btrfs: move extent-tree helpers into their own header file

Move all the extent tree related prototypes to extent-tree.h out of
ctree.h, and then go include it everywhere needed so everything
compiles.
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

@@ -17,6 +17,7 @@
 #include "tree-mod-log.h"
 #include "fs.h"
 #include "accessors.h"
+#include "extent-tree.h"
 
 /* Just arbitrary numbers so we can be sure one of these happened. */
 #define BACKREF_FOUND_SHARED     6

fs/btrfs/block-group.c

@@ -19,6 +19,7 @@
 #include "zoned.h"
 #include "fs.h"
 #include "accessors.h"
+#include "extent-tree.h"
 
 #ifdef CONFIG_BTRFS_DEBUG
 int btrfs_should_fragment_free_space(struct btrfs_block_group *block_group)

fs/btrfs/ctree.c

@@ -20,6 +20,7 @@
 #include "tree-checker.h"
 #include "fs.h"
 #include "accessors.h"
+#include "extent-tree.h"
 
 static struct kmem_cache *btrfs_path_cachep;
 

fs/btrfs/ctree.h

@@ -495,78 +495,6 @@ static inline gfp_t btrfs_alloc_write_mask(struct address_space *mapping)
 	return mapping_gfp_constraint(mapping, ~__GFP_FS);
 }
 
-/* extent-tree.c */
-
-enum btrfs_inline_ref_type {
-	BTRFS_REF_TYPE_INVALID,
-	BTRFS_REF_TYPE_BLOCK,
-	BTRFS_REF_TYPE_DATA,
-	BTRFS_REF_TYPE_ANY,
-};
-
-int btrfs_get_extent_inline_ref_type(const struct extent_buffer *eb,
-				     struct btrfs_extent_inline_ref *iref,
-				     enum btrfs_inline_ref_type is_data);
-u64 hash_extent_data_ref(u64 root_objectid, u64 owner, u64 offset);
-
-
-int btrfs_add_excluded_extent(struct btrfs_fs_info *fs_info,
-			      u64 start, u64 num_bytes);
-void btrfs_free_excluded_extents(struct btrfs_block_group *cache);
-int btrfs_run_delayed_refs(struct btrfs_trans_handle *trans,
-			   unsigned long count);
-void btrfs_cleanup_ref_head_accounting(struct btrfs_fs_info *fs_info,
-				  struct btrfs_delayed_ref_root *delayed_refs,
-				  struct btrfs_delayed_ref_head *head);
-int btrfs_lookup_data_extent(struct btrfs_fs_info *fs_info, u64 start, u64 len);
-int btrfs_lookup_extent_info(struct btrfs_trans_handle *trans,
-			     struct btrfs_fs_info *fs_info, u64 bytenr,
-			     u64 offset, int metadata, u64 *refs, u64 *flags);
-int btrfs_pin_extent(struct btrfs_trans_handle *trans, u64 bytenr, u64 num,
-		     int reserved);
-int btrfs_pin_extent_for_log_replay(struct btrfs_trans_handle *trans,
-				    u64 bytenr, u64 num_bytes);
-int btrfs_exclude_logged_extents(struct extent_buffer *eb);
-int btrfs_cross_ref_exist(struct btrfs_root *root,
-			  u64 objectid, u64 offset, u64 bytenr, bool strict,
-			  struct btrfs_path *path);
-struct extent_buffer *btrfs_alloc_tree_block(struct btrfs_trans_handle *trans,
-					     struct btrfs_root *root,
-					     u64 parent, u64 root_objectid,
-					     const struct btrfs_disk_key *key,
-					     int level, u64 hint,
-					     u64 empty_size,
-					     enum btrfs_lock_nesting nest);
-void btrfs_free_tree_block(struct btrfs_trans_handle *trans,
-			   u64 root_id,
-			   struct extent_buffer *buf,
-			   u64 parent, int last_ref);
-int btrfs_alloc_reserved_file_extent(struct btrfs_trans_handle *trans,
-				     struct btrfs_root *root, u64 owner,
-				     u64 offset, u64 ram_bytes,
-				     struct btrfs_key *ins);
-int btrfs_alloc_logged_file_extent(struct btrfs_trans_handle *trans,
-				   u64 root_objectid, u64 owner, u64 offset,
-				   struct btrfs_key *ins);
-int btrfs_reserve_extent(struct btrfs_root *root, u64 ram_bytes, u64 num_bytes,
-			 u64 min_alloc_size, u64 empty_size, u64 hint_byte,
-			 struct btrfs_key *ins, int is_data, int delalloc);
-int btrfs_inc_ref(struct btrfs_trans_handle *trans, struct btrfs_root *root,
-		  struct extent_buffer *buf, int full_backref);
-int btrfs_dec_ref(struct btrfs_trans_handle *trans, struct btrfs_root *root,
-		  struct extent_buffer *buf, int full_backref);
-int btrfs_set_disk_extent_flags(struct btrfs_trans_handle *trans,
-				struct extent_buffer *eb, u64 flags, int level);
-int btrfs_free_extent(struct btrfs_trans_handle *trans, struct btrfs_ref *ref);
-
-int btrfs_free_reserved_extent(struct btrfs_fs_info *fs_info,
-			       u64 start, u64 len, int delalloc);
-int btrfs_pin_reserved_extent(struct btrfs_trans_handle *trans, u64 start,
-			      u64 len);
-int btrfs_finish_extent_commit(struct btrfs_trans_handle *trans);
-int btrfs_inc_extent_ref(struct btrfs_trans_handle *trans,
-			 struct btrfs_ref *generic_ref);
-
 int btrfs_subvolume_reserve_metadata(struct btrfs_root *root,
 				     struct btrfs_block_rsv *rsv,
 				     int nitems, bool use_global_rsv);

