btrfs-progs: convert: move definitions for interal conversion API to own file

Signed-off-by: David Sterba <dsterba@suse.com>

1 files changed, 81 insertions, 0 deletions

diff --git a/convert/source-fs.h b/convert/source-fs.h
new file mode 100644
index 00000000..b6a159e5
--- /dev/null
+++ b/convert/source-fs.h
@@ -0,0 +1,81 @@
+/*
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public
+ * License v2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public
+ * License along with this program; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 021110-1307, USA.
+ */
+
+#ifndef __BTRFS_CONVERT_SOURCE_FS_H__
+#define __BTRFS_CONVERT_SOURCE_FS_H__
+
+#include "kerncompat.h"
+
+#define CONV_IMAGE_SUBVOL_OBJECTID BTRFS_FIRST_FREE_OBJECTID
+
+struct task_ctx {
+	uint32_t max_copy_inodes;
+	uint32_t cur_copy_inodes;
+	struct task_info *info;
+};
+
+struct btrfs_convert_context;
+struct btrfs_root;
+struct btrfs_trans_handle;
+struct btrfs_inode_item;
+
+struct btrfs_convert_operations {
+	const char *name;
+	int (*open_fs)(struct btrfs_convert_context *cctx, const char *devname);
+	int (*read_used_space)(struct btrfs_convert_context *cctx);
+	int (*copy_inodes)(struct btrfs_convert_context *cctx,
+			 struct btrfs_root *root, int datacsum,
+			 int packing, int noxattr, struct task_ctx *p);
+	void (*close_fs)(struct btrfs_convert_context *cctx);
+	int (*check_state)(struct btrfs_convert_context *cctx);
+};
+
+struct blk_iterate_data {
+	struct btrfs_trans_handle *trans;
+	struct btrfs_root *root;
+	struct btrfs_root *convert_root;
+	struct btrfs_inode_item *inode;
+	u64 convert_ino;
+	u64 objectid;
+	u64 first_block;
+	u64 disk_block;
+	u64 num_blocks;
+	u64 boundary;
+	int checksum;
+	int errcode;
+};
+
+void init_convert_context(struct btrfs_convert_context *cctx);
+void clean_convert_context(struct btrfs_convert_context *cctx);
+int block_iterate_proc(u64 disk_block, u64 file_block,
+		              struct blk_iterate_data *idata);
+void init_blk_iterate_data(struct blk_iterate_data *data,
+				  struct btrfs_trans_handle *trans,
+				  struct btrfs_root *root,
+				  struct btrfs_inode_item *inode,
+				  u64 objectid, int checksum);
+int convert_insert_dirent(struct btrfs_trans_handle *trans,
+				 struct btrfs_root *root,
+				 const char *name, size_t name_len,
+				 u64 dir, u64 objectid,
+				 u8 file_type, u64 index_cnt,
+				 struct btrfs_inode_item *inode);
+int read_disk_extent(struct btrfs_root *root, u64 bytenr,
+		            u32 num_bytes, char *buffer);
+int record_file_blocks(struct blk_iterate_data *data,
+			      u64 file_block, u64 disk_block, u64 num_blocks);
+
+#endif