From db210bf236c14b2b013c1fe115a5c357b1b1743b Mon Sep 17 00:00:00 2001
From: Brian Behlendorf <behlendorf1@llnl.gov>
Date: Tue, 20 Jan 2009 14:10:30 -0800
Subject: [PATCH] Add destroy functionality to zpool create, needed for generic
 use by zpios.sh

---
 scripts/zpool-config/hda-raid0.cfg            |  8 -----
 scripts/zpool-config/hda-raid0.sh             | 16 +++++++++
 scripts/zpool-config/lo-raid0.cfg             | 21 -----------
 scripts/zpool-config/lo-raid0.sh              | 35 +++++++++++++++++++
 scripts/zpool-config/sda-raid0.sh             | 16 +++++++++
 .../{x4550-raid0.cfg => x4550-raid0.sh}       | 10 +++++-
 scripts/zpool-create.sh                       | 17 +++++++--
 7 files changed, 90 insertions(+), 33 deletions(-)
 delete mode 100644 scripts/zpool-config/hda-raid0.cfg
 create mode 100644 scripts/zpool-config/hda-raid0.sh
 delete mode 100644 scripts/zpool-config/lo-raid0.cfg
 create mode 100644 scripts/zpool-config/lo-raid0.sh
 create mode 100644 scripts/zpool-config/sda-raid0.sh
 rename scripts/zpool-config/{x4550-raid0.cfg => x4550-raid0.sh} (70%)

diff --git a/scripts/zpool-config/hda-raid0.cfg b/scripts/zpool-config/hda-raid0.cfg
deleted file mode 100644
index 13a55e194c..0000000000
--- a/scripts/zpool-config/hda-raid0.cfg
+++ /dev/null
@@ -1,8 +0,0 @@
-#!/bin/bash
-#
-# Single disk /dev/hda Raid-0 Configuration
-#
-
-DEVICES="/dev/hda"
-
-${CMDDIR}/zpool/zpool create -f ${ZPOOL_NAME} ${DEVICES} || exit 1
diff --git a/scripts/zpool-config/hda-raid0.sh b/scripts/zpool-config/hda-raid0.sh
new file mode 100644
index 0000000000..9ddfdb3629
--- /dev/null
+++ b/scripts/zpool-config/hda-raid0.sh
@@ -0,0 +1,16 @@
+#!/bin/bash
+#
+# Single disk /dev/hda Raid-0 Configuration
+#
+
+DEVICES="/dev/hda"
+
+zpool_create() {
+	msg "${CMDDIR}/zpool/zpool create -f ${ZPOOL_NAME} ${DEVICES}"
+	${CMDDIR}/zpool/zpool create -f ${ZPOOL_NAME} ${DEVICES} || exit 1
+}
+
+zpool_destroy() {
+	msg "${CMDDIR}/zpool/zpool destroy ${ZPOOL_NAME}"
+	${CMDDIR}/zpool/zpool destroy ${ZPOOL_NAME} || exit 1
+}
diff --git a/scripts/zpool-config/lo-raid0.cfg b/scripts/zpool-config/lo-raid0.cfg
deleted file mode 100644
index 75a411c9b5..0000000000
--- a/scripts/zpool-config/lo-raid0.cfg
+++ /dev/null
@@ -1,21 +0,0 @@
-#!/bin/bash
-#
-# 5 Device Loopback Raid-0 Configuration
-#
-
-DEVICES="/tmp/zpool-vdev0  \
-         /tmp/zpool-vdev1  \
-         /tmp/zpool-vdev2  \
-         /tmp/zpool-vdev3  \
-         /tmp/zpool-vdev4" 
-DEVICE_SIZE=512
-
-for DEV in ${DEVICES}; do
-	msg "Creating ${DEV} loopback device (${DEVICE_SIZE} Mib)"
-	rm -f ${DEV} || exit 1
-	dd if=/dev/zero of=${DEV} bs=1024k count=${DEVICE_SIZE} &>/dev/null || exit 1
-	losetup `/sbin/losetup -f` ${DEV} || exit 1
-done
-
-${CMDDIR}/zpool/zpool create -f ${ZPOOL_NAME} ${DEVICES} || exit 1
-
diff --git a/scripts/zpool-config/lo-raid0.sh b/scripts/zpool-config/lo-raid0.sh
new file mode 100644
index 0000000000..fb40b15868
--- /dev/null
+++ b/scripts/zpool-config/lo-raid0.sh
@@ -0,0 +1,35 @@
+#!/bin/bash
+#
+# 5 Device Loopback Raid-0 Configuration
+#
+
+DEVICES="/tmp/zpool-vdev0  \
+         /tmp/zpool-vdev1  \
+         /tmp/zpool-vdev2  \
+         /tmp/zpool-vdev3  \
+         /tmp/zpool-vdev4" 
+DEVICE_SIZE=512
+
+zpool_create() {
+	for DEV in ${DEVICES}; do
+		LO=`/sbin/losetup -f`
+		msg "Creating ${DEV} using loopback device ${LO}"
+		rm -f ${DEV} || exit 1
+		dd if=/dev/zero of=${DEV} bs=1024k count=${DEVICE_SIZE} &>/dev/null || exit 1
+		losetup ${LO} ${DEV} || exit 1
+	done
+
+	msg "${CMDDIR}/zpool/zpool create -f ${ZPOOL_NAME} ${DEVICES}"
+	${CMDDIR}/zpool/zpool create -f ${ZPOOL_NAME} ${DEVICES} || exit 1
+}
+
+zpool_destroy() {
+	msg "${CMDDIR}/zpool/zpool destroy ${ZPOOL_NAME}"
+	${CMDDIR}/zpool/zpool destroy ${ZPOOL_NAME}
+
+	for DEV in ${DEVICES}; do
+		LO=`/sbin/losetup -a | grep ${DEV} | head -n1 | cut -f1 -d:`
+		msg "Removing ${DEV} using loopback device ${LO}"
+		rm -f ${DEV} || exit 1
+	done
+}
diff --git a/scripts/zpool-config/sda-raid0.sh b/scripts/zpool-config/sda-raid0.sh
new file mode 100644
index 0000000000..aa43b56517
--- /dev/null
+++ b/scripts/zpool-config/sda-raid0.sh
@@ -0,0 +1,16 @@
+#!/bin/bash
+#
+# Single disk /dev/sda Raid-0 Configuration
+#
+
+DEVICES="/dev/sda"
+
+zpool_create() {
+	msg "${CMDDIR}/zpool/zpool create -f ${ZPOOL_NAME} ${DEVICES}"
+	${CMDDIR}/zpool/zpool create -f ${ZPOOL_NAME} ${DEVICES} || exit 1
+}
+
+zpool_destroy() {
+	msg "${CMDDIR}/zpool/zpool destroy ${ZPOOL_NAME}"
+	${CMDDIR}/zpool/zpool destroy ${ZPOOL_NAME} || exit 1
+}
diff --git a/scripts/zpool-config/x4550-raid0.cfg b/scripts/zpool-config/x4550-raid0.sh
similarity index 70%
rename from scripts/zpool-config/x4550-raid0.cfg
rename to scripts/zpool-config/x4550-raid0.sh
index 05bbfdf77f..32e608fcef 100644
--- a/scripts/zpool-config/x4550-raid0.cfg
+++ b/scripts/zpool-config/x4550-raid0.sh
@@ -12,4 +12,12 @@ DEVICES="/dev/sda  /dev/sdb  /dev/sdc  /dev/sdd  /dev/sde  /dev/sdf  \
          /dev/sdak /dev/sdal /dev/sdam /dev/sdan /dev/sdao /dev/sdap \
          /dev/sdaq /dev/sdar /dev/sdas /dev/sdat /dev/sdau /dev/sdav"
 
