Date:   Mon, 18 Oct 2021 22:31:26 +0200
From:   Lukas Czerner <lczerner@...hat.com>
To:     "Darrick J. Wong" <djwong@...nel.org>
Cc:     fstests@...r.kernel.org, linux-ext4@...r.kernel.org
Subject: Re: [PATCH] ext4: add test for all ext4/ext3/ext2 mount options

On Mon, Oct 18, 2021 at 09:36:09AM -0700, Darrick J. Wong wrote:
> On Mon, Oct 18, 2021 at 03:00:01PM +0200, Lukas Czerner wrote:
> > Add test to validate that all the ext4, ext3 and ext2 are properly
> > recognized, validate and applied to avoid regressions as ext4 moves to
> > the new mount API.
> > 
> > Signed-off-by: Lukas Czerner <lczerner@...hat.com>
> > ---
> >  tests/ext4/053     | 598 +++++++++++++++++++++++++++++++++++++++++++++
> >  tests/ext4/053.out |   2 +
> >  2 files changed, 600 insertions(+)
> >  create mode 100755 tests/ext4/053
> >  create mode 100644 tests/ext4/053.out
> > 
> > diff --git a/tests/ext4/053 b/tests/ext4/053
> > new file mode 100755
> > index 00000000..7e777554
> > --- /dev/null
> > +++ b/tests/ext4/053
> > @@ -0,0 +1,598 @@
> > +#! /bin/bash
> > +# SPDX-License-Identifier: GPL-2.0
> > +# Copyright (c) 2021 Red Hat, Inc., Lukas Czerner <lczerner@...hat.com>.
> > +#
> > +# FS QA Test 053
> > +#
> > +# Sanity check of ext4 mount options
> > +#
> > +. ./common/preamble
> > +_begin_fstest auto mount
> > +
> > +seq=`basename $0`
> > +seqres=$RESULT_DIR/$seq
> > +
> > +here=`pwd`
> > +tmp=/tmp/$$
> > +status=1	# failure is the default!
> > +trap "_cleanup; exit \$status" 0 1 2 3 15
> > +
> > +_cleanup()
> > +{
> > +	cd /
> > +	$UMOUNT_PROG $SCRATCH_MNT > /dev/null 2>&1
> > +	if [ -n "$LOOP_LOGDEV" ];then
> > +		_destroy_loop_device $LOOP_LOGDEV 2>/dev/null
> > +	fi
> > +	rm -f $tmp.*
> > +}
> > +
> > +# get standard environment, filters and checks
> > +. ./common/rc
> > +. ./common/filter
> > +. ./common/quota
> > +
> > +# remove previous $seqres.full before test
> > +rm -f $seqres.full
> > +
> > +echo "Silence is golden."
> > +
> > +SIZE=$((1024 * 1024))	# 1GB in KB
> > +LOGSIZE=$((10 *1024))	# 10MB in KB
> > +
> > +_supported_fs ext2 ext3 ext4
> > +_require_scratch_size $SIZE
> > +_require_quota
> > +_require_loop
> > +_require_command "$TUNE2FS_PROG" tune2fs
> > +MKE2FS_PROG=$(type -P mke2fs)
> > +_require_command "$MKE2FS_PROG" mke2fs
> > +
> > +LOG=""
> > +print_log() {
> > +	LOG="$LOG $@"
> > +}
> > +
> > +KERNEL_VERSION=`uname -r | cut -d'.' -f1,2`
> > +kernel_gte() {
> > +	gte=`echo "$KERNEL_VERSION >= $1" | $BC_PROG`
> > +	[ $gte -eq 1 ] && return 0
> > +	return 1
> > +}
> > +
> > +# This test is only relevant for the newer kernel
> > +kernel_gte 4.19 || _notrun "This test is only relevant for kernel versions 4.19 and higher"
> 
> What was so magic about 4.19?

Oh let me tell you about the good olde days :) No seriously, there is
nothing magical about it. Back when I wrote the test it seemed like good
point where to stop looking further in the history of ext4 mount
options. So it is likely completely arbitraty.

