Function libcryptsetup_rs_sys::crypt_reencrypt_run

pub unsafe extern "C" fn crypt_reencrypt_run(
    cd: *mut crypt_device,
    progress: Option<unsafe extern "C" fn(size: u64, offset: u64, usrptr: *mut c_void) -> c_int>,
    usrptr: *mut c_void
) -> c_int