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Eric Sandeen
5d88b638ff
In some cases selinux's creation of an xattr on the temporary fd creates a local xattr, but the file we are trying to defragment has attrs in extent format, and the forkoff mismatch will cause xfs_fsr to fail. This test demonstrates it; I have old patches sent to the list long ago that should fix it. I'll resend them soon. Signed-off-by: Eric Sandeen <sandeen@redhat.com> Reviewed-by: Eryu Guan <eguan@redhat.com> Signed-off-by: Rich Johnston <rjohnston@sgi.com>
89 lines
2.6 KiB
Bash
Executable File
89 lines
2.6 KiB
Bash
Executable File
#! /bin/bash
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# FS QA Test No. 300
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#
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# Test xfs_fsr / swapext management of di_forkoff w/ selinux
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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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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 $tmp.*
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}
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# get standard environment, filters and checks
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. ./common/rc
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. ./common/filter
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_require_scratch
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# real QA test starts here
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_supported_fs xfs
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_supported_os Linux
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getenforce | grep -q "Enforcing\|Permissive" || _notrun "SELinux not enabled"
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[ "$XFS_FSR_PROG" = "" ] && _notrun "xfs_fsr not found"
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rm -f $seqres.full
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_scratch_mkfs_xfs -i size=256 >> $seq.full 2>&1 || _fail "mkfs failed"
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# Manually mount to avoid fs-wide context set by default in xfstests
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mount $SCRATCH_DEV $SCRATCH_MNT
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touch $SCRATCH_MNT/$seq.test
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# Create an extents-format attribute on a file
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$XFS_IO_PROG -f -c "pwrite -S 0x63 0 4096" $SCRATCH_MNT/attrvals >> $seqres.full 2>&1
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cat $SCRATCH_MNT/attrvals | attr -s name $SCRATCH_MNT/$seq.test >> $seqres.full 2>&1
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# Fragment the file by writing backwards
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for I in `seq 6 -1 0`; do
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dd if=/dev/zero of=$SCRATCH_MNT/$seq.test seek=$I bs=4k \
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oflag=direct count=1 conv=notrunc >> $seqres.full 2>&1
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done
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# See if xfs_fsr works.
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# The target file now has a non-local attribute, but the
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# fsr temp file gets assigned a local attribute on creation,
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# due to selinux.
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# In this case, the large-ish selinux attr will create a forkoff
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# in the temp file smaller than the forkoff in the target file,
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# because the FMT_EXTENTS attr takes up less space. If there is
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# no mechanism to grow the temp forkoff to match, we can end up
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# failing to swap these 2 inodes if the result is not enough
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# data space in the temp inode as a result.
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$XFS_FSR_PROG -v $SCRATCH_MNT/$seq.test | _filter_scratch
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# success, all done
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status=0
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exit
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