Method invalidate

src/client/FSCrypt.cc:514–550

}

int FSCryptKeyStore::invalidate(struct fscrypt_remove_key_arg* arg, int user)
{
  std::unique_lock rl{lock};

  ceph_fscrypt_key_identifier id;
  int r = id.init(arg->key_spec);
  if (r < 0) {
    return r;
  }

  FSCryptKeyHandlerRef kh;
  r = _find(id, kh);
  if (r < 0) {
    return r;
  }

  auto& users = kh->get_users();
  r = maybe_remove_user(arg, &users, user);
  if (r == -EUSERS) {
    r = 0;
    goto out;
  }

  kh->present = false;

  //do a final clean up
  if (!kh->present && kh->di->get_inodes().empty()) {
    kh->reset(++epoch, nullptr);
    m.erase(id);
  } else {
    r = 0;
    arg->removal_status_flags |= FSCRYPT_KEY_REMOVAL_STATUS_FLAG_FILES_BUSY;
  }

out:
  return r;
}

FSCryptKeyValidator::FSCryptKeyValidator(CephContext *cct, FSCryptKeyHandlerRef& kh, int64_t e) : cct(cct), handler(kh), epoch(e) {
}