1583 	struct btrfs_ioctl_vol_args *vol_args;  in btrfs_ioctl_resize()  local
1604 	vol_args = memdup_user(arg, sizeof(*vol_args));  in btrfs_ioctl_resize()
1605 	if (IS_ERR(vol_args)) {  in btrfs_ioctl_resize()
1606 		ret = PTR_ERR(vol_args);  in btrfs_ioctl_resize()
1610 	vol_args->name[BTRFS_PATH_NAME_MAX] = '\0';  in btrfs_ioctl_resize()
1612 	sizestr = vol_args->name;  in btrfs_ioctl_resize()
1617 		devstr = vol_args->name;  in btrfs_ioctl_resize()
1709 	kfree(vol_args);  in btrfs_ioctl_resize()
1781 	struct btrfs_ioctl_vol_args *vol_args;  in btrfs_ioctl_snap_create()  local
1787 	vol_args = memdup_user(arg, sizeof(*vol_args));  in btrfs_ioctl_snap_create()
1788 	if (IS_ERR(vol_args))  in btrfs_ioctl_snap_create()
1789 		return PTR_ERR(vol_args);  in btrfs_ioctl_snap_create()
1790 	vol_args->name[BTRFS_PATH_NAME_MAX] = '\0';  in btrfs_ioctl_snap_create()
1792 	ret = btrfs_ioctl_snap_create_transid(file, vol_args->name,  in btrfs_ioctl_snap_create()
1793 					      vol_args->fd, subvol,  in btrfs_ioctl_snap_create()
1796 	kfree(vol_args);  in btrfs_ioctl_snap_create()
1803 	struct btrfs_ioctl_vol_args_v2 *vol_args;  in btrfs_ioctl_snap_create_v2()  local
1813 	vol_args = memdup_user(arg, sizeof(*vol_args));  in btrfs_ioctl_snap_create_v2()
1814 	if (IS_ERR(vol_args))  in btrfs_ioctl_snap_create_v2()
1815 		return PTR_ERR(vol_args);  in btrfs_ioctl_snap_create_v2()
1816 	vol_args->name[BTRFS_SUBVOL_NAME_MAX] = '\0';  in btrfs_ioctl_snap_create_v2()
1818 	if (vol_args->flags &  in btrfs_ioctl_snap_create_v2()
1825 	if (vol_args->flags & BTRFS_SUBVOL_CREATE_ASYNC)  in btrfs_ioctl_snap_create_v2()
1827 	if (vol_args->flags & BTRFS_SUBVOL_RDONLY)  in btrfs_ioctl_snap_create_v2()
1829 	if (vol_args->flags & BTRFS_SUBVOL_QGROUP_INHERIT) {  in btrfs_ioctl_snap_create_v2()
1830 		if (vol_args->size > PAGE_SIZE) {  in btrfs_ioctl_snap_create_v2()
1834 		inherit = memdup_user(vol_args->qgroup_inherit, vol_args->size);  in btrfs_ioctl_snap_create_v2()
1841 	ret = btrfs_ioctl_snap_create_transid(file, vol_args->name,  in btrfs_ioctl_snap_create_v2()
1842 					      vol_args->fd, subvol, ptr,  in btrfs_ioctl_snap_create_v2()
1856 	kfree(vol_args);  in btrfs_ioctl_snap_create_v2()
2820 	struct btrfs_ioctl_vol_args *vol_args;  in btrfs_ioctl_snap_destroy()  local
2827 	vol_args = memdup_user(arg, sizeof(*vol_args));  in btrfs_ioctl_snap_destroy()
2828 	if (IS_ERR(vol_args))  in btrfs_ioctl_snap_destroy()
2829 		return PTR_ERR(vol_args);  in btrfs_ioctl_snap_destroy()
