fs/xfs/xfs_itable.h

   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         int                     ubsize,          /* remaining user buffer sz */
  75         int                     *ubused,         /* bytes used by formatter */
  76         const xfs_bstat_t       *buffer);        /* buffer to read from */
  77
  78 int
  79 xfs_bulkstat_one_int(
  80         xfs_mount_t             *mp,
  81         xfs_ino_t               ino,
  82         void                    __user *buffer,
  83         int                     ubsize,
  84         bulkstat_one_fmt_pf     formatter,
  85         xfs_daddr_t             bno,
  86         int                     *ubused,
  87         void                    *dibuff,
  88         int                     *stat);
  89
  90 int
  91 xfs_bulkstat_one(
  92         xfs_mount_t             *mp,
  93         xfs_ino_t               ino,
  94         void                    __user *buffer,
  95         int                     ubsize,
  96         void                    *private_data,
  97         xfs_daddr_t             bno,
  98         int                     *ubused,
  99         void                    *dibuff,
 100         int                     *stat);
 101
 102 typedef int (*inumbers_fmt_pf)(
 103         void                    __user *ubuffer, /* buffer to write to */
 104         const xfs_inogrp_t      *buffer,        /* buffer to read from */
 105         long                    count,          /* # of elements to read */
 106         long                    *written);      /* # of bytes written */
 107
 108 int
 109 xfs_inumbers_fmt(
 110         void                    __user *ubuffer, /* buffer to write to */
 111         const xfs_inogrp_t      *buffer,        /* buffer to read from */
 112         long                    count,          /* # of elements to read */
 113         long                    *written);      /* # of bytes written */
 114
 115 int                                     /* error status */
 116 xfs_inumbers(
 117         xfs_mount_t             *mp,    /* mount point for filesystem */
 118         xfs_ino_t               *last,  /* last inode returned */
 119         int                     *count, /* size of buffer/count returned */
 120         void                    __user *buffer, /* buffer with inode info */
 121         inumbers_fmt_pf         formatter);
 122
 123 #endif  /* __XFS_ITABLE_H__ */