xref: /openbmc/linux/fs/gfs2/bmap.h (revision 93dc544c)
1  /*
2   * Copyright (C) Sistina Software, Inc.  1997-2003 All rights reserved.
3   * Copyright (C) 2004-2006 Red Hat, Inc.  All rights reserved.
4   *
5   * This copyrighted material is made available to anyone wishing to use,
6   * modify, copy, or redistribute it subject to the terms and conditions
7   * of the GNU General Public License version 2.
8   */
9  
10  #ifndef __BMAP_DOT_H__
11  #define __BMAP_DOT_H__
12  
13  struct inode;
14  struct gfs2_inode;
15  struct page;
16  
17  int gfs2_unstuff_dinode(struct gfs2_inode *ip, struct page *page);
18  int gfs2_block_map(struct inode *inode, sector_t lblock, struct buffer_head *bh, int create);
19  int gfs2_extent_map(struct inode *inode, u64 lblock, int *new, u64 *dblock, unsigned *extlen);
20  
21  int gfs2_truncatei(struct gfs2_inode *ip, u64 size);
22  int gfs2_truncatei_resume(struct gfs2_inode *ip);
23  int gfs2_file_dealloc(struct gfs2_inode *ip);
24  
25  void gfs2_write_calc_reserv(struct gfs2_inode *ip, unsigned int len,
26  			    unsigned int *data_blocks,
27  			    unsigned int *ind_blocks);
28  int gfs2_write_alloc_required(struct gfs2_inode *ip, u64 offset,
29  			      unsigned int len, int *alloc_required);
30  
31  #endif /* __BMAP_DOT_H__ */
32