This adds a testcase to test shrinking unused space as much
as possible in the last AG with background fsstress workload.
The expectation is that no crash happens with expected output.
Signed-off-by: Gao Xiang <hsiangkao@xxxxxxxxxx>
---
tests/xfs/522 | 125 ++++++++++++++++++++++++++++++++++++++++++++++
tests/xfs/522.out | 73 +++++++++++++++++++++++++++
tests/xfs/group | 1 +
3 files changed, 199 insertions(+)
create mode 100755 tests/xfs/522
create mode 100644 tests/xfs/522.out
diff --git a/tests/xfs/522 b/tests/xfs/522
new file mode 100755
index 00000000..e427a33a
--- /dev/null
+++ b/tests/xfs/522
@@ -0,0 +1,125 @@
+#! /bin/bash
+# SPDX-License-Identifier: GPL-2.0
+# Copyright (c) 2020 Red Hat, Inc. All Rights Reserved.
+#
+# FS QA Test 522
+#
+# XFS online shrinkfs-while-allocating tests
+#
+# This test attempts to shrink unused space as much as possible with
+# background fsstress workload. It will decrease the shrink size if
+# larger size fails. And totally repeat 6 times.
+#
+seq=`basename $0`
+seqres=$RESULT_DIR/$seq
+echo "QA output created by $seq"
+
+here=`pwd`
+tmp=/tmp/$$
+status=1 # failure is the default!
+trap "rm -f $tmp.*; exit \$status" 0 1 2 3 15
+
+# get standard environment, filters and checks
+. ./common/rc
+. ./common/filter
+
+_create_scratch()
+{
+ echo "*** mkfs"
+ _scratch_mkfs_xfs $@ | tee -a $seqres.full | _filter_mkfs 2>$tmp.mkfs
+ . $tmp.mkfs
+
+ echo "*** mount"
+ if ! _try_scratch_mount 2>/dev/null
+ then
+ echo "failed to mount $SCRATCH_DEV"
+ exit 1
+ fi
+
+ # fix the reserve block pool to a known size so that the enospc
+ # calculations work out correctly.
+ _scratch_resvblks 1024 > /dev/null 2>&1
+}
+
+_fill_scratch()
+{
+ $XFS_IO_PROG -f -c "resvsp 0 ${1}" $SCRATCH_MNT/resvfile
+}
+
+_stress_scratch()
+{
+ procs=3
+ nops=1000
+ # -w ensures that the only ops are ones which cause write I/O
+ FSSTRESS_ARGS=`_scale_fsstress_args -d $SCRATCH_MNT -w -p $procs \
+ -n $nops $FSSTRESS_AVOID`
+ $FSSTRESS_PROG $FSSTRESS_ARGS >> $seqres.full 2>&1 &
+}
+
+# real QA test starts here
+_supported_fs xfs
+_require_scratch
+_require_xfs_io_command "falloc"
+
+rm -f $seqres.full
+_scratch_mkfs_xfs | tee -a $seqres.full | _filter_mkfs 2>$tmp.mkfs
+. $tmp.mkfs # extract blocksize and data size for scratch device
+
+endsize=`expr 125 \* 1048576` # stop after shrinking this big
+[ `expr $endsize / $dbsize` -lt $dblocks ] || _notrun "Scratch device too small"
+
+nags=2
+totalcount=6
+
+while [ $totalcount -gt 0 ]; do
+ size=`expr 1010 \* 1048576` # 1010 megabytes initially
+ echo "*** creating scratch filesystem"
+ logblks=$(_scratch_find_xfs_min_logblocks -dsize=${size} -dagcount=${nags})
+
+ _create_scratch -lsize=${logblks}b -dsize=${size} -dagcount=${nags}
+
+ echo "*** using some initial space on scratch filesystem"
+ for i in `seq 125 -1 90`; do
+ fillsize=`expr $i \* 1048576`
+ out="$(_fill_scratch $fillsize 2>&1)"
+ echo "$out" | grep -q 'No space left on device' && continue
+ test -n "${out}" && echo "$out"
+ break
+ done
+
+ decsize=`expr 42 \* 1048576` # shrink in chunks of this size at most
+
+ echo "*** stressing filesystem"
+ while [ $size -gt $endsize ]; do
+ _stress_scratch
+ sleep 1
+
+ decb=`expr $decsize / $dbsize` # in data blocks
+ while [ $decb -gt 0 ]; do
+ sizeb=`expr $size / $dbsize - $decb`
+
+ xfs_growfs -D ${sizeb} $SCRATCH_MNT 2>&1 \
