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    size_t len;

void vfs_unlink(ipc_callid_t rid, ipc_call_t *request)

{

    int lflag = IPC_GET_ARG1(*request);

    size_t len;

    ipc_callid_t callid;

    if (!ipc_data_write_receive(&callid, &len)) {

        ipc_answer_0(callid, EINVAL);

        ipc_answer_0(rid, EINVAL);

        return;

    }

    /*

     * Now we are on the verge of accepting the path.

     *

     * There is one optimization we could do in the future: copy the path

     * directly into the PLB using some kind of a callback.

     */

    char *path = malloc(len);

    if (!path) {

        ipc_answer_0(callid, ENOMEM);

        ipc_answer_0(rid, ENOMEM);

        return;

    }

    int rc;

    if ((rc = ipc_data_write_finalize(callid, path, len))) {

        ipc_answer_0(rid, rc);

        free(path);

        return;

    }

    rwlock_write_lock(&namespace_rwlock);

    lflag &= L_DIRECTORY;   /* sanitize lflag */

    vfs_lookup_res_t lr;

    rc = vfs_lookup_internal(path, len, lflag | L_DESTROY, &lr, NULL);

    free(path);

    if (rc != EOK) {

        rwlock_write_unlock(&namespace_rwlock);

        ipc_answer_0(rid, rc);

        return;

    }

    /*

     * The name has already been unlinked by vfs_lookup_internal().

     * We have to get and put the VFS node to ensure that it is

     * VFS_FREE'd after the last reference to it is dropped.

     */

    vfs_node_t *node = vfs_node_get(&lr);

    node->lnkcnt--;

    rwlock_write_unlock(&namespace_rwlock);

    vfs_node_put(node);

    ipc_answer_0(rid, EOK);

}