| #! /bin/bash |
| # FS QA Test No. 200 |
| # |
| # Check out various mount/remount/unmount scenarious on a read-only blockdev. |
| # |
| #----------------------------------------------------------------------- |
| # Copyright (c) 2009 Christoph Hellwig. |
| # |
| # This program is free software; you can redistribute it and/or |
| # modify it under the terms of the GNU General Public License as |
| # published by the Free Software Foundation. |
| # |
| # This program is distributed in the hope that it would be useful, |
| # but WITHOUT ANY WARRANTY; without even the implied warranty of |
| # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| # GNU General Public License for more details. |
| # |
| # You should have received a copy of the GNU General Public License |
| # along with this program; if not, write the Free Software Foundation, |
| # Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| #----------------------------------------------------------------------- |
| # |
| # creator |
| owner=hch@lst.de |
| |
| seq=`basename $0` |
| echo "QA output created by $seq" |
| |
| here=`pwd` |
| tmp=/tmp/$$ |
| status=1 # failure is the default! |
| |
| _cleanup() |
| { |
| cd / |
| blockdev --setrw $SCRATCH_DEV |
| } |
| trap "_cleanup; exit \$status" 0 1 2 3 15 |
| |
| # get standard environment, filters and checks |
| . ./common.rc |
| . ./common.filter |
| |
| # real QA test starts here |
| _supported_fs xfs |
| _supported_os Linux |
| |
| _require_scratch |
| |
| _scratch_mkfs_xfs >/dev/null 2>&1 |
| |
| # |
| # Mark the device read-only |
| # |
| echo "setting device read-only" |
| blockdev --setro $SCRATCH_DEV |
| |
| # |
| # Mount it, and make sure we can't write to it, and we can unmount it again |
| # |
| echo "mounting read-only block device:" |
| _scratch_mount 2>&1 | _filter_scratch |
| |
| echo "touching file on read-only filesystem (should fail)" |
| touch $SCRATCH_MNT/foo 2>&1 | _filter_scratch |
| |
| # |
| # Apparently this used to be broken at some point: |
| # http://oss.sgi.com/bugzilla/show_bug.cgi?id=807 |
| # |
| echo "unmounting read-only filesystem" |
| umount $SCRATCH_MNT 2>&1 | _filter_scratch |
| |
| echo "setting device read-write" |
| blockdev --setrw $SCRATCH_DEV |
| |
| echo "mounting read-write block device:" |
| _scratch_mount 2>&1 | _filter_scratch |
| |
| echo "touch files" |
| touch $SCRATCH_MNT/{0,1,2,3,4,5,6,7,8,9}{0,1,2,3,4,5,6,7,8,9} |
| |
| echo "going down:" |
| src/godown -f $SCRATCH_MNT |
| |
| echo "unmounting shutdown filesystem:" |
| umount $SCRATCH_MNT 2>&1 | _filter_scratch |
| |
| echo "setting device read-only" |
| blockdev --setro $SCRATCH_DEV |
| |
| # |
| # Mounting a filesystem that requires log-recovery fails unless |
| # -o norecovery is used. |
| # |
| echo "mounting filesystem that needs recovery on a read-only device:" |
| _scratch_mount 2>&1 | _filter_scratch |
| |
| echo "unmounting read-only filesystem" |
| umount $SCRATCH_MNT 2>&1 | _filter_scratch |
| |
| # |
| # This is the way out if the underlying device really is read-only. |
| # Doesn't mean it's a good idea in practive, more a last resort |
| # data recovery hack. |
| # |
| echo "mounting filesystem with -o norecovery on a read-only device:" |
| _scratch_mount -o norecovery 2>&1 | _filter_scratch |
| |
| echo "unmounting read-only filesystem" |
| umount $SCRATCH_MNT 2>&1 | _filter_scratch |
| |
| echo "setting device read-write" |
| blockdev --setrw $SCRATCH_DEV |
| |
| # |
| # But log recovery is performed when mount with -o ro as long as |
| # the underlying device is not write protected. |
| # |
| echo "mounting filesystem that needs recovery with -o ro:" |
| _scratch_mount -o ro 2>&1 | _filter_scratch |
| |
| |
| # success, all done |
| echo "*** done" |
| rm -f $seq.full |
| status=0 |