cluster_list_add_tail  452 mm/swapfile.c  	cluster_list_add_tail(&si->discard_clusters, si->cluster_info, idx);
cluster_list_add_tail  462 mm/swapfile.c  	cluster_list_add_tail(&si->free_clusters, ci, idx);
cluster_list_add_tail 3077 mm/swapfile.c  			cluster_list_add_tail(&p->free_clusters, cluster_info,