| lh | 9ed821d | 2023-04-07 01:36:19 -0700 | [diff] [blame] | 1 | /* |
| 2 | * ifile.h - NILFS inode file |
| 3 | * |
| 4 | * Copyright (C) 2006-2008 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 Amagai Yoshiji <amagai@osrg.net> |
| 21 | * Revised by Ryusuke Konishi <ryusuke@osrg.net> |
| 22 | * |
| 23 | */ |
| 24 | |
| 25 | #ifndef _NILFS_IFILE_H |
| 26 | #define _NILFS_IFILE_H |
| 27 | |
| 28 | #include <linux/fs.h> |
| 29 | #include <linux/buffer_head.h> |
| 30 | #include <linux/nilfs2_fs.h> |
| 31 | #include "mdt.h" |
| 32 | #include "alloc.h" |
| 33 | |
| 34 | |
| 35 | static inline struct nilfs_inode * |
| 36 | nilfs_ifile_map_inode(struct inode *ifile, ino_t ino, struct buffer_head *ibh) |
| 37 | { |
| 38 | void *kaddr = kmap(ibh->b_page); |
| 39 | return nilfs_palloc_block_get_entry(ifile, ino, ibh, kaddr); |
| 40 | } |
| 41 | |
| 42 | static inline void nilfs_ifile_unmap_inode(struct inode *ifile, ino_t ino, |
| 43 | struct buffer_head *ibh) |
| 44 | { |
| 45 | kunmap(ibh->b_page); |
| 46 | } |
| 47 | |
| 48 | int nilfs_ifile_create_inode(struct inode *, ino_t *, struct buffer_head **); |
| 49 | int nilfs_ifile_delete_inode(struct inode *, ino_t); |
| 50 | int nilfs_ifile_get_inode_block(struct inode *, ino_t, struct buffer_head **); |
| 51 | |
| 52 | int nilfs_ifile_read(struct super_block *sb, struct nilfs_root *root, |
| 53 | size_t inode_size, struct nilfs_inode *raw_inode, |
| 54 | struct inode **inodep); |
| 55 | |
| 56 | #endif /* _NILFS_IFILE_H */ |