230 int btrfs_check_ioctl_vol_args_path(const struct btrfs_ioctl_vol_args *vol_args)  in btrfs_check_ioctl_vol_args_path()  argument
232 	if (memchr(vol_args->name, 0, sizeof(vol_args->name)) == NULL)  in btrfs_check_ioctl_vol_args_path()
964 	struct btrfs_ioctl_vol_args *vol_args;  in btrfs_ioctl_resize()  local
983 	vol_args = memdup_user(arg, sizeof(*vol_args));  in btrfs_ioctl_resize()
984 	if (IS_ERR(vol_args)) {  in btrfs_ioctl_resize()
985 		ret = PTR_ERR(vol_args);  in btrfs_ioctl_resize()
988 	ret = btrfs_check_ioctl_vol_args_path(vol_args);  in btrfs_ioctl_resize()
992 	sizestr = vol_args->name;  in btrfs_ioctl_resize()
1003 		devstr = vol_args->name;  in btrfs_ioctl_resize()
1104 	kfree(vol_args);  in btrfs_ioctl_resize()
1182 	struct btrfs_ioctl_vol_args *vol_args;  in btrfs_ioctl_snap_create()  local
1188 	vol_args = memdup_user(arg, sizeof(*vol_args));  in btrfs_ioctl_snap_create()
1189 	if (IS_ERR(vol_args))  in btrfs_ioctl_snap_create()
1190 		return PTR_ERR(vol_args);  in btrfs_ioctl_snap_create()
1191 	ret = btrfs_check_ioctl_vol_args_path(vol_args);  in btrfs_ioctl_snap_create()
1196 					vol_args->name, vol_args->fd, subvol,  in btrfs_ioctl_snap_create()
1200 	kfree(vol_args);  in btrfs_ioctl_snap_create()
1207 	struct btrfs_ioctl_vol_args_v2 *vol_args;  in btrfs_ioctl_snap_create_v2()  local
1215 	vol_args = memdup_user(arg, sizeof(*vol_args));  in btrfs_ioctl_snap_create_v2()
1216 	if (IS_ERR(vol_args))  in btrfs_ioctl_snap_create_v2()
1217 		return PTR_ERR(vol_args);  in btrfs_ioctl_snap_create_v2()
1218 	ret = btrfs_check_ioctl_vol_args2_subvol_name(vol_args);  in btrfs_ioctl_snap_create_v2()
1222 	if (vol_args->flags & ~BTRFS_SUBVOL_CREATE_ARGS_MASK) {  in btrfs_ioctl_snap_create_v2()
1227 	if (vol_args->flags & BTRFS_SUBVOL_RDONLY)  in btrfs_ioctl_snap_create_v2()
1229 	if (vol_args->flags & BTRFS_SUBVOL_QGROUP_INHERIT) {  in btrfs_ioctl_snap_create_v2()
1232 		if (vol_args->size < sizeof(*inherit) ||  in btrfs_ioctl_snap_create_v2()
1233 		    vol_args->size > PAGE_SIZE) {  in btrfs_ioctl_snap_create_v2()
1237 		inherit = memdup_user(vol_args->qgroup_inherit, vol_args->size);  in btrfs_ioctl_snap_create_v2()
1243 		ret = btrfs_qgroup_check_inherit(fs_info, inherit, vol_args->size);  in btrfs_ioctl_snap_create_v2()
1249 					vol_args->name, vol_args->fd, subvol,  in btrfs_ioctl_snap_create_v2()
1256 	kfree(vol_args);  in btrfs_ioctl_snap_create_v2()
2170 	struct btrfs_ioctl_vol_args *vol_args = NULL;  in btrfs_ioctl_snap_destroy()  local
2281 		vol_args = memdup_user(arg, sizeof(*vol_args));  in btrfs_ioctl_snap_destroy()
