424 	struct bio *overwrite_bio;  member
1140 	struct bio *bio = mg->overwrite_bio;  in overwrite()
1184 		if (mg->overwrite_bio) {  in mg_complete()
1188 				mg->overwrite_bio->bi_status = mg->k.input;  in mg_complete()
1190 				mg->overwrite_bio->bi_status = BLK_STS_IOERR;  in mg_complete()
1191 			bio_endio(mg->overwrite_bio);  in mg_complete()
1361 	if (mg->overwrite_bio) {  in mg_copy()
1367 		if (!optimisable_bio(mg->cache, mg->overwrite_bio, mg->op->oblock)) {  in mg_copy()
1371 			bool rb = bio_detain_shared(mg->cache, mg->op->oblock, mg->overwrite_bio);  in mg_copy()
1374 			mg->overwrite_bio = NULL;  in mg_copy()
1409 			    mg->overwrite_bio ?  READ_WRITE_LOCK_LEVEL : WRITE_LOCK_LEVEL,  in mg_lock_writes()
1440 	mg->overwrite_bio = bio;  in mg_start()
1463 	if (!success && mg->overwrite_bio)  in invalidate_complete()
1464 		bio_io_error(mg->overwrite_bio);  in invalidate_complete()
1518 	remap_to_origin_clear_discard(cache, mg->overwrite_bio, mg->invalidate_oblock);  in invalidate_remove()
1519 	mg->overwrite_bio = NULL;  in invalidate_remove()
1569 	mg->overwrite_bio = bio;  in invalidate_start()