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>
129 lines
4.1 KiB
Bash
Executable File
129 lines
4.1 KiB
Bash
Executable File
#! /bin/bash
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# FS QA Test No. 012
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#
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# Test btrfs-convert
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#
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# 1) create ext4 filesystem & populate it
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# 2) convert it to btrfs, mount it, verify contents
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# 3) verify archived ext4 image integriy & contents
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# 4) populate btrfs fs with new data
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# 5) roll back conversion to original ext4
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# 6) verify rolled-back fs integrity & contents
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#
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#-----------------------------------------------------------------------
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# Copyright (c) 2013 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 $tmp.*
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}
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# get standard environment, filters and checks
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. ./common/rc
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. ./common/filter.btrfs
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# real QA test starts here
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# Modify as appropriate.
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_supported_fs btrfs
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_supported_os Linux
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_require_scratch_nocheck
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_require_command "$BTRFS_CONVERT_PROG" btrfs-convert
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_require_command "$MKFS_EXT4_PROG" mkfs.ext4
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_require_command "$E2FSCK_PROG" e2fsck
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rm -f $seqres.full
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BLOCK_SIZE=`_get_block_size $TEST_DIR`
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# Create & populate an ext4 filesystem
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$MKFS_EXT4_PROG -F -b $BLOCK_SIZE $SCRATCH_DEV > $seqres.full 2>&1 || \
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_notrun "Could not create ext4 filesystem"
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# Manual mount so we don't use -t btrfs or selinux context
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mount -t ext4 $SCRATCH_DEV $SCRATCH_MNT
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cp -aR /lib/modules/`uname -r`/ $SCRATCH_MNT
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_scratch_unmount
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# Convert it to btrfs, mount it, verify the data
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$BTRFS_CONVERT_PROG $SCRATCH_DEV >> $seqres.full 2>&1 || \
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_fail "btrfs-convert failed"
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_try_scratch_mount || _fail "Could not mount new btrfs fs"
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# (Ignore the symlinks which may be broken/nonexistent)
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diff -r /lib/modules/`uname -r`/ $SCRATCH_MNT/`uname -r`/ 2>&1 | grep -vw "source\|build"
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# Old ext4 image file should exist & be consistent
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$E2FSCK_PROG -fn $SCRATCH_MNT/ext2_saved/image >> $seqres.full 2>&1 || \
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_fail "archived ext4 image is corrupt"
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# And the files in that image should match
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mkdir -p $SCRATCH_MNT/mnt
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mount -o loop $SCRATCH_MNT/ext2_saved/image $SCRATCH_MNT/mnt || \
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_fail "could not loop mount saved ext4 image"
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# Ignore the symlinks which may be broken/nonexistent
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diff -r /lib/modules/`uname -r`/ $SCRATCH_MNT/mnt/`uname -r`/ 2>&1 | grep -vw "source\|build"
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umount $SCRATCH_MNT/mnt
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# Now put some fresh data on the btrfs fs
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mkdir -p $SCRATCH_MNT/new
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cp -aR /lib/modules/`uname -r`/ $SCRATCH_MNT/new
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_scratch_unmount
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# Now restore the ext4 device
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$BTRFS_CONVERT_PROG -r $SCRATCH_DEV >> $seqres.full 2>&1 || \
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_fail "btrfs-convert rollback failed"
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# Check it again
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$E2FSCK_PROG -fn $SCRATCH_DEV >> $seqres.full 2>&1 || \
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_fail "restored ext4 image is corrupt"
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# Mount the un-converted ext4 device & check the contents
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mount -t ext4 $SCRATCH_DEV $SCRATCH_MNT
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# (Ignore the symlinks which may be broken/nonexistent)
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diff -r /lib/modules/`uname -r`/ $SCRATCH_MNT/`uname -r`/ 2>&1 | grep -vw "source\|build"
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_scratch_unmount
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# Convert it to btrfs, mount it and delete "ext2_saved"
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$BTRFS_CONVERT_PROG $SCRATCH_DEV >> $seqres.full 2>&1 || \
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_fail "btrfs-convert failed"
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_try_scratch_mount || _fail "Could not mount new btrfs fs"
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$BTRFS_UTIL_PROG subvolume delete $SCRATCH_MNT/ext2_saved >> $seqres.full 2>&1 ||
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_fail "failed to delete ext2_saved subvolume"
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_scratch_unmount
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# Now restore the ext4 device, expecting a failure
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$BTRFS_CONVERT_PROG -r $SCRATCH_DEV >> $seqres.full 2>&1
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[ $? -eq 1 ] || _fail "Failure is expected, but btrfs-convert returns with rollback complete"
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# success, all done
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status=0
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exit
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