xref: /linux/fs/xfs/xfs_itable.h (revision 74ce1896c6c65b2f8cccbf59162d542988835835)
1 /*
2  * Copyright (c) 2000-2001 Silicon Graphics, Inc.  All Rights Reserved.
3  *
4  * This program is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU General Public License as
6  * published by the Free Software Foundation.
7  *
8  * This program is distributed in the hope that it would be useful,
9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
11  * GNU General Public License for more details.
12  *
13  * You should have received a copy of the GNU General Public License
14  * along with this program; if not, write the Free Software Foundation,
15  * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
16  */
17 #ifndef __XFS_ITABLE_H__
18 #define	__XFS_ITABLE_H__
19 
20 /*
21  * xfs_bulkstat() is used to fill in xfs_bstat structures as well as dm_stat
22  * structures (by the dmi library). This is a pointer to a formatter function
23  * that will iget the inode and fill in the appropriate structure.
24  * see xfs_bulkstat_one() and xfs_dm_bulkstat_one() in dmapi_xfs.c
25  */
26 typedef int (*bulkstat_one_pf)(struct xfs_mount	*mp,
27 			       xfs_ino_t	ino,
28 			       void		__user *buffer,
29 			       int		ubsize,
30 			       int		*ubused,
31 			       int		*stat);
32 
33 /*
34  * Values for stat return value.
35  */
36 #define BULKSTAT_RV_NOTHING	0
37 #define BULKSTAT_RV_DIDONE	1
38 #define BULKSTAT_RV_GIVEUP	2
39 
40 /*
41  * Return stat information in bulk (by-inode) for the filesystem.
42  */
43 int					/* error status */
44 xfs_bulkstat(
45 	xfs_mount_t	*mp,		/* mount point for filesystem */
46 	xfs_ino_t	*lastino,	/* last inode returned */
47 	int		*count,		/* size of buffer/count returned */
48 	bulkstat_one_pf formatter,	/* func that'd fill a single buf */
49 	size_t		statstruct_size,/* sizeof struct that we're filling */
50 	char		__user *ubuffer,/* buffer with inode stats */
51 	int		*done);		/* 1 if there are more stats to get */
52 
53 typedef int (*bulkstat_one_fmt_pf)(  /* used size in bytes or negative error */
54 	void			__user *ubuffer, /* buffer to write to */
55 	int			ubsize,		 /* remaining user buffer sz */
56 	int			*ubused,	 /* bytes used by formatter */
57 	const xfs_bstat_t	*buffer);        /* buffer to read from */
58 
59 int
60 xfs_bulkstat_one_int(
61 	xfs_mount_t		*mp,
62 	xfs_ino_t		ino,
63 	void			__user *buffer,
64 	int			ubsize,
65 	bulkstat_one_fmt_pf	formatter,
66 	int			*ubused,
67 	int			*stat);
68 
69 int
70 xfs_bulkstat_one(
71 	xfs_mount_t		*mp,
72 	xfs_ino_t		ino,
73 	void			__user *buffer,
74 	int			ubsize,
75 	int			*ubused,
76 	int			*stat);
77 
78 typedef int (*inumbers_fmt_pf)(
79 	void			__user *ubuffer, /* buffer to write to */
80 	const xfs_inogrp_t	*buffer,	/* buffer to read from */
81 	long			count,		/* # of elements to read */
82 	long			*written);	/* # of bytes written */
83 
84 int
85 xfs_inumbers_fmt(
86 	void			__user *ubuffer, /* buffer to write to */
87 	const xfs_inogrp_t	*buffer,	/* buffer to read from */
88 	long			count,		/* # of elements to read */
89 	long			*written);	/* # of bytes written */
90 
91 int					/* error status */
92 xfs_inumbers(
93 	xfs_mount_t		*mp,	/* mount point for filesystem */
94 	xfs_ino_t		*last,	/* last inode returned */
95 	int			*count,	/* size of buffer/count returned */
96 	void			__user *buffer, /* buffer with inode info */
97 	inumbers_fmt_pf		formatter);
98 
99 int xfs_internal_inum(struct xfs_mount *mp, xfs_ino_t ino);
100 
101 #endif	/* __XFS_ITABLE_H__ */
102