21 	struct request *orig, *clone;  member
79 static void end_clone_bio(struct bio *clone)  in end_clone_bio()  argument
82 		container_of(clone, struct dm_rq_clone_bio_info, clone);  in end_clone_bio()
85 	blk_status_t error = clone->bi_status;  in end_clone_bio()
86 	bool is_last = !clone->bi_next;  in end_clone_bio()
88 	bio_put(clone);  in end_clone_bio()
157 static void dm_end_request(struct request *clone, blk_status_t error)  in dm_end_request()  argument
159 	struct dm_rq_target_io *tio = clone->end_io_data;  in dm_end_request()
163 	blk_rq_unprep_clone(clone);  in dm_end_request()
164 	tio->ti->type->release_clone_rq(clone, NULL);  in dm_end_request()
195 	if (tio->clone) {  in dm_requeue_original_request()
196 		blk_rq_unprep_clone(tio->clone);  in dm_requeue_original_request()
197 		tio->ti->type->release_clone_rq(tio->clone, NULL);  in dm_requeue_original_request()
204 static void dm_done(struct request *clone, blk_status_t error, bool mapped)  in dm_done()  argument
207 	struct dm_rq_target_io *tio = clone->end_io_data;  in dm_done()
214 			r = rq_end_io(tio->ti, clone, error, &tio->info);  in dm_done()
218 		if (req_op(clone) == REQ_OP_DISCARD &&  in dm_done()
219 		    !clone->q->limits.max_discard_sectors)  in dm_done()
221 		else if (req_op(clone) == REQ_OP_WRITE_SAME &&  in dm_done()
222 			 !clone->q->limits.max_write_same_sectors)  in dm_done()
224 		else if (req_op(clone) == REQ_OP_WRITE_ZEROES &&  in dm_done()
225 			 !clone->q->limits.max_write_zeroes_sectors)  in dm_done()
232 		dm_end_request(clone, error);  in dm_done()
258 	struct request *clone = tio->clone;  in dm_softirq_done()  local
260 	if (!clone) {  in dm_softirq_done()
272 	dm_done(clone, tio->error, mapped);  in dm_softirq_done()
300 static void end_clone_request(struct request *clone, blk_status_t error)  in end_clone_request()  argument
302 	struct dm_rq_target_io *tio = clone->end_io_data;  in end_clone_request()
307 static blk_status_t dm_dispatch_clone_request(struct request *clone, struct request *rq)  in dm_dispatch_clone_request()  argument
311 	if (blk_queue_io_stat(clone->q))  in dm_dispatch_clone_request()
312 		clone->rq_flags |= RQF_IO_STAT;  in dm_dispatch_clone_request()
314 	clone->start_time_ns = ktime_get_ns();  in dm_dispatch_clone_request()
315 	r = blk_insert_cloned_request(clone->q, clone);  in dm_dispatch_clone_request()
327 		container_of(bio, struct dm_rq_clone_bio_info, clone);  in dm_rq_bio_constructor()
336 static int setup_clone(struct request *clone, struct request *rq,  in setup_clone()  argument
341 	r = blk_rq_prep_clone(clone, rq, &tio->md->bs, gfp_mask,  in setup_clone()
346 	clone->end_io = end_clone_request;  in setup_clone()
347 	clone->end_io_data = tio;  in setup_clone()
349 	tio->clone = clone;  in setup_clone()
359 	tio->clone = NULL;  in init_tio()
384 	struct request *clone = NULL;  in map_request()  local
387 	r = ti->type->clone_and_map_rq(ti, rq, &tio->info, &clone);  in map_request()
393 		if (setup_clone(clone, rq, tio, GFP_ATOMIC)) {  in map_request()
395 			ti->type->release_clone_rq(clone, &tio->info);  in map_request()
400 		trace_block_rq_remap(clone->q, clone, disk_devt(dm_disk(md)),  in map_request()
402 		ret = dm_dispatch_clone_request(clone, rq);  in map_request()
404 			blk_rq_unprep_clone(clone);  in map_request()
405 			blk_mq_cleanup_rq(clone);  in map_request()
406 			tio->ti->type->release_clone_rq(clone, &tio->info);  in map_request()
407 			tio->clone = NULL;  in map_request()