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#! /bin/bash
# SPDX-License-Identifier: GPL-2.0
# Copyright (c) 2014 Fujitsu. All Rights Reserved.
#
# FS QA Test No. 042
#
# Test the basic functionality of Quota groups
#
. ./common/preamble
_begin_fstest auto quick qgroup limit
. ./common/filter
_supported_fs btrfs
_require_scratch
_require_btrfs_qgroup_report
run_check _scratch_mkfs
_scratch_mount
LIMIT_SIZE=$((10 * 1024 * 1024))
_btrfs quota enable $SCRATCH_MNT
_btrfs qgroup create 1/1 $SCRATCH_MNT
_btrfs qgroup limit $LIMIT_SIZE 1/1 $SCRATCH_MNT
for i in `seq 10 -1 1`; do
#add newly created subvolume qgroup to it's parent qgroup
_btrfs subvolume create -i 1/1 \
$SCRATCH_MNT/subv_$i
done
#try to write data into every subvolume
for i in `seq 10 -1 1`; do
$XFS_IO_PROG -f -d -c 'pwrite -b 4k 0 10m' $SCRATCH_MNT/subv_$i/data \
>> /dev/null 2>&1 &
done
wait
_btrfs filesystem sync $SCRATCH_MNT \
>>$seqres.full 2>&1
total_written=0
#calculate every subvolume's data.
for i in `seq 10 -1 1`; do
#we may fail to create the file, skip this subvolume
test -f $SCRATCH_MNT/subv_$i || continue
filesize=`du -b $SCRATCH_MNT/subv_$i/data | $AWK_PROG '{print $1}'`
if [ $filesize -gt $LIMIT_SIZE ];then
_fail "subv_$i/data size should be less than $LIMIT_SIZE"
fi
total_written=$(($total_written+$filesize))
done
#check if total written exceeds limit
if [ $total_written -gt $LIMIT_SIZE ];then
_fail "total written should be less than $LIMIT_SIZE"
fi
# success, all done
echo "Silence is golden"
status=0
exit
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