1 files changed, 24 insertions, 16 deletions

diff --git a/fs/btrfs/qgroup.c b/fs/btrfs/qgroup.c
index b65015581744..5039686df6ae 100644
--- a/fs/btrfs/qgroup.c
+++ b/fs/btrfs/qgroup.c
@@ -1145,12 +1145,12 @@ int btrfs_qgroup_account_ref(struct btrfs_trans_handle *trans,
 
                 ulist_reinit(tmp);
                                                 /* XXX id not needed */
-                ulist_add(tmp, qg->qgroupid, (unsigned long)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
@@ -1158,7 +1158,7 @@ int btrfs_qgroup_account_ref(struct btrfs_trans_handle *trans,
 
                         list_for_each_entry(glist, &qg->groups, next_group) {
                                 ulist_add(tmp, glist->group->qgroupid,
-                                          (unsigned long)glist->group,
+                                          (u64)(uintptr_t)glist->group,
                                           GFP_ATOMIC);
                         }
                 }
@@ -1168,13 +1168,13 @@ int btrfs_qgroup_account_ref(struct btrfs_trans_handle *trans,
          * step 2: walk from the new root
          */
         ulist_reinit(tmp);
-        ulist_add(tmp, qgroup->qgroupid, (unsigned long)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;
@@ -1190,7 +1190,7 @@ int btrfs_qgroup_account_ref(struct btrfs_trans_handle *trans,
 
                 list_for_each_entry(glist, &qg->groups, next_group) {
                         ulist_add(tmp, glist->group->qgroupid,
-                                  (unsigned long)glist->group, GFP_ATOMIC);
+                                  (uintptr_t)glist->group, GFP_ATOMIC);
                 }
         }
 
@@ -1208,12 +1208,12 @@ int btrfs_qgroup_account_ref(struct btrfs_trans_handle *trans,
                         continue;
 
                 ulist_reinit(tmp);
-                ulist_add(tmp, qg->qgroupid, (unsigned long)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;
 
@@ -1225,7 +1225,7 @@ int btrfs_qgroup_account_ref(struct btrfs_trans_handle *trans,
 
                         list_for_each_entry(glist, &qg->groups, next_group) {
                                 ulist_add(tmp, glist->group->qgroupid,
-                                          (unsigned long)glist->group,
+                                          (uintptr_t)glist->group,
                                           GFP_ATOMIC);
                         }
                 }
@@ -1469,13 +1469,17 @@ int btrfs_qgroup_reserve(struct btrfs_root *root, u64 num_bytes)
          * be exceeded
          */
         ulist = ulist_alloc(GFP_ATOMIC);
-        ulist_add(ulist, qgroup->qgroupid, (unsigned long)qgroup, GFP_ATOMIC);
+        if (!ulist) {
+                ret = -ENOMEM;
+                goto out;
+        }
+        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 >
@@ -1489,7 +1493,7 @@ int btrfs_qgroup_reserve(struct btrfs_root *root, u64 num_bytes)
 
                 list_for_each_entry(glist, &qg->groups, next_group) {
                         ulist_add(ulist, glist->group->qgroupid,
-                                  (unsigned long)glist->group, GFP_ATOMIC);
+                                  (uintptr_t)glist->group, GFP_ATOMIC);
                 }
         }
         if (ret)
@@ -1502,7 +1506,7 @@ int btrfs_qgroup_reserve(struct btrfs_root *root, u64 num_bytes)
         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;
         }
@@ -1541,19 +1545,23 @@ void btrfs_qgroup_free(struct btrfs_root *root, u64 num_bytes)
                 goto out;
 
         ulist = ulist_alloc(GFP_ATOMIC);
-        ulist_add(ulist, qgroup->qgroupid, (unsigned long)qgroup, GFP_ATOMIC);
+        if (!ulist) {
+                btrfs_std_error(fs_info, -ENOMEM);
+                goto out;
+        }
+        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,
-                                  (unsigned long)glist->group, GFP_ATOMIC);
+                                  (uintptr_t)glist->group, GFP_ATOMIC);
                 }
         }