapped);  in dm_softirq_done()
295 static enum rq_end_io_ret end_clone_request(struct request *clone,  in end_clone_request()  argument
298 	struct dm_rq_target_io *tio = clone->end_io_data;  in end_clone_request()
309 		container_of(bio, struct dm_rq_clone_bio_info, clone);  in dm_rq_bio_constructor()
318 static int setup_clone(struct request *clone, struct request *rq,  in setup_clone()  argument
323 	r = blk_rq_prep_clone(clone, rq, &tio->md->mempools->bs, gfp_mask,  in setup_clone()
328 	clone->end_io = end_clone_request;  in setup_clone()
329 	clone->end_io_data = tio;  in setup_clone()
331 	tio->clone = clone;  in setup_clone()
341 	tio->clone = NULL;  in init_tio()
366 	struct request *clone = NULL;  in map_request()  local
369 	r = ti->type->clone_and_map_rq(ti, rq, &tio->info, &clone);  in map_request()
375 		if (setup_clone(clone, rq, tio, GFP_ATOMIC)) {  in map_request()
377 			ti->type->release_clone_rq(clone, &tio->info);  in map_request()
382 		trace_block_rq_remap(clone, disk_devt(dm_disk(md)),  in map_request()
384 		ret = blk_insert_cloned_request(clone);  in map_request()
390 			blk_rq_unprep_clone(clone);  in map_request()
391 			blk_mq_cleanup_rq(clone);  in map_request()
392 			tio->ti->type->release_clone_rq(clone, &tio->info);  in map_request()
393 			tio->clone = NULL;  in map_request()