166 lines
3.5 KiB
Bash
Executable File
166 lines
3.5 KiB
Bash
Executable File
#!/bin/sh
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# Copyright (c) 2015 Oracle and/or its affiliates. All Rights Reserved.
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# Copyright (c) 2019-2021 Petr Vorel <pvorel@suse.cz>
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# Author: Alexey Kodanev <alexey.kodanev@oracle.com>
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dev_makeswap=-1
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dev_mounted=-1
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TST_NEEDS_TMPDIR=1
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TST_NEEDS_ROOT=1
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TST_SETUP="zram_load"
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TST_CLEANUP="zram_cleanup"
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TST_NEEDS_DRIVERS="zram"
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. tst_test.sh
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zram_cleanup()
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{
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local i
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for i in $(seq 0 $dev_makeswap); do
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swapoff /dev/zram$i
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done
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for i in $(seq 0 $dev_mounted); do
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umount /dev/zram$i
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done
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for i in $(seq 0 $(($dev_num - 1))); do
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echo 1 > /sys/block/zram${i}/reset
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done
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rmmod zram > /dev/null 2>&1
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}
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zram_load()
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{
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local tmp
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if [ -z "$dev_num" ]; then
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dev_num=0
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for tmp in $zram_max_streams; do
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dev_num=$((dev_num+1))
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done
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fi
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if [ $dev_num -le 0 ]; then
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tst_brk TBROK "dev_num must be > 0"
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fi
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tst_set_timeout $((dev_num*450))
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tst_res TINFO "create '$dev_num' zram device(s)"
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modprobe zram num_devices=$dev_num || \
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tst_brk TBROK "failed to insert zram module"
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dev_num_created=$(ls /dev/zram* | wc -w)
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if [ "$dev_num_created" -ne "$dev_num" ]; then
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tst_brk TFAIL "unexpected num of devices: $dev_num_created"
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fi
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tst_res TPASS "all zram devices successfully created"
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}
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zram_max_streams()
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{
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if tst_kvcmp -lt "3.15" -o -ge "4.7"; then
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tst_res TCONF "The device attribute max_comp_streams was"\
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"introduced in kernel 3.15 and deprecated in 4.7"
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return
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fi
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tst_res TINFO "set max_comp_streams to zram device(s)"
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local i=0
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for max_s in $zram_max_streams; do
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local sys_path="/sys/block/zram${i}/max_comp_streams"
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echo $max_s > $sys_path || \
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tst_brk TFAIL "failed to set '$max_s' to $sys_path"
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local max_streams=$(cat $sys_path)
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[ "$max_s" -ne "$max_streams" ] && \
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tst_brk TFAIL "can't set max_streams '$max_s', get $max_stream"
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i=$(($i + 1))
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tst_res TINFO "$sys_path = '$max_streams' ($i/$dev_num)"
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done
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tst_res TPASS "test succeeded"
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}
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zram_compress_alg()
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{
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if tst_kvcmp -lt "3.15"; then
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tst_res TCONF "device attribute comp_algorithm is"\
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"introduced since kernel v3.15, the running kernel"\
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"does not support it"
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return
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fi
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local i=0
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tst_res TINFO "test that we can set compression algorithm"
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local algs="$(sed 's/[][]//g' /sys/block/zram0/comp_algorithm)"
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tst_res TINFO "supported algs: $algs"
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local dev_max=$(($dev_num - 1))
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for i in $(seq 0 $dev_max); do
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for alg in $algs; do
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local sys_path="/sys/block/zram${i}/comp_algorithm"
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echo "$alg" > $sys_path || \
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tst_brk TFAIL "can't set '$alg' to $sys_path"
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tst_res TINFO "$sys_path = '$alg' ($i/$dev_max)"
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done
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done
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tst_res TPASS "test succeeded"
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}
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zram_set_disksizes()
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{
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local i=0
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local ds
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tst_res TINFO "set disk size to zram device(s)"
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for ds in $zram_sizes; do
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local sys_path="/sys/block/zram${i}/disksize"
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echo "$ds" > $sys_path || \
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tst_brk TFAIL "can't set '$ds' to $sys_path"
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i=$(($i + 1))
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tst_res TINFO "$sys_path = '$ds' ($i/$dev_num)"
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done
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tst_res TPASS "test succeeded"
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}
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zram_set_memlimit()
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{
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if tst_kvcmp -lt "3.18"; then
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tst_res TCONF "device attribute mem_limit is"\
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"introduced since kernel v3.18, the running kernel"\
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"does not support it"
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return
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fi
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local i=0
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local ds
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tst_res TINFO "set memory limit to zram device(s)"
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for ds in $zram_mem_limits; do
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local sys_path="/sys/block/zram${i}/mem_limit"
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echo "$ds" > $sys_path || \
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tst_brk TFAIL "can't set '$ds' to $sys_path"
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i=$(($i + 1))
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tst_res TINFO "$sys_path = '$ds' ($i/$dev_num)"
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done
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tst_res TPASS "test succeeded"
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}
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