Realistically we only really care about the changes we might introduce
from now on. There is no point in testing older kernels with this I don't
think, so I could as well set it to something more recent which would
have the benefit of getting rid of more, most, or even all of the
kernel_gte() check if that's preferable. It's probably a good idea to do
so when I think about it.

> 
> Regarding the other tests that are gated on kernel_gte: aren't there
> other ways to find out if the kernel actually supports those features?

Strictly speaking it's not about features but mount options and no, as
far as I can tell there is no way to reliably tell what mount options
are supported, other than just try it out, or look it up in the code.

-Lukas

> 
> --D
> 
> > +
> > +IGNORED="remount,defaults,ignored,removed"
> > +CHECK_MINFO="lazytime,noatime,nodiratime,noexec,nosuid,ro"
> > +ERR=0
> > +
> > +test_mnt() {
> > +	findmnt -n $SCRATCH_DEV > /dev/null 2>&1
> > +	[ $? -ne 0 ] && return $?
> > +
> > +	if [ $# -eq 1 ]; then
> > +		OPTS=$1
> > +	elif [ $# -eq 2 ]; then
> > +		OPTS=$2
> > +	else
> > +		return 0
> > +	fi
> > +
> > +	print_log "checking \"$OPTS\" "
> > +	# test options in /proc/fs/ext4/dev/options
> > +	(
> > +	ret=0
> > +	IFS=','
> > +	for option in $OPTS; do
> > +		if echo $IGNORED | grep -w $option; then
> > +			continue
> > +		fi
> > +
> > +		[ $option = "noload" ] && option="norecovery"
> > +
> > +		if [[ $option = ^* ]]; then
> > +			expected=1
> > +		else
> > +			expected=0
> > +		fi
> > +		option=${option#^}
> > +
> > +		if echo $CHECK_MINFO | grep -w $option; then
> > +			findmnt -n -o OPTIONS $SCRATCH_DEV | grep $option
> > +			ret=$?
> > +		else
> > +			grep $option /proc/fs/ext4/$(_short_dev $SCRATCH_DEV)/options
> > +			ret=$?
> > +		fi
> > +
> > +		if [ $ret -ne $expected ]; then
> > +			exit 1
> > +		fi
> > +	done
> > +	) > /dev/null 2>&1
> > +	return $?
> > +}
> > +
> > +fail() {
> > +	print_log "   FAILED"
> > +	ERR=$((ERR+1))
> > +	echo $LOG | tee -a $seqres.full
> > +	LOG=""
> > +}
> > +
> > +ok() {
> > +	print_log "   OK"
> > +	echo $LOG >> $seqres.full
> > +	LOG=""
> > +}
> > +
> > +simple_mount() {
> > +	_mount $* >> $seqres.full 2>&1
> > +}
> > +
> > +# $1 - can hold -n option, if it does argumetns are shifted
> > +# $1 - options to test
> > +# $2 - if provided it's the option string to check for
> > +do_mnt() {
> > +	device=$SCRATCH_DEV
> > +	# If -n argument is provided do not specify $SCRATCH_DEV
> > +	# usefull for remount
> > +	if [ "$1" == "-n" ]; then
> > +		unset device
> > +		shift
> > +	fi
> > +
> > +	if [ -z "$1" ]; then
> > +		simple_mount $device $SCRATCH_MNT
> > +		ret=$?
> > +	else
> > +		simple_mount -o $1 $device $SCRATCH_MNT
> > +		ret=$?
> > +	fi
> > +	if [ $ret -eq 0 ]; then
> > +		test_mnt $1 $2
> > +		ret=$?
