tools/testing/selftests/zram/zram02.sh

   1 #!/bin/bash
   2 # SPDX-License-Identifier: GPL-2.0-or-later
   3 # Copyright (c) 2015 Oracle and/or its affiliates. All Rights Reserved.
   4 #
   5 # Test checks that we can create swap zram device.
   6 #
   7 # Author: Alexey Kodanev <alexey.kodanev@oracle.com>
   8 # Modified: Naresh Kamboju <naresh.kamboju@linaro.org>
   9
  10 TCID="zram02"
  11 ERR_CODE=0
  12
  13 . ./zram_lib.sh
  14
  15 # Test will create the following number of zram devices:
  16 dev_num=1
  17 # This is a list of parameters for zram devices.
  18 # Number of items must be equal to 'dev_num' parameter.
  19 zram_max_streams="2"
  20
  21 # The zram sysfs node 'disksize' value can be either in bytes,
  22 # or you can use mem suffixes. But in some old kernels, mem
  23 # suffixes are not supported, for example, in RHEL6.6GA's kernel
  24 # layer, it uses strict_strtoull() to parse disksize which does
  25 # not support mem suffixes, in some newer kernels, they use
  26 # memparse() which supports mem suffixes. So here we just use
  27 # bytes to make sure everything works correctly.
  28 zram_sizes="1048576" # 1M
  29 zram_mem_limits="1M"
  30
  31 check_prereqs
  32 zram_load
  33 zram_max_streams
  34 zram_set_disksizes
  35 zram_set_memlimit
  36 zram_makeswap
  37 zram_swapoff
  38 zram_cleanup
  39 zram_unload
  40
  41 if [ $ERR_CODE -ne 0 ]; then
  42         echo "$TCID : [FAIL]"
  43 else
  44         echo "$TCID : [PASS]"
  45 fi