64 lines
2.8 KiB
C
64 lines
2.8 KiB
C
/*
|
|
* Copyright (C) 2007 Oracle. All rights reserved.
|
|
*
|
|
* 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 __DISKIO__
|
|
#define __DISKIO__
|
|
|
|
#define BTRFS_SUPER_INFO_OFFSET (16 * 1024)
|
|
|
|
struct extent_buffer *read_tree_block(struct btrfs_root *root, u64 bytenr,
|
|
u32 blocksize);
|
|
int readahead_tree_block(struct btrfs_root *root, u64 bytenr, u32 blocksize);
|
|
struct extent_buffer *btrfs_find_create_tree_block(struct btrfs_root *root,
|
|
u64 bytenr, u32 blocksize);
|
|
int clean_tree_block(struct btrfs_trans_handle *trans,
|
|
struct btrfs_root *root, struct extent_buffer *buf);
|
|
struct btrfs_root *open_ctree(struct super_block *sb);
|
|
int close_ctree(struct btrfs_root *root);
|
|
int write_ctree_super(struct btrfs_trans_handle *trans,
|
|
struct btrfs_root *root);
|
|
struct extent_buffer *btrfs_find_tree_block(struct btrfs_root *root,
|
|
u64 bytenr, u32 blocksize);
|
|
struct btrfs_root *btrfs_read_fs_root(struct btrfs_fs_info *fs_info,
|
|
struct btrfs_key *location,
|
|
const char *name, int namelen);
|
|
struct btrfs_root *btrfs_read_fs_root_no_radix(struct btrfs_fs_info *fs_info,
|
|
struct btrfs_key *location);
|
|
int btrfs_insert_dev_radix(struct btrfs_root *root,
|
|
struct block_device *bdev,
|
|
u64 device_id,
|
|
u64 block_start,
|
|
u64 num_blocks);
|
|
void btrfs_btree_balance_dirty(struct btrfs_root *root, unsigned long nr);
|
|
int btrfs_free_fs_root(struct btrfs_fs_info *fs_info, struct btrfs_root *root);
|
|
void btrfs_mark_buffer_dirty(struct extent_buffer *buf);
|
|
int btrfs_buffer_uptodate(struct extent_buffer *buf);
|
|
int btrfs_set_buffer_uptodate(struct extent_buffer *buf);
|
|
int wait_on_tree_block_writeback(struct btrfs_root *root,
|
|
struct extent_buffer *buf);
|
|
void btrfs_set_buffer_defrag(struct extent_buffer *buf);
|
|
void btrfs_set_buffer_defrag_done(struct extent_buffer *buf);
|
|
int btrfs_buffer_defrag(struct extent_buffer *buf);
|
|
int btrfs_buffer_defrag_done(struct extent_buffer *buf);
|
|
int btrfs_clear_buffer_defrag(struct extent_buffer *buf);
|
|
int btrfs_clear_buffer_defrag_done(struct extent_buffer *buf);
|
|
int btrfs_read_buffer(struct extent_buffer *buf);
|
|
u32 btrfs_csum_data(struct btrfs_root *root, char *data, u32 seed, size_t len);
|
|
void btrfs_csum_final(u32 crc, char *result);
|
|
#endif
|