hammer_recover_flush_buffers
void hammer_recover_flush_buffers(hammer_mount_t hmp,
hammer_recover_flush_buffers(hmp, root_volume,
hammer_recover_flush_buffers(hmp, root_volume, 1);
hammer_recover_flush_buffers(hmp, root_volume, -1);
hammer_recover_flush_buffers(hmp, rootvol, 1);
hammer_recover_flush_buffers(hmp, NULL, -1);