zfs/tests/zfs-tests/tests/functional/snapused/snapused.kshlib

   1 #
   2 # CDDL HEADER START
   3 #
   4 # The contents of this file are subject to the terms of the
   5 # Common Development and Distribution License (the "License").
   6 # You may not use this file except in compliance with the License.
   7 #
   8 # You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9 # or http://www.opensolaris.org/os/licensing.
  10 # See the License for the specific language governing permissions
  11 # and limitations under the License.
  12 #
  13 # When distributing Covered Code, include this CDDL HEADER in each
  14 # file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15 # If applicable, add the following below this CDDL HEADER, with the
  16 # fields enclosed by brackets "[]" replaced with your own identifying
  17 # information: Portions Copyright [yyyy] [name of copyright owner]
  18 #
  19 # CDDL HEADER END
  20 #
  21
  22 #
  23 # Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
  24 # Use is subject to license terms.
  25 #
  26
  27 #
  28 # Copyright (c) 2013 by Delphix. All rights reserved.
  29 #
  30
  31 . $STF_SUITE/include/libtest.shlib
  32
  33 export USEDTEST=$TESTPOOL/$TESTFS/usedtest-snapused
  34
  35 function _check_used # dataset
  36 {
  37         typeset dataset=$1
  38
  39         if [[ "$(get_prop type $dataset)" == "snapshot" ]]; then
  40                 return
  41         fi
  42
  43         used=$(get_prop used $dataset)
  44         usedbychildren=$(get_prop usedbychildren $dataset)
  45         usedbydataset=$(get_prop usedbydataset $dataset)
  46         usedbyrefreservation=$(get_prop usedbyrefreservation $dataset)
  47         usedbysnapshots=$(get_prop usedbysnapshots $dataset)
  48         ((used_sum = usedbychildren + usedbydataset + \
  49                 usedbyrefreservation + usedbysnapshots))
  50         if ((used != used_sum)); then
  51                 log_fail "$dataset: used($used) is not the sum($used_sum) of usedby*"
  52         fi
  53 }
  54
  55 function check_used # dataset
  56 {
  57         typeset dataset=$1
  58         for child in $($ZFS list -rH -t filesystem,volume -o name $dataset)
  59         do
  60                 _check_used $child
  61         done
  62 }
  63
  64 function check_usedbychildren # dataset
  65 {
  66         typeset dataset=$1
  67         typeset -i usedbychildren_sum=0
  68         typeset -i parent_usedbychildren=0
  69         for child in $($ZFS list -rH -t filesystem,volume -o name $dataset)
  70         do
  71                 if [[ "$(get_prop type $child)" == "snapshot" ]]; then
  72                         continue
  73                 fi
  74
  75                 # parent
  76                 if [[ "$child" == "$dataset" ]]; then
  77                         parent_usedbychildren=$(get_prop usedbychildren $child)
  78                 else #child
  79                         reservation=$(get_prop reservation $child)
  80                         used=$(get_prop used $child)
  81                         if ((reservation > used)); then
  82                                 ((usedbychildren_sum += reservation))
  83                         else
  84                                 ((usedbychildren_sum += used))
  85                         fi
  86                 fi
  87         done
  88
  89         if ((parent_usedbychildren != usedbychildren_sum)); then
  90                 log_fail "$dataset: usedbychildren($parent_usedbychildren) is not the sum($usedbychildren_sum) of used by children"
  91         fi
  92 }
  93
  94 function _check_usedbydataset # dataset
  95 {
  96         typeset dataset=$1
  97         if [[ "$(get_prop type $dataset)" == "snapshot" ]]; then
  98                 return
  99         fi
 100
 101         usedbydataset=$(get_prop usedbydataset $dataset)
 102         referenced=$(get_prop referenced $dataset)
 103
 104         is_cloned=$(get_prop is:cloned $dataset)
 105
 106         if [[ "$is_cloned" == "yes" ]]; then
 107                 if ((usedbydataset > referenced)); then
 108                         log_fail "$dataset(cloned): usedbydataset($usedbydataset) is more than referenced($referenced)"
 109                 fi
 110         else
 111                 #
 112                 # if non-clones, should usedbydataset == referenced
 113                 #
 114                 if ((usedbydataset != referenced)); then
 115                         log_fail "$dataset: usedbydataset($usedbydataset) is not equal to referenced($referenced)"
 116                 fi
 117         fi
 118 }
 119
 120 function check_usedbydataset # dataset
 121 {
 122         typeset dataset=$1
 123         for child in $($ZFS list -rH -t filesystem,volume -o name $dataset)
 124         do
 125                 _check_usedbydataset $child
 126         done
 127 }
 128
 129 function _check_usedbyrefreservation # dataset
 130 {
 131         typeset dataset=$1
 132         if [[ "$(get_prop type $dataset)" == "snapshot" ]]; then
 133                 return
 134         fi
 135
 136         usedbyrefreservation=$(get_prop usedbyrefreservation $dataset)
 137         referenced=$(get_prop referenced $dataset)
 138         refreservation=$(get_prop refreservation $dataset)
 139         ((diff_ref = refreservation - referenced))
 140         if ((usedbyrefreservation > refreservation || \
 141                 usedbyrefreservation < diff_ref)); then
 142                 log_fail "$dataset: usedbyrefreservation($usedbyrefreservation) checking is not ok"
 143         fi
 144 }
 145
 146 function check_usedbyrefreservation # dataset
 147 {
 148         typeset dataset=$1
 149         for child in $($ZFS list -rH -t filesystem,volume -o name $dataset)
 150         do
 151                 _check_usedbyrefreservation $child
 152         done
 153 }
 154
 155 function check_usedbysnapshots # dataset
 156 {
 157         typeset dataset=$1
 158         typeset -i usedbysnapshots_sum=0
 159         typeset -i parent_usedbysnapshots=0
 160         for child in $($ZFS list -rH -t filesystem,volume,snapshot -o name $dataset)
 161         do
 162                 # parent
 163                 if [[ "$child" == "$dataset" ]]; then
 164                         parent_usedbysnapshots=$(get_prop usedbysnapshots $child)
 165                         continue
 166                 fi
 167
 168                 if [[ "$(get_prop type $child)" != "snapshot" ]]; then
 169                         continue
 170                 fi
 171
 172                 if [[ "$child" != "$dataset@"* ]]; then
 173                         continue
 174                 fi
 175
 176                 # snapshot
 177                 used=$(get_prop used $child)
 178                 ((usedbysnapshots_sum += used))
 179         done
 180
 181         if ((parent_usedbysnapshots < usedbysnapshots_sum)); then
 182                 log_fail "$dataset: usedbysnapshots($parent_usedbysnapshots) is not more than or equal to" \
 183                                 "the sum($usedbysnapshots_sum) of used of snapshots"
 184         fi
 185 }