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 if tst_kvcmp -lt "3.15" -o -ge "4.7"; then 66 tst_resm TCONF "The device attribute max_comp_streams was"\ 67 "introduced in kernel 3.15 and deprecated in 4.7" 68 return 69 fi 70 71 tst_resm TINFO "set max_comp_streams to zram device(s)" 72 73 local i=0 74 for max_s in $zram_max_streams; do 75 local sys_path="/sys/block/zram${i}/max_comp_streams" 76 echo $max_s > $sys_path || \ 77 tst_brkm TFAIL "failed to set '$max_s' to $sys_path" 78 local max_streams=$(cat $sys_path) 79 80 [ "$max_s" -ne "$max_streams" ] && \ 81 tst_brkm TFAIL "can't set max_streams '$max_s', get $max_stream" 82 83 i=$(($i + 1)) 84 tst_resm TINFO "$sys_path = '$max_streams' ($i/$dev_num)" 85 done 86 87 tst_resm TPASS "test succeeded" 88 } 89 90 zram_compress_alg() 91 { 92 if tst_kvcmp -lt "3.15"; then 93 tst_resm TCONF "device attribute comp_algorithm is"\ 94 "introduced since kernel v3.15, the running kernel"\ 95 "does not support it" 96 return 97 fi 98 99 tst_resm TINFO "test that we can set compression algorithm" 100 101 local algs=$(cat /sys/block/zram0/comp_algorithm) 102 tst_resm TINFO "supported algs: $algs" 103 local i=0 104 for alg in $zram_algs; do 105 local sys_path="/sys/block/zram${i}/comp_algorithm" 106 echo "$alg" > $sys_path || \ 107 tst_brkm TFAIL "can't set '$alg' to $sys_path" 108 i=$(($i + 1)) 109 tst_resm TINFO "$sys_path = '$alg' ($i/$dev_num)" 110 done 111 112 tst_resm TPASS "test succeeded" 113 } 114 115 zram_set_disksizes() 116 { 117 tst_resm TINFO "set disk size to zram device(s)" 118 local i=0 119 for ds in $zram_sizes; do 120 local sys_path="/sys/block/zram${i}/disksize" 121 echo "$ds" > $sys_path || \ 122 tst_brkm TFAIL "can't set '$ds' to $sys_path" 123 124 i=$(($i + 1)) 125 tst_resm TINFO "$sys_path = '$ds' ($i/$dev_num)" 126 done 127 128 tst_resm TPASS "test succeeded" 129 } 130 131 zram_set_memlimit() 132 { 133 if tst_kvcmp -lt "3.18"; then 134 tst_resm TCONF "device attribute mem_limit is"\ 135 "introduced since kernel v3.18, the running kernel"\ 136 "does not support it" 137 return 138 fi 139 140 tst_resm TINFO "set memory limit to zram device(s)" 141 142 local i=0 143 for ds in $zram_mem_limits; do 144 local sys_path="/sys/block/zram${i}/mem_limit" 145 echo "$ds" > $sys_path || \ 146 tst_brkm TFAIL "can't set '$ds' to $sys_path" 147 148 i=$(($i + 1)) 149 tst_resm TINFO "$sys_path = '$ds' ($i/$dev_num)" 150 done 151 152 tst_resm TPASS "test succeeded" 153 } 154 155 zram_makeswap() 156 { 157 tst_resm TINFO "make swap with zram device(s)" 158 tst_check_cmds mkswap swapon swapoff 159 local i=0 160 for i in $(seq 0 $(($dev_num - 1))); do 161 mkswap /dev/zram$i > err.log 2>&1 162 if [ $? -ne 0 ]; then 163 cat err.log 164 tst_brkm TFAIL "mkswap /dev/zram$1 failed" 165 fi 166 167 swapon /dev/zram$i > err.log 2>&1 168 if [ $? -ne 0 ]; then 169 cat err.log 170 tst_brkm TFAIL "swapon /dev/zram$1 failed" 171 fi 172 173 tst_resm TINFO "done with /dev/zram$i" 174 dev_makeswap=$i 175 done 176 177 tst_resm TPASS "making zram swap succeeded" 178 } 179 180 zram_swapoff() 181 { 182 tst_check_cmds swapoff 183 local i= 184 for i in $(seq 0 $dev_makeswap); do 185 swapoff /dev/zram$i > err.log 2>&1 186 if [ $? -ne 0 ]; then 187 cat err.log 188 tst_brkm TFAIL "swapoff /dev/zram$i failed" 189 fi 190 done 191 dev_makeswap=-1 192 193 tst_resm TPASS "swapoff completed" 194 } 195 196 zram_makefs() 197 { 198 tst_check_cmds mkfs which 199 local i=0 200 for fs in $zram_filesystems; do 201 # if requested fs not supported default it to ext2 202 which mkfs.$fs > /dev/null 2>&1 || fs=ext2 203 204 tst_resm TINFO "make $fs filesystem on /dev/zram$i" 205 mkfs.$fs /dev/zram$i > err.log 2>&1 206 if [ $? -ne 0 ]; then 207 cat err.log 208 tst_brkm TFAIL "failed to make $fs on /dev/zram$i" 209 fi 210 i=$(($i + 1)) 211 done 212 213 tst_resm TPASS "zram_makefs succeeded" 214 } 215 216 zram_mount() 217 { 218 local i=0 219 for i in $(seq 0 $(($dev_num - 1))); do 220 tst_resm TINFO "mount /dev/zram$i" 221 mkdir zram$i 222 mount /dev/zram$i zram$i > /dev/null || \ 223 tst_brkm TFAIL "mount /dev/zram$i failed" 224 dev_mounted=$i 225 done 226 227 tst_resm TPASS "mount of zram device(s) succeeded" 228 } 229 230 modinfo zram > /dev/null 2>&1 || 231 tst_brkm TCONF "zram not configured in kernel" 232
