xref: /openbmc/linux/fs/xfs/xfs_itable.h (revision 22246614)
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 			       void		*private_data,
31 			       xfs_daddr_t	bno,
32 			       int		*ubused,
33 			       void		*dip,
34 			       int		*stat);
35 
36 /*
37  * Values for stat return value.
38  */
39 #define BULKSTAT_RV_NOTHING	0
40 #define BULKSTAT_RV_DIDONE	1
41 #define BULKSTAT_RV_GIVEUP	2
42 
43 /*
44  * Values for bulkstat flag argument.
45  */
46 #define BULKSTAT_FG_IGET	0x1	/* Go through the buffer cache */
47 #define BULKSTAT_FG_QUICK	0x2	/* No iget, walk the dinode cluster */
48 #define BULKSTAT_FG_INLINE	0x4	/* No iget if inline attrs */
49 
50 /*
51  * Return stat information in bulk (by-inode) for the filesystem.
52  */
53 int					/* error status */
54 xfs_bulkstat(
55 	xfs_mount_t	*mp,		/* mount point for filesystem */
56 	xfs_ino_t	*lastino,	/* last inode returned */
57 	int		*count,		/* size of buffer/count returned */
58 	bulkstat_one_pf formatter,	/* func that'd fill a single buf */
59 	void		*private_data,	/* private data for formatter */
60 	size_t		statstruct_size,/* sizeof struct that we're filling */
61 	char		__user *ubuffer,/* buffer with inode stats */
62 	int		flags,		/* flag to control access method */
63 	int		*done);		/* 1 if there are more stats to get */
64 
65 int
66 xfs_bulkstat_single(
67 	xfs_mount_t		*mp,
68 	xfs_ino_t		*lastinop,
69 	char			__user *buffer,
70 	int			*done);
71 
72 typedef int (*bulkstat_one_fmt_pf)(  /* used size in bytes or negative error */
73 	void			__user *ubuffer, /* buffer to write to */
74 	const xfs_bstat_t	*buffer);        /* buffer to read from */
75 
76 int
77 xfs_bulkstat_one(
78 	xfs_mount_t		*mp,
79 	xfs_ino_t		ino,
80 	void			__user *buffer,
81 	int			ubsize,
82 	void			*private_data,
83 	xfs_daddr_t		bno,
84 	int			*ubused,
85 	void			*dibuff,
86 	int			*stat);
87 
88 int
89 xfs_internal_inum(
90 	xfs_mount_t		*mp,
91 	xfs_ino_t		ino);
92 
93 typedef int (*inumbers_fmt_pf)(
94 	void			__user *ubuffer, /* buffer to write to */
95 	const xfs_inogrp_t	*buffer,	/* buffer to read from */
96 	long			count,		/* # of elements to read */
97 	long			*written);	/* # of bytes written */
98 
99 int
100 xfs_inumbers_fmt(
101 	void			__user *ubuffer, /* buffer to write to */
102 	const xfs_inogrp_t	*buffer,	/* buffer to read from */
103 	long			count,		/* # of elements to read */
104 	long			*written);	/* # of bytes written */
105 
106 int					/* error status */
107 xfs_inumbers(
108 	xfs_mount_t		*mp,	/* mount point for filesystem */
109 	xfs_ino_t		*last,	/* last inode returned */
110 	int			*count,	/* size of buffer/count returned */
111 	void			__user *buffer, /* buffer with inode info */
112 	inumbers_fmt_pf		formatter);
113 
114 #endif	/* __XFS_ITABLE_H__ */
115