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Linux Cross Reference
Linux-2.6.17/fs/ext2/xip.h

Version: ~ [ 2.6.16 ] ~ [ 2.6.17 ] ~
Architecture: ~ [ ia64 ] ~ [ i386 ] ~ [ arm ] ~ [ ppc ] ~ [ sparc64 ] ~ 
  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 extern int ext2_clear_xip_target (struct inode *, int);
 11 
 12 static inline int ext2_use_xip (struct super_block *sb)
 13 {
 14         struct ext2_sb_info *sbi = EXT2_SB(sb);
 15         return (sbi->s_mount_opt & EXT2_MOUNT_XIP);
 16 }
 17 struct page* ext2_get_xip_page (struct address_space *, sector_t, int);
 18 #define mapping_is_xip(map) unlikely(map->a_ops->get_xip_page)
 19 #else
 20 #define mapping_is_xip(map)                     0
 21 #define ext2_xip_verify_sb(sb)                  do { } while (0)
 22 #define ext2_use_xip(sb)                        0
 23 #define ext2_clear_xip_target(inode, chain)     0
 24 #define ext2_get_xip_page                       NULL
 25 #endif
 26
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