LXR linux/include/linux/coda_fs

   1/*
   2 *  coda_fs_i.h
   3 *
   4 *  Copyright (C) 1998 Carnegie Mellon University
   5 *
   6 */
   7
   8#ifndef _LINUX_CODA_FS_I
   9#define _LINUX_CODA_FS_I
  10
  11#include <linux/types.h>
  12#include <linux/list.h>
  13#include <linux/coda.h>
  14
  15/*
  16 * coda fs inode data
  17 */
  18struct coda_inode_info {
  19        struct CodaFid     c_fid;       /* Coda identifier */
  20        u_short            c_flags;     /* flags (see below) */
  21        struct list_head   c_cilist;    /* list of all coda inodes */
  22        unsigned int       c_mapcount;  /* nr of times this inode is mapped */
  23        unsigned int       c_cached_epoch; /* epoch for cached permissions */
  24        vuid_t             c_uid;       /* fsuid for cached permissions */
  25        unsigned int       c_cached_perm; /* cached access permissions */
  26        struct inode       vfs_inode;
  27};
  28
  29/*
  30 * coda fs file private data
  31 */
  32#define CODA_MAGIC 0xC0DAC0DA
  33struct coda_file_info {
  34        int                cfi_magic;     /* magic number */
  35        struct file       *cfi_container; /* container file for this cnode */
  36        unsigned int       cfi_mapcount;  /* nr of times this file is mapped */
  37};
  38
  39#define CODA_FTOC(file) ((struct coda_file_info *)((file)->private_data))
  40
  41/* flags */
  42#define C_VATTR       0x1   /* Validity of vattr in inode */
  43#define C_FLUSH       0x2   /* used after a flush */
  44#define C_DYING       0x4   /* from venus (which died) */
  45#define C_PURGE       0x8
  46
  47int coda_cnode_make(struct inode **, struct CodaFid *, struct super_block *);
  48struct inode *coda_iget(struct super_block *sb, struct CodaFid *fid, struct coda_vattr *attr);
  49int coda_cnode_makectl(struct inode **inode, struct super_block *sb);
  50struct inode *coda_fid_to_inode(struct CodaFid *fid, struct super_block *sb);
  51void coda_replace_fid(struct inode *, struct CodaFid *, struct CodaFid *);
  52
  53#endif
  54