fs/xfs/xfs_itable.h

   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  * Copyright (c) 2000-2001 Silicon Graphics, Inc.  All Rights Reserved.
   4  */
   5 #ifndef __XFS_ITABLE_H__
   6 #define __XFS_ITABLE_H__
   7
   8 /*
   9  * xfs_bulkstat() is used to fill in xfs_bstat structures as well as dm_stat
  10  * structures (by the dmi library). This is a pointer to a formatter function
  11  * that will iget the inode and fill in the appropriate structure.
  12  * see xfs_bulkstat_one() and xfs_dm_bulkstat_one() in dmapi_xfs.c
  13  */
  14 typedef int (*bulkstat_one_pf)(struct xfs_mount *mp,
  15                                xfs_ino_t        ino,
  16                                void             __user *buffer,
  17                                int              ubsize,
  18                                int              *ubused,
  19                                int              *stat);
  20
  21 /*
  22  * Values for stat return value.
  23  */
  24 #define BULKSTAT_RV_NOTHING     0
  25 #define BULKSTAT_RV_DIDONE      1
  26 #define BULKSTAT_RV_GIVEUP      2
  27
  28 /*
  29  * Return stat information in bulk (by-inode) for the filesystem.
  30  */
  31 int                                     /* error status */
  32 xfs_bulkstat(
  33         xfs_mount_t     *mp,            /* mount point for filesystem */
  34         xfs_ino_t       *lastino,       /* last inode returned */
  35         int             *count,         /* size of buffer/count returned */
  36         bulkstat_one_pf formatter,      /* func that'd fill a single buf */
  37         size_t          statstruct_size,/* sizeof struct that we're filling */
  38         char            __user *ubuffer,/* buffer with inode stats */
  39         int             *done);         /* 1 if there are more stats to get */
  40
  41 typedef int (*bulkstat_one_fmt_pf)(  /* used size in bytes or negative error */
  42         void                    __user *ubuffer, /* buffer to write to */
  43         int                     ubsize,          /* remaining user buffer sz */
  44         int                     *ubused,         /* bytes used by formatter */
  45         const xfs_bstat_t       *buffer);        /* buffer to read from */
  46
  47 int
  48 xfs_bulkstat_one_int(
  49         xfs_mount_t             *mp,
  50         xfs_ino_t               ino,
  51         void                    __user *buffer,
  52         int                     ubsize,
  53         bulkstat_one_fmt_pf     formatter,
  54         int                     *ubused,
  55         int                     *stat);
  56
  57 int
  58 xfs_bulkstat_one(
  59         xfs_mount_t             *mp,
  60         xfs_ino_t               ino,
  61         void                    __user *buffer,
  62         int                     ubsize,
  63         int                     *ubused,
  64         int                     *stat);
  65
  66 typedef int (*inumbers_fmt_pf)(
  67         void                    __user *ubuffer, /* buffer to write to */
  68         const xfs_inogrp_t      *buffer,        /* buffer to read from */
  69         long                    count,          /* # of elements to read */
  70         long                    *written);      /* # of bytes written */
  71
  72 int
  73 xfs_inumbers_fmt(
  74         void                    __user *ubuffer, /* buffer to write to */
  75         const xfs_inogrp_t      *buffer,        /* buffer to read from */
  76         long                    count,          /* # of elements to read */
  77         long                    *written);      /* # of bytes written */
  78
  79 int                                     /* error status */
  80 xfs_inumbers(
  81         xfs_mount_t             *mp,    /* mount point for filesystem */
  82         xfs_ino_t               *last,  /* last inode returned */
  83         int                     *count, /* size of buffer/count returned */
  84         void                    __user *buffer, /* buffer with inode info */
  85         inumbers_fmt_pf         formatter);
  86
  87 #endif  /* __XFS_ITABLE_H__ */