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                                int              *ubused,
  31                                int              *stat);
  32
  33 struct xfs_bulkstat_agichunk {
  34         xfs_ino_t       ac_lastino;     /* last inode returned */
  35         char            __user **ac_ubuffer;/* pointer into user's buffer */
  36         int             ac_ubleft;      /* bytes left in user's buffer */
  37         int             ac_ubelem;      /* spaces used in user's buffer */
  38 };
  39
  40 int
  41 xfs_bulkstat_ag_ichunk(
  42         struct xfs_mount                *mp,
  43         xfs_agnumber_t                  agno,
  44         struct xfs_inobt_rec_incore     *irbp,
  45         bulkstat_one_pf                 formatter,
  46         size_t                          statstruct_size,
  47         struct xfs_bulkstat_agichunk    *acp);
  48
  49 /*
  50  * Values for stat return value.
  51  */
  52 #define BULKSTAT_RV_NOTHING     0
  53 #define BULKSTAT_RV_DIDONE      1
  54 #define BULKSTAT_RV_GIVEUP      2
  55
  56 /*
  57  * Return stat information in bulk (by-inode) for the filesystem.
  58  */
  59 int                                     /* error status */
  60 xfs_bulkstat(
  61         xfs_mount_t     *mp,            /* mount point for filesystem */
  62         xfs_ino_t       *lastino,       /* last inode returned */
  63         int             *count,         /* size of buffer/count returned */
  64         bulkstat_one_pf formatter,      /* func that'd fill a single buf */
  65         size_t          statstruct_size,/* sizeof struct that we're filling */
  66         char            __user *ubuffer,/* buffer with inode stats */
  67         int             *done);         /* 1 if there are more stats to get */
  68
  69 typedef int (*bulkstat_one_fmt_pf)(  /* used size in bytes or negative error */
  70         void                    __user *ubuffer, /* buffer to write to */
  71         int                     ubsize,          /* remaining user buffer sz */
  72         int                     *ubused,         /* bytes used by formatter */
  73         const xfs_bstat_t       *buffer);        /* buffer to read from */
  74
  75 int
  76 xfs_bulkstat_one_int(
  77         xfs_mount_t             *mp,
  78         xfs_ino_t               ino,
  79         void                    __user *buffer,
  80         int                     ubsize,
  81         bulkstat_one_fmt_pf     formatter,
  82         int                     *ubused,
  83         int                     *stat);
  84
  85 int
  86 xfs_bulkstat_one(
  87         xfs_mount_t             *mp,
  88         xfs_ino_t               ino,
  89         void                    __user *buffer,
  90         int                     ubsize,
  91         int                     *ubused,
  92         int                     *stat);
  93
  94 typedef int (*inumbers_fmt_pf)(
  95         void                    __user *ubuffer, /* buffer to write to */
  96         const xfs_inogrp_t      *buffer,        /* buffer to read from */
  97         long                    count,          /* # of elements to read */
  98         long                    *written);      /* # of bytes written */
  99
 100 int
 101 xfs_inumbers_fmt(
 102         void                    __user *ubuffer, /* buffer to write to */
 103         const xfs_inogrp_t      *buffer,        /* buffer to read from */
 104         long                    count,          /* # of elements to read */
 105         long                    *written);      /* # of bytes written */
 106
 107 int                                     /* error status */
 108 xfs_inumbers(
 109         xfs_mount_t             *mp,    /* mount point for filesystem */
 110         xfs_ino_t               *last,  /* last inode returned */
 111         int                     *count, /* size of buffer/count returned */
 112         void                    __user *buffer, /* buffer with inode info */
 113         inumbers_fmt_pf         formatter);
 114
 115 #endif  /* __XFS_ITABLE_H__ */