1 #!/bin/sh 2 # Copyright (c) 2015 Oracle and/or its affiliates. All Rights Reserved. 3 # 4 # This program is free software; you can redistribute it and/or 5 # modify it under the terms of the GNU General Public License as 6 # published by the Free Software Foundation; either version 2 of 7 # the License, or (at your option) any later version. 8 # 9 # This program is distributed in the hope that it would be useful, 10 # but WITHOUT ANY WARRANTY; without even the implied warranty of 11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 # GNU General Public License for more details. 13 # 14 # You should have received a copy of the GNU General Public License 15 # along with this program; if not, write the Free Software Foundation, 16 # Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA 17 # 18 # Author: Alexey Kodanev <alexey.kodanev (at] oracle.com> 19 20 dev_makeswap=-1 21 dev_mounted=-1 22 23 trap tst_exit INT 24 25 zram_cleanup() 26 { 27 tst_resm TINFO "zram cleanup" 28 local i= 29 for i in $(seq 0 $dev_makeswap); do 30 swapoff /dev/zram$i 31 done 32 33 for i in $(seq 0 $dev_mounted); do 34 umount /dev/zram$i 35 done 36 37 for i in $(seq 0 $(($dev_num - 1))); do 38 echo 1 > /sys/block/zram${i}/reset 39 done 40 41 rmmod zram > /dev/null 2>&1 42 43 tst_rmdir 44 } 45 46 zram_load() 47 { 48 tst_resm TINFO "create '$dev_num' zram device(s)" 49 modprobe zram num_devices=$dev_num || \ 50 tst_brkm TBROK "failed to insert zram module" 51 52 dev_num_created=$(ls /dev/zram* | wc -w) 53 54 if [ "$dev_num_created" -ne "$dev_num" ]; then 55 tst_brkm TFAIL "unexpected num of devices: $dev_num_created" 56 else 57 tst_resm TPASS "test succeeded" 58 fi 59 60 tst_tmpdir 61 } 62 63 zram_max_streams() 64 { 65 tst_kvercmp 3 15 0 66 if [ $? -eq 0 ]; then 67 tst_resm TCONF "device attribute max_comp_streams is"\ 68 "introduced since kernel v3.15, the running kernel"\ 69 "does not support it" 70 return 71 else 72 tst_resm TINFO "set max_comp_streams to zram device(s)" 73 fi 74 75 local i=0 76 for max_s in $zram_max_streams; do 77 local sys_path="/sys/block/zram${i}/max_comp_streams" 78 echo $max_s > $sys_path || \ 79 tst_brkm TFAIL "failed to set '$max_s' to $sys_path" 80 local max_streams=$(cat $sys_path) 81 82 [ "$max_s" -ne "$max_streams" ] && \ 83 tst_brkm TFAIL "can't set max_streams '$max_s', get $max_stream" 84 85 i=$(($i + 1)) 86 tst_resm TINFO "$sys_path = '$max_streams' ($i/$dev_num)" 87 done 88 89 tst_resm TPASS "test succeeded" 90 } 91 92 zram_compress_alg() 93 { 94 tst_kvercmp 3 15 0 95 if [ $? -eq 0 ]; then 96 tst_resm TCONF "device attribute comp_algorithm is"\ 97 "introduced since kernel v3.15, the running kernel"\ 98 "does not support it" 99 return 100 else 101 tst_resm TINFO "test that we can set compression algorithm" 102 fi 103 104 local algs=$(cat /sys/block/zram0/comp_algorithm) 105 tst_resm TINFO "supported algs: $algs" 106 local i=0 107 for alg in $zram_algs; do 108 local sys_path="/sys/block/zram${i}/comp_algorithm" 109 echo "$alg" > $sys_path || \ 110 