| #! /bin/bash |
| # SPDX-License-Identifier: GPL-2.0 |
| # Copyright (c) 2009 Christoph Hellwig. |
| # |
| # FS QA Test No. 050 |
| # |
| # Check out various mount/remount/unmount scenarious on a read-only blockdev. |
| # |
| seqfull=$0 |
| . ./common/preamble |
| _begin_fstest shutdown mount auto quick |
| |
| # Override the default cleanup function. |
| _cleanup() |
| { |
| cd / |
| blockdev --setrw $SCRATCH_DEV |
| } |
| |
| # Import common functions. |
| . ./common/filter |
| |
| # real QA test starts here |
| _supported_fs generic |
| |
| _require_scratch_nocheck |
| _require_scratch_shutdown |
| _require_local_device $SCRATCH_DEV |
| _require_norecovery |
| |
| # Select appropriate output file |
| features="" |
| if ! _has_metadata_journaling $SCRATCH_DEV >/dev/null; then |
| features="nojournal" |
| elif [ "$FSTYP" = "xfs" ] && echo "$MOUNT_OPTIONS" | grep -q quota ; then |
| # Mounting with quota on XFS requires a writable fs, which means |
| # we expect to fail the ro blockdev test with with EPERM. |
| features="xfsquota" |
| fi |
| _link_out_file "$features" |
| |
| _scratch_mkfs >/dev/null 2>&1 |
| |
| # |
| # Mark the device read-only |
| # |
| echo "setting device read-only" |
| blockdev --setro $SCRATCH_DEV |
| |
| # |
| # Mount it, and make sure we can't write to it, and we can unmount it again |
| # |
| echo "mounting read-only block device:" |
| _try_scratch_mount 2>&1 | _filter_ro_mount | _filter_scratch |
| if [ "${PIPESTATUS[0]}" -eq 0 ]; then |
| echo "touching file on read-only filesystem (should fail)" |
| touch $SCRATCH_MNT/foo 2>&1 | _filter_scratch |
| fi |
| |
| # |
| # Apparently this used to be broken at some point: |
| # http://oss.sgi.com/bugzilla/show_bug.cgi?id=807 |
| # |
| echo "unmounting read-only filesystem" |
| _scratch_unmount 2>&1 | _filter_scratch | _filter_ending_dot |
| |
| echo "setting device read-write" |
| blockdev --setrw $SCRATCH_DEV |
| |
| echo "mounting read-write block device:" |
| _try_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:" |
| _scratch_shutdown -f |
| |
| echo "unmounting shutdown filesystem:" |
| _scratch_unmount 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:" |
| _try_scratch_mount 2>&1 | _filter_ro_mount | _filter_scratch |
| |
| echo "unmounting read-only filesystem" |
| _scratch_unmount 2>&1 | _filter_scratch | _filter_ending_dot |
| |
| # |
| # This is the way out if the underlying device really is read-only. |
| # Doesn't mean it's a good idea in practice, more a last resort |
| # data recovery hack. |
| # |
| echo "mounting filesystem with -o norecovery on a read-only device:" |
| _try_scratch_mount -o norecovery 2>&1 | _filter_ro_mount | _filter_scratch |
| echo "unmounting read-only filesystem" |
| _scratch_unmount 2>&1 | _filter_scratch | _filter_ending_dot |
| |
| 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:" |
| _try_scratch_mount -o ro 2>&1 | _filter_scratch |
| |
| # success, all done |
| echo "*** done" |
| status=0 |