Btrfs: struct item endian fixes

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

1 files changed, 21 insertions, 15 deletions

diff --git a/fs/btrfs/mkfs.c b/fs/btrfs/mkfs.c
index 5290423343f..0f77babcd30 100644
--- a/fs/btrfs/mkfs.c
+++ b/fs/btrfs/mkfs.c
@@ -14,7 +14,7 @@ int mkfs(int fd)
 {
 	struct ctree_root_info info[2];
 	struct leaf empty_leaf;
-	struct item item;
+	struct btrfs_item item;
 	struct extent_item extent_item;
 	int ret;
 
@@ -45,31 +45,37 @@ int mkfs(int fd)
 	btrfs_set_header_nritems(&empty_leaf.header, 3);
 
 	/* item1, reserve blocks 0-16 */
-	item.key.objectid = cpu_to_le64(0);
-	item.key.offset = cpu_to_le64(17);
-	item.key.flags = cpu_to_le32(0);
-	item.offset = LEAF_DATA_SIZE - sizeof(struct extent_item);
-	item.size = sizeof(struct extent_item);
+	btrfs_set_key_objectid(&item.key, 0);
+	btrfs_set_key_offset(&item.key, 17);
+	btrfs_set_key_flags(&item.key, 0);
+	btrfs_set_item_offset(&item,
+			      LEAF_DATA_SIZE - sizeof(struct extent_item));
+	btrfs_set_item_size(&item, sizeof(struct extent_item));
 	extent_item.refs = 1;
 	extent_item.owner = 0;
 	memcpy(empty_leaf.items, &item, sizeof(item));
-	memcpy(empty_leaf.data + item.offset, &extent_item, item.size);
+	memcpy(empty_leaf.data + btrfs_item_offset(&item), &extent_item,
+		btrfs_item_size(&item));
 
 	/* item2, give block 17 to the root */
-	item.key.objectid = cpu_to_le64(17);
-	item.key.offset = cpu_to_le64(1);
-	item.offset = LEAF_DATA_SIZE - sizeof(struct extent_item) * 2;
+	btrfs_set_key_objectid(&item.key, 17);
+	btrfs_set_key_offset(&item.key, 1);
+	btrfs_set_item_offset(&item,
+			      LEAF_DATA_SIZE - sizeof(struct extent_item) * 2);
 	extent_item.owner = 1;
 	memcpy(empty_leaf.items + 1, &item, sizeof(item));
-	memcpy(empty_leaf.data + item.offset, &extent_item, item.size);
+	memcpy(empty_leaf.data + btrfs_item_offset(&item), &extent_item,
+		btrfs_item_size(&item));
 
 	/* item3, give block 18 for the extent root */
-	item.key.objectid = cpu_to_le64(18);
-	item.key.offset = cpu_to_le64(1);
-	item.offset = LEAF_DATA_SIZE - sizeof(struct extent_item) * 3;
+	btrfs_set_key_objectid(&item.key, 18);
+	btrfs_set_key_offset(&item.key, 1);
+	btrfs_set_item_offset(&item,
+			      LEAF_DATA_SIZE - sizeof(struct extent_item) * 3);
 	extent_item.owner = 2;
 	memcpy(empty_leaf.items + 2, &item, sizeof(item));
-	memcpy(empty_leaf.data + item.offset, &extent_item, item.size);
+	memcpy(empty_leaf.data + btrfs_item_offset(&item), &extent_item,
+		btrfs_item_size(&item));
 	ret = pwrite(fd, &empty_leaf, sizeof(empty_leaf), 18 * CTREE_BLOCKSIZE);
 	if (ret != sizeof(empty_leaf))
 		return -1;