tools/testing/selftests/zram/zram02.sh

   1 #!/bin/bash
   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 # Test checks that we can create swap zram device.
  15 #
  16 # Author: Alexey Kodanev <alexey.kodanev@oracle.com>
  17 # Modified: Naresh Kamboju <naresh.kamboju@linaro.org>
  18
  19 TCID="zram02"
  20 ERR_CODE=0
  21
  22 . ./zram_lib.sh
  23
  24 # Test will create the following number of zram devices:
  25 dev_num=1
  26 # This is a list of parameters for zram devices.
  27 # Number of items must be equal to 'dev_num' parameter.
  28 zram_max_streams="2"
  29
  30 # The zram sysfs node 'disksize' value can be either in bytes,
  31 # or you can use mem suffixes. But in some old kernels, mem
  32 # suffixes are not supported, for example, in RHEL6.6GA's kernel
  33 # layer, it uses strict_strtoull() to parse disksize which does
  34 # not support mem suffixes, in some newer kernels, they use
  35 # memparse() which supports mem suffixes. So here we just use
  36 # bytes to make sure everything works correctly.
  37 zram_sizes="1048576" # 1M
  38 zram_mem_limits="1M"
  39
  40 check_prereqs
  41 zram_load
  42 zram_max_streams
  43 zram_set_disksizes
  44 zram_set_memlimit
  45 zram_makeswap
  46 zram_swapoff
  47 zram_cleanup
  48 zram_unload
  49
  50 if [ $ERR_CODE -ne 0 ]; then
  51         echo "$TCID : [FAIL]"
  52 else
  53         echo "$TCID : [PASS]"
  54 fi