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Correctly detect if dmapi is present of not in tests 175-177
Merge of master-melb:xfs-cmds:31032a by kenmcd.

  Correctly detect if dmapi is present.

#! /bin/sh
# FSQA Test No. 175
#
# Hole punching with extsize hints, holes may not reported by xfs_bmap.
# This is not good for certain backup apps, as they rely on the hole
# being visible in the file so later on they know where to migrate
# back the data from the tape.
#
#-----------------------------------------------------------------------
#  Copyright (c) 2007 Silicon Graphics, Inc.  All Rights Reserved.
#-----------------------------------------------------------------------
#
owner=ddiss@sgi.com

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

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

_cleanup()
{
	rm -f $tmp/*
}

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

# real QA test starts here
_supported_fs xfs
_supported_os Linux

_require_scratch

# test that we have DMAPI support
_dmapi_scratch_mount
unmount $SCRATCH_MNT > /dev/null 2>&1

# _test_punch args: blksize extsize_hint filesize "pp1 pp2 pp3" \
# 					"ps1 ps2 ps3" "pt1 pt2 pt3" "wp1 wp2" "ws1 ws2" \
#					"w p p w p" resvsp

echo "-- test dmpunch-hole without an extent size hint --"
_test_punch 4096 0 256 "240" "16" "d" "0" "256" "w p" noresv

echo
echo "-- this time use a 4k (one block) extent size hint --"
_test_punch 4096 1 256 "240" "16" "d" "0" "256" "w p" noresv

status=0
exit