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#!/usr/bin/bash -p
#
# 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 2018 Joyent, Inc.
#
. $STF_SUITE/include/libtest.shlib
. $STF_SUITE/tests/functional/reservation/reservation.shlib
#
# DESCRIPTION:
#
# The use of refreservation=auto on a filesystem does not change the
# refreservation and results in an error.
#
# STRATEGY:
# 1) Create a filesystem
# 2) Verify that zfs set refreservation=auto fails without changing
# refreservation from none.
# 3) Set refreservation to a valid value.
# 4) Verify that zfs set refreservation=auto fails without changing
# refreservation from the previous value.
#
verify_runnable "both"
fs=$TESTPOOL/$TESTFS/$(basename $0).$$
function cleanup
{
if datasetexists "$fs"; then
log_must zfs destroy -f "$fs"
fi
}
log_onexit cleanup
log_assert "refreservation=auto on a filesystem generates an error without" \
"changing refreservation"
space_avail=$(get_prop available $TESTPOOL)
(( fs_size = space_avail / 4 ))
# Create a filesystem with no refreservation
log_must zfs create $fs
resv=$(get_prop refreservation $fs)
log_must test $resv -eq 0
# Verify that refreservation=auto fails without altering refreservation
log_mustnot zfs set refreservation=auto $fs
resv=$(get_prop refreservation $fs)
log_must test $resv -eq 0
# Set refreservation and verify
log_must zfs set refreservation=$fs_size $fs
resv=$(get_prop refreservation $fs)
log_must test $resv -eq $fs_size
# Verify that refreservation=auto fails without altering refreservation
log_mustnot zfs set refreservation=auto $fs
resv=$(get_prop refreservation $fs)
log_must test $resv -eq $fs_size
log_pass "refreservation=auto does not work on filesystems, as expected"
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