+ | tee -a $seqres.full | _filter_mkfs 2>$tmp.growfs > /dev/null
+
+ ret="${PIPESTATUS[0]}"
+ . $tmp.growfs
+
+ [ $ret -eq 0 ] && break
+
+ [ $decb -gt 100 ] && decb=`expr $decb + $RANDOM % 10`
+ decb=`expr $decb / 2`
+ done
+
+ wait
+ [ $decb -eq 0 ] && break
+
+ size=`expr $size - $decb \* $dbsize`
+ done
+
+ _scratch_unmount
+ _repair_scratch_fs >> $seqres.full
+ totalcount=`expr $totalcount - 1`
+done
+
+status=0
+exit
diff --git a/tests/xfs/522.out b/tests/xfs/522.out
new file mode 100644
index 00000000..03d512f5
--- /dev/null
+++ b/tests/xfs/522.out
@@ -0,0 +1,73 @@
+QA output created by 522
+meta-data=DDEV isize=XXX agcount=N, agsize=XXX blks
+data = bsize=XXX blocks=XXX, imaxpct=PCT
+ = sunit=XXX swidth=XXX, unwritten=X
+naming =VERN bsize=XXX
+log =LDEV bsize=XXX blocks=XXX
+realtime =RDEV extsz=XXX blocks=XXX, rtextents=XXX
+*** creating scratch filesystem
+*** mkfs
+meta-data=DDEV isize=XXX agcount=N, agsize=XXX blks
+data = bsize=XXX blocks=XXX, imaxpct=PCT
+ = sunit=XXX swidth=XXX, unwritten=X
+naming =VERN bsize=XXX
+log =LDEV bsize=XXX blocks=XXX
+realtime =RDEV extsz=XXX blocks=XXX, rtextents=XXX
+*** mount
+*** using some initial space on scratch filesystem
+*** stressing filesystem
+*** creating scratch filesystem
+*** mkfs
+meta-data=DDEV isize=XXX agcount=N, agsize=XXX blks
+data = bsize=XXX blocks=XXX, imaxpct=PCT
+ = sunit=XXX swidth=XXX, unwritten=X
+naming =VERN bsize=XXX
+log =LDEV bsize=XXX blocks=XXX
+realtime =RDEV extsz=XXX blocks=XXX, rtextents=XXX
+*** mount
+*** using some initial space on scratch filesystem
+*** stressing filesystem
+*** creating scratch filesystem
+*** mkfs
+meta-data=DDEV isize=XXX agcount=N, agsize=XXX blks
+data = bsize=XXX blocks=XXX, imaxpct=PCT
+ = sunit=XXX swidth=XXX, unwritten=X
+naming =VERN bsize=XXX
+log =LDEV bsize=XXX blocks=XXX
+realtime =RDEV extsz=XXX blocks=XXX, rtextents=XXX
+*** mount
+*** using some initial space on scratch filesystem
+*** stressing filesystem
+*** creating scratch filesystem
+*** mkfs
+meta-data=DDEV isize=XXX agcount=N, agsize=XXX blks
+data = bsize=XXX blocks=XXX, imaxpct=PCT
+ = sunit=XXX swidth=XXX, unwritten=X
+naming =VERN bsize=XXX
+log =LDEV bsize=XXX blocks=XXX
+realtime =RDEV extsz=XXX blocks=XXX, rtextents=XXX
+*** mount
+*** using some initial space on scratch filesystem
+*** stressing filesystem
+*** creating scratch filesystem
+*** mkfs
+meta-data=DDEV isize=XXX agcount=N, agsize=XXX blks
+data = bsize=XXX blocks=XXX, imaxpct=PCT
+ = sunit=XXX swidth=XXX, unwritten=X
+naming =VERN bsize=XXX
+log =LDEV bsize=XXX blocks=XXX
+realtime =RDEV extsz=XXX blocks=XXX, rtextents=XXX
+*** mount
+*** using some initial space on scratch filesystem
+*** stressing filesystem
+*** creating scratch filesystem
+*** mkfs
+meta-data=DDEV isize=XXX agcount=N, agsize=XXX blks
+data = bsize=XXX blocks=XXX, imaxpct=PCT
+ = sunit=XXX swidth=XXX, unwritten=X
+naming =VERN bsize=XXX
+log =LDEV bsize=XXX blocks=XXX
+realtime =RDEV extsz=XXX blocks=XXX, rtextents=XXX
+*** mount
+*** using some initial space on scratch filesystem
+*** stressing filesystem
diff --git a/tests/xfs/group b/tests/xfs/group
index b89c0a4e..ab762ed6 100644
--- a/tests/xfs/group
+++ b/tests/xfs/group
@@ -519,3 +519,4 @@
519 auto quick reflink
520 auto quick reflink
521 auto quick realtime growfs
+522 auto quick growfs
--
2.18.1
