1#!/usr/bin/bash -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 2007 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. $STF_SUITE/tests/functional/reservation/reservation.shlib 34 35# 36# DESCRIPTION: 37# 38# In pool with a full filesystem and a filesystem with a reservation 39# destroying another filesystem should allow more data to be written to 40# the full filesystem 41# 42# 43# STRATEGY: 44# 1) Create a filesystem as dataset 45# 2) Create a filesystem at the same level 46# 3) Set a reservation on the dataset filesystem 47# 4) Fill up the second filesystem 48# 5) Destroy the dataset filesystem 49# 6) Verify can write more data to the full filesystem 50# 51 52verify_runnable "both" 53 54log_assert "Destroying top level filesystem with reservation allows more " \ 55 "data to be written to another top level filesystem" 56 57function cleanup 58{ 59 datasetexists $TESTPOOL/$TESTFS1 && \ 60 log_must zfs destroy $TESTPOOL/$TESTFS1 61 62 [[ -e $TESTDIR/$TESTFILE1 ]] && log_must rm -rf $TESTDIR/$TESTFILE1 63 [[ -e $TESTDIR/$TESTFILE2 ]] && log_must rm -rf $TESTDIR/$TESTFILE2 64} 65 66log_onexit cleanup 67 68log_must zfs create $TESTPOOL/$TESTFS1 69 70space_avail=`get_prop available $TESTPOOL` 71 72# 73# To make sure this test doesn't take too long to execute on 74# large pools, we calculate a reservation setting which when 75# applied to the dataset filesystem will ensure we have 76# RESV_FREE_SPACE left free in the pool. 77# 78((resv_size_set = space_avail - RESV_FREE_SPACE)) 79 80log_must zfs set reservation=$resv_size_set $TESTPOOL/$TESTFS1 81 82space_avail_still=`get_prop available $TESTPOOL` 83 84fill_size=`expr $space_avail_still + $RESV_TOLERANCE` 85write_count=`expr $fill_size / $BLOCK_SIZE` 86 87# Now fill up the filesystem (which doesn't have a reservation set 88# and thus will use up whatever free space is left in the pool). 89file_write -o create -f $TESTDIR/$TESTFILE1 -b $BLOCK_SIZE -c $write_count -d 0 90ret=$? 91if (($ret != $ENOSPC)); then 92 log_fail "Did not get ENOSPC as expected (got $ret)." 93fi 94 95log_must zfs destroy -f $TESTPOOL/$TESTFS1 96 97log_must file_write -o create -f $TESTDIR/$TESTFILE2 -b pagesize \ 98 -c 1000 -d 0 99 100log_pass "Destroying top level filesystem with reservation allows more data " \ 101 "to be written to another top level filesystem" 102