bmap.h 1.09 KB
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/*
 * Copyright (C) Sistina Software, Inc.  1997-2003 All rights reserved.
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 * Copyright (C) 2004-2006 Red Hat, Inc.  All rights reserved.
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 *
 * This copyrighted material is made available to anyone wishing to use,
 * modify, copy, or redistribute it subject to the terms and conditions
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 * of the GNU General Public License version 2.
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 */

#ifndef __BMAP_DOT_H__
#define __BMAP_DOT_H__

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struct inode;
struct gfs2_inode;
struct page;

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int gfs2_unstuff_dinode(struct gfs2_inode *ip, struct page *page);
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int gfs2_block_map(struct inode *inode, sector_t lblock, struct buffer_head *bh, int create);
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int gfs2_extent_map(struct inode *inode, u64 lblock, int *new, u64 *dblock, unsigned *extlen);
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int gfs2_truncatei(struct gfs2_inode *ip, u64 size);
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int gfs2_truncatei_resume(struct gfs2_inode *ip);
int gfs2_file_dealloc(struct gfs2_inode *ip);

void gfs2_write_calc_reserv(struct gfs2_inode *ip, unsigned int len,
			    unsigned int *data_blocks,
			    unsigned int *ind_blocks);
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int gfs2_write_alloc_required(struct gfs2_inode *ip, u64 offset,
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			      unsigned int len, int *alloc_required);

#endif /* __BMAP_DOT_H__ */