btrfs: move basic block_group definitions to their own header
This is prep work for moving all of the block group cache code into its
own file.
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: David Sterba <dsterba@suse.com>
[ minor comment updates ]
Signed-off-by: David Sterba <dsterba@suse.com>
diff --git a/fs/btrfs/relocation.c b/fs/btrfs/relocation.c
index 7ec632d..2f0e25a 100644
--- a/fs/btrfs/relocation.c
+++ b/fs/btrfs/relocation.c
@@ -21,6 +21,7 @@
#include "qgroup.h"
#include "print-tree.h"
#include "delalloc-space.h"
+#include "block-group.h"
/*
* backref_node, mapping_node and tree_block start with this