tests/generic/324

#! /bin/bash
# SPDX-License-Identifier: GPL-2.0
# Copyright (c) 2013 Red Hat, Inc.  All Rights Reserved.
#
# FS QA Test No. generic/324
#
# Sanity check for defrag utility.
#
. ./common/preamble
_begin_fstest auto fsr quick defrag prealloc

PIDS=""

# Import common functions.
. ./common/filter
. ./common/defrag

_require_scratch
_require_defrag
_require_xfs_io_command "falloc"

_workout()
{
	nr=$1
	echo "Defragment file with $nr * 2 fragments"
	# Create sparse file
	for ((i=0;i<nr;i++))
	do
		$XFS_IO_PROG -f -c "falloc $((409600*i)) 4k"  \
			$SCRATCH_MNT/test.$nr >> $seqres.full 2>&1
	done
	# Fill holes for half of range , as result file will contain nr*1.5 fragments
	$XFS_IO_PROG -c "falloc 0 $((204800*nr))"  \
	    $SCRATCH_MNT/test.$nr | _filter_xfs_io
	# Data wrilte will convert extetns to inialized ones
	for ((i=0;i<nr;i++))
	do
		patt=`printf "0x%x" $i`
		$XFS_IO_PROG -c "pwrite -S $patt $((i*123400)) 1234" \
			$SCRATCH_MNT/test.$nr | _filter_xfs_io
	done
	_defrag --min_before $nr --max_before $((nr*4)) \
		--min_after 1 $SCRATCH_MNT/test.$nr
}

# Actual testing starting from here
_scratch_mkfs  >> $seqres.full 2>&1
_scratch_mount
_workout 10
_workout 250
_workout 1000
status=0