projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 6c98cd4e KS |
1 | /* |
| 2 | * sufile.h - NILFS segment usage 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 Koji Sato <koji@osrg.net>. | |
| 21 | */ | |
| 22 | ||
| 23 | #ifndef _NILFS_SUFILE_H | |
| 24 | #define _NILFS_SUFILE_H | |
| 25 | ||
| 26 | #include <linux/fs.h> | |
| 27 | #include <linux/buffer_head.h> | |
| 28 | #include <linux/nilfs2_fs.h> | |
| 29 | #include "mdt.h" | |
| 30 | ||
| 31 | #define NILFS_SUFILE_GFP NILFS_MDT_GFP | |
| 32 | ||
| 33 | static inline unsigned long nilfs_sufile_get_nsegments(struct inode *sufile) | |
| 34 | { | |
| 35 | return NILFS_MDT(sufile)->mi_nilfs->ns_nsegments; | |
| 36 | } | |
| 37 | ||
| 38 | int nilfs_sufile_alloc(struct inode *, __u64 *); | |
| 39 | int nilfs_sufile_cancel_free(struct inode *, __u64); | |
| 40 | int nilfs_sufile_freev(struct inode *, __u64 *, size_t); | |
| 41 | int nilfs_sufile_free(struct inode *, __u64); | |
| 42 | int nilfs_sufile_get_segment_usage(struct inode *, __u64, | |
| 43 | struct nilfs_segment_usage **, | |
| 44 | struct buffer_head **); | |
| 45 | void nilfs_sufile_put_segment_usage(struct inode *, __u64, | |
| 46 | struct buffer_head *); | |
| 47 | int nilfs_sufile_get_stat(struct inode *, struct nilfs_sustat *); | |
| 48 | int nilfs_sufile_get_ncleansegs(struct inode *, unsigned long *); | |
| 49 | int nilfs_sufile_set_error(struct inode *, __u64); | |
| 50 | ssize_t nilfs_sufile_get_suinfo(struct inode *, __u64, struct nilfs_suinfo *, | |
| 51 | size_t); | |
| 52 | ||
| 53 | ||
| 54 | #endif /* _NILFS_SUFILE_H */ |