}
                        if (!ret) {
                                ret = ulist_add(parents, eb->start,
-                                               (u64)eie, GFP_NOFS);
+                                               (uintptr_t)eie, GFP_NOFS);
                                if (ret < 0)
                                        break;
                                if (!extent_item_pos) {
                ULIST_ITER_INIT(&uiter);
                node = ulist_next(parents, &uiter);
                ref->parent = node ? node->val : 0;
-               ref->inode_list =
-                       node ? (struct extent_inode_elem *)node->aux : 0;
+               ref->inode_list = node ?
+                       (struct extent_inode_elem *)(uintptr_t)node->aux : 0;
 
                /* additional parents require new refs being added here */
                while ((node = ulist_next(parents, &uiter))) {
                        }
                        memcpy(new_ref, ref, sizeof(*ref));
                        new_ref->parent = node->val;
-                       new_ref->inode_list =
-                                       (struct extent_inode_elem *)node->aux;
+                       new_ref->inode_list = (struct extent_inode_elem *)
+                                                       (uintptr_t)node->aux;
                        list_add(&new_ref->list, &ref->list);
                }
                ulist_reinit(parents);
                                free_extent_buffer(eb);
                        }
                        ret = ulist_add_merge(refs, ref->parent,
-                                             (u64)ref->inode_list,
+                                             (uintptr_t)ref->inode_list,
                                              (u64 *)&eie, GFP_NOFS);
                        if (!ret && extent_item_pos) {
                                /*
        while ((node = ulist_next(blocks, &uiter))) {
                if (!node->aux)
                        continue;
-               eie = (struct extent_inode_elem *)node->aux;
+               eie = (struct extent_inode_elem *)(uintptr_t)node->aux;
                for (; eie; eie = eie_next) {
                        eie_next = eie->next;
                        kfree(eie);
                while (!ret && (root_node = ulist_next(roots, &root_uiter))) {
                        pr_debug("root %llu references leaf %llu, data list "
                                 "%#llx\n", root_node->val, ref_node->val,
-                                ref_node->aux);
-                       ret = iterate_leaf_refs(
-                               (struct extent_inode_elem *)ref_node->aux,
-                               root_node->val, extent_item_objectid,
-                               iterate, ctx);
+                                (long long)ref_node->aux);
+                       ret = iterate_leaf_refs((struct extent_inode_elem *)
+                                               (uintptr_t)ref_node->aux,
+                                               root_node->val,
+                                               extent_item_objectid,
+                                               iterate, ctx);
                }
                ulist_free(roots);
                roots = NULL;
 
 
                ulist_reinit(tmp);
                                                /* XXX id not needed */
-               ulist_add(tmp, qg->qgroupid, (u64)qg, GFP_ATOMIC);
+               ulist_add(tmp, qg->qgroupid, (u64)(uintptr_t)qg, GFP_ATOMIC);
                ULIST_ITER_INIT(&tmp_uiter);
                while ((tmp_unode = ulist_next(tmp, &tmp_uiter))) {
                        struct btrfs_qgroup_list *glist;
 
-                       qg = (struct btrfs_qgroup *)tmp_unode->aux;
+                       qg = (struct btrfs_qgroup *)(uintptr_t)tmp_unode->aux;
                        if (qg->refcnt < seq)
                                qg->refcnt = seq + 1;
                        else
 
                        list_for_each_entry(glist, &qg->groups, next_group) {
                                ulist_add(tmp, glist->group->qgroupid,
-                                         (u64)glist->group,
+                                         (u64)(uintptr_t)glist->group,
                                          GFP_ATOMIC);
                        }
                }
         * step 2: walk from the new root
         */
        ulist_reinit(tmp);
-       ulist_add(tmp, qgroup->qgroupid, (u64)qgroup, GFP_ATOMIC);
+       ulist_add(tmp, qgroup->qgroupid, (uintptr_t)qgroup, GFP_ATOMIC);
        ULIST_ITER_INIT(&uiter);
        while ((unode = ulist_next(tmp, &uiter))) {
                struct btrfs_qgroup *qg;
                struct btrfs_qgroup_list *glist;
 