fs/btrfs/disk-io.c

@@ -45,6 +45,7 @@
 #include "subpage.h"
 #include "fs.h"
 #include "accessors.h"
+#include "extent-tree.h"
 
 #define BTRFS_SUPER_FLAG_SUPP	(BTRFS_HEADER_FLAG_WRITTEN |\
 				 BTRFS_HEADER_FLAG_RELOC |\

fs/btrfs/extent-tree.c

@@ -38,6 +38,7 @@
 #include "dev-replace.h"
 #include "fs.h"
 #include "accessors.h"
+#include "extent-tree.h"
 
 #undef SCRAMBLE_DELAYED_REFS
 

fs/btrfs/extent-tree.h

+/* SPDX-License-Identifier: GPL-2.0 */
+
+#ifndef BTRFS_EXTENT_TREE_H
+#define BTRFS_EXTENT_TREE_H
+
+enum btrfs_inline_ref_type {
+	BTRFS_REF_TYPE_INVALID,
+	BTRFS_REF_TYPE_BLOCK,
+	BTRFS_REF_TYPE_DATA,
+	BTRFS_REF_TYPE_ANY,
+};
+
+int btrfs_get_extent_inline_ref_type(const struct extent_buffer *eb,
+				     struct btrfs_extent_inline_ref *iref,
+				     enum btrfs_inline_ref_type is_data);
+u64 hash_extent_data_ref(u64 root_objectid, u64 owner, u64 offset);
+
+int btrfs_add_excluded_extent(struct btrfs_fs_info *fs_info,
+			      u64 start, u64 num_bytes);
+void btrfs_free_excluded_extents(struct btrfs_block_group *cache);
+int btrfs_run_delayed_refs(struct btrfs_trans_handle *trans, unsigned long count);
+void btrfs_cleanup_ref_head_accounting(struct btrfs_fs_info *fs_info,
+				  struct btrfs_delayed_ref_root *delayed_refs,
+				  struct btrfs_delayed_ref_head *head);
+int btrfs_lookup_data_extent(struct btrfs_fs_info *fs_info, u64 start, u64 len);
+int btrfs_lookup_extent_info(struct btrfs_trans_handle *trans,
+			     struct btrfs_fs_info *fs_info, u64 bytenr,
+			     u64 offset, int metadata, u64 *refs, u64 *flags);
+int btrfs_pin_extent(struct btrfs_trans_handle *trans, u64 bytenr, u64 num,
+		     int reserved);
+int btrfs_pin_extent_for_log_replay(struct btrfs_trans_handle *trans,
+				    u64 bytenr, u64 num_bytes);
+int btrfs_exclude_logged_extents(struct extent_buffer *eb);
+int btrfs_cross_ref_exist(struct btrfs_root *root,
+			  u64 objectid, u64 offset, u64 bytenr, bool strict,
+			  struct btrfs_path *path);
+struct extent_buffer *btrfs_alloc_tree_block(struct btrfs_trans_handle *trans,
+					     struct btrfs_root *root,
+					     u64 parent, u64 root_objectid,
+					     const struct btrfs_disk_key *key,
+					     int level, u64 hint,
+					     u64 empty_size,
+					     enum btrfs_lock_nesting nest);
+void btrfs_free_tree_block(struct btrfs_trans_handle *trans,
+			   u64 root_id,
+			   struct extent_buffer *buf,
+			   u64 parent, int last_ref);
+int btrfs_alloc_reserved_file_extent(struct btrfs_trans_handle *trans,
+				     struct btrfs_root *root, u64 owner,
+				     u64 offset, u64 ram_bytes,
+				     struct btrfs_key *ins);
+int btrfs_alloc_logged_file_extent(struct btrfs_trans_handle *trans,
+				   u64 root_objectid, u64 owner, u64 offset,
+				   struct btrfs_key *ins);
+int btrfs_reserve_extent(struct btrfs_root *root, u64 ram_bytes, u64 num_bytes,
+			 u64 min_alloc_size, u64 empty_size, u64 hint_byte,
+			 struct btrfs_key *ins, int is_data, int delalloc);
+int btrfs_inc_ref(struct btrfs_trans_handle *trans, struct btrfs_root *root,
+		  struct extent_buffer *buf, int full_backref);
+int btrfs_dec_ref(struct btrfs_trans_handle *trans, struct btrfs_root *root,
+		  struct extent_buffer *buf, int full_backref);
+int btrfs_set_disk_extent_flags(struct btrfs_trans_handle *trans,
+				struct extent_buffer *eb, u64 flags, int level);
+int btrfs_free_extent(struct btrfs_trans_handle *trans, struct btrfs_ref *ref);
+
+int btrfs_free_reserved_extent(struct btrfs_fs_info *fs_info,
+			       u64 start, u64 len, int delalloc);
+int btrfs_pin_reserved_extent(struct btrfs_trans_handle *trans, u64 start, u64 len);
+int btrfs_finish_extent_commit(struct btrfs_trans_handle *trans);
+int btrfs_inc_extent_ref(struct btrfs_trans_handle *trans, struct btrfs_ref *generic_ref);
+
+#endif

