fs: btrfs: Crossport struct btrfs_root to ctree.h

Crossport struct btrfs_root to ctree.h from btrfs-progs, with write
related members deleted.

Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: Marek Behún <marek.behun@nic.cz>

diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index 0aa6b49a65d2dfd22b86eba962922bec6e5e303c..e658c88aeeef7543a33495fd5c12cf47b2e243de 100644 (file)
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -69,6 +69,23 @@ enum btrfs_tree_block_status {
        BTRFS_TREE_BLOCK_INVALID_OFFSETS,
 };
 
+struct btrfs_root {
+       struct extent_buffer *node;
+       struct btrfs_root_item root_item;
+       struct btrfs_key root_key;
+       struct btrfs_fs_info *fs_info;
+       u64 objectid;
+       u64 last_trans;
+
+       int ref_cows;
+       int track_dirty;
+
+       u32 type;
+       u64 last_inode_alloc;
+
+       struct rb_node rb_node;
+};
+
 struct btrfs_device;
 struct btrfs_fs_devices;
 struct btrfs_fs_info {