fs/efs/file.c

   1 /*
   2  * file.c
   3  *
   4  * Copyright (c) 1999 Al Smith
   5  *
   6  * Portions derived from work (c) 1995,1996 Christian Vogelgsang.
   7  */
   8
   9 #include <linux/buffer_head.h>
  10 <<<<<<< HEAD:fs/efs/file.c
  11 #include <linux/efs_fs.h>
  12 =======
  13 #include "efs.h"
  14 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:fs/efs/file.c
  15
  16 int efs_get_block(struct inode *inode, sector_t iblock,
  17                   struct buffer_head *bh_result, int create)
  18 {
  19         int error = -EROFS;
  20         long phys;
  21
  22         if (create)
  23                 return error;
  24         if (iblock >= inode->i_blocks) {
  25 #ifdef DEBUG
  26                 /*
  27                  * i have no idea why this happens as often as it does
  28                  */
  29                 printk(KERN_WARNING "EFS: bmap(): block %d >= %ld (filesize %ld)\n",
  30                         block,
  31                         inode->i_blocks,
  32                         inode->i_size);
  33 #endif
  34                 return 0;
  35         }
  36         phys = efs_map_block(inode, iblock);
  37         if (phys)
  38                 map_bh(bh_result, inode->i_sb, phys);
  39         return 0;
  40 }
  41
  42 int efs_bmap(struct inode *inode, efs_block_t block) {
  43
  44         if (block < 0) {
  45                 printk(KERN_WARNING "EFS: bmap(): block < 0\n");
  46                 return 0;
  47         }
  48
  49         /* are we about to read past the end of a file ? */
  50         if (!(block < inode->i_blocks)) {
  51 #ifdef DEBUG
  52                 /*
  53                  * i have no idea why this happens as often as it does
  54                  */
  55                 printk(KERN_WARNING "EFS: bmap(): block %d >= %ld (filesize %ld)\n",
  56                         block,
  57                         inode->i_blocks,
  58                         inode->i_size);
  59 #endif
  60                 return 0;
  61         }
  62
  63         return efs_map_block(inode, block);
  64 }