projects / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| 1b002d7b BC |
2 | #ifndef _OMFS_H |
| 3 | #define _OMFS_H | |
| 4 | ||
| 5 | #include <linux/module.h> | |
| 6 | #include <linux/fs.h> | |
| 7 | ||
| 8 | #include "omfs_fs.h" | |
| 9 | ||
| 10 | /* In-memory structures */ | |
| 11 | struct omfs_sb_info { | |
| 12 | u64 s_num_blocks; | |
| 13 | u64 s_bitmap_ino; | |
| 14 | u64 s_root_ino; | |
| 15 | u32 s_blocksize; | |
| 16 | u32 s_mirrors; | |
| 17 | u32 s_sys_blocksize; | |
| 18 | u32 s_clustersize; | |
| 19 | int s_block_shift; | |
| 20 | unsigned long **s_imap; | |
| 21 | int s_imap_size; | |
| 22 | struct mutex s_bitmap_lock; | |
| 80fcbe75 EB |
23 | kuid_t s_uid; |
| 24 | kgid_t s_gid; | |
| 1b002d7b BC |
25 | int s_dmask; |
| 26 | int s_fmask; | |
| 27 | }; | |
| 28 | ||
| 29 | /* convert a cluster number to a scaled block number */ | |
| 30 | static inline sector_t clus_to_blk(struct omfs_sb_info *sbi, sector_t block) | |
| 31 | { | |
| 32 | return block << sbi->s_block_shift; | |
| 33 | } | |
| 34 | ||
| 35 | static inline struct omfs_sb_info *OMFS_SB(struct super_block *sb) | |
| 36 | { | |
| 37 | return sb->s_fs_info; | |
| 38 | } | |
| 39 | ||
| 40 | /* bitmap.c */ | |
| 41 | extern unsigned long omfs_count_free(struct super_block *sb); | |
| 42 | extern int omfs_allocate_block(struct super_block *sb, u64 block); | |
| 43 | extern int omfs_allocate_range(struct super_block *sb, int min_request, | |
| 44 | int max_request, u64 *return_block, int *return_size); | |
| 45 | extern int omfs_clear_range(struct super_block *sb, u64 block, int count); | |
| 46 | ||
| 47 | /* dir.c */ | |
| 828c0950 | 48 | extern const struct file_operations omfs_dir_operations; |
| 6e1d5dcc | 49 | extern const struct inode_operations omfs_dir_inops; |
| 1b002d7b BC |
50 | extern int omfs_make_empty(struct inode *inode, struct super_block *sb); |
| 51 | extern int omfs_is_bad(struct omfs_sb_info *sbi, struct omfs_header *header, | |
| 52 | u64 fsblock); | |
| 53 | ||
| 54 | /* file.c */ | |
| 828c0950 | 55 | extern const struct file_operations omfs_file_operations; |
| 6e1d5dcc | 56 | extern const struct inode_operations omfs_file_inops; |
| 7f09410b | 57 | extern const struct address_space_operations omfs_aops; |
| 1b002d7b BC |
58 | extern void omfs_make_empty_table(struct buffer_head *bh, int offset); |
| 59 | extern int omfs_shrink_inode(struct inode *inode); | |
| 60 | ||
| 61 | /* inode.c */ | |
| f068272c | 62 | extern struct buffer_head *omfs_bread(struct super_block *sb, sector_t block); |
| 1b002d7b | 63 | extern struct inode *omfs_iget(struct super_block *sb, ino_t inode); |
| 587228be | 64 | extern struct inode *omfs_new_inode(struct inode *dir, umode_t mode); |
| 1b002d7b BC |
65 | extern int omfs_reserve_block(struct super_block *sb, sector_t block); |
| 66 | extern int omfs_find_empty_block(struct super_block *sb, int mode, ino_t *ino); | |
| 67 | extern int omfs_sync_inode(struct inode *inode); | |
| 68 | ||
| 69 | #endif |