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diff --git a/sys/contrib/openzfs/tests/zfs-tests/tests/functional/atime/atime_common.kshlib b/sys/contrib/openzfs/tests/zfs-tests/tests/functional/atime/atime_common.kshlib
new file mode 100644
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+++ b/sys/contrib/openzfs/tests/zfs-tests/tests/functional/atime/atime_common.kshlib
@@ -0,0 +1,102 @@
+#
+# 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 2007 Sun Microsystems, Inc. All rights reserved.
+# Use is subject to license terms.
+#
+
+#
+# Copyright (c) 2016 by Delphix. All rights reserved.
+#
+
+. $STF_SUITE/tests/functional/atime/atime.cfg
+. $STF_SUITE/include/libtest.shlib
+
+#
+# Check if the access time for specified file is updated.
+#
+# $1 Given an absolute path to a file name
+#
+# Return value:
+# 0 -> The access time is updated.
+# 1 -> The access time is not updated.
+#
+function check_atime_updated
+{
+ typeset filename=$1
+
+ if is_linux; then
+ typeset before=$(stat -c %X $filename)
+ sleep 2
+ elif is_freebsd; then
+ typeset before=$(stat -f %a $filename)
+ sleep 2
+ else
+ typeset before=$(ls -Eu $filename | awk '{print $7}')
+ fi
+
+ log_must cat $filename
+
+ if is_linux; then
+ typeset after=$(stat -c %X $filename)
+ elif is_freebsd; then
+ typeset after=$(stat -f %a $filename)
+ else
+ typeset after=$(ls -Eu $filename | awk '{print $7}')
+ fi
+
+ if [[ $before != $after ]]; then
+ return 0
+ else
+ return 1
+ fi
+}
+
+function setup_snap_clone
+{
+ if [ -d "/$TESTPOOL/$TESTFS" ]; then
+ # No mountpoint case (default).
+ log_must touch /$TESTPOOL/$TESTFS/$TESTFILE
+ else
+ # Create two file to verify snapshot.
+ log_must touch $TESTDIR/$TESTFILE
+ fi
+
+ create_snapshot $TESTPOOL/$TESTFS $TESTSNAP
+ create_clone $TESTPOOL/$TESTFS@$TESTSNAP $TESTPOOL/$TESTCLONE
+}
+
+function reset_atime
+{
+ zfs inherit atime $TESTPOOL
+ zfs inherit atime $TESTPOOL/$TESTFS
+ zfs inherit atime $TESTPOOL/$TESTCLONE
+ zfs inherit relatime $TESTPOOL
+ zfs inherit relatime $TESTPOOL/$TESTFS
+ zfs inherit relatime $TESTPOOL/$TESTCLONE
+}
+
+function cleanup
+{
+ destroy_clone $TESTPOOL/$TESTCLONE
+ destroy_snapshot $TESTPOOL/$TESTFS@$TESTSNAP
+}