fs/btrfs/file.c

@@ -32,6 +32,7 @@
 #include "subpage.h"
 #include "fs.h"
 #include "accessors.h"
+#include "extent-tree.h"
 
 static struct kmem_cache *btrfs_inode_defrag_cachep;
 /*

fs/btrfs/free-space-tree.c

@@ -14,6 +14,7 @@
 #include "block-group.h"
 #include "fs.h"
 #include "accessors.h"
+#include "extent-tree.h"
 
 static int __add_block_group_free_space(struct btrfs_trans_handle *trans,
 					struct btrfs_block_group *block_group,

fs/btrfs/inode-item.c

@@ -12,6 +12,7 @@
 #include "print-tree.h"
 #include "space-info.h"
 #include "accessors.h"
+#include "extent-tree.h"
 
 struct btrfs_inode_ref *btrfs_find_name_in_backref(struct extent_buffer *leaf,
 						   int slot,

fs/btrfs/inode.c

@@ -57,6 +57,7 @@
 #include "inode-item.h"
 #include "fs.h"
 #include "accessors.h"
+#include "extent-tree.h"
 
 struct btrfs_iget_args {
 	u64 ino;

fs/btrfs/ioctl.c

@@ -52,6 +52,7 @@
 #include "subpage.h"
 #include "fs.h"
 #include "accessors.h"
+#include "extent-tree.h"
 
 #ifdef CONFIG_64BIT
 /* If we have a 32-bit userspace and 64-bit kernel, then the UAPI

fs/btrfs/qgroup.c

@@ -26,6 +26,7 @@
 #include "tree-mod-log.h"
 #include "fs.h"
 #include "accessors.h"
+#include "extent-tree.h"
 
 /*
  * Helpers to access qgroup reservation

fs/btrfs/relocation.c

@@ -30,6 +30,7 @@
 #include "space-info.h"
 #include "fs.h"
 #include "accessors.h"
+#include "extent-tree.h"
 
 /*
  * Relocation overview

fs/btrfs/space-info.c

@@ -12,6 +12,7 @@
 #include "zoned.h"
 #include "fs.h"
 #include "accessors.h"
+#include "extent-tree.h"
 
 /*
  * HOW DOES SPACE RESERVATION WORK

fs/btrfs/transaction.c

@@ -26,6 +26,7 @@
 #include "zoned.h"
 #include "fs.h"
 #include "accessors.h"
+#include "extent-tree.h"
 
 static struct kmem_cache *btrfs_trans_handle_cachep;
 

fs/btrfs/tree-log.c

@@ -23,6 +23,7 @@
 #include "inode-item.h"
 #include "fs.h"
 #include "accessors.h"
+#include "extent-tree.h"
 
 #define MAX_CONFLICT_INODES 10