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 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 regular volume (with implicit 39# reservation) destroying the volume should allow more data to be written 40# to the filesystem 41# 42# 43# STRATEGY: 44# 1) Create a regular (non-sparse) volume 45# 2) Create a filesystem at the same level 46# 3) Fill up the filesystem 47# 4) Destroy the volume 48# 5) Verify can write more data to the filesystem 49# 50 51verify_runnable "global" 52 53log_assert "Destroying a regular volume with reservation allows more data to" \ 54 " be written to top level filesystem" 55 56function cleanup 57{ 58 datasetexists $TESTPOOL/$TESTVOL && \ 59 log_must $ZFS destroy $TESTPOOL/$TESTVOL 60 61 [[ -e $TESTDIR/$TESTFILE1 ]] && log_must $RM -rf $TESTDIR/$TESTFILE1 62 [[ -e $TESTDIR/$TESTFILE2 ]] && log_must $RM -rf $TESTDIR/$TESTFILE2 63} 64log_onexit cleanup 65 66space_avail=$(largest_volsize_from_pool $TESTPOOL) 67 68# 69# To make sure this test doesn't take too long to execute on 70# large pools, we calculate a volume size which will ensure we 71# have RESV_FREE_SPACE left free in the pool. 72# 73((vol_set_size = space_avail - RESV_FREE_SPACE)) 74vol_set_size=$(floor_volsize $vol_set_size) 75 76# Creating a regular volume implicitly sets its reservation 77# property to the same value. 78log_must $ZFS create -V $vol_set_size $TESTPOOL/$TESTVOL 79 80space_avail_still=$(get_prop available $TESTPOOL) 81fill_size=$((space_avail_still + $RESV_TOLERANCE)) 82write_count=$((fill_size / BLOCK_SIZE)) 83 84# Now fill up the filesystem (which doesn't have a reservation set 85# and thus will use up whatever free space is left in the pool). 86$FILE_WRITE -o create -f $TESTDIR/$TESTFILE1 -b $BLOCK_SIZE -c $write_count -d 0 87ret=$? 88if (($ret != $ENOSPC)); then 89 log_fail "Did not get ENOSPC as expected (got $ret)." 90fi 91 92log_must $ZFS destroy -f $TESTPOOL/$TESTVOL 93 94log_must $FILE_WRITE -o create -f $TESTDIR/$TESTFILE2 -b $PAGESIZE \ 95 -c 1000 -d 0 96 97log_pass "Destroying volume with reservation allows more data to be written " \ 98 "to top level filesystem" 99