Btrfs-progs: use rb-tree instead of extent cache tree for fs/file roots

Because the fs/file roots are not extents, so it is better to use rb-tree
to manage them. Fix it.

Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/ctree.h b/ctree.h
index 3fe14b0e..4347c8a1 100644
--- a/ctree.h
+++ b/ctree.h
@@ -909,7 +909,7 @@ struct btrfs_fs_info {
 	struct btrfs_root *dev_root;
 	struct btrfs_root *csum_root;
 
-	struct cache_tree fs_root_cache;
+	struct rb_root fs_root_tree;
 
 	/* the log root tree is a directory of all the other log roots */
 	struct btrfs_root *log_root_tree;
@@ -993,7 +993,7 @@ struct btrfs_root {
 
 	/* the dirty list is only used by non-reference counted roots */
 	struct list_head dirty_list;
-	struct cache_extent cache;
+	struct rb_node rb_node;
 };
 
 /*