21 	struct request *orig, *clone;  member
82 static void end_clone_bio(struct bio *clone)  in end_clone_bio()  argument
85 		container_of(clone, struct dm_rq_clone_bio_info, clone);  in end_clone_bio()
88 	blk_status_t error = clone->bi_status;  in end_clone_bio()
89 	bool is_last = !clone->bi_next;  in end_clone_bio()
91 	bio_put(clone);  in end_clone_bio()
164 static void dm_end_request(struct request *clone, blk_status_t error)  in dm_end_request()  argument
166 	struct dm_rq_target_io *tio = clone->end_io_data;  in dm_end_request()
170 	blk_rq_unprep_clone(clone);  in dm_end_request()
171 	tio->ti->type->release_clone_rq(clone, NULL);  in dm_end_request()
202 	if (tio->clone) {  in dm_requeue_original_request()
203 		blk_rq_unprep_clone(tio->clone);  in dm_requeue_original_request()
204 		tio->ti->type->release_clone_rq(tio->clone, NULL);  in dm_requeue_original_request()
211 static void dm_done(struct request *clone, blk_status_t error, bool mapped)  in dm_done()  argument
214 	struct dm_rq_target_io *tio = clone->end_io_data;  in dm_done()
221 			r = rq_end_io(tio->ti, clone, error, &tio->info);  in dm_done()
225 		if (req_op(clone) == REQ_OP_DISCARD &&  in dm_done()
226 		    !clone->q->limits.max_discard_sectors)  in dm_done()
228 		else if (req_op(clone) == REQ_OP_WRITE_SAME &&  in dm_done()
229 			 !clone->q->limits.max_write_same_sectors)  in dm_done()
231 		else if (req_op(clone) == REQ_OP_WRITE_ZEROES &&  in dm_done()
232 			 !clone->q->limits.max_write_zeroes_sectors)  in dm_done()
239 		dm_end_request(clone, error);  in dm_done()
265 	struct request *clone = tio->clone;  in dm_softirq_done()  local
267 	if (!clone) {  in dm_softirq_done()
279 	dm_done(clone, tio->error, mapped);  in dm_softirq_done()
306 static void end_clone_request(struct request *clone, blk_status_t error)  in end_clone_request()  argument
308 	struct dm_rq_target_io *tio = clone->end_io_data;  in end_clone_request()
313 static blk_status_t dm_dispatch_clone_request(struct request *clone, struct request *rq)  in dm_dispatch_clone_request()  argument
317 	if (blk_queue_io_stat(clone->q))  in dm_dispatch_clone_request()
318 		clone->rq_flags |= RQF_IO_STAT;  in dm_dispatch_clone_request()
320 	clone->start_time_ns = ktime_get_ns();  in dm_dispatch_clone_request()
321 	r = blk_insert_cloned_request(clone->q, clone);  in dm_dispatch_clone_request()
333 		container_of(bio, struct dm_rq_clone_bio_info, clone);  in dm_rq_bio_constructor()
342 static int setup_clone(struct request *clone, struct request *rq,  in setup_clone()  argument
347 	r = blk_rq_prep_clone(clone, rq, &tio->md->bs, gfp_mask,  in setup_clone()
352 	clone->end_io = end_clone_request;  in setup_clone()
353 	clone->end_io_data = tio;  in setup_clone()
355 	tio->clone = clone;  in setup_clone()
365 	tio->clone = NULL;  in init_tio()
390 	struct request *clone = NULL;  in map_request()  local
393 	r = ti->type->clone_and_map_rq(ti, rq, &tio->info, &clone);  in map_request()
399 		if (setup_clone(clone, rq, tio, GFP_ATOMIC)) {  in map_request()
401 			ti->type->release_clone_rq(clone, &tio->info);  in map_request()
406 		trace_block_rq_remap(clone->q, clone, disk_devt(dm_disk(md)),  in map_request()
408 		ret = dm_dispatch_clone_request(clone, rq);  in map_request()
410 			blk_rq_unprep_clone(clone);  in map_request()
411 			blk_mq_cleanup_rq(clone);  in map_request()
412 			tio->ti->type->release_clone_rq(clone, &tio->info);  in map_request()
413 			tio->clone = NULL;  in map_request()