xref: /openbmc/linux/fs/gfs2/bmap.h (revision 7a6bbacb)
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, u64 lblock, int create, struct buffer_head *bh, unsigned int maxlen);
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