src/afs/LINUX/osi_vfs.h

   1 /*
   2  * Copyright 2000, International Business Machines Corporation and others.
   3  * All Rights Reserved.
   4  *
   5  * This software has been released under the terms of the IBM Public
   6  * License.  For details, see the LICENSE file in the top-level source
   7  * directory or online at http://www.openafs.org/dl/license10.html
   8  */
   9
  10 /*
  11  * Linux interpretations of vnode and vfs structs.
  12  */
  13
  14 #ifndef OSI_VFS_H_
  15 #define OSI_VFS_H_
  16
  17 typedef struct inode vnode_t;
  18 #define vnode inode
  19
  20 /* Map vnode fields to inode fields */
  21 #define i_number        i_ino
  22 #define v_count         i_count
  23 #define v_op            i_op
  24 #define v_fop           i_fop
  25 #define v_type          i_mode
  26 #define v_vfsp          i_sb
  27 #define v_data          u.generic_ip
  28
  29 /* v_type bits map to mode bits */
  30 #define VNON 0
  31 #define VREG S_IFREG
  32 #define VDIR S_IFDIR
  33 #define VBLK S_IFBLK
  34 #define VCHR S_IFCHR
  35 #define VLNK S_IFLNK
  36 #define VSOCK S_IFSOCK
  37 #define VFIFO S_IFIFO
  38
  39 /* vcexcl - used only by afs_create */
  40 enum vcexcl { EXCL, NONEXCL } ;
  41
  42 /* afs_open and afs_close needs to distinguish these cases */
  43 #define FWRITE  O_WRONLY|O_RDWR|O_APPEND
  44 #define FTRUNC  O_TRUNC
  45
  46 #define IO_APPEND O_APPEND
  47 #define FSYNC O_SYNC
  48
  49 #define VTOI(V) (V)
  50
  51 /* Various mode bits */
  52 #define VWRITE  S_IWUSR
  53 #define VREAD   S_IRUSR
  54 #define VEXEC   S_IXUSR
  55 #define VSUID   S_ISUID
  56 #define VSGID   S_ISGID
  57
  58 #define vfs super_block
  59
  60 typedef struct vattr {
  61     int         va_type;        /* One of v_types above. */
  62     afs_size_t  va_size;
  63     unsigned long va_blocks;
  64     unsigned long va_blocksize;
  65     int         va_mask;        /* AT_xxx operation to perform. */
  66     umode_t     va_mode;        /* mode bits. */
  67     uid_t       va_uid;
  68     gid_t       va_gid;
  69     int         va_fsid;        /* Not used? */
  70     dev_t       va_rdev;
  71     ino_t       va_nodeid;      /* Inode number */
  72     nlink_t     va_nlink;       /* link count for file. */
  73     struct timeval va_atime;
  74     struct timeval va_mtime;
  75     struct timeval va_ctime;
  76 } vattr_t;
  77
  78 #define VATTR_NULL(A) memset(A, 0, sizeof(struct vattr))
  79
  80 #ifndef HAVE_LINUX_I_SIZE_READ
  81 #define i_size_read(X) ((X)->i_size)
  82 #define i_size_write(X,Y) (X)->i_size = Y
  83 #endif
  84
  85 #endif /* OSI_VFS_H_ */