fs/adfs/file.c

   1 /*
   2  *  linux/fs/adfs/file.c
   3  *
   4  * Copyright (C) 1997 Russell King
   5  * from:
   6  *
   7  *  linux/fs/ext2/file.c
   8  *
   9  * Copyright (C) 1992, 1993, 1994, 1995
  10  * Remy Card (card@masi.ibp.fr)
  11  * Laboratoire MASI - Institut Blaise Pascal
  12  * Universite Pierre et Marie Curie (Paris VI)
  13  *
  14  *  from
  15  *
  16  *  linux/fs/minix/file.c
  17  *
  18  *  Copyright (C) 1991, 1992  Linus Torvalds
  19  *
  20  *  adfs regular file handling primitives
  21  */
  22
  23 #include <linux/errno.h>
  24 #include <linux/fs.h>
  25 #include <linux/ext2_fs.h>
  26 #include <linux/fcntl.h>
  27 #include <linux/sched.h>
  28 #include <linux/stat.h>
  29
  30 /*
  31  * We have mostly NULLs here: the current defaults are OK for
  32  * the adfs filesystem.
  33  */
  34 static struct file_operations adfs_file_operations = {
  35         NULL,                   /* lseek - default      */
  36         generic_file_read,      /* read                 */
  37         NULL,                   /* write                */
  38         NULL,                   /* readdir - bad        */
  39         NULL,                   /* select - default     */
  40         NULL,                   /* ioctl                */
  41         generic_file_mmap,      /* mmap                 */
  42         NULL,                   /* open - not special   */
  43         NULL,                   /* flush                */
  44         NULL,                   /* release              */
  45         file_fsync,             /* fsync                */
  46         NULL,                   /* fasync               */
  47         NULL,                   /* check_media_change   */
  48         NULL                    /* revalidate           */
  49 };
  50
  51 struct inode_operations adfs_file_inode_operations = {
  52         &adfs_file_operations,  /* default file operations      */
  53         NULL,                   /* create                       */
  54         NULL,                   /* lookup                       */
  55         NULL,                   /* link                         */
  56         NULL,                   /* unlink                       */
  57         NULL,                   /* symlink                      */
  58         NULL,                   /* mkdir                        */
  59         NULL,                   /* rmdir                        */
  60         NULL,                   /* mknod                        */
  61         NULL,                   /* rename                       */
  62         NULL,                   /* readlink                     */
  63         NULL,                   /* follow_link                  */
  64         adfs_bmap,              /* get_block                    */
  65         block_read_full_page,   /* readpage                     */
  66         NULL,                   /* writepage                    */
  67         NULL,                   /* truncate                     */
  68         NULL,                   /* permission                   */
  69         NULL                    /* revalidate                   */
  70 };