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#!/bin/ksh -p
#
# CDDL HEADER START
#
# 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 is of the CDDL is also available via the Internet
# at http://www.illumos.org/license/CDDL.
#
# CDDL HEADER END
#
#
# Copyright (c) 2019 iXsystems, Inc.
#
. $STF_SUITE/include/libtest.shlib
#
# DESCRIPTION:
# zfs rename -u should rename datasets without unmounting them
#
# STRATEGY:
# 1. Create a set of nested datasets.
# 2. Verify datasets are mounted.
# 3. Rename with -u and verify all datasets stayed mounted.
#
verify_runnable "both"
function rename_cleanup
{
cd $back
zfs destroy -fR $TESTPOOL/rename_test
zfs destroy -fR $TESTPOOL/renamed
}
back=$(pwd)
log_onexit rename_cleanup
log_must zfs create $TESTPOOL/rename_test
log_must zfs create $TESTPOOL/rename_test/child
log_must zfs create $TESTPOOL/rename_test/child/grandchild
if ! ismounted $TESTPOOL/rename_test; then
log_fail "$TESTPOOL/rename_test is not mounted"
fi
if ! ismounted $TESTPOOL/rename_test/child; then
log_fail "$TESTPOOL/rename_test/child is not mounted"
fi
if ! ismounted $TESTPOOL/rename_test/child/grandchild; then
log_fail "$TESTPOOL/rename_test/child/grandchild is not mounted"
fi
mntp_p=$(get_prop mountpoint $TESTPOOL/rename_test)
mntp_c=$(get_prop mountpoint $TESTPOOL/rename_test/child)
mntp_g=$(get_prop mountpoint $TESTPOOL/rename_test/child/grandchild)
log_must cd $mntp_g
log_mustnot zfs rename $TESTPOOL/rename_test $TESTPOOL/renamed
log_must zfs rename -u $TESTPOOL/rename_test $TESTPOOL/renamed
log_mustnot zfs list $TESTPOOL/rename_test
log_mustnot zfs list $TESTPOOL/rename_test/child
log_mustnot zfs list $TESTPOOL/rename_test/child/grandchild
log_must zfs list $TESTPOOL/renamed
log_must zfs list $TESTPOOL/renamed/child
log_must zfs list $TESTPOOL/renamed/child/grandchild
missing=$(zfs mount | awk -v pat=$TESTPOOL/renamed '$1 ~ pat' | awk \
-v mntp_p=$mntp_p \
-v mntp_c=$mntp_c \
-v mntp_g=$mntp_g '
BEGIN { p = c = g = 0 }
$2 == mntp_p { p = 1 }
$2 == mntp_c { c = 1 }
$2 == mntp_g { g = 1 }
END {
if (p != 1)
print mntp_p
if (c != 1)
print mntp_c
if (g != 1)
print mntp_g
}')
[[ -z "$missing" ]] || log_fail "Mountpoints no longer mounted: $missing"
log_pass "Verified rename -u does not unmount datasets"
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