2831 	vol_args->name[BTRFS_PATH_NAME_MAX] = '\0';  in btrfs_ioctl_snap_destroy()
2832 	namelen = strlen(vol_args->name);  in btrfs_ioctl_snap_destroy()
2833 	if (strchr(vol_args->name, '/') ||  in btrfs_ioctl_snap_destroy()
2834 	    strncmp(vol_args->name, "..", namelen) == 0) {  in btrfs_ioctl_snap_destroy()
2847 	dentry = lookup_one_len(vol_args->name, parent, namelen);  in btrfs_ioctl_snap_destroy()
2917 	kfree(vol_args);  in btrfs_ioctl_snap_destroy()
2995 	struct btrfs_ioctl_vol_args *vol_args;  in btrfs_ioctl_add_dev()  local
3004 	vol_args = memdup_user(arg, sizeof(*vol_args));  in btrfs_ioctl_add_dev()
3005 	if (IS_ERR(vol_args)) {  in btrfs_ioctl_add_dev()
3006 		ret = PTR_ERR(vol_args);  in btrfs_ioctl_add_dev()
3010 	vol_args->name[BTRFS_PATH_NAME_MAX] = '\0';  in btrfs_ioctl_add_dev()
3011 	ret = btrfs_init_new_device(fs_info, vol_args->name);  in btrfs_ioctl_add_dev()
3014 		btrfs_info(fs_info, "disk added %s", vol_args->name);  in btrfs_ioctl_add_dev()
3016 	kfree(vol_args);  in btrfs_ioctl_add_dev()
3026 	struct btrfs_ioctl_vol_args_v2 *vol_args;  in btrfs_ioctl_rm_dev_v2()  local
3036 	vol_args = memdup_user(arg, sizeof(*vol_args));  in btrfs_ioctl_rm_dev_v2()
3037 	if (IS_ERR(vol_args)) {  in btrfs_ioctl_rm_dev_v2()
3038 		ret = PTR_ERR(vol_args);  in btrfs_ioctl_rm_dev_v2()
3043 	if (vol_args->flags & ~BTRFS_VOL_ARG_V2_FLAGS_SUPPORTED) {  in btrfs_ioctl_rm_dev_v2()
3053 	if (vol_args->flags & BTRFS_DEVICE_SPEC_BY_ID) {  in btrfs_ioctl_rm_dev_v2()
3054 		ret = btrfs_rm_device(fs_info, NULL, vol_args->devid);  in btrfs_ioctl_rm_dev_v2()
3056 		vol_args->name[BTRFS_SUBVOL_NAME_MAX] = '\0';  in btrfs_ioctl_rm_dev_v2()
3057 		ret = btrfs_rm_device(fs_info, vol_args->name, 0);  in btrfs_ioctl_rm_dev_v2()
3062 		if (vol_args->flags & BTRFS_DEVICE_SPEC_BY_ID)  in btrfs_ioctl_rm_dev_v2()
3064 					vol_args->devid);  in btrfs_ioctl_rm_dev_v2()
3067 					vol_args->name);  in btrfs_ioctl_rm_dev_v2()
3070 	kfree(vol_args);  in btrfs_ioctl_rm_dev_v2()
3080 	struct btrfs_ioctl_vol_args *vol_args;  in btrfs_ioctl_rm_dev()  local
3095 	vol_args = memdup_user(arg, sizeof(*vol_args));  in btrfs_ioctl_rm_dev()
3096 	if (IS_ERR(vol_args)) {  in btrfs_ioctl_rm_dev()
3097 		ret = PTR_ERR(vol_args);  in btrfs_ioctl_rm_dev()
3101 	vol_args->name[BTRFS_PATH_NAME_MAX] = '\0';  in btrfs_ioctl_rm_dev()
3102 	ret = btrfs_rm_device(fs_info, vol_args->name, 0);  in btrfs_ioctl_rm_dev()
3105 		btrfs_info(fs_info, "disk deleted %s", vol_args->name);  in btrfs_ioctl_rm_dev()
3106 	kfree(vol_args);  in btrfs_ioctl_rm_dev()