Use 100MB pool for filetest_001_pos.ksh checksum test

As part of its tests, filetest_001_pos.ksh wipes the entire vdev to
create checksum errors.  This patch uses the setup/cleanup scripts from
the scrub_mirror test to create a custom 100MB pool, rather than
using the entire device size that is passed into zfs-tests.sh
(which defaults to 2GB).  This speeds up the buildbot tests, and also
makes it possible for someone to use real disks (say, 1TB) without the
test taking an insanely long amount of time.

tests/zfs-tests/tests/functional/checksum/Makefile.am

@@ -7,6 +7,7 @@ AUTOMAKE_OPTIONS = subdir-objects
 pkgdatadir = $(datadir)/@PACKAGE@/zfs-tests/tests/functional/checksum
 
 dist_pkgdata_SCRIPTS = \
+	default.cfg \
 	setup.ksh \
 	cleanup.ksh \
 	run_edonr_test.ksh \

tests/zfs-tests/tests/functional/checksum/cleanup.ksh

@@ -25,6 +25,26 @@
 # Use is subject to license terms.
 #
 
-. $STF_SUITE/include/libtest.shlib
+#
+# Copyright (c) 2013 by Delphix. All rights reserved.
+#
 
-default_cleanup
+. $STF_SUITE/include/libtest.shlib
+. $STF_SUITE/tests/functional/scrub_mirror/default.cfg
+
+
+verify_runnable "global"
+
+$DF -F zfs -h | $GREP "$TESTFS " >/dev/null
+[[ $? == 0 ]] && log_must $ZFS umount -f $TESTDIR
+destroy_pool $TESTPOOL
+
+# recreate and destroy a zpool over the disks to restore the partitions to
+# normal
+if [[ -n $SINGLE_DISK ]]; then
+	log_must cleanup_devices $MIRROR_PRIMARY
+else
+	log_must cleanup_devices $MIRROR_PRIMARY $MIRROR_SECONDARY
+fi
+
+log_pass

tests/zfs-tests/tests/functional/checksum/default.cfg

@@ -0,0 +1,66 @@
+#
+# CDDL HEADER START
+#
+# The contents of this file are subject to the terms of the
+# Common Development and Distribution License (the "License").
+# You may not use this file except in compliance with the License.
+#
+# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+# or http://www.opensolaris.org/os/licensing.
+# See the License for the specific language governing permissions
+# and limitations under the License.
+#
+# When distributing Covered Code, include this CDDL HEADER in each
+# file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+# If applicable, add the following below this CDDL HEADER, with the
+# fields enclosed by brackets "[]" replaced with your own identifying
+# information: Portions Copyright [yyyy] [name of copyright owner]
+#
+# CDDL HEADER END
+#
+
+#
+# Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
+# Use is subject to license terms.
+#
+
+#
+# Copyright (c) 2013 by Delphix. All rights reserved.
+#
+
+typeset -i NUMBER_OF_DISKS=0
+for i in $DISKS; do
+	[[ -n $MIRROR_PRIMARY ]] && MIRROR_SECONDARY=$i
+	[[ -z $MIRROR_PRIMARY ]] && MIRROR_PRIMARY=$i
+done
+
+if [[ -z $MIRROR_SECONDARY ]]; then
+	# We need to repartition the single disk to two slices
+	SINGLE_DISK=$MIRROR_PRIMARY
+	MIRROR_SECONDARY=$MIRROR_PRIMARY
+	SIDE_PRIMARY_PART=0
+	SIDE_SECONDARY_PART=1
+	if is_linux; then
+		SIDE_PRIMARY=${SINGLE_DISK}p1
+		SIDE_SECONDARY=${SINGLE_DISK}p2
+	else
+		SIDE_PRIMARY=${SINGLE_DISK}s${SIDE_PRIMARY_PART}
+		SIDE_SECONDARY=${SINGLE_DISK}s${SIDE_SECONDARY_PART}
+	fi
+else
+	SIDE_PRIMARY_PART=0
+	SIDE_SECONDARY_PART=0
+	if is_linux; then
+		SIDE_PRIMARY=${MIRROR_PRIMARY}p1
+		SIDE_SECONDARY=${MIRROR_SECONDARY}p1
+	else
+		SIDE_PRIMARY=${MIRROR_PRIMARY}s${SIDE_PRIMARY_PART}
+		SIDE_SECONDARY=${MIRROR_SECONDARY}s${SIDE_SECONDARY_PART}
+	fi
+fi
+
+
+export MIRROR_PRIMARY MIRROR_SECONDARY SINGLE_DISK SIDE_PRIMARY SIDE_SECONDARY
+
+export MIRROR_MEGS=100
+export MIRROR_SIZE=${MIRROR_MEGS}m # default mirror size

tests/zfs-tests/tests/functional/checksum/filetest_001_pos.ksh

@@ -89,7 +89,7 @@ while is_pool_scrubbing $TESTPOOL; do
 	$SLEEP 1
 done
 $ZPOOL status -P -v $TESTPOOL | grep $firstvdev | read -r name state rd wr cksum
-log_assert "Normal file write test saw: $cksum errors"
+log_assert "Normal file write test saw $cksum checksum errors"
 log_must [ $cksum -eq 0 ]
 
 rm -fr $TESTDIR/*

tests/zfs-tests/tests/functional/checksum/setup.ksh

@@ -21,11 +21,31 @@
 #
 
 #
-# Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
+# Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
 # Use is subject to license terms.
 #
 
-. $STF_SUITE/include/libtest.shlib
+#
+# Copyright (c) 2013 by Delphix. All rights reserved.
+#
 
-DISK=${DISKS%% *}
+. $STF_SUITE/include/libtest.shlib
-default_mirror_setup $DISKS
+. $STF_SUITE/tests/functional/checksum/default.cfg
+
+verify_runnable "global"
+
+if ! $(is_physical_device $DISKS) ; then
+	log_unsupported "This directory cannot be run on raw files."
+fi
+
+if [[ -n $SINGLE_DISK ]]; then
+	log_note "Partitioning a single disk ($SINGLE_DISK)"
+else
+	log_note "Partitioning disks ($MIRROR_PRIMARY $MIRROR_SECONDARY)"
+fi
+log_must set_partition $SIDE_PRIMARY_PART "" $MIRROR_SIZE $MIRROR_PRIMARY
+log_must set_partition $SIDE_SECONDARY_PART "" $MIRROR_SIZE $MIRROR_SECONDARY
+
+default_mirror_setup $SIDE_PRIMARY $SIDE_SECONDARY
+
+log_pass