btrfs: move root tree prototypes to their own header

Move all the root-tree.c prototypes to root-tree.h, and then update all
the necessary files to include the new header.
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

fs/btrfs/ctree.h

@@ -495,12 +495,6 @@ static inline gfp_t btrfs_alloc_write_mask(struct address_space *mapping)
 	return mapping_gfp_constraint(mapping, ~__GFP_FS);
 }
 
-int btrfs_subvolume_reserve_metadata(struct btrfs_root *root,
-				     struct btrfs_block_rsv *rsv,
-				     int nitems, bool use_global_rsv);
-void btrfs_subvolume_release_metadata(struct btrfs_root *root,
-				      struct btrfs_block_rsv *rsv);
-
 int btrfs_error_unpin_extent_range(struct btrfs_fs_info *fs_info,
 				   u64 start, u64 end);
 int btrfs_discard_extent(struct btrfs_fs_info *fs_info, u64 bytenr,
@@ -695,32 +689,6 @@ int btrfs_drop_subtree(struct btrfs_trans_handle *trans,
 			struct extent_buffer *node,
 			struct extent_buffer *parent);
 
-/* root-item.c */
-int btrfs_add_root_ref(struct btrfs_trans_handle *trans, u64 root_id,
-		       u64 ref_id, u64 dirid, u64 sequence,
-		       const struct fscrypt_str *name);
-int btrfs_del_root_ref(struct btrfs_trans_handle *trans, u64 root_id,
-		       u64 ref_id, u64 dirid, u64 *sequence,
-		       const struct fscrypt_str *name);
-int btrfs_del_root(struct btrfs_trans_handle *trans,
-		   const struct btrfs_key *key);
-int btrfs_insert_root(struct btrfs_trans_handle *trans, struct btrfs_root *root,
-		      const struct btrfs_key *key,
-		      struct btrfs_root_item *item);
-int __must_check btrfs_update_root(struct btrfs_trans_handle *trans,
-				   struct btrfs_root *root,
-				   struct btrfs_key *key,
-				   struct btrfs_root_item *item);
-int btrfs_find_root(struct btrfs_root *root, const struct btrfs_key *search_key,
-		    struct btrfs_path *path, struct btrfs_root_item *root_item,
-		    struct btrfs_key *root_key);
-int btrfs_find_orphan_roots(struct btrfs_fs_info *fs_info);
-void btrfs_set_root_node(struct btrfs_root_item *item,
-			 struct extent_buffer *node);
-void btrfs_check_and_init_root_item(struct btrfs_root_item *item);
-void btrfs_update_root_times(struct btrfs_trans_handle *trans,
-			     struct btrfs_root *root);
-
 /* uuid-tree.c */
 int btrfs_uuid_tree_add(struct btrfs_trans_handle *trans, u8 *uuid, u8 type,
 			u64 subid);

fs/btrfs/disk-io.c

@@ -46,6 +46,7 @@
 #include "fs.h"
 #include "accessors.h"
 #include "extent-tree.h"
+#include "root-tree.h"
 
 #define BTRFS_SUPER_FLAG_SUPP	(BTRFS_HEADER_FLAG_WRITTEN |\
 				 BTRFS_HEADER_FLAG_RELOC |\

fs/btrfs/extent-tree.c

@@ -39,6 +39,7 @@
 #include "fs.h"
 #include "accessors.h"
 #include "extent-tree.h"
+#include "root-tree.h"
 
 #undef SCRAMBLE_DELAYED_REFS
 

fs/btrfs/free-space-tree.c

@@ -15,6 +15,7 @@
 #include "fs.h"
 #include "accessors.h"
 #include "extent-tree.h"
+#include "root-tree.h"
 
 static int __add_block_group_free_space(struct btrfs_trans_handle *trans,
 					struct btrfs_block_group *block_group,

fs/btrfs/inode.c

@@ -58,6 +58,7 @@
 #include "fs.h"
 #include "accessors.h"
 #include "extent-tree.h"
+#include "root-tree.h"
 
 struct btrfs_iget_args {
 	u64 ino;

fs/btrfs/ioctl.c

@@ -53,6 +53,7 @@
 #include "fs.h"
 #include "accessors.h"
 #include "extent-tree.h"
+#include "root-tree.h"
 
 #ifdef CONFIG_64BIT
 /* If we have a 32-bit userspace and 64-bit kernel, then the UAPI

fs/btrfs/qgroup.c

@@ -27,6 +27,7 @@
 #include "fs.h"
 #include "accessors.h"
 #include "extent-tree.h"
+#include "root-tree.h"
 
 /*
  * Helpers to access qgroup reservation

fs/btrfs/relocation.c

@@ -31,6 +31,7 @@
 #include "fs.h"
 #include "accessors.h"
 #include "extent-tree.h"
+#include "root-tree.h"
 
 /*
  * Relocation overview

fs/btrfs/root-tree.c

@@ -14,6 +14,7 @@
 #include "qgroup.h"
 #include "space-info.h"
 #include "accessors.h"
+#include "root-tree.h"
 
 /*
  * Read a root item from the tree. In case we detect a root item smaller then

fs/btrfs/root-tree.h

+/* SPDX-License-Identifier: GPL-2.0 */
+
+#ifndef BTRFS_ROOT_TREE_H
+#define BTRFS_ROOT_TREE_H
+
+int btrfs_subvolume_reserve_metadata(struct btrfs_root *root,
+				     struct btrfs_block_rsv *rsv,
+				     int nitems, bool use_global_rsv);
+void btrfs_subvolume_release_metadata(struct btrfs_root *root,
+				      struct btrfs_block_rsv *rsv);
+int btrfs_add_root_ref(struct btrfs_trans_handle *trans, u64 root_id,
+		       u64 ref_id, u64 dirid, u64 sequence,
+		       const struct fscrypt_str *name);
+int btrfs_del_root_ref(struct btrfs_trans_handle *trans, u64 root_id,
+		       u64 ref_id, u64 dirid, u64 *sequence,
+		       const struct fscrypt_str *name);
+int btrfs_del_root(struct btrfs_trans_handle *trans, const struct btrfs_key *key);
+int btrfs_insert_root(struct btrfs_trans_handle *trans, struct btrfs_root *root,
+		      const struct btrfs_key *key,
+		      struct btrfs_root_item *item);
+int __must_check btrfs_update_root(struct btrfs_trans_handle *trans,
+				   struct btrfs_root *root,
+				   struct btrfs_key *key,
+				   struct btrfs_root_item *item);
+int btrfs_find_root(struct btrfs_root *root, const struct btrfs_key *search_key,
+		    struct btrfs_path *path, struct btrfs_root_item *root_item,
+		    struct btrfs_key *root_key);
+int btrfs_find_orphan_roots(struct btrfs_fs_info *fs_info);
+void btrfs_set_root_node(struct btrfs_root_item *item,
+			 struct extent_buffer *node);
+void btrfs_check_and_init_root_item(struct btrfs_root_item *item);
+void btrfs_update_root_times(struct btrfs_trans_handle *trans, struct btrfs_root *root);
+
+#endif

fs/btrfs/transaction.c

@@ -27,6 +27,7 @@
 #include "fs.h"
 #include "accessors.h"
 #include "extent-tree.h"
+#include "root-tree.h"
 
 static struct kmem_cache *btrfs_trans_handle_cachep;
 

fs/btrfs/tree-log.c

@@ -24,6 +24,7 @@
 #include "fs.h"
 #include "accessors.h"
 #include "extent-tree.h"
+#include "root-tree.h"
 
 #define MAX_CONFLICT_INODES 10