[PATCH 1/3] btrfs: move struct btrfs_tree_parent_check out of disk-io.h

[Christoph Hellwig <hch@lst.de>]

Move struct btrfs_tree_parent_check out of disk-io.h so that volumes.h
an various .c files don't have to include disk-io.h just for it.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 fs/btrfs/backref.c      |  1 +
 fs/btrfs/disk-io.h      | 30 +-----------------------------
 fs/btrfs/parent-check.h | 36 ++++++++++++++++++++++++++++++++++++
 fs/btrfs/print-tree.c   |  1 +
 fs/btrfs/qgroup.c       |  1 +
 fs/btrfs/tree-mod-log.c |  1 +
 fs/btrfs/volumes.h      |  2 +-
 7 files changed, 42 insertions(+), 30 deletions(-)
 create mode 100644 fs/btrfs/parent-check.h

diff --git a/fs/btrfs/backref.c b/fs/btrfs/backref.c
index 55c072ba67471..9496aa93a8dcc 100644
--- a/fs/btrfs/backref.c
+++ b/fs/btrfs/backref.c
@@ -19,6 +19,7 @@
 #include "accessors.h"
 #include "extent-tree.h"
 #include "relocation.h"
+#include "parent-check.h"
 
 /* Just arbitrary numbers so we can be sure one of these happened. */
 #define BACKREF_FOUND_SHARED     6
diff --git a/fs/btrfs/disk-io.h b/fs/btrfs/disk-io.h
index 03fe4154ffb83..363935cfc0844 100644
--- a/fs/btrfs/disk-io.h
+++ b/fs/btrfs/disk-io.h
@@ -25,37 +25,9 @@ static inline u64 btrfs_sb_offset(int mirror)
 	return BTRFS_SUPER_INFO_OFFSET;
 }
 
-/* All the extra info needed to verify the parentness of a tree block. */
-struct btrfs_tree_parent_check {
-	/*
-	 * The owner check against the tree block.
-	 *
-	 * Can be 0 to skip the owner check.
-	 */
-	u64 owner_root;
-
-	/*
-	 * Expected transid, can be 0 to skip the check, but such skip
-	 * should only be utlized for backref walk related code.
-	 */
-	u64 transid;
-
-	/*
-	 * The expected first key.
-	 *
-	 * This check can be skipped if @has_first_key is false, such skip
-	 * can happen for case where we don't have the parent node key,
-	 * e.g. reading the tree root, doing backref walk.
-	 */
-	struct btrfs_key first_key;
-	bool has_first_key;
-
-	/* The expected level. Should always be set. */
-	u8 level;
-};
-
 struct btrfs_device;
 struct btrfs_fs_devices;
+struct btrfs_tree_parent_check;
 
 void btrfs_check_leaked_roots(struct btrfs_fs_info *fs_info);
 void btrfs_init_fs_info(struct btrfs_fs_info *fs_info);
diff --git a/fs/btrfs/parent-check.h b/fs/btrfs/parent-check.h
new file mode 100644
index 0000000000000..333f23ea28e25
--- /dev/null
+++ b/fs/btrfs/parent-check.h
@@ -0,0 +1,36 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef BTRFS_PARENT_CHECK_H
+#define BTRFS_PARENT_CHECK_H
+
+#include <uapi/linux/btrfs_tree.h>
+
+/* All the extra info needed to verify the parentness of a tree block. */
+struct btrfs_tree_parent_check {
+	/*
+	 * The owner check against the tree block.
+	 *
+	 * Can be 0 to skip the owner check.
+	 */
+	u64 owner_root;
+
+	/*
+	 * Expected transid, can be 0 to skip the check, but such skip
+	 * should only be utlized for backref walk related code.
+	 */
+	u64 transid;
+
+	/*
+	 * The expected first key.
+	 *
+	 * This check can be skipped if @has_first_key is false, such skip
+	 * can happen for case where we don't have the parent node key,
+	 * e.g. reading the tree root, doing backref walk.
+	 */
+	struct btrfs_key first_key;
+	bool has_first_key;
+
+	/* The expected level. Should always be set. */
+	u8 level;
+};
+
+#endif /* BTRFS_PARENT_CHECK_H */
diff --git a/fs/btrfs/print-tree.c b/fs/btrfs/print-tree.c
index 1469aa55ad482..00d5da5f3c333 100644
--- a/fs/btrfs/print-tree.c
+++ b/fs/btrfs/print-tree.c
@@ -8,6 +8,7 @@
 #include "disk-io.h"
 #include "print-tree.h"
 #include "accessors.h"
+#include "parent-check.h"
 
 struct root_name_map {
 	u64 id;
diff --git a/fs/btrfs/qgroup.c b/fs/btrfs/qgroup.c
index 05e79f7b4433a..365482ad0421b 100644
--- a/fs/btrfs/qgroup.c
+++ b/fs/btrfs/qgroup.c
@@ -28,6 +28,7 @@
 #include "accessors.h"
 #include "extent-tree.h"
 #include "root-tree.h"
+#include "parent-check.h"
 
 /*
  * Helpers to access qgroup reservation
diff --git a/fs/btrfs/tree-mod-log.c b/fs/btrfs/tree-mod-log.c
index 779ad44d285f8..5b91a2a88a398 100644
--- a/fs/btrfs/tree-mod-log.c
+++ b/fs/btrfs/tree-mod-log.c
@@ -5,6 +5,7 @@
 #include "disk-io.h"
 #include "fs.h"
 #include "accessors.h"
+#include "parent-check.h"
 
 struct tree_mod_root {
 	u64 logical;
diff --git a/fs/btrfs/volumes.h b/fs/btrfs/volumes.h
index efa6a3d48cd8d..bcf544849b6d5 100644
--- a/fs/btrfs/volumes.h
+++ b/fs/btrfs/volumes.h
@@ -11,7 +11,7 @@
 #include <linux/btrfs.h>
 #include "async-thread.h"
 #include "messages.h"
-#include "disk-io.h"
+#include "parent-check.h"
 
 #define BTRFS_MAX_DATA_CHUNK_SIZE	(10ULL * SZ_1G)
 
-- 
2.30.2