1 files changed, 68 insertions, 0 deletions
diff --git a/sys/contrib/openzfs/tests/zfs-tests/tests/functional/block_cloning/block_cloning_copyfilerange_partial.ksh b/sys/contrib/openzfs/tests/zfs-tests/tests/functional/block_cloning/block_cloning_copyfilerange_partial.ksh
new file mode 100755
index 000000000000..a5da0a0bd359
--- /dev/null
+++ b/sys/contrib/openzfs/tests/zfs-tests/tests/functional/block_cloning/block_cloning_copyfilerange_partial.ksh
@@ -0,0 +1,68 @@
+#!/bin/ksh -p
+#
+# 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 https://opensource.org/licenses/CDDL-1.0.
+# 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 (c) 2023, Klara Inc.
+#
+
+. $STF_SUITE/include/libtest.shlib
+. $STF_SUITE/tests/functional/block_cloning/block_cloning.kshlib
+
+verify_runnable "global"
+
+if [[ $(linux_version) -lt $(linux_version "4.5") ]]; then
+  log_unsupported "copy_file_range not available before Linux 4.5"
+fi
+
+claim="The copy_file_range syscall can clone parts of a file."
+
+log_assert $claim
+
+function cleanup
+{
+	datasetexists $TESTPOOL && destroy_pool $TESTPOOL
+}
+
+log_onexit cleanup
+
+log_must zpool create -o feature@block_cloning=enabled $TESTPOOL $DISKS
+
+log_must dd if=/dev/urandom of=/$TESTPOOL/file1 bs=128K count=4
+log_must sync_pool $TESTPOOL
+
+log_must dd if=/$TESTPOOL/file1 of=/$TESTPOOL/file2 bs=128K count=4
+log_must sync_pool $TESTPOOL
+
+log_must have_same_content /$TESTPOOL/file1 /$TESTPOOL/file2
+
+typeset blocks=$(get_same_blocks $TESTPOOL file1 $TESTPOOL file2)
+log_must [ "$blocks" = "" ]
+
+log_must clonefile -f /$TESTPOOL/file1 /$TESTPOOL/file2 131072 131072 262144
+log_must sync_pool $TESTPOOL
+
+log_must have_same_content /$TESTPOOL/file1 /$TESTPOOL/file2
+
+typeset blocks=$(get_same_blocks $TESTPOOL file1 $TESTPOOL file2)
+log_must [ "$blocks" = "1 2" ]
+
+log_pass $claim