-${CMDDIR}/zpool/zpool create -f ${ZPOOL_NAME} ${DEVICES} || exit 1
+zpool_create() {
+	msg "${CMDDIR}/zpool/zpool create -f ${ZPOOL_NAME} ${DEVICES}"
+	${CMDDIR}/zpool/zpool create -f ${ZPOOL_NAME} ${DEVICES} || exit 1
+}
+
+zpool_destroy() {
+	msg "${CMDDIR}/zpool/zpool destroy ${ZPOOL_NAME}"
+	${CMDDIR}/zpool/zpool destroy ${ZPOOL_NAME}
+}
diff --git a/scripts/zpool-create.sh b/scripts/zpool-create.sh
index 4b8e3a8bf2..e613e671c8 100755
--- a/scripts/zpool-create.sh
+++ b/scripts/zpool-create.sh
@@ -14,8 +14,9 @@ DESCRIPTION:
 OPTIONS:
         -h      Show this message
         -v      Verbose
-        -c      Zpool configuration
-        -p      Zpool name
+        -c      Configuration for zpool
+        -p      Name for zpool
+	-d      Destroy zpool (default create)
 
 EOF
 }
@@ -39,8 +40,9 @@ check_config() {
 
 ZPOOL_CONFIG=zpool_config.cfg
 ZPOOL_NAME=tank
+ZPOOL_DESTROY=
 
-while getopts 'hvc:p:' OPTION; do
+while getopts 'hvc:p:d' OPTION; do
 	case $OPTION in
 	h)
 		usage
@@ -55,6 +57,9 @@ while getopts 'hvc:p:' OPTION; do
 	p)
 		ZPOOL_NAME=${OPTARG}
 		;;
+	d)
+		ZPOOL_DESTROY=1
+		;;
 	?)
 		usage
 		exit
@@ -69,6 +74,12 @@ fi
 check_config || die "${ERROR}"
 . ${ZPOOL_CONFIG}
 
+if [ ${ZPOOL_DESTROY} ]; then
+	zpool_destroy
+else
+	zpool_create
+fi
+
 if [ ${VERBOSE} ]; then
 	echo
 	echo "zpool list"