tst_brkm TFAIL "can't set '$alg' to $sys_path" 111 i=$(($i + 1)) 112 tst_resm TINFO "$sys_path = '$alg' ($i/$dev_num)" 113 done 114 115 tst_resm TPASS "test succeeded" 116 } 117 118 zram_set_disksizes() 119 { 120 tst_resm TINFO "set disk size to zram device(s)" 121 local i=0 122 for ds in $zram_sizes; do 123 local sys_path="/sys/block/zram${i}/disksize" 124 echo "$ds" > $sys_path || \ 125 tst_brkm TFAIL "can't set '$ds' to $sys_path" 126 127 i=$(($i + 1)) 128 tst_resm TINFO "$sys_path = '$ds' ($i/$dev_num)" 129 done 130 131 tst_resm TPASS "test succeeded" 132 } 133 134 zram_set_memlimit() 135 { 136 tst_kvercmp 3 18 0 137 if [ $? -eq 0 ]; then 138 tst_resm TCONF "device attribute mem_limit is"\ 139 "introduced since kernel v3.18, the running kernel"\ 140 "does not support it" 141 return 142 else 143 tst_resm TINFO "set memory limit to zram device(s)" 144 fi 145 146 local i=0 147 for ds in $zram_mem_limits; do 148 local sys_path="/sys/block/zram${i}/mem_limit" 149 echo "$ds" > $sys_path || \ 150 tst_brkm TFAIL "can't set '$ds' to $sys_path" 151 152 i=$(($i + 1)) 153 tst_resm TINFO "$sys_path = '$ds' ($i/$dev_num)" 154 done 155 156 tst_resm TPASS "test succeeded" 157 } 158 159 zram_makeswap() 160 { 161 tst_resm TINFO "make swap with zram device(s)" 162 tst_check_cmds mkswap swapon swapoff 163 local i=0 164 for i in $(seq 0 $(($dev_num - 1))); do 165 mkswap /dev/zram$i > err.log 2>&1 166 if [ $? -ne 0 ]; then 167 cat err.log 168 tst_brkm TFAIL "mkswap /dev/zram$1 failed" 169 fi 170 171 swapon /dev/zram$i > err.log 2>&1 172 if [ $? -ne 0 ]; then 173 cat err.log 174 tst_brkm TFAIL "swapon /dev/zram$1 failed" 175 fi 176 177 tst_resm TINFO "done with /dev/zram$i" 178 dev_makeswap=$i 179 done 180 181 tst_resm TPASS "making zram swap succeeded" 182 } 183 184 zram_swapoff() 185 { 186 tst_check_cmds swapoff 187 local i= 188 for i in $(seq 0 $dev_makeswap); do 189 swapoff /dev/zram$i > err.log 2>&1 190 if [ $? -ne 0 ]; then 191 cat err.log 192 tst_brkm TFAIL "swapoff /dev/zram$i failed" 193 fi 194 done 195 dev_makeswap=-1 196 197 tst_resm TPASS "swapoff completed" 198 } 199 200 zram_makefs() 201 { 202 tst_check_cmds mkfs which 203 local i=0 204 for fs in $zram_filesystems; do 205 # if requested fs not supported default it to ext2 206 which mkfs.$fs > /dev/null 2>&1 || fs=ext2 207 208 tst_resm TINFO "make $fs filesystem on /dev/zram$i" 209 mkfs.$fs /dev/zram$i > err.log 2>&1 210 if [ $? -ne 0 ]; then 211 cat err.log 212 tst_brkm TFAIL "failed to make $fs on /dev/zram$i" 213 fi 214 i=$(($i + 1)) 215 done 216 217 tst_resm TPASS "zram_makefs succeeded" 218 } 219 220 zram_mount() 221 { 222 local i=0 223 for i in $(seq 0 $(($dev_num - 1))); do 224 tst_resm TINFO "mount /dev/zram$i" 225 mkdir zram$i 226 mount /dev/zram$i zram$i > /dev/null || \ 227 tst_brkm TFAIL "mount /dev/zram$i failed" 228 dev_mounted=$i 229 done 230 231 tst_resm TPASS "mount of zram device(s) succeeded" 232 } 233 234 modinfo zram > /dev/null 2>&1 || 235 tst_brkm TCONF "zram not configured in kernel" 236
