unregister_filesystem
unregister_filesystem(&spufs_type);
unregister_filesystem(&dev_fs_type);
unregister_filesystem(&ibmasmfs_type);
unregister_filesystem(&ffs_fs_type);
unregister_filesystem (&gadgetfs_type);
unregister_filesystem(&xenfs_type);
unregister_filesystem(&v9fs_fs_type);
unregister_filesystem(&adfs_fs_type);
unregister_filesystem(&affs_fs_type);
unregister_filesystem(&afs_fs_type);
unregister_filesystem(&autofs_fs_type);
unregister_filesystem(&befs_fs_type);
unregister_filesystem(&bfs_fs_type);
unregister_filesystem(&bm_fs_type);
unregister_filesystem(&btrfs_fs_type);
unregister_filesystem(&test_type);
unregister_filesystem(&test_type);
unregister_filesystem(&ceph_fs_type);
err = unregister_filesystem(&coda_fs_type);
unregister_filesystem(&configfs_fs_type);
unregister_filesystem(&cramfs_fs_type);
unregister_filesystem(&ecryptfs_fs_type);
unregister_filesystem(&efivarfs_type);
unregister_filesystem(&efs_fs_type);
unregister_filesystem(&erofs_fs_type);
unregister_filesystem(&exfat_fs_type);
unregister_filesystem(&ext2_fs_type);
unregister_filesystem(&ext2_fs_type);
unregister_filesystem(&ext3_fs_type);
unregister_filesystem(&ext4_fs_type);
unregister_filesystem(&f2fs_fs_type);
unregister_filesystem(&msdos_fs_type);
unregister_filesystem(&vfat_fs_type);
EXPORT_SYMBOL(unregister_filesystem);
unregister_filesystem(&vxfs_fs_type);
unregister_filesystem(&fuse_ctl_fs_type);
unregister_filesystem(&fuseblk_fs_type);
unregister_filesystem(&fuse_fs_type);
unregister_filesystem(&fuse_fs_type);
unregister_filesystem(&virtio_fs_type);
unregister_filesystem(&gfs2_fs_type);
unregister_filesystem(&gfs2_fs_type);
unregister_filesystem(&gfs2meta_fs_type);
unregister_filesystem(&hfs_fs_type);
unregister_filesystem(&hfsplus_fs_type);
unregister_filesystem(&hostfs_type);
unregister_filesystem(&hpfs_fs_type);
(void)unregister_filesystem(&hugetlbfs_fs_type);
unregister_filesystem(&iso9660_fs_type);
unregister_filesystem(&jffs2_fs_type);
unregister_filesystem(&jfs_fs_type);
unregister_filesystem(&minix_fs_type);
unregister_filesystem(&nfs4_fs_type);
unregister_filesystem(&nfs_fs_type);
unregister_filesystem(&nfs_fs_type);
unregister_filesystem(&nfsd_fs_type);
unregister_filesystem(&nfsd_fs_type);
unregister_filesystem(&nilfs_fs_type);
unregister_filesystem(&ntfs_legacy_fs_type);
unregister_filesystem(&ntfs_fs_type);
unregister_filesystem(&dlmfs_fs_type);
unregister_filesystem(&ocfs2_fs_type);
unregister_filesystem(&omfs_fs_type);
unregister_filesystem(&openprom_fs_type);
unregister_filesystem(&orangefs_fs_type);
unregister_filesystem(&ovl_fs_type);
unregister_filesystem(&pipe_fs_type);
unregister_filesystem(&pstore_fs_type);
unregister_filesystem(&qnx4_fs_type);
unregister_filesystem(&qnx6_fs_type);
unregister_filesystem(&rdt_fs_type);
unregister_filesystem(&romfs_fs_type);
unregister_filesystem(&cifs_fs_type);
unregister_filesystem(&cifs_fs_type);
unregister_filesystem(&smb3_fs_type);
unregister_filesystem(&squashfs_fs_type);
unregister_filesystem(&ubifs_fs_type);
unregister_filesystem(&udf_fstype);
unregister_filesystem(&ufs_fs_type);
unregister_filesystem(&vboxsf_fs_type);
unregister_filesystem(&xfs_fs_type);
unregister_filesystem(&zonefs_type);
extern int unregister_filesystem(struct file_system_type *);
unregister_filesystem(&mqueue_fs_type);
unregister_filesystem(&shmem_fs_type);
unregister_filesystem(&sock_fs_type);
unregister_filesystem(&rpc_pipe_fs_type);