include/linux/coda_fs_i.h

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