476 			      struct blk_user_trace_setup *buts)  in do_blk_trace_setup()  argument
482 	if (!buts->buf_size || !buts->buf_nr)  in do_blk_trace_setup()
488 	strncpy(buts->name, name, BLKTRACE_BDEV_SIZE);  in do_blk_trace_setup()
489 	buts->name[BLKTRACE_BDEV_SIZE - 1] = '\0';  in do_blk_trace_setup()
495 	strreplace(buts->name, '/', '_');  in do_blk_trace_setup()
512 	dir = debugfs_lookup(buts->name, blk_debugfs_root);  in do_blk_trace_setup()
514 		bt->dir = dir = debugfs_create_dir(buts->name, blk_debugfs_root);  in do_blk_trace_setup()
532 	bt->rchan = relay_open("trace", dir, buts->buf_size,  in do_blk_trace_setup()
533 				buts->buf_nr, &blk_relay_callbacks, bt);  in do_blk_trace_setup()
537 	bt->act_mask = buts->act_mask;  in do_blk_trace_setup()
544 	if (buts->start_lba)  in do_blk_trace_setup()
545 		bt->start_lba = buts->start_lba;  in do_blk_trace_setup()
546 	if (buts->end_lba)  in do_blk_trace_setup()
547 		bt->end_lba = buts->end_lba;  in do_blk_trace_setup()
549 	bt->pid = buts->pid;  in do_blk_trace_setup()
570 	struct blk_user_trace_setup buts;  in __blk_trace_setup()  local
573 	ret = copy_from_user(&buts, arg, sizeof(buts));  in __blk_trace_setup()
577 	ret = do_blk_trace_setup(q, name, dev, bdev, &buts);  in __blk_trace_setup()
581 	if (copy_to_user(arg, &buts, sizeof(buts))) {  in __blk_trace_setup()
607 	struct blk_user_trace_setup buts;  in compat_blk_trace_setup()  local
614 	buts = (struct blk_user_trace_setup) {  in compat_blk_trace_setup()
623 	ret = do_blk_trace_setup(q, name, dev, bdev, &buts);  in compat_blk_trace_setup()
627 	if (copy_to_user(arg, &buts.name, ARRAY_SIZE(buts.name))) {  in compat_blk_trace_setup()