> > +		[ $ret -ne 0 ] && print_log "(not found)"
> > +	else
> > +		print_log "(failed mount)"
> > +	fi
> > +
> > +	return $ret
> > +}
> > +
> > +not_mnt() {
> > +	# We don't need -t not not_ variant
> > +	if [ "$1" == "-t" ]; then
> > +		shift
> > +	fi
> > +
> > +	print_log "SHOULD FAIL mounting $fstype \"$1\" "
> > +	do_mnt $@
> > +	if [ $? -eq 0 ]; then
> > +		fail
> > +	else
> > +		ok
> > +	fi
> > +	$UMOUNT_PROG $SCRATCH_MNT 2> /dev/null
> > +}
> > +
> > +_mnt() {
> > +	print_log "mounting $fstype \"$1\" "
> > +	do_mnt $@
> > +	if [ $? -ne 0 ]; then
> > +		fail
> > +	else
> > +		ok
> > +	fi
> > +}
> > +
> > +mnt() {
> > +	# Do we need to run the tune2fs mount option test ?
> > +	t2fs=0
> > +	if [ "$1" == "-t" ]; then
> > +		t2fs=1
> > +		shift
> > +	fi
> > +
> > +	_mnt $*
> > +	$UMOUNT_PROG $SCRATCH_MNT 2> /dev/null
> > +
> > +	[ "$t2fs" -eq 0 ] && return
> > +
> > +	op_set=$1
> > +	if [ $# -eq 1 ]; then
> > +		check=$1
> > +	elif [ $# -eq 2 ]; then
> > +		check=$2
> > +	else
> > +		return 0
> > +	fi
> > +
> > +	# some options need translation for tune2fs
> > +	op_set=$(echo $op_set | sed -e 's/data=journal/journal_data/' \
> > +				    -e 's/data=ordered/journal_data_ordered/' \
> > +				    -e 's/data=writeback/journal_data_writeback/')
> > +	$TUNE2FS_PROG -o $op_set $SCRATCH_DEV > /dev/null 2>&1
> > +	_mnt "defaults" $check
> > +	$UMOUNT_PROG $SCRATCH_MNT 2> /dev/null
> > +	if [ "$op_set" = ^* ]; then
> > +		op_set=${op_set#^}
> > +	else
> > +		op_set="^${op_set}"
> > +	fi
> > +	$TUNE2FS_PROG -o $op_set $SCRATCH_DEV > /dev/null 2>&1
> > +}
> > +
> > +# $1 - options to mount with
> > +# $2 - options to remount with
> > +remount() {
> > +	# First do this specifying both dev and mnt
> > +	print_log "mounting $fstype \"$1\" "
> > +	do_mnt $1
> > +	[ $? -ne 0 ] && fail && return
> > +	print_log "remounting \"$2\" "
> > +	do_mnt remount,$2 $3
> > +	if [ $? -ne 0 ]; then
> > +		fail
> > +		$UMOUNT_PROG $SCRATCH_MNT 2> /dev/null
> > +		return
> > +	else
> > +		ok
> > +	fi
> > +	$UMOUNT_PROG $SCRATCH_MNT 2> /dev/null
> > +
> > +	# Now just specify mnt
> > +	print_log "mounting $fstype \"$1\" "
> > +	do_mnt $1
> > +	[ $? -ne 0 ] && fail && return
> > +	print_log "remounting (MNT ONLY) \"$2\" "
> > +	do_mnt -n remount,$2 $3
> > +	if [ $? -ne 0 ]; then
