xref: /openbmc/linux/fs/xfs/libxfs/xfs_inode_buf.h (revision a2cce7a9)
1 /*
2  * Copyright (c) 2000-2003,2005 Silicon Graphics, Inc.
3  * All Rights Reserved.
4  *
5  * This program is free software; you can redistribute it and/or
6  * modify it under the terms of the GNU General Public License as
7  * published by the Free Software Foundation.
8  *
9  * This program is distributed in the hope that it would be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12  * GNU General Public License for more details.
13  *
14  * You should have received a copy of the GNU General Public License
15  * along with this program; if not, write the Free Software Foundation,
16  * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
17  */
18 #ifndef	__XFS_INODE_BUF_H__
19 #define	__XFS_INODE_BUF_H__
20 
21 struct xfs_inode;
22 struct xfs_dinode;
23 struct xfs_icdinode;
24 
25 /*
26  * Inode location information.  Stored in the inode and passed to
27  * xfs_imap_to_bp() to get a buffer and dinode for a given inode.
28  */
29 struct xfs_imap {
30 	xfs_daddr_t	im_blkno;	/* starting BB of inode chunk */
31 	ushort		im_len;		/* length in BBs of inode chunk */
32 	ushort		im_boffset;	/* inode offset in block in bytes */
33 };
34 
35 int	xfs_imap_to_bp(struct xfs_mount *, struct xfs_trans *,
36 		       struct xfs_imap *, struct xfs_dinode **,
37 		       struct xfs_buf **, uint, uint);
38 int	xfs_iread(struct xfs_mount *, struct xfs_trans *,
39 		  struct xfs_inode *, uint);
40 void	xfs_dinode_calc_crc(struct xfs_mount *, struct xfs_dinode *);
41 void	xfs_dinode_to_disk(struct xfs_dinode *to, struct xfs_icdinode *from);
42 void	xfs_dinode_from_disk(struct xfs_icdinode *to, struct xfs_dinode *from);
43 
44 #if defined(DEBUG)
45 void	xfs_inobp_check(struct xfs_mount *, struct xfs_buf *);
46 #else
47 #define	xfs_inobp_check(mp, bp)
48 #endif /* DEBUG */
49 
50 #endif	/* __XFS_INODE_BUF_H__ */
51