testcases/kernel/fs/quota_remount/quota_remount_test01.sh

   1 #!/bin/sh
   2 ################################################################################
   3 ##                                                                            ##
   4 ## Copyright (c) Jan Kara <jack@suse.cz>, 2008                                ##
   5 ## Copyright (c) International Business Machines  Corp., 2009                 ##
   6 ##                                                                            ##
   7 ## This program is free software;  you can redistribute it and#or modify      ##
   8 ## it under the terms of the GNU General Public License as published by       ##
   9 ## the Free Software Foundation; either version 2 of the License, or          ##
  10 ## (at your option) any later version.                                        ##
  11 ##                                                                            ##
  12 ## This program is distributed in the hope that it will be useful, but        ##
  13 ## WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY ##
  14 ## or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License   ##
  15 ## for more details.                                                          ##
  16 ##                                                                            ##
  17 ## You should have received a copy of the GNU General Public License          ##
  18 ## along with this program;  if not, write to the Free Software               ##
  19 ## Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA    ##
  20 ##                                                                            ##
  21 ################################################################################
  22 #                                                                             ##
  23 # File :        quota_remount_test01.sh                                       ##
  24 #                                                                             ##
  25 # Description:  Test whether kernel properly supports remounting read-only    ##
  26 #               with quota. This feature was added in kernel 2.6.26. Please   ##
  27 #               see: http://kernelnewbies.org/Linux_2_6_26, and               ##
  28 #               http://git.kernel.org/git/?p=linux/kernel/git/torvalds/       ##
  29 #               linux-2.6.git;a=commit;                                       ##
  30 #               h=0ff5af8340aa6be44220d7237ef4a654314cf795                    ##
  31 #               for more info.                                                ##
  32 #                                                                             ##
  33 # Author:       Jan Kara <jack@suse.cz>,                                      ##
  34 #                                                                             ##
  35 # History:      Sep 18 2008 - Created - Jan Kara <jack@suse.cz>.              ##
  36 #               Feb 17 2009 - Ported to LTP,                                  ##
  37 #                             Subrata Modak <subrata@linux.vnet.ibm.com>      ##
  38 ################################################################################
  39
  40 export TCID=quota_remount_test01
  41 export TST_TOTAL=1
  42 export TST_COUNT=0
  43
  44 PATH=$PATH:$LTPTOOLS
  45
  46 if [ -z $TMPDIR ]
  47 then
  48         TMPDIR=/tmp
  49 fi
  50 MNTDIR=$TMPDIR/mnt
  51
  52 uname -r | {
  53         IFS='.-'
  54         read MAJOR MINOR RELEASE REST
  55         if [ "$MAJOR" -lt 2 -o "$MINOR" -lt 6 -o "$RELEASE" -lt 26 ]; then
  56                 exit 1
  57         fi
  58         exit 0; }
  59 if [ $? -gt 0 ]; then
  60         tst_resm TCONF "Remounting with quotas enabled is not supported!"
  61         tst_resm TCONF "You should have kernel 2.6.26 and above running....."
  62         exit 0
  63 fi
  64
  65 if [ ! -d /proc/sys/fs/quota ]; then
  66         tst_resm TCONF "Quota not supported in kernel!"
  67         exit 0
  68 fi
  69
  70 die()
  71 {
  72         echo >&2 $2
  73         umount 2>/dev/null $MNTDIR
  74         rm 2>/dev/null $IMAGE
  75         rmdir 2>/dev/null $MNTDIR
  76         tst_resm TFAIL "Quota on Remount Failed"
  77         exit $1
  78 }
  79
  80 cd $TMPDIR || die 2 "Cannot cd to $TMPDIR"
  81 IMAGE=ltp-$$-fs-image
  82 dd if=/dev/zero of=$IMAGE bs=4096 count=8000 2>/dev/null || die 2 "Cannot create filesystem image"
  83 mkfs.ext3 -q -F -b 4096 $IMAGE || die 2 "Could not create the filesystem"
  84 mkdir $MNTDIR || die 2 "Could not create the mountpoint"
  85 mount -t ext3 -o loop,usrquota,grpquota $IMAGE $MNTDIR || die 2 "Could not mount the filesystem"
  86 tst_resm TINFO "Successfully mounted the File System"
  87
  88 quotacheck -cug $MNTDIR || die 2 "Could not create quota files"
  89 tst_resm TINFO "Successfully Created Quota Files"
  90
  91 quotaon -ug $MNTDIR || die 2 "Could not turn quota on"
  92 tst_resm TINFO "Successfully Turned on Quota"
  93
  94 echo "blah" >$MNTDIR/file || die 2 "Could not write to the filesystem"
  95 tst_resm TINFO "Successfully wrote to the filesystem"
  96
  97 # Get current quota usage
  98 BLOCKS=`quota  -f $MNTDIR -v -w | tail -n 1 | sed -e 's/ *[^ ]* *\([0-9]*\) .*/\1/'`
  99 mount -o remount,ro $MNTDIR || die 1 "Could not remount read-only"
 100 tst_resm TINFO "Successfully Remounted Read-Only FS"
 101
 102 mount -o remount,rw $MNTDIR || die 2 "Could not remount read-write"
 103 tst_resm TINFO "Successfully Remounted Read-Write FS"
 104
 105 rm $MNTDIR/file
 106 # Get quota usage after removing the file
 107 NEWBLOCKS=`quota  -f $MNTDIR -v -w | tail -n 1 | sed -e 's/ *[^ ]* *\([0-9]*\) .*/\1/'`
 108 # Has quota usage changed properly?
 109 if [ $BLOCKS -eq $NEWBLOCKS ]; then
 110   die 1 "Usage did not change after remount"
 111 fi
 112 tst_resm TINFO "Usage successfully Changed after Remount"
 113 tst_resm TPASS "Quota on Remount Successfull"
 114
 115 umount $MNTDIR || die 2 "Could not umount $MNTDIR"
 116 rmdir $MNTDIR ||  die 2 "Could not remove $MNTDIR"
 117 rm $IMAGE
 118 exit 0