io/xfs_mkfile.sh

   1 #!/bin/sh -f
   2 # SPDX-License-Identifier: GPL-2.0
   3 # Copyright (c) 2005 Silicon Graphics, Inc.  All Rights Reserved.
   4 #
   5
   6 OPTS=""
   7 NOBYTES=false
   8 PREALLOC=false
   9 VERBOSE=false
  10 VERSION=false
  11 XFS_IO=`dirname $0`"/xfs_io -p xfs_mkfile"
  12 USAGE="Usage: xfs_mkfile [-npvV] size file..."
  13
  14 while getopts "npvV" c
  15 do
  16         case $c in
  17         n)      NOBYTES=true;;
  18         p)      PREALLOC=true;;
  19         v)      VERBOSE=true;;
  20         V)      VERSION=true;;
  21         \?)     echo $USAGE 1>&2
  22                 exit 2
  23                 ;;
  24         esac
  25 done
  26 $VERSION && $XFS_IO -V
  27
  28 shift `expr $OPTIND - 1`
  29 [ "$1" != "" ] || exit 0
  30 SIZE="$1"
  31 ERRORS=0
  32 shift
  33
  34 while [ "$1" != "" ]
  35 do
  36         if $VERBOSE ; then
  37                 $PREALLOC && echo "$1 $SIZE bytes pre-allocated"
  38                 $PREALLOC || echo "$1 $SIZE bytes"
  39         fi
  40         if $NOBYTES ; then
  41                 $XFS_IO -ft  -c "truncate $SIZE" -- "$1"
  42         elif $PREALLOC ; then
  43                 $XFS_IO -ftd -c "resvsp 0 $SIZE" \
  44                              -c "pwrite -q -S0 -b256k 0 $SIZE" \
  45                              -c "truncate $SIZE" -- "$1"
  46         else
  47                 $XFS_IO -ftd -c "pwrite -q -S0 -b256k 0 $SIZE" \
  48                              -c "truncate $SIZE" -- "$1"
  49         fi
  50         [ $? -eq 0 ] || ERRORS=`expr $ERRORS + 1`
  51         shift
  52 done
  53 exit $ERRORS