fscrypt_encrypt_symlink
err = fscrypt_encrypt_symlink(req->r_new_inode, dest, len, &osd_link);
err = fscrypt_encrypt_symlink(inode, symname, len, &disk_link);
err = fscrypt_encrypt_symlink(inode, symname, len, &disk_link);
err = fscrypt_encrypt_symlink(inode, symname, len, &disk_link);