tests/generic/050

   1 #! /bin/bash
   2 # SPDX-License-Identifier: GPL-2.0
   3 # Copyright (c) 2009 Christoph Hellwig.
   4 #
   5 # FS QA Test No. 050
   6 #
   7 # Check out various mount/remount/unmount scenarious on a read-only blockdev.
   8 #
   9 seqfull=$0
  10 . ./common/preamble
  11 _begin_fstest shutdown mount auto quick
  12
  13 # Override the default cleanup function.
  14 _cleanup()
  15 {
  16         cd /
  17         blockdev --setrw $SCRATCH_DEV
  18 }
  19
  20 # Import common functions.
  21 . ./common/filter
  22
  23 # real QA test starts here
  24 _supported_fs generic
  25
  26 _require_scratch_nocheck
  27 _require_scratch_shutdown
  28 _require_local_device $SCRATCH_DEV
  29 _require_norecovery
  30
  31 # Select appropriate output file
  32 features=""
  33 if ! _has_metadata_journaling $SCRATCH_DEV >/dev/null; then
  34         features="nojournal"
  35 elif [ "$FSTYP" = "xfs" ] && echo "$MOUNT_OPTIONS" | grep -q quota ; then
  36         # Mounting with quota on XFS requires a writable fs, which means
  37         # we expect to fail the ro blockdev test with with EPERM.
  38         features="xfsquota"
  39 fi
  40 _link_out_file "$features"
  41
  42 _scratch_mkfs >/dev/null 2>&1
  43
  44 #
  45 # Mark the device read-only
  46 #
  47 echo "setting device read-only"
  48 blockdev --setro $SCRATCH_DEV
  49
  50 #
  51 # Mount it, and make sure we can't write to it, and we can unmount it again
  52 #
  53 echo "mounting read-only block device:"
  54 _try_scratch_mount 2>&1 | _filter_ro_mount | _filter_scratch
  55 if [ "${PIPESTATUS[0]}" -eq 0 ]; then
  56         echo "touching file on read-only filesystem (should fail)"
  57         touch $SCRATCH_MNT/foo 2>&1 | _filter_scratch
  58 fi
  59
  60 #
  61 # Apparently this used to be broken at some point:
  62 #       http://oss.sgi.com/bugzilla/show_bug.cgi?id=807
  63 #
  64 echo "unmounting read-only filesystem"
  65 _scratch_unmount 2>&1 | _filter_scratch | _filter_ending_dot
  66
  67 echo "setting device read-write"
  68 blockdev --setrw $SCRATCH_DEV
  69
  70 echo "mounting read-write block device:"
  71 _try_scratch_mount 2>&1 | _filter_scratch
  72
  73 echo "touch files"
  74 touch $SCRATCH_MNT/{0,1,2,3,4,5,6,7,8,9}{0,1,2,3,4,5,6,7,8,9}
  75
  76 echo "going down:"
  77 _scratch_shutdown -f
  78
  79 echo "unmounting shutdown filesystem:"
  80 _scratch_unmount 2>&1 | _filter_scratch
  81
  82 echo "setting device read-only"
  83 blockdev --setro $SCRATCH_DEV
  84
  85 #
  86 # Mounting a filesystem that requires log-recovery fails unless
  87 # -o norecovery is used.
  88 #
  89 echo "mounting filesystem that needs recovery on a read-only device:"
  90 _try_scratch_mount 2>&1 | _filter_ro_mount | _filter_scratch
  91
  92 echo "unmounting read-only filesystem"
  93 _scratch_unmount 2>&1 | _filter_scratch | _filter_ending_dot
  94
  95 #
  96 # This is the way out if the underlying device really is read-only.
  97 # Doesn't mean it's a good idea in practice, more a last resort
  98 # data recovery hack.
  99 #
 100 echo "mounting filesystem with -o norecovery on a read-only device:"
 101 _try_scratch_mount -o norecovery 2>&1 | _filter_ro_mount | _filter_scratch
 102 echo "unmounting read-only filesystem"
 103 _scratch_unmount 2>&1 | _filter_scratch | _filter_ending_dot
 104
 105 echo "setting device read-write"
 106 blockdev --setrw $SCRATCH_DEV
 107
 108 #
 109 # But log recovery is performed when mount with -o ro as long as
 110 # the underlying device is not write protected.
 111 #
 112 echo "mounting filesystem that needs recovery with -o ro:"
 113 _try_scratch_mount -o ro 2>&1 | _filter_scratch
 114
 115 # success, all done
 116 echo "*** done"
 117 status=0