mirror of
https://github.com/linux-apfs/apfstests.git
synced 2026-05-01 15:01:44 -07:00
Eryu Guan
69eb6281a9
Previously _scratch_mount didn't check the mount status and most tests continue to run even if the mount failed (unless test checks for the mount status explicitly). This would result in running tests on the underlying filesystem (usually rootfs) and implicit test failures, and such failures can be annoying and are usually hard to debug. Now _fail test by default if _scratch_mount failed and introduce _try_scratch_mount for tests that need to check mount results themselves. Suggested-by: Andreas Gruenbacher <agruenba@redhat.com> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Andreas Gruenbacher <agruenba@redhat.com> Signed-off-by: Eryu Guan <eguan@redhat.com>
146 lines
4.2 KiB
Bash
Executable File
146 lines
4.2 KiB
Bash
Executable File
#! /bin/bash
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# FS QA Test 077
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#
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# test UUID modification of CRC-enabled filesystems
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#
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# CRC-enabled / V5 superblock filesystems have a UUID stamped into
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# every piece of metadata, and a mechanism was added later to allow
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# changing the user-visible UUID by copying the original UUID (which
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# matches all the existing metadata) to a new superblock location.
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# Exercise some of that behavior.
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#
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#-----------------------------------------------------------------------
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# Copyright (c) 2015 Red Hat, Inc. All Rights Reserved.
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License as
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# published by the Free Software Foundation.
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#
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# This program is distributed in the hope that it would be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write the Free Software Foundation,
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# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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#-----------------------------------------------------------------------
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#
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seq=`basename $0`
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seqres=$RESULT_DIR/$seq
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echo "QA output created by $seq"
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here=`pwd`
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tmp=/tmp/$$
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status=1 # failure is the default!
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trap "_cleanup; exit \$status" 0 1 2 3 15
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_cleanup()
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{
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cd /
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rm -f $tmp.*
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}
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# get standard environment, filters and checks
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. ./common/rc
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. ./common/filter
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# real QA test starts here
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_supported_fs xfs
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_supported_os Linux
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# xfs_copy does not support realtime devices
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_require_no_realtime
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_require_scratch
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_require_xfs_crc
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_require_meta_uuid
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# Takes 2 args, 2nd optional:
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# 1: generate, rewrite, or restore
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# 2: Expected UUID after the action. Blank if new uuid generated
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# After the action check the fs, and make sure it can be mounted
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# Sets NEW_UUID to the resulting UUID.
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_test_uuid()
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{
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ACTION=$1
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EXPECTED_UUID=$2
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_scratch_xfs_db -x -c "uuid $ACTION" \
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| _filter_uuid $EXPECTED_UUID
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NEW_UUID=`_scratch_xfs_db -c "uuid" | awk '{print $NF}'`
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_check_scratch_fs
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_try_scratch_mount || _fail "Mount failed after UUID $ACTION"
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_scratch_unmount
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}
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_fs_has_META_UUID()
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{
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FS=$1
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$XFS_DB_PROG -r -c version $FS | grep -q META_UUID
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}
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rm -f $seqres.full
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_scratch_mkfs_xfs -m crc=1 >> $seqres.full 2>&1 || _fail "mkfs failed"
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ORIG_UUID=`_scratch_xfs_db -c "uuid" | awk '{print $NF}'`
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_scratch_mount
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# Put some stuff on the fs
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$FSSTRESS_PROG -d $SCRATCH_MNT -n 100 -p 4 >> $seqres.full 2>&1
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_scratch_unmount
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# Can xfs_db change it?
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echo "== Generate new UUID"
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_test_uuid generate
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[ "$NEW_UUID" == "$ORIG_UUID" ] && _fail "Failed to change UUID"
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_fs_has_META_UUID $SCRATCH_DEV || _fail "META_UUID feature not set"
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# This should be a no-op
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echo "== Rewrite UUID"
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_test_uuid rewrite $NEW_UUID
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_fs_has_META_UUID $SCRATCH_DEV || _fail "META_UUID feature not set"
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# Can we change it back?
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echo "== Restore old UUID"
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_test_uuid restore $ORIG_UUID
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[ "$NEW_UUID" != "$ORIG_UUID" ] && _fail "Failed to restore UUID"
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_fs_has_META_UUID $SCRATCH_DEV && _fail "META_UUID feature should not be not set"
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# This should be a no-op too.
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echo "== Rewrite UUID"
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_test_uuid rewrite $ORIG_UUID
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_fs_has_META_UUID $SCRATCH_DEV && _fail "META_UUID feature should not be not set"
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# Ok, now what does xfs_copy do; it changes UUID by default
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IMGFILE=$TEST_DIR/$seq.copy.img
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rm -f $IMGFILE
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# xfs_copy changes the UUID by default
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echo "== xfs_copy with new UUID"
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$XFS_COPY_PROG $SCRATCH_DEV $IMGFILE 2>&1 >> $seqres.full || \
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_fail "xfs_copy (new UUID) failed"
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_check_xfs_filesystem $IMGFILE none none || _fail "Copy looks corrupted"
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# The copy should have META_UUID feature set
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_fs_has_META_UUID $IMGFILE || _fail "META_UUID feature not set on copy"
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_try_scratch_mount || _fail "Mount failed after UUID rewrite"
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_scratch_unmount
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rm -f $IMGFILE
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# duplicating the UUID should be fine too
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echo "== xfs_copy with duplicate UUID"
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$XFS_COPY_PROG -d $SCRATCH_DEV $IMGFILE 2>&1 >> $seqres.full || \
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_fail "xfs_copy (duplicate) failed"
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_check_xfs_filesystem $IMGFILE none none || _fail "Duplicate copy looks corrupted"
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# The copy should not have META_UUID feature set
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_fs_has_META_UUID $IMGFILE && _fail "META_UUID feature should not be set on copy"
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# success, all done
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status=0
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exit
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