1 files changed, 59 insertions, 0 deletions
diff --git a/sys/contrib/openzfs/tests/zfs-tests/tests/functional/nopwrite/nopwrite_volume.ksh b/sys/contrib/openzfs/tests/zfs-tests/tests/functional/nopwrite/nopwrite_volume.ksh
new file mode 100755
index 000000000000..a118b982240c
--- /dev/null
+++ b/sys/contrib/openzfs/tests/zfs-tests/tests/functional/nopwrite/nopwrite_volume.ksh
@@ -0,0 +1,59 @@
+#!/bin/ksh
+
+#
+# This file and its contents are supplied under the terms of the
+# Common Development and Distribution License ("CDDL"), version 1.0.
+# You may only use this file in accordance with the terms of version
+# 1.0 of the CDDL.
+#
+# A full copy of the text of the CDDL should have accompanied this
+# source.  A copy of the CDDL is also available via the Internet at
+# http://www.illumos.org/license/CDDL.
+#
+
+#
+# Copyright (c) 2012, 2016 by Delphix. All rights reserved.
+#
+
+. $STF_SUITE/include/libtest.shlib
+. $STF_SUITE/tests/functional/nopwrite/nopwrite.shlib
+
+#
+# Description:
+# Verify that nopwrite cannot be enabled on volumes
+#
+# Strategy:
+# 1. Create a clone of a volume that fits the criteria for nopwrite.
+# 2. Overwrite the same blocks from the origin vol and verify that
+# new space is consumed.
+#
+
+verify_runnable "global"
+origin="$TESTPOOL/$TESTVOL"
+clone="$TESTPOOL/clone"
+vol="${ZVOL_RDEVDIR}/$origin"
+volclone="${ZVOL_RDEVDIR}/$clone"
+log_onexit cleanup
+
+function cleanup
+{
+	datasetexists $origin && log_must zfs destroy -R $origin
+	# No need to recreate the volume as no other tests expect it.
+}
+
+log_assert "nopwrite works on volumes"
+
+log_must zfs set compress=on $origin
+log_must zfs set checksum=sha256 $origin
+dd if=/dev/urandom of=$vol bs=8192 count=4096 conv=notrunc >/dev/null \
+    2>&1 || log_fail "dd into $origin failed."
+zfs snapshot $origin@a || log_fail "zfs snap failed"
+log_must zfs clone $origin@a $clone
+log_must zfs set compress=on $clone
+log_must zfs set checksum=sha256 $clone
+block_device_wait
+dd if=$vol of=$volclone bs=8192 count=4096 conv=notrunc >/dev/null 2>&1 || \
+    log_fail "dd into $clone failed."
+log_must verify_nopwrite $origin $origin@a $clone
+
+log_pass "nopwrite works on volumes"