1610 	struct btrfs_ioctl_vol_args *vol_args;  in btrfs_ioctl_resize()  local
1631 	vol_args = memdup_user(arg, sizeof(*vol_args));  in btrfs_ioctl_resize()
1632 	if (IS_ERR(vol_args)) {  in btrfs_ioctl_resize()
1633 		ret = PTR_ERR(vol_args);  in btrfs_ioctl_resize()
1637 	vol_args->name[BTRFS_PATH_NAME_MAX] = '\0';  in btrfs_ioctl_resize()
1639 	sizestr = vol_args->name;  in btrfs_ioctl_resize()
1644 		devstr = vol_args->name;  in btrfs_ioctl_resize()
1736 	kfree(vol_args);  in btrfs_ioctl_resize()
1808 	struct btrfs_ioctl_vol_args *vol_args;  in btrfs_ioctl_snap_create()  local
1814 	vol_args = memdup_user(arg, sizeof(*vol_args));  in btrfs_ioctl_snap_create()
1815 	if (IS_ERR(vol_args))  in btrfs_ioctl_snap_create()
1816 		return PTR_ERR(vol_args);  in btrfs_ioctl_snap_create()
1817 	vol_args->name[BTRFS_PATH_NAME_MAX] = '\0';  in btrfs_ioctl_snap_create()
1819 	ret = btrfs_ioctl_snap_create_transid(file, vol_args->name,  in btrfs_ioctl_snap_create()
1820 					      vol_args->fd, subvol,  in btrfs_ioctl_snap_create()
1823 	kfree(vol_args);  in btrfs_ioctl_snap_create()
1830 	struct btrfs_ioctl_vol_args_v2 *vol_args;  in btrfs_ioctl_snap_create_v2()  local
1840 	vol_args = memdup_user(arg, sizeof(*vol_args));  in btrfs_ioctl_snap_create_v2()
1841 	if (IS_ERR(vol_args))  in btrfs_ioctl_snap_create_v2()
1842 		return PTR_ERR(vol_args);  in btrfs_ioctl_snap_create_v2()
1843 	vol_args->name[BTRFS_SUBVOL_NAME_MAX] = '\0';  in btrfs_ioctl_snap_create_v2()
1845 	if (vol_args->flags &  in btrfs_ioctl_snap_create_v2()
1852 	if (vol_args->flags & BTRFS_SUBVOL_CREATE_ASYNC)  in btrfs_ioctl_snap_create_v2()
1854 	if (vol_args->flags & BTRFS_SUBVOL_RDONLY)  in btrfs_ioctl_snap_create_v2()
1856 	if (vol_args->flags & BTRFS_SUBVOL_QGROUP_INHERIT) {  in btrfs_ioctl_snap_create_v2()
1859 		if (vol_args->size < sizeof(*inherit) ||  in btrfs_ioctl_snap_create_v2()
1860 		    vol_args->size > PAGE_SIZE) {  in btrfs_ioctl_snap_create_v2()
1864 		inherit = memdup_user(vol_args->qgroup_inherit, vol_args->size);  in btrfs_ioctl_snap_create_v2()
1879 		if (vol_args->size != struct_size(inherit, qgroups, nums)) {  in btrfs_ioctl_snap_create_v2()
1885 	ret = btrfs_ioctl_snap_create_transid(file, vol_args->name,  in btrfs_ioctl_snap_create_v2()
1886 					      vol_args->fd, subvol, ptr,  in btrfs_ioctl_snap_create_v2()
1900 	kfree(vol_args);  in btrfs_ioctl_snap_create_v2()
2881 	struct btrfs_ioctl_vol_args *vol_args;  in btrfs_ioctl_snap_destroy()  local
2888 	vol_args = memdup_user(arg, sizeof(*vol_args));  in btrfs_ioctl_snap_destroy()
2889 	if (IS_ERR(vol_args))  in btrfs_ioctl_snap_destroy()
