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apfstests/tests/xfs/010
T
Lukas Czerner ab1d756fe1 common: Check the file system consistency on SCRATCH_DEV
There are about 198 tests which requires scratch_dev, but does not check
the file system consistency afterwards. Xfstests infrastructure does not
do it automatically, so fix it by running _check_scratch_fs() after
each test that _require_scratch.

Also remove all the _check_scratch_fs() calls that are not actually needed
and will be covered by the check script.

Signed-off-by: Lukas Czerner <lczerner@redhat.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
2014-08-13 11:01:04 +10:00

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#!/bin/bash
# FS QA Test No. xfs/010
#
# Test xfs_repair of the free inode btree (finobt). Make a couple targeted
# corruptions and verify that xfs_repair detects and repairs the filesystem to
# a consistent state.
#
#-----------------------------------------------------------------------
# Copyright (c) 2014 Red Hat, Inc. All Rights Reserved.
#
# 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
#
#-----------------------------------------------------------------------
#
seq=`basename $0`
seqres=$RESULT_DIR/$seq
echo "QA output created by $seq"
here=`pwd`
tmp=/tmp/$$
status=1 # failure is the default!
# get standard environment, filters and checks
. ./common/rc
. ./common/filter
. ./common/repair
_cleanup()
{
cd /
umount $SCRATCH_MNT 2>/dev/null
rm -f $tmp.*
}
trap "_cleanup; exit \$status" 0 1 2 3 15
_sparse_inode_populate()
{
dir=$1
count=$2
for i in $(seq 0 $count)
do
touch $dir/$i
done
# Inode chunks are allocated 64 inodes at a time. If we remove 1 out of
# every 32 we allocated above, we'll end up leaving an inode or two free
# in each chunk. This ensures that most records are inserted into the
# finobt.
for i in $(seq 0 32 $count)
do
rm -f $dir/$i
done
}
_filter_dbval()
{
awk '{ print $3 }'
}
_corrupt_finobt_records()
{
dev=$1
# determine the root block of the finobt
free_root=`$XFS_DB_PROG -c "agi 0" -c "p free_root" $dev |
_filter_dbval`
# Corrupt a freecount value. This should never exceed 64.
$XFS_DB_PROG -x -c "fsb $free_root" -c "type inobt" \
-c "write recs[1].freecount 70" $dev
# Create a corrupted non-free record, which should never appear in the
# finobt.
$XFS_DB_PROG -x -c "fsb $free_root" -c "type inobt" \
-c "write recs[2].freecount 0" $dev
$XFS_DB_PROG -x -c "fsb $free_root" -c "type inobt" \
-c "write recs[2].free 0" $dev
}
_corrupt_finobt_root()
{
dev=$1
# nuke the agi finobt root fields
$XFS_DB_PROG -x -c "agi 0" -c "write free_root 0" $dev
$XFS_DB_PROG -x -c "agi 0" -c "write free_level 0" $dev
}
# real QA test starts here
_supported_fs xfs
_supported_os Linux
_require_scratch
_require_xfs_mkfs_finobt
_require_xfs_finobt
rm -f $seqres.full
_scratch_mkfs_xfs "-m crc=1,finobt=1 -d agcount=2" | _filter_mkfs 2>$seqres.full
# sparsely populate the fs such that we create records with free inodes
_scratch_mount
_sparse_inode_populate $SCRATCH_MNT 999
umount $SCRATCH_MNT
# corrupt some finobt records
_corrupt_finobt_records $SCRATCH_DEV
# repair should detect the inconsistencies
_scratch_xfs_repair 2>&1 | _filter_repair
_check_scratch_fs
# nuke the finobt root, repair will have to regenerate from the inobt
_corrupt_finobt_root $SCRATCH_DEV
_scratch_xfs_repair 2>&1 | _filter_repair
status=0
exit