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 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 52 verify_runnable "both" 53 54 log_assert "Destroying top level filesystem with reservation allows more " \ 55 "data to be written to another top level filesystem" 56 57 function 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 66 log_onexit cleanup 67 68 log_must $ZFS create $TESTPOOL/$TESTFS1 69 70 space_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 80 log_must $ZFS set reservation=$resv_size_set $TESTPOOL/$TESTFS1 81 82 space_avail_still=`get_prop available $TESTPOOL` 83 84 fill_size=`expr $space_avail_still + $RESV_TOLERANCE` 85 write_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). 89 $FILE_WRITE -o create -f $TESTDIR/$TESTFILE1 -b $BLOCK_SIZE -c $write_count -d 0 90 ret=$? 91 if (($ret != $ENOSPC)); then 92 log_fail "Did not get ENOSPC as expected (got $ret)." 93 fi 94 95 log_must $ZFS destroy -f $TESTPOOL/$TESTFS1 96 97 log_must $FILE_WRITE -o create -f $TESTDIR/$TESTFILE2 -b $PAGESIZE \ 98 -c 1000 -d 0 99 100 log_pass "Destroying top level filesystem with reservation allows more data " \ 101 "to be written to another top level filesystem"