include/linux/efs_fs.h

   1 /*
   2  * efs_fs.h
   3  *
   4  * Copyright (c) 1999 Al Smith
   5  *
   6  * Portions derived from work (c) 1995,1996 Christian Vogelgsang.
   7  */
   8
   9 #ifndef __EFS_FS_H__
  10 #define __EFS_FS_H__
  11
  12 #define EFS_VERSION "1.0a"
  13
  14 static const char cprt[] = "EFS: "EFS_VERSION" - (c) 1999 Al Smith <Al.Smith@aeschi.ch.eu.org>";
  15
  16 #include <asm/uaccess.h>
  17
  18 #ifndef LINUX_VERSION_CODE
  19 #include <linux/version.h>
  20 #endif
  21
  22 #if LINUX_VERSION_CODE < 0x20200
  23 #error This code is only for linux-2.2 and later.
  24 #endif
  25
  26 /* 1 block is 512 bytes */
  27 #define EFS_BLOCKSIZE_BITS      9
  28 #define EFS_BLOCKSIZE           (1 << EFS_BLOCKSIZE_BITS)
  29
  30 #include <linux/efs_fs_i.h>
  31 #include <linux/efs_dir.h>
  32
  33 #ifndef MIN
  34 #define MIN(a, b) (((a) < (b)) ? (a) : (b))
  35 #endif
  36 #ifndef MAX
  37 #define MAX(a, b) (((a) > (b)) ? (a) : (b))
  38 #endif
  39
  40 #ifdef _EFS_USE_GENERIC
  41 #define INODE_INFO(i) (struct efs_inode_info *) &((i)->u.generic_ip)
  42 #define SUPER_INFO(s) (struct efs_sb_info *)    &((s)->u.generic_sbp)
  43 #else
  44 #define INODE_INFO(i)                           &((i)->u.efs_i)
  45 #define SUPER_INFO(s)                           &((s)->u.efs_sb)
  46 #endif
  47
  48 extern struct inode_operations efs_dir_inode_operations;
  49 extern struct inode_operations efs_file_inode_operations;
  50 extern struct inode_operations efs_symlink_inode_operations;
  51
  52 extern int init_module(void);
  53 extern void cleanup_module(void);
  54 extern struct super_block *efs_read_super(struct super_block *, void *, int);
  55 extern void efs_put_super(struct super_block *);
  56 extern int efs_statfs(struct super_block *, struct statfs *, int);
  57
  58 extern void efs_read_inode(struct inode *);
  59 extern efs_block_t efs_map_block(struct inode *, efs_block_t);
  60
  61 extern struct dentry *efs_lookup(struct inode *, struct dentry *);
  62 extern int efs_bmap(struct inode *, int);
  63
  64 extern int init_efs_fs(void);
  65
  66 #endif /* __EFS_FS_H__ */
  67