-               qg = (struct btrfs_qgroup *)unode->aux;
+               qg = (struct btrfs_qgroup *)(uintptr_t)unode->aux;
                if (qg->refcnt < seq) {
                        /* not visited by step 1 */
                        qg->rfer += sgn * node->num_bytes;
 
                list_for_each_entry(glist, &qg->groups, next_group) {
                        ulist_add(tmp, glist->group->qgroupid,
-                                 (u64)glist->group, GFP_ATOMIC);
+                                 (uintptr_t)glist->group, GFP_ATOMIC);
                }
        }
 
                        continue;
 
                ulist_reinit(tmp);
-               ulist_add(tmp, qg->qgroupid, (u64)qg, GFP_ATOMIC);
+               ulist_add(tmp, qg->qgroupid, (uintptr_t)qg, GFP_ATOMIC);
                ULIST_ITER_INIT(&tmp_uiter);
                while ((tmp_unode = ulist_next(tmp, &tmp_uiter))) {
                        struct btrfs_qgroup_list *glist;
 
-                       qg = (struct btrfs_qgroup *)tmp_unode->aux;
+                       qg = (struct btrfs_qgroup *)(uintptr_t)tmp_unode->aux;
                        if (qg->tag == seq)
                                continue;
 
 
                        list_for_each_entry(glist, &qg->groups, next_group) {
                                ulist_add(tmp, glist->group->qgroupid,
-                                         (u64)glist->group,
+                                         (uintptr_t)glist->group,
                                          GFP_ATOMIC);
                        }
                }
         * be exceeded
         */
        ulist = ulist_alloc(GFP_ATOMIC);
-       ulist_add(ulist, qgroup->qgroupid, (u64)qgroup, GFP_ATOMIC);
+       ulist_add(ulist, qgroup->qgroupid, (uintptr_t)qgroup, GFP_ATOMIC);
        ULIST_ITER_INIT(&uiter);
        while ((unode = ulist_next(ulist, &uiter))) {
                struct btrfs_qgroup *qg;
                struct btrfs_qgroup_list *glist;
 
-               qg = (struct btrfs_qgroup *)unode->aux;
+               qg = (struct btrfs_qgroup *)(uintptr_t)unode->aux;
 
                if ((qg->lim_flags & BTRFS_QGROUP_LIMIT_MAX_RFER) &&
                    qg->reserved + qg->rfer + num_bytes >
 
                list_for_each_entry(glist, &qg->groups, next_group) {
                        ulist_add(ulist, glist->group->qgroupid,
-                                 (u64)glist->group, GFP_ATOMIC);
+                                 (uintptr_t)glist->group, GFP_ATOMIC);
                }
        }
        if (ret)
        while ((unode = ulist_next(ulist, &uiter))) {
                struct btrfs_qgroup *qg;
 
-               qg = (struct btrfs_qgroup *)unode->aux;
+               qg = (struct btrfs_qgroup *)(uintptr_t)unode->aux;
 
                qg->reserved += num_bytes;
        }
                goto out;
 
        ulist = ulist_alloc(GFP_ATOMIC);
-       ulist_add(ulist, qgroup->qgroupid, (u64)qgroup, GFP_ATOMIC);
+       ulist_add(ulist, qgroup->qgroupid, (uintptr_t)qgroup, GFP_ATOMIC);
        ULIST_ITER_INIT(&uiter);
        while ((unode = ulist_next(ulist, &uiter))) {
                struct btrfs_qgroup *qg;
                struct btrfs_qgroup_list *glist;
 
-               qg = (struct btrfs_qgroup *)unode->aux;
+               qg = (struct btrfs_qgroup *)(uintptr_t)unode->aux;
 
                qg->reserved -= num_bytes;
 
                list_for_each_entry(glist, &qg->groups, next_group) {
                        ulist_add(ulist, glist->group->qgroupid,
-                                 (u64)glist->group, GFP_ATOMIC);
+                                 (uintptr_t)glist->group, GFP_ATOMIC);
                }
        }