2282 		if (IS_ERR(vol_args))  in btrfs_ioctl_snap_destroy()
2283 			return PTR_ERR(vol_args);  in btrfs_ioctl_snap_destroy()
2285 		ret = btrfs_check_ioctl_vol_args_path(vol_args);  in btrfs_ioctl_snap_destroy()
2289 		subvol_name = vol_args->name;  in btrfs_ioctl_snap_destroy()
2376 	kfree(vol_args);  in btrfs_ioctl_snap_destroy()
2464 	struct btrfs_ioctl_vol_args *vol_args;  in btrfs_ioctl_add_dev()  local
2496 	vol_args = memdup_user(arg, sizeof(*vol_args));  in btrfs_ioctl_add_dev()
2497 	if (IS_ERR(vol_args)) {  in btrfs_ioctl_add_dev()
2498 		ret = PTR_ERR(vol_args);  in btrfs_ioctl_add_dev()
2502 	ret = btrfs_check_ioctl_vol_args_path(vol_args);  in btrfs_ioctl_add_dev()
2506 	ret = btrfs_init_new_device(fs_info, vol_args->name);  in btrfs_ioctl_add_dev()
2509 		btrfs_info(fs_info, "disk added %s", vol_args->name);  in btrfs_ioctl_add_dev()
2512 	kfree(vol_args);  in btrfs_ioctl_add_dev()
2526 	struct btrfs_ioctl_vol_args_v2 *vol_args;  in btrfs_ioctl_rm_dev_v2()  local
2534 	vol_args = memdup_user(arg, sizeof(*vol_args));  in btrfs_ioctl_rm_dev_v2()
2535 	if (IS_ERR(vol_args))  in btrfs_ioctl_rm_dev_v2()
2536 		return PTR_ERR(vol_args);  in btrfs_ioctl_rm_dev_v2()
2538 	if (vol_args->flags & ~BTRFS_DEVICE_REMOVE_ARGS_MASK) {  in btrfs_ioctl_rm_dev_v2()
2543 	ret = btrfs_check_ioctl_vol_args2_subvol_name(vol_args);  in btrfs_ioctl_rm_dev_v2()
2547 	if (vol_args->flags & BTRFS_DEVICE_SPEC_BY_ID) {  in btrfs_ioctl_rm_dev_v2()
2548 		args.devid = vol_args->devid;  in btrfs_ioctl_rm_dev_v2()
2549 	} else if (!strcmp("cancel", vol_args->name)) {  in btrfs_ioctl_rm_dev_v2()
2552 		ret = btrfs_get_dev_args_from_path(fs_info, &args, vol_args->name);  in btrfs_ioctl_rm_dev_v2()
2572 		if (vol_args->flags & BTRFS_DEVICE_SPEC_BY_ID)  in btrfs_ioctl_rm_dev_v2()
2574 					vol_args->devid);  in btrfs_ioctl_rm_dev_v2()
2577 					vol_args->name);  in btrfs_ioctl_rm_dev_v2()
2585 	kfree(vol_args);  in btrfs_ioctl_rm_dev_v2()
2594 	struct btrfs_ioctl_vol_args *vol_args;  in btrfs_ioctl_rm_dev()  local
2602 	vol_args = memdup_user(arg, sizeof(*vol_args));  in btrfs_ioctl_rm_dev()
2603 	if (IS_ERR(vol_args))  in btrfs_ioctl_rm_dev()
2604 		return PTR_ERR(vol_args);  in btrfs_ioctl_rm_dev()
2606 	ret = btrfs_check_ioctl_vol_args_path(vol_args);  in btrfs_ioctl_rm_dev()
2610 	if (!strcmp("cancel", vol_args->name)) {  in btrfs_ioctl_rm_dev()
2613 		ret = btrfs_get_dev_args_from_path(fs_info, &args, vol_args->name);  in btrfs_ioctl_rm_dev()
2627 			btrfs_info(fs_info, "disk deleted %s", vol_args->name);  in btrfs_ioctl_rm_dev()
2637 	kfree(vol_args);  in btrfs_ioctl_rm_dev()