btrfs: add forward declarations and headers, part 2
Do a cleanup in more headers:
- add forward declarations for types referenced by pointers
- add includes when types need them
This fixes potential compilation problems if the headers are reordered
or the missing includes are not provided indirectly.
Signed-off-by: David Sterba <dsterba@suse.com>
diff --git a/fs/btrfs/extent-tree.h b/fs/btrfs/extent-tree.h
index 2e06603..3fbcb77 100644
--- a/fs/btrfs/extent-tree.h
+++ b/fs/btrfs/extent-tree.h
@@ -3,11 +3,20 @@
#ifndef BTRFS_EXTENT_TREE_H
#define BTRFS_EXTENT_TREE_H
+#include <linux/types.h>
#include "misc.h"
#include "block-group.h"
+#include "locking.h"
+struct extent_buffer;
struct btrfs_free_cluster;
+struct btrfs_fs_info;
+struct btrfs_root;
+struct btrfs_path;
+struct btrfs_disk_key;
struct btrfs_delayed_ref_head;
+struct btrfs_delayed_ref_root;
+struct btrfs_extent_inline_ref;
enum btrfs_extent_allocation_policy {
BTRFS_EXTENT_ALLOC_CLUSTERED,
