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intigrate bulkstat_unlink_test into XFS-QA
Merge of master-melb:xfs-cmds:29213a by kenmcd.

  New XFSQA test

#! /bin/sh
# FS QA Test No. 177
#
# Test to reproduce PV#: 964316
# Check sync reclaims and flushes unlinked inodes to their buffers.
#-----------------------------------------------------------------------
# Copyright (c) 2007 Silicon Graphics, Inc.  All Rights Reserved.
#-----------------------------------------------------------------------
#
# creator
owner=mohamedb@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()
{
    cd /
    rm -f $tmp.*
}

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

# real QA test starts here

# Modify as appropriate.
_supported_fs xfs 
_supported_os Linux

# Setup Filesystem
_require_scratch
_scratch_mkfs_xfs >/dev/null 2>&1 \
        || _fail "mkfs failed"

_scratch_mount \
        || _fail "mount failed"

# run Mark Goodwin test here
# Usage: ./bulkstat_unlink_test iterations nfiles stride dir
#        Create dir with nfiles, unlink each stride'th file, sync, bulkstat
$here/src/bulkstat_unlink_test 50 100 1 $SCRATCH_MNT/bulkstat
$here/src/bulkstat_unlink_test 10 1000 1 $SCRATCH_MNT/bulkstat
$here/src/bulkstat_unlink_test 50 100 6 $SCRATCH_MNT/bulkstat
$here/src/bulkstat_unlink_test 50 1000 3 $SCRATCH_MNT/bulkstat

# success, all done
status=0
exit