Btrfs: struct item endian fixes

Signed-off-by: Chris Mason <chris.mason@oracle.com>

1 files changed, 7 insertions, 5 deletions

diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 475e72215964..fdf95bd07f90 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -40,8 +40,8 @@ static int inc_block_ref(struct ctree_root *root, u64 blocknr)
                 BUG();
         BUG_ON(ret != 0);
         l = &path.nodes[0]->leaf;
-        item = (struct extent_item *)(l->data +
-                                      l->items[path.slots[0]].offset);
+        item = (struct extent_item *)(l->data + btrfs_item_offset(l->items +
+                                                                path.slots[0]));
         item->refs++;
 
         BUG_ON(list_empty(&path.nodes[0]->dirty));
@@ -67,7 +67,8 @@ static int lookup_block_ref(struct ctree_root *root, u64 blocknr, u32 *refs)
                 BUG();
         l = &path.nodes[0]->leaf;
         item = (struct extent_item *)(l->data +
-                                      l->items[path.slots[0]].offset);
+                                      btrfs_item_offset(l->items +
+                                                        path.slots[0]));
         *refs = item->refs;
         release_path(root->extent_root, &path);
         return 0;
@@ -144,7 +145,7 @@ int __free_extent(struct ctree_root *root, u64 blocknr, u64 num_blocks)
         struct btrfs_key key;
         struct ctree_root *extent_root = root->extent_root;
         int ret;
-        struct item *item;
+        struct btrfs_item *item;
         struct extent_item *ei;
         struct btrfs_key ins;
 
@@ -162,7 +163,8 @@ int __free_extent(struct ctree_root *root, u64 blocknr, u64 num_blocks)
                 BUG();
         }
         item = path.nodes[0]->leaf.items + path.slots[0];
-        ei = (struct extent_item *)(path.nodes[0]->leaf.data + item->offset);
+        ei = (struct extent_item *)(path.nodes[0]->leaf.data +
+                                    btrfs_item_offset(item));
         BUG_ON(ei->refs == 0);
         ei->refs--;
         if (ei->refs == 0) {