git://bbs.cooldavid.org / net-next-2.6.git / blame
| Commit | Line | Data |
|---|---|---|
| 1b002d7b BC |
1 | #ifndef _OMFS_H |
| 2 | #define _OMFS_H | |
| 3 | ||
| 4 | #include <linux/module.h> | |
| 5 | #include <linux/fs.h> | |
| 6 | ||
| 7 | #include "omfs_fs.h" | |
| 8 | ||
| 9 | /* In-memory structures */ | |
| 10 | struct omfs_sb_info { | |
| 11 | u64 s_num_blocks; | |
| 12 | u64 s_bitmap_ino; | |
| 13 | u64 s_root_ino; | |
| 14 | u32 s_blocksize; | |
| 15 | u32 s_mirrors; | |
| 16 | u32 s_sys_blocksize; | |
| 17 | u32 s_clustersize; | |
| 18 | int s_block_shift; | |
| 19 | unsigned long **s_imap; | |
| 20 | int s_imap_size; | |
| 21 | struct mutex s_bitmap_lock; | |
| 22 | int s_uid; | |
| 23 | int s_gid; | |
| 24 | int s_dmask; | |
| 25 | int s_fmask; | |
| 26 | }; | |
| 27 | ||
| 28 | /* convert a cluster number to a scaled block number */ | |
| 29 | static inline sector_t clus_to_blk(struct omfs_sb_info *sbi, sector_t block) | |
| 30 | { | |
| 31 | return block << sbi->s_block_shift; | |
| 32 | } | |
| 33 | ||
| 34 | static inline struct omfs_sb_info *OMFS_SB(struct super_block *sb) | |
| 35 | { | |
| 36 | return sb->s_fs_info; | |
| 37 | } | |
| 38 | ||
| 39 | /* bitmap.c */ | |
| 40 | extern unsigned long omfs_count_free(struct super_block *sb); | |
| 41 | extern int omfs_allocate_block(struct super_block *sb, u64 block); | |
| 42 | extern int omfs_allocate_range(struct super_block *sb, int min_request, | |
| 43 | int max_request, u64 *return_block, int *return_size); | |
| 44 | extern int omfs_clear_range(struct super_block *sb, u64 block, int count); | |
| 45 | ||
| 46 | /* dir.c */ | |
| 828c0950 | 47 | extern const struct file_operations omfs_dir_operations; |
| 6e1d5dcc | 48 | extern const struct inode_operations omfs_dir_inops; |
| 1b002d7b BC |
49 | extern int omfs_make_empty(struct inode *inode, struct super_block *sb); |
| 50 | extern int omfs_is_bad(struct omfs_sb_info *sbi, struct omfs_header *header, | |
| 51 | u64 fsblock); | |
| 52 | ||
| 53 | /* file.c */ | |
| 828c0950 | 54 | extern const struct file_operations omfs_file_operations; |
| 6e1d5dcc | 55 | extern const struct inode_operations omfs_file_inops; |
| 7f09410b | 56 | extern const struct address_space_operations omfs_aops; |
| 1b002d7b BC |
57 | extern void omfs_make_empty_table(struct buffer_head *bh, int offset); |
| 58 | extern int omfs_shrink_inode(struct inode *inode); | |
| 59 | ||
| 60 | /* inode.c */ | |
| f068272c | 61 | extern struct buffer_head *omfs_bread(struct super_block *sb, sector_t block); |
| 1b002d7b BC |
62 | extern struct inode *omfs_iget(struct super_block *sb, ino_t inode); |
| 63 | extern struct inode *omfs_new_inode(struct inode *dir, int mode); | |
| 64 | extern int omfs_reserve_block(struct super_block *sb, sector_t block); | |
| 65 | extern int omfs_find_empty_block(struct super_block *sb, int mode, ino_t *ino); | |
| 66 | extern int omfs_sync_inode(struct inode *inode); | |
| 67 | ||
| 68 | #endif |