1#!/bin/ksh -p
2#
3# CDDL HEADER START
4#
5# The contents of this file are subject to the terms of the
6# Common Development and Distribution License (the "License").
7# You may not use this file except in compliance with the License.
8#
9# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10# or http://www.opensolaris.org/os/licensing.
11# See the License for the specific language governing permissions
12# and limitations under the License.
13#
14# When distributing Covered Code, include this CDDL HEADER in each
15# file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16# If applicable, add the following below this CDDL HEADER, with the
17# fields enclosed by brackets "[]" replaced with your own identifying
18# information: Portions Copyright [yyyy] [name of copyright owner]
19#
20# CDDL HEADER END
21#
22
23#
24# Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
25# Use is subject to license terms.
26#
27
28#
29# Copyright (c) 2013, 2016 by Delphix. All rights reserved.
30#
31
32. $STF_SUITE/include/libtest.shlib
33
34#
35# DESCRIPTION:
36#	refquotas are not limited by sub-filesystem snapshots.
37#
38# STRATEGY:
39#	1. Setting refquota < quota for parent
40#	2. Create file in sub-filesystem, take snapshot and remove the file
41#	3. Verify sub-filesystem snapshot will not consume refquota
42#
43
44verify_runnable "both"
45
46function cleanup
47{
48	log_must zfs destroy -rf $TESTPOOL/$TESTFS
49	log_must zfs create $TESTPOOL/$TESTFS
50	log_must zfs set mountpoint=$TESTDIR $TESTPOOL/$TESTFS
51}
52
53log_assert "refquotas are not limited by sub-filesystem snapshots."
54log_onexit cleanup
55
56TESTFILE='testfile'
57fs=$TESTPOOL/$TESTFS
58log_must zfs set quota=25M $fs
59log_must zfs set refquota=15M $fs
60log_must zfs create $fs/subfs
61
62mntpnt=$(get_prop mountpoint $fs/subfs)
63typeset -i i=0
64while ((i < 3)); do
65	log_must mkfile 7M $mntpnt/$TESTFILE.$i
66	log_must zfs snapshot $fs/subfs@snap.$i
67	log_must rm $mntpnt/$TESTFILE.$i
68
69	((i += 1))
70done
71
72#
73# Verify out of the limitation of 'quota'
74#
75log_mustnot mkfile 7M $mntpnt/$TESTFILE
76
77log_pass "refquotas are not limited by sub-filesystem snapshots"
78