btrfs: move relocation prototypes into relocation.h

Move these out of ctree.h into relocation.h to cut down on code in
ctree.h

Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
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/backref.c

@@ -18,6 +18,7 @@
 #include "fs.h"
 #include "accessors.h"
 #include "extent-tree.h"
+#include "relocation.h"
 
 /* Just arbitrary numbers so we can be sure one of these happened. */
 #define BACKREF_FOUND_SHARED     6

fs/btrfs/ctree.c

@@ -21,6 +21,7 @@
 #include "fs.h"
 #include "accessors.h"
 #include "extent-tree.h"
+#include "relocation.h"
 
 static struct kmem_cache *btrfs_path_cachep;
 

fs/btrfs/ctree.h

@@ -732,26 +732,6 @@ static inline unsigned long get_eb_page_index(unsigned long offset)
 #define EXPORT_FOR_TESTS
 #endif
 
-/* relocation.c */
-int btrfs_relocate_block_group(struct btrfs_fs_info *fs_info, u64 group_start);
-int btrfs_init_reloc_root(struct btrfs_trans_handle *trans,
-			  struct btrfs_root *root);
-int btrfs_update_reloc_root(struct btrfs_trans_handle *trans,
-			    struct btrfs_root *root);
-int btrfs_recover_relocation(struct btrfs_fs_info *fs_info);
-int btrfs_reloc_clone_csums(struct btrfs_inode *inode, u64 file_pos, u64 len);
-int btrfs_reloc_cow_block(struct btrfs_trans_handle *trans,
-			  struct btrfs_root *root, struct extent_buffer *buf,
-			  struct extent_buffer *cow);
-void btrfs_reloc_pre_snapshot(struct btrfs_pending_snapshot *pending,
-			      u64 *bytes_to_reserve);
-int btrfs_reloc_post_snapshot(struct btrfs_trans_handle *trans,
-			      struct btrfs_pending_snapshot *pending);
-int btrfs_should_cancel_balance(struct btrfs_fs_info *fs_info);
-struct btrfs_root *find_reloc_root(struct btrfs_fs_info *fs_info,
-				   u64 bytenr);
-int btrfs_should_ignore_reloc_root(struct btrfs_root *root);
-
 /* scrub.c */
 int btrfs_scrub_dev(struct btrfs_fs_info *fs_info, u64 devid, u64 start,
 		    u64 end, struct btrfs_scrub_progress *progress,

fs/btrfs/disk-io.c

@@ -49,6 +49,7 @@
 #include "root-tree.h"
 #include "defrag.h"
 #include "uuid-tree.h"
+#include "relocation.h"
 
 #define BTRFS_SUPER_FLAG_SUPP	(BTRFS_HEADER_FLAG_WRITTEN |\
 				 BTRFS_HEADER_FLAG_RELOC |\

fs/btrfs/inode.c

@@ -66,6 +66,7 @@
 #include "ioctl.h"
 #include "file.h"
 #include "acl.h"
+#include "relocation.h"
 
 struct btrfs_iget_args {
 	u64 ino;

fs/btrfs/relocation.c

@@ -33,6 +33,7 @@
 #include "extent-tree.h"
 #include "root-tree.h"
 #include "file-item.h"
+#include "relocation.h"
 
 /*
  * Relocation overview

fs/btrfs/relocation.h

@@ -0,0 +1,23 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+#ifndef BTRFS_RELOCATION_H
+#define BTRFS_RELOCATION_H
+
+int btrfs_relocate_block_group(struct btrfs_fs_info *fs_info, u64 group_start);
+int btrfs_init_reloc_root(struct btrfs_trans_handle *trans, struct btrfs_root *root);
+int btrfs_update_reloc_root(struct btrfs_trans_handle *trans,
+			    struct btrfs_root *root);
+int btrfs_recover_relocation(struct btrfs_fs_info *fs_info);
+int btrfs_reloc_clone_csums(struct btrfs_inode *inode, u64 file_pos, u64 len);
+int btrfs_reloc_cow_block(struct btrfs_trans_handle *trans,
+			  struct btrfs_root *root, struct extent_buffer *buf,
+			  struct extent_buffer *cow);
+void btrfs_reloc_pre_snapshot(struct btrfs_pending_snapshot *pending,
+			      u64 *bytes_to_reserve);
+int btrfs_reloc_post_snapshot(struct btrfs_trans_handle *trans,
+			      struct btrfs_pending_snapshot *pending);
+int btrfs_should_cancel_balance(struct btrfs_fs_info *fs_info);
+struct btrfs_root *find_reloc_root(struct btrfs_fs_info *fs_info, u64 bytenr);
+int btrfs_should_ignore_reloc_root(struct btrfs_root *root);
+
+#endif

fs/btrfs/transaction.c

@@ -32,6 +32,7 @@
 #include "dir-item.h"
 #include "uuid-tree.h"
 #include "ioctl.h"
+#include "relocation.h"
 
 static struct kmem_cache *btrfs_trans_handle_cachep;
 

fs/btrfs/volumes.c

@@ -37,6 +37,7 @@
 #include "accessors.h"
 #include "uuid-tree.h"
 #include "ioctl.h"
+#include "relocation.h"
 
 static struct bio_set btrfs_bioset;