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#! /bin/bash
# SPDX-License-Identifier: GPL-2.0
# Copyright (c) 2015 Fujitsu. All Rights Reserved.
#
# FS QA Test No. 102
#
# TEST busy loop of write and delete in a filesystem.
# Sometimes writes will failed on NO_SPACE when disk almost full
# in btrfs. It is long-term problem since very beginning for btrfs
#
# This issue was fixed by the patchset named:
#
# btrfs: Fix no_space on dd and rm loop < from zhaolei@cn.fujitsu.com >
#
. ./common/preamble
_begin_fstest auto rw
# Import common functions.
. ./common/filter
# real QA test starts here
_supported_fs generic
_require_scratch
dev_size=$((1024 * 1024 * 1024)) # 1GB filesystem
_scratch_mkfs_sized $dev_size >>$seqres.full 2>&1
_scratch_mount
for ((i = 0; i < 10; i++)); do
echo "loop $i" >>$seqres.full
$XFS_IO_PROG -f -c "pwrite -b 1m 0 800m" "$SCRATCH_MNT"/file | \
_filter_xfs_io | _filter_scratch
rm -f "$SCRATCH_MNT"/file
done
status=0
exit
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