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/*
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* linux/fs/ext2/xip.h
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*
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* Copyright (C) 2005 IBM Corporation
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* Author: Carsten Otte (cotte@de.ibm.com)
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*/
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#ifdef CONFIG_EXT2_FS_XIP
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extern void ext2_xip_verify_sb (struct super_block *);
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extern int ext2_clear_xip_target (struct inode *, sector_t);
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static inline int ext2_use_xip (struct super_block *sb)
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{
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struct ext2_sb_info *sbi = EXT2_SB(sb);
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return (sbi->s_mount_opt & EXT2_MOUNT_XIP);
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}
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int ext2_get_xip_mem(struct address_space *, pgoff_t, int,
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void **, unsigned long *);
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#define mapping_is_xip(map) unlikely(map->a_ops->get_xip_mem)
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#else
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#define mapping_is_xip(map) 0
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#define ext2_xip_verify_sb(sb) do { } while (0)
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#define ext2_use_xip(sb) 0
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#define ext2_clear_xip_target(inode, chain) 0
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#define ext2_get_xip_mem NULL
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#endif
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