> > +		fail
> > +	else
> > +		ok
> > +	fi
> > +
> > +	$UMOUNT_PROG $SCRATCH_MNT 2> /dev/null
> > +}
> > +
> > +# $1 - options to mount with, or -r argument
> > +# $2 - options to remount with
> > +_not_remount() {
> > +	remount_only=0
> > +	# If -r is specified we're going to do remount only
> > +	if [ "$1" == "-r" ]; then
> > +		remount_only=1
> > +		# Dont need shift since first argument would
> > +		# have been consumed by mount anyway
> > +	fi
> > +
> > +	if [ $remount_only -eq 0 ]; then
> > +		print_log "mounting $fstype \"$1\" "
> > +		do_mnt $1
> > +		[ $? -ne 0 ] && fail && return
> > +	fi
> > +	print_log "SHOULD FAIL remounting $fstype \"$2\" "
> > +	do_mnt remount,$2 $3
> > +	if [ $? -eq 0 ]; then
> > +		fail
> > +	else
> > +		ok
> > +	fi
> > +
> > +	# Now just specify mnt
> > +	print_log "SHOULD FAIL remounting $fstype (MNT ONLY) \"$2\" "
> > +	do_mnt -n remount,$2 $3
> > +	if [ $? -eq 0 ]; then
> > +		fail
> > +	else
> > +		ok
> > +	fi
> > +}
> > +
> > +not_remount() {
> > +	_not_remount $*
> > +	$UMOUNT_PROG $SCRATCH_MNT 2> /dev/null
> > +}
> > +
> > +
> > +do_mkfs() {
> > +	$MKE2FS_PROG -T $fstype -Fq $* >> $seqres.full 2>&1 ||
> > +	_fail "mkfs failed - $MKFS_EXT4_PROG -Fq $* $SCRATCH_DEV"
> > +}
> > +
> > +not_ext2() {
> > +	if [[ $fstype == "ext2" ]]; then
> > +		not_$*
> > +	else
> > +		$*
> > +	fi
> > +}
> > +
> > +only_ext4() {
> > +	if [[ $fstype == "ext4" ]]; then
> > +		$*
> > +	else
> > +		not_$*
> > +	fi
> > +}
> > +
> > +# Create logdev for external journal
> > +LOOP_IMG=$tmp.logdev
> > +truncate -s ${LOGSIZE}k $LOOP_IMG
> > +LOOP_LOGDEV=`_create_loop_device $LOOP_IMG`
> > +majmin=`stat -c "%t:%T" $LOOP_LOGDEV`
> > +LOGDEV_DEVNUM=`echo "${majmin%:*}*2^8 + ${majmin#*:}" | bc`
> > +
> > +# Test all the extN file system supported by ext4 driver
> > +fstype=
> > +for fstype in ext2 ext3 ext4; do
> > +
> > +	$UMOUNT_PROG $SCRATCH_MNT 2> /dev/null
> > +	$UMOUNT_PROG $SCRATCH_DEV 2> /dev/null
> > +
> > +	do_mkfs $SCRATCH_DEV ${SIZE}k
> > +
> > +	# do we have fstype support ?
> > +	do_mnt
> > +	if [ $? -ne 0 ]; then
> > +		print_log "$fstype not supported. Skipping..."
> > +		ok
> > +		continue
> > +	fi
> > +	if [ ! -f /proc/fs/ext4/$(_short_dev $SCRATCH_DEV)/options ]; then
> > +		print_log "$fstype not supported. Skipping..."
