[ndctl,v2,17/26] ndctl/test: Checkout device-mapper + dax operation

Commit Message

Dan Williams July 27, 2019, 9:40 p.m. UTC

Given recent kernel changes broke the device-mapper use case, introduce
a basic unit test to prevent this from regressing in the future.

Signed-off-by: Dan Williams <[e-mail]>
---
 test/Makefile.am |    1 +
 test/dm.sh       |   75 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 76 insertions(+)
 create mode 100755 test/dm.sh

Patch

diff --git a/test/Makefile.am b/test/Makefile.am
index 874c4bbfaa90..2a1e03d26f6c 100644
--- a/test/Makefile.am
+++ b/test/Makefile.am
@@ -49,6 +49,7 @@  TESTS +=\
 	dax.sh \
 	device-dax \
 	device-dax-fio.sh \
+	dm.sh \
 	mmap.sh
 
 if ENABLE_KEYUTILS
diff --git a/test/dm.sh b/test/dm.sh
new file mode 100755
index 000000000000..fb498c95a29b
--- /dev/null
+++ b/test/dm.sh
@@ -0,0 +1,75 @@ 
+#!/bin/bash -x
+# SPDX-License-Identifier: GPL-2.0
+# Copyright(c) 2015-2019 Intel Corporation. All rights reserved.
+
+set -e
+
+SKIP=77
+FAIL=1
+SUCCESS=0
+
+. ./common
+
+MNT=test_dax_mnt
+TEST_DM_PMEM=/dev/mapper/test_pmem
+NAME=$(basename $TEST_DM_PMEM)
+
+mkdir -p $MNT
+
+TEST_SIZE=$((1<<30))
+
+rc=$FAIL
+cleanup() {
+	if [ $rc -ne $SUCCESS ]; then
+		echo "test/dm.sh: failed at line $1"
+	fi
+	if mountpoint -q $MNT; then
+		umount $MNT
+	fi
+
+	if [ -L $TEST_DM_PMEM ]; then
+		dmsetup remove $TEST_DM_PMEM
+	fi
+	rmdir $MNT
+	# opportunistic cleanup, not fatal if these fail
+	namespaces=$($NDCTL list -N | jq -r ".[] | select(.name==\"$NAME\") | .dev")
+	for i in $namespaces
+	do
+		if ! $NDCTL destroy-namespace -f $i; then
+			echo "test/sub-section.sh: cleanup() failed to destroy $i"
+		fi
+	done
+	exit $rc
+}
+
+trap 'err $LINENO cleanup' ERR
+
+dev="x"
+json=$($NDCTL create-namespace -b ACPI.NFIT -s $TEST_SIZE -t pmem -m fsdax -n "$NAME")
+eval $(echo $json | json2var )
+[ $dev = "x" ] && echo "fail: $LINENO" && exit 1
+[ $mode != "fsdax" ] && echo "fail: $LINENO" &&  exit 1
+
+pmem0=/dev/$blockdev
+size0=$((size/512))
+
+json=$($NDCTL create-namespace -b ACPI.NFIT -s $TEST_SIZE -t pmem -m fsdax -n "$NAME")
+eval $(echo $json | json2var )
+[ $dev = "x" ] && echo "fail: $LINENO" && exit 1
+[ $mode != "fsdax" ] && echo "fail: $LINENO" &&  exit 1
+
+pmem1=/dev/$blockdev
+size1=$((size/512))
+
+cat <<EOF |
+0 $size0 linear $pmem0 0
+$size0 $size1 linear $pmem1 0
+EOF
+dmsetup create $(basename $NAME)
+
+mkfs.ext4 -b 4096 $TEST_DM_PMEM
+mount -o dax $TEST_DM_PMEM $MNT
+umount $MNT
+
+rc=$SUCCESS
+cleanup $LINENO