projects / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| a60be987 RK |
1 | /* |
| 2 | * btnode.h - NILFS B-tree node cache | |
| 3 | * | |
| 4 | * Copyright (C) 2005-2008 Nippon Telegraph and Telephone Corporation. | |
| 5 | * | |
| 6 | * This program is free software; you can redistribute it and/or modify | |
| 7 | * it under the terms of the GNU General Public License as published by | |
| 8 | * the Free Software Foundation; either version 2 of the License, or | |
| 9 | * (at your option) any later version. | |
| 10 | * | |
| 11 | * This program is distributed in the hope that it will be useful, | |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 14 | * GNU General Public License for more details. | |
| 15 | * | |
| 16 | * You should have received a copy of the GNU General Public License | |
| 17 | * along with this program; if not, write to the Free Software | |
| 18 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
| 19 | * | |
| 20 | * Written by Seiji Kihara <[email protected]> | |
| 21 | * Revised by Ryusuke Konishi <[email protected]> | |
| 22 | */ | |
| 23 | ||
| 24 | #ifndef _NILFS_BTNODE_H | |
| 25 | #define _NILFS_BTNODE_H | |
| 26 | ||
| 27 | #include <linux/types.h> | |
| 28 | #include <linux/buffer_head.h> | |
| 29 | #include <linux/fs.h> | |
| 30 | #include <linux/backing-dev.h> | |
| 31 | ||
| 32 | ||
| 33 | struct nilfs_btnode_chkey_ctxt { | |
| 34 | __u64 oldkey; | |
| 35 | __u64 newkey; | |
| 36 | struct buffer_head *bh; | |
| 37 | struct buffer_head *newbh; | |
| 38 | }; | |
| 39 | ||
| 40 | void nilfs_btnode_cache_init_once(struct address_space *); | |
| a53b4751 | 41 | void nilfs_btnode_cache_init(struct address_space *, struct backing_dev_info *); |
| a60be987 RK |
42 | void nilfs_btnode_cache_clear(struct address_space *); |
| 43 | int nilfs_btnode_submit_block(struct address_space *, __u64, sector_t, | |
| 44 | struct buffer_head **, int); | |
| 45 | int nilfs_btnode_get(struct address_space *, __u64, sector_t, | |
| 46 | struct buffer_head **, int); | |
| 47 | void nilfs_btnode_delete(struct buffer_head *); | |
| 48 | int nilfs_btnode_prepare_change_key(struct address_space *, | |
| 49 | struct nilfs_btnode_chkey_ctxt *); | |
| 50 | void nilfs_btnode_commit_change_key(struct address_space *, | |
| 51 | struct nilfs_btnode_chkey_ctxt *); | |
| 52 | void nilfs_btnode_abort_change_key(struct address_space *, | |
| 53 | struct nilfs_btnode_chkey_ctxt *); | |
| 54 | ||
| 55 | #define nilfs_btnode_mark_dirty(bh) nilfs_mark_buffer_dirty(bh) | |
| 56 | ||
| 57 | ||
| 58 | #endif /* _NILFS_BTNODE_H */ |