mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-27 22:53:55 +08:00
80fcbe751f
Acked-by: Bob Copeland <me@bobcopeland.com> Acked-by: Serge Hallyn <serge.hallyn@canonical.com> Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
69 lines
2.0 KiB
C
69 lines
2.0 KiB
C
#ifndef _OMFS_H
|
|
#define _OMFS_H
|
|
|
|
#include <linux/module.h>
|
|
#include <linux/fs.h>
|
|
|
|
#include "omfs_fs.h"
|
|
|
|
/* In-memory structures */
|
|
struct omfs_sb_info {
|
|
u64 s_num_blocks;
|
|
u64 s_bitmap_ino;
|
|
u64 s_root_ino;
|
|
u32 s_blocksize;
|
|
u32 s_mirrors;
|
|
u32 s_sys_blocksize;
|
|
u32 s_clustersize;
|
|
int s_block_shift;
|
|
unsigned long **s_imap;
|
|
int s_imap_size;
|
|
struct mutex s_bitmap_lock;
|
|
kuid_t s_uid;
|
|
kgid_t s_gid;
|
|
int s_dmask;
|
|
int s_fmask;
|
|
};
|
|
|
|
/* convert a cluster number to a scaled block number */
|
|
static inline sector_t clus_to_blk(struct omfs_sb_info *sbi, sector_t block)
|
|
{
|
|
return block << sbi->s_block_shift;
|
|
}
|
|
|
|
static inline struct omfs_sb_info *OMFS_SB(struct super_block *sb)
|
|
{
|
|
return sb->s_fs_info;
|
|
}
|
|
|
|
/* bitmap.c */
|
|
extern unsigned long omfs_count_free(struct super_block *sb);
|
|
extern int omfs_allocate_block(struct super_block *sb, u64 block);
|
|
extern int omfs_allocate_range(struct super_block *sb, int min_request,
|
|
int max_request, u64 *return_block, int *return_size);
|
|
extern int omfs_clear_range(struct super_block *sb, u64 block, int count);
|
|
|
|
/* dir.c */
|
|
extern const struct file_operations omfs_dir_operations;
|
|
extern const struct inode_operations omfs_dir_inops;
|
|
extern int omfs_make_empty(struct inode *inode, struct super_block *sb);
|
|
extern int omfs_is_bad(struct omfs_sb_info *sbi, struct omfs_header *header,
|
|
u64 fsblock);
|
|
|
|
/* file.c */
|
|
extern const struct file_operations omfs_file_operations;
|
|
extern const struct inode_operations omfs_file_inops;
|
|
extern const struct address_space_operations omfs_aops;
|
|
extern void omfs_make_empty_table(struct buffer_head *bh, int offset);
|
|
extern int omfs_shrink_inode(struct inode *inode);
|
|
|
|
/* inode.c */
|
|
extern struct buffer_head *omfs_bread(struct super_block *sb, sector_t block);
|
|
extern struct inode *omfs_iget(struct super_block *sb, ino_t inode);
|
|
extern struct inode *omfs_new_inode(struct inode *dir, umode_t mode);
|
|
extern int omfs_reserve_block(struct super_block *sb, sector_t block);
|
|
extern int omfs_find_empty_block(struct super_block *sb, int mode, ino_t *ino);
|
|
extern int omfs_sync_inode(struct inode *inode);
|
|
|
|
#endif
|