#! /bin/bash # SPDX-License-Identifier: GPL-2.0 # Copyright (C) 2019 SUSE Linux Products GmbH. All Rights Reserved. # # FS QA Test 182 # # Test if balance will report false ENOSPC error # # This is a long existing bug, caused by over-estimated metadata # space_info::bytes_may_use. # # There is one proposed patch for btrfs-progs to fix it, titled: # "btrfs-progs: balance: Sync the fs before balancing metadata chunks" # . ./common/preamble _begin_fstest auto quick balance . ./common/filter _supported_fs btrfs _require_scratch nr_files=1024 _scratch_mkfs > /dev/null _scratch_mount $BTRFS_UTIL_PROG subvolume create "$SCRATCH_MNT/subvol" > /dev/null # Create some small files to take up enough metadata reserved space for ((i = 0; i < $nr_files; i++)) do _pwrite_byte 0xcd 0 1K "$SCRATCH_MNT/subvol/file_$i" > /dev/null done _run_btrfs_balance_start -m $SCRATCH_MNT >> $seqres.full # success, all done echo "Silence is golden" status=0 exit