fs/ext2/xip.h

   1 /*
   2  *  linux/fs/ext2/xip.h
   3  *
   4  * Copyright (C) 2005 IBM Corporation
   5  * Author: Carsten Otte (cotte@de.ibm.com)
   6  */
   7
   8 #ifdef CONFIG_EXT2_FS_XIP
   9 extern void ext2_xip_verify_sb (struct super_block *);
  10 static inline int ext2_use_xip (struct super_block *sb)
  11 {
  12         struct ext2_sb_info *sbi = EXT2_SB(sb);
  13         return (sbi->s_mount_opt & EXT2_MOUNT_XIP);
  14 }
  15 int ext2_get_xip_mem(struct address_space *, pgoff_t, int,
  16                                 void **, unsigned long *);
  17 #else
  18 #define ext2_xip_verify_sb(sb)                  do { } while (0)
  19 #define ext2_use_xip(sb)                        0
  20 #define ext2_get_xip_mem                        NULL
  21 #endif