xref: /openbmc/linux/fs/jfs/jfs_extent.h (revision 9cfc5c90)
1 /*
2  *   Copyright (C) International Business Machines Corp., 2000-2001
3  *
4  *   This program is free software;  you can redistribute it and/or modify
5  *   it under the terms of the GNU General Public License as published by
6  *   the Free Software Foundation; either version 2 of the License, or
7  *   (at your option) any later version.
8  *
9  *   This program is distributed in the hope that it will be useful,
10  *   but WITHOUT ANY WARRANTY;  without even the implied warranty of
11  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
12  *   the 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 to the Free Software
16  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17  */
18 #ifndef	_H_JFS_EXTENT
19 #define _H_JFS_EXTENT
20 
21 /*  get block allocation allocation hint as location of disk inode */
22 #define	INOHINT(ip)	\
23 	(addressPXD(&(JFS_IP(ip)->ixpxd)) + lengthPXD(&(JFS_IP(ip)->ixpxd)) - 1)
24 
25 extern int	extAlloc(struct inode *, s64, s64, xad_t *, bool);
26 extern int	extFill(struct inode *, xad_t *);
27 extern int	extHint(struct inode *, s64, xad_t *);
28 extern int	extRealloc(struct inode *, s64, xad_t *, bool);
29 extern int	extRecord(struct inode *, xad_t *);
30 
31 #endif	/* _H_JFS_EXTENT */
32