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#! /bin/bash
# SPDX-License-Identifier: GPL-2.0
# Copyright (c) 2022 Oracle. All Rights Reserved.
#
# FS QA Test No. 795
#
# Ensure that the sysadmin won't hit EDQUOT while repairing file data contents
# even if the file's quota limits have been exceeded. This tests the quota
# reservation handling inside the swapext code used by repair.
#
. ./common/preamble
_begin_fstest online_repair
# Import common functions.
. ./common/filter
. ./common/fuzzy
. ./common/inject
. ./common/quota
# real QA test starts here
# Modify as appropriate.
_supported_fs xfs
_require_quota
_require_user
_require_scratch
_require_xfs_stress_online_repair
_scratch_mkfs > "$seqres.full" 2>&1
_qmount_option usrquota
_qmount
blocksize=$(_get_block_size $SCRATCH_MNT)
alloc_unit=$(_xfs_get_dir_blocksize $SCRATCH_MNT)
# Make sure we can actually repair a directory
scratchdir=$SCRATCH_MNT/dir
scratchfile=$SCRATCH_MNT/file
mkdir $scratchdir
touch $scratchfile
$XFS_IO_PROG -x -c 'inject force_repair' $SCRATCH_MNT
__stress_scrub_check_commands "$scratchdir" "" 'repair directory'
# Create a 2-dirblock directory
total_size=$((alloc_unit * 2))
dirents=$((total_size / 255))
for ((i = 0; i < dirents; i++)); do
name=$(printf "x%0254d" $i)
ln $scratchfile $scratchdir/$name
done
# Set a low quota hardlimit for an unprivileged uid and chown the files to it
echo "set up quota" >> $seqres.full
$XFS_QUOTA_PROG -x -c "limit -u bhard=$alloc_unit $qa_user" $SCRATCH_MNT
chown $qa_user $scratchdir $scratchfile
$XFS_QUOTA_PROG -x -c 'report -u' $SCRATCH_MNT >> $seqres.full
# Rebuild the directory
echo "repairs" >> $seqres.full
$XFS_IO_PROG -x -c 'inject force_repair' -c 'repair directory' $scratchdir
$XFS_QUOTA_PROG -x -c 'report -u' $SCRATCH_MNT >> $seqres.full
# Fail at appending the directory as qa_user to ensure quota enforcement works
echo "fail quota" >> $seqres.full
for ((i = 0; i < dirents; i++)); do
name=$(printf "y%0254d" $i)
su - "$qa_user" -c "ln $scratchfile $scratchdir/$name" 2>&1 | \
_filter_scratch | sed -e 's/y[0-9]*/yXXX/g'
test "${PIPESTATUS[0]}" -ne 0 && break
done
$XFS_QUOTA_PROG -x -c 'report -u' $SCRATCH_MNT >> $seqres.full
# success, all done
echo Silence is golden
status=0
exit
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