> > +		ok
> > +		continue
> > +	fi
> > +
> > +	$UMOUNT_PROG $SCRATCH_MNT 2> /dev/null
> > +
> > +	not_mnt failme
> > +	mnt
> > +	mnt bsddf
> > +	mnt minixdf
> > +	mnt grpid
> > +	mnt -t bsdgroups grpid
> > +	mnt nogrpid
> > +	mnt sysvgroups nogrpid
> > +	mnt resgid=1001
> > +	mnt resuid=1001
> > +	mnt sb=131072
> > +	mnt errors=continue
> > +	mnt errors=panic
> > +	mnt errors=remount-ro
> > +	mnt nouid32
> > +	mnt debug
> > +	mnt oldalloc removed
> > +	mnt orlov removed
> > +	mnt -t user_xattr
> > +	mnt nouser_xattr
> > +	mnt -t acl
> > +	not_ext2 mnt noload norecovery
> > +	mnt bh removed
> > +	mnt nobh removed
> > +	not_ext2 mnt commit=7
> > +	mnt min_batch_time=200
> > +	mnt max_batch_time=10000
> > +	only_ext4 mnt journal_checksum
> > +	only_ext4 mnt nojournal_checksum
> > +	only_ext4 mnt journal_async_commit,data=writeback
> > +	mnt abort ignored
> > +	not_ext2 mnt -t data=journal
> > +	not_ext2 mnt -t data=ordered
> > +	not_ext2 mnt -t data=writeback
> > +	not_ext2 mnt data_err=abort
> > +	not_ext2 mnt data_err=ignore ignored
> > +	mnt usrjquota=aquota.user,jqfmt=vfsv0
> > +	not_mnt usrjquota=aquota.user
> > +	mnt usrjquota= ignored
> > +	mnt grpjquota=aquota.group,jqfmt=vfsv0
> > +	not_mnt grpjquota=aquota.group
> > +	mnt grpjquota= ignored
> > +	mnt jqfmt=vfsold
> > +	mnt jqfmt=vfsv0
> > +	mnt jqfmt=vfsv1
> > +	mnt grpquota
> > +	mnt quota
> > +	mnt noquota
> > +	mnt usrquota
> > +	mnt grpquota
> > +	mnt barrier
> > +	mnt barrier=0 nobarrier
> > +	mnt barrier=1 barrier
> > +	mnt barrier=99 barrier
> > +	mnt -t nobarrier
> > +	mnt i_version
> > +	mnt stripe=512
> > +	only_ext4 mnt delalloc
> > +	only_ext4 mnt -t nodelalloc
> > +	mnt warn_on_error
> > +	mnt nowarn_on_error
> > +	not_mnt debug_want_extra_isize=512
> > +	mnt debug_want_extra_isize=32 ignored
> > +	mnt mblk_io_submit removed
> > +	mnt nomblk_io_submit removed
> > +	mnt -t block_validity
> > +	mnt noblock_validity
> > +	mnt inode_readahead_blks=16
> > +	not_ext2 mnt journal_ioprio=6 ignored
> > +	mnt auto_da_alloc=0 noauto_da_alloc
> > +	mnt auto_da_alloc=1 auto_da_alloc
> > +	mnt auto_da_alloc=95 auto_da_alloc
> > +	mnt auto_da_alloc
> > +	mnt noauto_da_alloc
> > +	only_ext4 mnt dioread_nolock
> > +	kernel_gte 5.6 && only_ext4 mnt nodioread_nolock
> > +	kernel_gte 5.6 && only_ext4 mnt dioread_lock nodioread_nolock
> > +	mnt -t discard
> > +	mnt nodiscard
> > +	mnt init_itable=20
> > +	mnt init_itable
> > +	mnt init_itable=0
> > +	mnt noinit_itable
> > +	mnt max_dir_size_kb=4096
> > +	mnt test_dummy_encryption
> > +	kernel_gte 5.7 && mnt test_dummy_encryption=v1
> > +	kernel_gte 5.7 && mnt test_dummy_encryption=v2
> > +	kernel_gte 5.7 && not_mnt test_dummy_encryption=v3
> > +	kernel_gte 5.7 && not_mnt test_dummy_encryption=
> > +	kernel_gte 5.8 && mnt inlinecrypt
> > +	kernel_gte 5.8 && not_mnt inlinecrypt
> > +	kernel_gte 5.12 && mnt prefetch_block_bitmaps removed
