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xfstests: add test 185, Dmapi Punch/Probe Alignment compared to xfsctl(FREESPACE),

tests PV 976771, by trying to punch a hole that's not page aligned but block aligned
Merge of master-melb:xfs-cmds:30582a by kenmcd.

  New QA test

#! /bin/sh
# FSQA Test No. 142
#
# Dmapi Punch/Probe Alignment compared to xfsctl(FREESPACE); 
#
#-----------------------------------------------------------------------
#  Copyright (c) 2006 Silicon Graphics, Inc.  All Rights Reserved.
#-----------------------------------------------------------------------
#
# creator
owner=xaiki@sgi.com

seq=`basename $0`
echo "QA output created by $seq"

here=`pwd`
tmp=/tmp/$$
status=1    # failure is the default!
trap "_cleanup; exit \$status" 0 1 2 3 15

_cleanup()
{
    _cleanup_testdir
}

# get standard environment, filters and checks
. ./common.rc
. ./common.filter
. ./common.dmapi

# real QA test starts here
_supported_fs xfs
_supported_os Linux IRIX

_require_scratch
_scratch_mkfs_xfs -b size=512 >/dev/null 2>&1
_dmapi_scratch_mount


cat > $tmp.dmapi-param <<EOF
# length	offset
  16k		0    # page aligned
  1k		0    # not page aligned
# random tests
  1k            4k
  4k            1k
  1024k         512k
EOF

mkdir -p $SCRATCH_MNT/dmapi
f=$SCRATCH_MNT/dmapi/holly_file
e=${DMAPI_QASUITE1_DIR}cmd/probe_punch_xfsctl_hole

cat $tmp.dmapi-param | sed s/'\#.*'//g| grep . |while read l o; do
    echo "======================================================="
	echo "Testing with length = $l, offset = $o"

	echo "Method:	xfsctl"
	dd if=/dev/zero bs=1024k count=3 of=$f >/dev/null 2>&1
	$e -x -l$l -o$o $f

	echo "Method:	dmapi_probe"
	dd if=/dev/zero bs=1024k count=3 of=$f >/dev/null 2>&1
	$e -l$l -o$o $f

	echo "Method:	dmapi_punch"
	$e -p -l$l -o$o $f 
	echo "======================================================="
done

rm -rf $tmp.dmapi-param

status=0
exit