1#!/bin/ksh -p
2#
3# CDDL HEADER START
4#
5# This file and its contents are supplied under the terms of the
6# Common Development and Distribution License ("CDDL"), version 1.0.
7# You may only use this file in accordance with the terms of version
8# 1.0 of the CDDL.
9#
10# A full copy of the text of the CDDL should have accompanied this
11# source.  A copy is of the CDDL is also available via the Internet
12# at http://www.illumos.org/license/CDDL.
13#
14# CDDL HEADER END
15#
16
17#
18# Copyright (c) 2019 iXsystems, Inc.
19#
20
21. $STF_SUITE/include/libtest.shlib
22
23#
24# DESCRIPTION:
25#	zfs rename -u should rename datasets without unmounting them
26#
27# STRATEGY:
28#	1. Create a set of nested datasets.
29#	2. Verify datasets are mounted.
30#	3. Rename with -u and verify all datasets stayed mounted.
31#
32
33verify_runnable "both"
34
35function rename_cleanup
36{
37	cd $back
38	zfs destroy -fR $TESTPOOL/rename_test
39	zfs destroy -fR $TESTPOOL/renamed
40}
41
42back=$PWD
43log_onexit rename_cleanup
44
45log_must zfs create $TESTPOOL/rename_test
46log_must zfs create $TESTPOOL/rename_test/child
47log_must zfs create $TESTPOOL/rename_test/child/grandchild
48
49if ! ismounted $TESTPOOL/rename_test; then
50	log_fail "$TESTPOOL/rename_test is not mounted"
51fi
52if ! ismounted $TESTPOOL/rename_test/child; then
53	log_fail "$TESTPOOL/rename_test/child is not mounted"
54fi
55if ! ismounted $TESTPOOL/rename_test/child/grandchild; then
56	log_fail "$TESTPOOL/rename_test/child/grandchild is not mounted"
57fi
58
59mntp_p=$(get_prop mountpoint $TESTPOOL/rename_test)
60mntp_c=$(get_prop mountpoint $TESTPOOL/rename_test/child)
61mntp_g=$(get_prop mountpoint $TESTPOOL/rename_test/child/grandchild)
62
63log_must cd $mntp_g
64log_mustnot zfs rename $TESTPOOL/rename_test $TESTPOOL/renamed
65log_must zfs rename -u $TESTPOOL/rename_test $TESTPOOL/renamed
66
67log_mustnot zfs list $TESTPOOL/rename_test
68log_mustnot zfs list $TESTPOOL/rename_test/child
69log_mustnot zfs list $TESTPOOL/rename_test/child/grandchild
70
71log_must zfs list $TESTPOOL/renamed
72log_must zfs list $TESTPOOL/renamed/child
73log_must zfs list $TESTPOOL/renamed/child/grandchild
74
75missing=$(zfs mount | awk \
76    -v genpat=$TESTPOOL/renamed \
77    -v mntp_p=$mntp_p \
78    -v mntp_c=$mntp_c \
79    -v mntp_g=$mntp_g '
80    BEGIN { p = c = g = 0 }
81    $1 ~ genpat && $2 == mntp_p { p = 1 }
82    $1 ~ genpat && $2 == mntp_c { c = 1 }
83    $1 ~ genpat && $2 == mntp_g { g = 1 }
84    END {
85	if (p != 1)
86		print mntp_p
87	if (c != 1)
88		print mntp_c
89	if (g != 1)
90		print mntp_g
91    }')
92[[ -z "$missing" ]] || log_fail "Mountpoints no longer mounted: $missing"
93
94log_pass "Verified rename -u does not unmount datasets"
95