Btrfs: get/set for struct header fields

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

1 files changed, 4 insertions, 3 deletions

diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index c9201ec81fef..065e888d2c0b 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -15,9 +15,10 @@ int cache_max = 10000;
 
 static int check_tree_block(struct ctree_root *root, struct tree_buffer *buf)
 {
-        if (buf->blocknr != buf->node.header.blocknr)
+        if (buf->blocknr != btrfs_header_blocknr(&buf->node.header))
                 BUG();
-        if (root->node && buf->node.header.parentid != root->node->node.header.parentid)
+        if (root->node && btrfs_header_parentid(&buf->node.header) !=
+            btrfs_header_parentid(&root->node->node.header))
                 BUG();
         return 0;
 }
@@ -129,7 +130,7 @@ int write_tree_block(struct ctree_root *root, struct tree_buffer *buf)
         loff_t offset = blocknr * CTREE_BLOCKSIZE;
         int ret;
 
-        if (buf->blocknr != buf->node.header.blocknr)
+        if (buf->blocknr != btrfs_header_blocknr(&buf->node.header))
                 BUG();
         ret = pwrite(root->fp, &buf->node, CTREE_BLOCKSIZE, offset);
         if (ret != CTREE_BLOCKSIZE)