LXR linux/fs/xfs/xfs

   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
  53typedef 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
  59int
  60xfs_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
  69int
  70xfs_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
  78typedef 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
  84int
  85xfs_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
  91int                                     /* error status */
  92xfs_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#endif  /* __XFS_ITABLE_H__ */
 100