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#! /bin/bash
# SPDX-License-Identifier: GPL-2.0
# Copyright (c) 2016, Oracle and/or its affiliates. All Rights Reserved.
#
# FS QA Test No. 327
#
# Create 100 reflinked files, CoW them all, and see if xfs_repair will
# clear the reflink flag. There was a buffer handling bug in xfs_repair
# that (fortunately) triggered asserts in the rmap code when clearing
# the reflink flag.
#
. ./common/preamble
_begin_fstest auto quick clone
# Override the default cleanup function.
_cleanup()
{
cd /
_scratch_unmount > /dev/null 2>&1
rm -rf $tmp.*
}
# Import common functions.
. ./common/filter
. ./common/reflink
# real QA test starts here
_supported_fs xfs
_require_cp_reflink
_require_scratch_reflink
nr=128 # spanning at least one inode chunk tickles a bug in xfs_repair
echo "Format filesystem"
_scratch_mkfs >/dev/null 2>&1
_scratch_mount >> $seqres.full
echo "Create files"
_pwrite_byte 0x66 0 1 $SCRATCH_MNT/file.0 >> $seqres.full
seq 1 $nr | while read i; do
_cp_reflink $SCRATCH_MNT/file.0 $SCRATCH_MNT/file.$i
done
sync
ino_0=$(stat -c '%i' $SCRATCH_MNT/file.0)
ino_64=$(stat -c '%i' $SCRATCH_MNT/file.64)
ino_128=$(stat -c '%i' $SCRATCH_MNT/file.128)
echo "Check filesystem"
_scratch_unmount
_scratch_xfs_db -c "inode $ino_0" -c print \
-c "inode $ino_64" -c print \
-c "inode $ino_128" -c print | grep reflink | sed -e 's/^v[0-9]*/vX/g'
_scratch_mount
echo "Check files"
for i in 0 $((nr / 2)) $nr; do
md5sum $SCRATCH_MNT/file.$i | _filter_scratch
$XFS_IO_PROG -c 'lsattr -v' $SCRATCH_MNT/file.$i >> $seqres.full
done
echo "CoW all files"
seq 1 $nr | while read i; do
echo m >> $SCRATCH_MNT/file.$i
done
echo "Repair filesystem"
_scratch_unmount
_repair_scratch_fs >> $seqres.full
_scratch_xfs_db -c "inode $ino_0" -c print \
-c "inode $ino_64" -c print \
-c "inode $ino_128" -c print | grep reflink | sed -e 's/^v[0-9]*/vX/g'
_scratch_mount
echo "Check files again"
for i in 0 $((nr / 2)) $nr; do
md5sum $SCRATCH_MNT/file.$i | _filter_scratch
$XFS_IO_PROG -c 'lsattr -v' $SCRATCH_MNT/file.$i >> $seqres.full
done
echo "Done"
# success, all done
status=0
exit
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