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 /*
  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  */
  43 int                                     /* error status */
  44 xfs_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
  53 typedef 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
  59 int
  60 xfs_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
  69 int
  70 xfs_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
  78 typedef 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
  84 int
  85 xfs_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
  91 int                                     /* error status */
  92 xfs_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__ */