> > +	kernel_gte 5.12 && mnt no_prefetch_block_bitmaps
> > +	#kernel_gte 5.12 && mnt mb_optimize_scan=0
> > +	#kernel_gte 5.12 && mnt mb_optimize_scan=1
> > +	#kernel_gte 5.12 && not_mnt mb_optimize_scan=9
> > +	#kernel_gte 5.12 && not_mnt mb_optimize_scan=
> > +	mnt nombcache
> > +	mnt no_mbcache nombcache
> > +	mnt check=none removed
> > +	mnt nocheck removed
> > +	mnt reservation removed
> > +	mnt noreservation removed
> > +	mnt journal=20 ignored
> > +	not_mnt nonsenseoption
> > +	not_mnt nonsenseoption=value
> > +
> > +	# generic mount options
> > +	mnt lazytime
> > +	mnt nolazytime ^lazytime
> > +	mnt noatime
> > +	mnt nodiratime
> > +	mnt noexec
> > +	mnt nosuid
> > +	mnt ro
> > +
> > +	# generic remount check
> > +	remount barrier nobarrier
> > +	remount nobarrier barrier
> > +	remount discard nodiscard
> > +	remount nodiscard discard
> > +
> > +	# dax mount options
> > +	simple_mount -o dax=always $SCRATCH_DEV $SCRATCH_MNT > /dev/null 2>&1
> > +	if [ $? -eq 0 ]; then
> > +		$UMOUNT_PROG $SCRATCH_MNT 2> /dev/null
> > +		mnt dax
> > +		mnt dax=always
> > +		mnt dax=never
> > +		mnt dax=inode
> > +
> > +		not_remount lazytime dax
> > +		not_remount dax=always dax=never
> > +
> > +		if [[ $fstype != "ext2" ]]; then
> > +			not_remount data=journal dax
> > +			not_remount data=journal dax=always
> > +			not_remount data=journal dax=never
> > +			not_remount data=journal dax=inode
> > +		fi
> > +	fi
> > +
> > +	# Quota remount check
> > +	remount grpquota usrquota
> > +	remount usrquota quota
> > +	remount usrquota usrjquota=q.u,jqfmt=vfsv0
> > +	remount grpquota grpjquota=q.g,jqfmt=vfsv0
> > +
> > +	not_remount usrquota grpjquota=q.g,jqfmt=vfsv0
> > +	not_remount grpquota usrjquota=q.u,jqfmt=vfsv0
> > +
> > +	remount quota usrjquota=q.u,jqfmt=vfsv0
> > +	not_remount quota grpjquota=q.g,jqfmt=vfsv0
> > +
> > +	remount usrjquota=q.u,jqfmt=vfsv0 grpjquota=q.g
> > +	not_remount usrjquota=q.u,jqfmt=vfsv0 usrjquota=q.ua
> > +	not_remount grpjquota=q.g,jqfmt=vfsv0 grpjquota=q.ga
> > +
> > +	remount usrjquota=q.u,jqfmt=vfsv0 usrquota usrjquota=q.u,jqfmt=vfsv0
> > +	remount grpjquota=q.g,jqfmt=vfsv0 grpquota grpjquota=q.g,jqfmt=vfsv0
> > +	not_remount usrjquota=q.u,jqfmt=vfsv0 grpquota
> > +	not_remount grpjquota=q.g,jqfmt=vfsv0 usrquota
> > +
> > +	remount grpjquota=q.g,jqfmt=vfsv0 grpjquota= ^grpjquota=
> > +	remount usrjquota=q.u,jqfmt=vfsv0 usrjquota= ^usrjquota=
> > +	remount grpjquota=q.g,usrjquota=q.u,jqfmt=vfsv0 grpjquota=,usrjquota= ^grpjquota=,^usrjquota=
> > +
> > +	remount jqfmt=vfsv0 grpjquota=q.g
> > +	remount jqfmt=vfsv0 usrjquota=q.u
> > +
> > +	if [[ $fstype != "ext2" ]]; then
> > +		remount noload data=journal norecovery
> > +		not_remount data=ordered data=journal
> > +		not_remount data=journal data=writeback
> > +		not_remount data=writeback data=ordered
> > +	fi
> > +
> > +	do_mkfs -O journal_dev $LOOP_LOGDEV ${LOGSIZE}k
> > +	do_mkfs -J device=$LOOP_LOGDEV $SCRATCH_DEV ${SIZE}k
