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