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#! /bin/bash
# SPDX-License-Identifier: GPL-2.0
# Copyright (c) 2017 Liu Bo. All Rights Reserved.
#
# FS QA Test generic/406
#
# If a larger dio write (size >= 128M) got splitted, the assertion in endio
# would complain (CONFIG_BTRFS_ASSERT is required).
#
# Regression test for
# Btrfs: adjust outstanding_extents counter properly when dio write is split
#
. ./common/preamble
_begin_fstest auto quick
# Import common functions.
. ./common/filter
# real QA test starts here
# Modify as appropriate.
_supported_fs generic
_require_scratch
_require_odirect
_scratch_mkfs >> $seqres.full 2>&1
_scratch_mount
# 2G / 1K
blocksize=$(( (128 + 1) * 2 * 1024 * 1024))
fsblock=$(( (128 + 1) * 2 * 1024))
_require_fs_space $SCRATCH_MNT $fsblock
echo "Silence is golden"
$XFS_IO_PROG -f -d -c "pwrite -b ${blocksize} 0 ${blocksize}" $SCRATCH_MNT/testfile.$seq >> $seqres.full 2>&1
_scratch_unmount
# success, all done
status=0
exit
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