> > +	mnt defaults
> > +	mnt journal_path=$LOOP_LOGDEV ignored
> > +	mnt journal_dev=$LOGDEV_DEVNUM ignored
> > +	not_mnt journal_path=${LOOP_LOGDEV}_nonexistent ignored
> > +	not_mnt journal_dev=123456 ignored
> > +	not_mnt journal_dev=999999999999999 ignored
> > +
> > +	do_mkfs -E quotatype=prjquota $SCRATCH_DEV ${SIZE}k
> > +	mnt prjquota
> > +
> > +	# test clearing/changing journalled quota when enabled
> > +	echo "== Testing active journalled quota" >> $seqres.full
> > +	_mnt prjquota,grpjquota=aquota.group,usrjquota=aquota.user,jqfmt=vfsv0
> > +
> > +	# Prepare and enable quota
> > +	quotacheck -vugm $SCRATCH_MNT >> $seqres.full 2>&1
> > +	quotaon -vug $SCRATCH_MNT >> $seqres.full 2>&1
> > +
> > +	_not_remount -r grpjquota=
> > +	_not_remount -r usrjquota=aaquota.user
> > +	_not_remount -r grpjquota=aaquota.group
> > +	_not_remount -r jqfmt=vfsv1
> > +	_not_remount -r noquota
> > +	_mnt remount,usrquota,grpquota ^usrquota,^grpquota
> > +	$UMOUNT_PROG $SCRATCH_MNT > /dev/null 2>&1
> > +
> > +	# test clearing/changing quota when enabled
> > +	do_mkfs -E quotatype=^prjquota $SCRATCH_DEV ${SIZE}k
> > +	not_mnt prjquota
> > +	echo "== Testing active non-journalled quota" >> $seqres.full
> > +	_mnt grpquota,usrquota
> > +
> > +	# Prepare and enable quota
> > +	quotacheck -vugm $SCRATCH_MNT >> $seqres.full 2>&1
> > +	quotaon -vug $SCRATCH_MNT >> $seqres.full 2>&1
> > +
> > +	_not_remount -r noquota
> > +	_not_remount -r usrjquota=aquota.user
> > +	_not_remount -r grpjquota=aquota.group
> > +	_not_remount -r jqfmt=vfsv1
> > +	_mnt remount,grpjquota= grpquota,^grpjquota
> > +	_mnt remount,usrjquota= usrquota,^usrjquota
> > +	_mnt remount,usrquota,grpquota usrquota,grpquota
> > +	quotaoff -f $SCRATCH_MNT >> $seqres.full 2>&1
> > +	_mnt remount,noquota ^usrquota,^grpquota,quota
> > +	$UMOUNT_PROG $SCRATCH_MNT > /dev/null 2>&1
> > +
> > +	# Quota feature
> > +	echo "== Testing quota feature " >> $seqres.full
> > +	do_mkfs -O quota -E quotatype=prjquota $SCRATCH_DEV ${SIZE}k
> > +	mnt usrjquota=aquota.user,jqfmt=vfsv0 ^usrjquota=
> > +	mnt grpjquota=aquota.user,jqfmt=vfsv0 ^grpjquota=
> > +	mnt jqfmt=vfsv1 ^jqfmt=
> > +	mnt prjquota
> > +	mnt usrquota
> > +	mnt grpquota
> > +	not_remount defaults usrjquota=aquota.user
> > +	not_remount defaults grpjquota=aquota.user
> > +	not_remount defaults jqfmt=vfsv1
> > +	remount defaults grpjquota=,usrjquota= ignored
> > +
> > +done #for fstype in ext2 ext3 ext4; do
> > +
> > +$UMOUNT_PROG $SCRATCH_MNT > /dev/null 2>&1
> > +echo "$ERR errors encountered" >> $seqres.full
> > +
> > +status=$ERR
> > +exit
> > diff --git a/tests/ext4/053.out b/tests/ext4/053.out
> > new file mode 100644
> > index 00000000..d58db7e4
> > --- /dev/null
> > +++ b/tests/ext4/053.out
> > @@ -0,0 +1,2 @@
> > +QA output created by 053
> > +Silence is golden.
> > -- 
> > 2.31.1
> > 
> 

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