516 			      struct blk_user_trace_setup *buts)  in do_blk_trace_setup()  argument
524 	if (!buts->buf_size || !buts->buf_nr)  in do_blk_trace_setup()
527 	strncpy(buts->name, name, BLKTRACE_BDEV_SIZE);  in do_blk_trace_setup()
528 	buts->name[BLKTRACE_BDEV_SIZE - 1] = '\0';  in do_blk_trace_setup()
534 	strreplace(buts->name, '/', '_');  in do_blk_trace_setup()
543 			buts->name);  in do_blk_trace_setup()
569 		bt->dir = dir = debugfs_create_dir(buts->name, blk_debugfs_root);  in do_blk_trace_setup()
578 			buts->name);  in do_blk_trace_setup()
591 	bt->rchan = relay_open("trace", dir, buts->buf_size,  in do_blk_trace_setup()
592 				buts->buf_nr, &blk_relay_callbacks, bt);  in do_blk_trace_setup()
596 	bt->act_mask = buts->act_mask;  in do_blk_trace_setup()
603 	if (buts->start_lba)  in do_blk_trace_setup()
604 		bt->start_lba = buts->start_lba;  in do_blk_trace_setup()
605 	if (buts->end_lba)  in do_blk_trace_setup()
606 		bt->end_lba = buts->end_lba;  in do_blk_trace_setup()
608 	bt->pid = buts->pid;  in do_blk_trace_setup()
624 	struct blk_user_trace_setup buts;  in __blk_trace_setup()  local
627 	ret = copy_from_user(&buts, arg, sizeof(buts));  in __blk_trace_setup()
631 	ret = do_blk_trace_setup(q, name, dev, bdev, &buts);  in __blk_trace_setup()
635 	if (copy_to_user(arg, &buts, sizeof(buts))) {  in __blk_trace_setup()
661 	struct blk_user_trace_setup buts;  in compat_blk_trace_setup()  local
668 	buts = (struct blk_user_trace_setup) {  in compat_blk_trace_setup()
677 	ret = do_blk_trace_setup(q, name, dev, bdev, &buts);  in compat_blk_trace_setup()
681 	if (copy_to_user(arg, &buts.name, ARRAY_SIZE(buts.name))) {  in compat_blk_trace_setup()