2890 		return PTR_ERR(vol_args);  in btrfs_ioctl_snap_destroy()
2892 	vol_args->name[BTRFS_PATH_NAME_MAX] = '\0';  in btrfs_ioctl_snap_destroy()
2893 	namelen = strlen(vol_args->name);  in btrfs_ioctl_snap_destroy()
2894 	if (strchr(vol_args->name, '/') ||  in btrfs_ioctl_snap_destroy()
2895 	    strncmp(vol_args->name, "..", namelen) == 0) {  in btrfs_ioctl_snap_destroy()
2908 	dentry = lookup_one_len(vol_args->name, parent, namelen);  in btrfs_ioctl_snap_destroy()
2978 	kfree(vol_args);  in btrfs_ioctl_snap_destroy()
3056 	struct btrfs_ioctl_vol_args *vol_args;  in btrfs_ioctl_add_dev()  local
3065 	vol_args = memdup_user(arg, sizeof(*vol_args));  in btrfs_ioctl_add_dev()
3066 	if (IS_ERR(vol_args)) {  in btrfs_ioctl_add_dev()
3067 		ret = PTR_ERR(vol_args);  in btrfs_ioctl_add_dev()
3071 	vol_args->name[BTRFS_PATH_NAME_MAX] = '\0';  in btrfs_ioctl_add_dev()
3072 	ret = btrfs_init_new_device(fs_info, vol_args->name);  in btrfs_ioctl_add_dev()
3075 		btrfs_info(fs_info, "disk added %s", vol_args->name);  in btrfs_ioctl_add_dev()
3077 	kfree(vol_args);  in btrfs_ioctl_add_dev()
3087 	struct btrfs_ioctl_vol_args_v2 *vol_args;  in btrfs_ioctl_rm_dev_v2()  local
3097 	vol_args = memdup_user(arg, sizeof(*vol_args));  in btrfs_ioctl_rm_dev_v2()
3098 	if (IS_ERR(vol_args)) {  in btrfs_ioctl_rm_dev_v2()
3099 		ret = PTR_ERR(vol_args);  in btrfs_ioctl_rm_dev_v2()
3104 	if (vol_args->flags & ~BTRFS_VOL_ARG_V2_FLAGS_SUPPORTED) {  in btrfs_ioctl_rm_dev_v2()
3114 	if (vol_args->flags & BTRFS_DEVICE_SPEC_BY_ID) {  in btrfs_ioctl_rm_dev_v2()
3115 		ret = btrfs_rm_device(fs_info, NULL, vol_args->devid);  in btrfs_ioctl_rm_dev_v2()
3117 		vol_args->name[BTRFS_SUBVOL_NAME_MAX] = '\0';  in btrfs_ioctl_rm_dev_v2()
3118 		ret = btrfs_rm_device(fs_info, vol_args->name, 0);  in btrfs_ioctl_rm_dev_v2()
3123 		if (vol_args->flags & BTRFS_DEVICE_SPEC_BY_ID)  in btrfs_ioctl_rm_dev_v2()
3125 					vol_args->devid);  in btrfs_ioctl_rm_dev_v2()
3128 					vol_args->name);  in btrfs_ioctl_rm_dev_v2()
3131 	kfree(vol_args);  in btrfs_ioctl_rm_dev_v2()
3141 	struct btrfs_ioctl_vol_args *vol_args;  in btrfs_ioctl_rm_dev()  local
3156 	vol_args = memdup_user(arg, sizeof(*vol_args));  in btrfs_ioctl_rm_dev()
3157 	if (IS_ERR(vol_args)) {  in btrfs_ioctl_rm_dev()
3158 		ret = PTR_ERR(vol_args);  in btrfs_ioctl_rm_dev()
3162 	vol_args->name[BTRFS_PATH_NAME_MAX] = '\0';  in btrfs_ioctl_rm_dev()
3163 	ret = btrfs_rm_device(fs_info, vol_args->name, 0);  in btrfs_ioctl_rm_dev()
3166 		btrfs_info(fs_info, "disk deleted %s", vol_args->name);  in btrfs_ioctl_rm_dev()
3167 	kfree(vol_args);  in btrfs_ioctl_rm_dev()