tests/zfs-tests/tests/functional/zvol/zvol_swap/zvol_swap_005_pos.ksh

   1 #!/bin/ksh -p
   2 #
   3 # CDDL HEADER START
   4 #
   5 # The contents of this file are subject to the terms of the
   6 # Common Development and Distribution License (the "License").
   7 # You may not use this file except in compliance with the License.
   8 #
   9 # You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
  10 # or http://www.opensolaris.org/os/licensing.
  11 # See the License for the specific language governing permissions
  12 # and limitations under the License.
  13 #
  14 # When distributing Covered Code, include this CDDL HEADER in each
  15 # file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  16 # If applicable, add the following below this CDDL HEADER, with the
  17 # fields enclosed by brackets "[]" replaced with your own identifying
  18 # information: Portions Copyright [yyyy] [name of copyright owner]
  19 #
  20 # CDDL HEADER END
  21 #
  22
  23 #
  24 # Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
  25 # Use is subject to license terms.
  26 #
  27
  28 #
  29 # Copyright (c) 2013, 2016 by Delphix. All rights reserved.
  30 #
  31
  32 . $STF_SUITE/include/libtest.shlib
  33 . $STF_SUITE/tests/functional/zvol/zvol_common.shlib
  34
  35 #
  36 # DESCRIPTION:
  37 #       swaplow + swaplen must be less than or equal to the volume size.
  38 #
  39 # STRATEGY:
  40 #       1. Get test system page size and test volume size.
  41 #       2. Random get swaplow and swaplen.
  42 #       3. Verify swap -a should succeed when swaplow + swaplen <= volume size.
  43 #
  44
  45 verify_runnable "global"
  46
  47 if is_linux || is_freebsd; then
  48         log_unsupported "swaplow + swaplen unsupported Linux/FreeBSD options"
  49 fi
  50
  51 assertion="Verify the sum of swaplow and swaplen is less or equal to volsize"
  52 log_assert $assertion
  53
  54 typeset vol=$TESTPOOL/$TESTVOL
  55 typeset swapname="${ZVOL_DEVDIR}/$vol"
  56 typeset -i pageblocks volblocks max_swaplow
  57 #
  58 # Both swaplow and swaplen are the desired length of
  59 # the swap area in 512-byte blocks.
  60 #
  61 ((pageblocks = $(getconf PAGESIZE) / 512))
  62 ((volblocks = $(get_prop volsize $vol) / 512))
  63 ((max_swaplow = (volblocks - (pageblocks * 2))))
  64
  65 for i in {0..10}; do
  66         swaplow=$(shuf -n 1 -i ${pageblocks}-${max_swaplow})
  67         ((maxlen = max_swaplow - swaplow))
  68         swaplen=$(shuf -n 1 -i ${pageblocks}-${maxlen})
  69         log_must swap -a $swapname $swaplow $swaplen
  70         log_must swap -d $swapname $swaplow
  71 done
  72
  73 log_pass $assertion