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apfstests/tests/xfs/328
T
Darrick J. Wong 7e98d41a6e fstests: move test group info to test files
Refactor every test in the entire test suite to use the new boilerplate
functions.  This also migrates all the test group information into the
test files.  This patch has been autogenerated via the command:

./tools/convert-group btrfs ceph cifs ext4 f2fs generic nfs ocfs2 overlay perf shared udf xfs

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Allison Henderson <allison.henderson@oracle.com>
Reviewed-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Eryu Guan <guaneryu@gmail.com>
2021-06-27 22:50:02 +08:00

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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. 328
#
# See how well xfs_fsr handles "defragging" a file with a hojillion extents.
#
. ./common/preamble
_begin_fstest auto quick clone fsr
# Import common functions.
. ./common/filter
. ./common/attr
. ./common/reflink
# real QA test starts here
_supported_fs xfs
_require_scratch_reflink
_require_cp_reflink
_require_test_program "punch-alternating"
_require_xfs_io_command "falloc" # used in FSR
_require_command "$XFS_FSR_PROG" "xfs_fsr"
rm -f "$seqres.full"
echo "Format and mount"
_scratch_mkfs > "$seqres.full" 2>&1
_scratch_mount >> "$seqres.full" 2>&1
testdir="$SCRATCH_MNT/test-$seq"
mkdir "$testdir"
# Setup for 16000 blocks, but we'll accept stress testing down to
# 2^10 blocks... that should be plenty for anyone.
fnr=$((12 + LOAD_FACTOR))
free_blocks=$(stat -f -c '%a' "$testdir")
blksz=$(_get_file_block_size $testdir)
space_avail=$((free_blocks * blksz))
calc_space()
{
blocks_needed=$(( 2 ** (fnr + 1) ))
space_needed=$((blocks_needed * blksz * 5 / 4))
}
calc_space
while test $space_needed -gt $space_avail; do
fnr=$((fnr - 1))
calc_space
done
test $fnr -lt 10 && _notrun "Insufficient space for stress test; would only create $blocks_needed extents."
bytes=$((blocks_needed * blksz))
echo "Create a many-block file"
echo "creating $blocks_needed blocks..." >> "$seqres.full"
_pwrite_byte 0x62 0 $blksz $testdir/file0 >> $seqres.full
$XFS_IO_PROG -f -c "pwrite -S 0x61 -b 4194304 0 $bytes" "$testdir/file1" >> "$seqres.full"
echo "punching..." >> "$seqres.full"
"$here/src/punch-alternating" "$testdir/file1" >> "$seqres.full"
seq 0 2 $((2 ** (fnr + 1) )) | while read lblk; do
_reflink_range $testdir/file0 0 $testdir/file1 $((lblk * blksz)) $blksz >> $seqres.full
done
echo "...done" >> "$seqres.full"
_scratch_cycle_mount
echo "Reflink the big file"
echo "reflinking $((blocks_needed / 2)) blocks, $((bytes / 2)) bytes" >> "$seqres.full"
_reflink_range "$testdir/file1" 0 "$testdir/file2" 0 $bytes >> "$seqres.full"
echo "Defrag the big file"
old_nextents=$(_count_extents $testdir/file1)
$XFS_FSR_PROG -v -d $testdir/file1 >> $seqres.full
new_nextents=$(_count_extents $testdir/file1)
echo "Check extent count"
$XFS_IO_PROG -c 'stat -v' $testdir/file1 >> $seqres.full
$XFS_IO_PROG -c 'stat -v' $testdir/file2 >> $seqres.full
echo "extents: $old_nextents -> $new_nextents" >> $seqres.full
test $old_nextents -gt $new_nextents || echo "FAIL: $old_nextents -> $new_nextents"
# success, all done
status=0
exit