linux/fs/xfs/xfs_itable.h
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   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 */
  26typedef 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 */
  43int                                     /* error status */
  44xfs_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
  53int
  54xfs_bulkstat_single(
  55        xfs_mount_t             *mp,
  56        xfs_ino_t               *lastinop,
  57        char                    __user *buffer,
  58        int                     *done);
  59
  60typedef int (*bulkstat_one_fmt_pf)(  /* used size in bytes or negative error */
  61        void                    __user *ubuffer, /* buffer to write to */
  62        int                     ubsize,          /* remaining user buffer sz */
  63        int                     *ubused,         /* bytes used by formatter */
  64        const xfs_bstat_t       *buffer);        /* buffer to read from */
  65
  66int
  67xfs_bulkstat_one_int(
  68        xfs_mount_t             *mp,
  69        xfs_ino_t               ino,
  70        void                    __user *buffer,
  71        int                     ubsize,
  72        bulkstat_one_fmt_pf     formatter,
  73        int                     *ubused,
  74        int                     *stat);
  75
  76int
  77xfs_bulkstat_one(
  78        xfs_mount_t             *mp,
  79        xfs_ino_t               ino,
  80        void                    __user *buffer,
  81        int                     ubsize,
  82        int                     *ubused,
  83        int                     *stat);
  84
  85typedef int (*inumbers_fmt_pf)(
  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
  91int
  92xfs_inumbers_fmt(
  93        void                    __user *ubuffer, /* buffer to write to */
  94        const xfs_inogrp_t      *buffer,        /* buffer to read from */
  95        long                    count,          /* # of elements to read */
  96        long                    *written);      /* # of bytes written */
  97
  98int                                     /* error status */
  99xfs_inumbers(
 100        xfs_mount_t             *mp,    /* mount point for filesystem */
 101        xfs_ino_t               *last,  /* last inode returned */
 102        int                     *count, /* size of buffer/count returned */
 103        void                    __user *buffer, /* buffer with inode info */
 104        inumbers_fmt_pf         formatter);
 105
 106#endif  /* __XFS_ITABLE_H__ */
 107
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