usr/src/test/zfs-tests/tests/functional/compression/compress_004_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 2007 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
  34 #
  35 # DESCRIPTION:
  36 # With 'compression' set, a file with non-power-of-2 blocksize storage space
  37 # can be freed as will normally.
  38 #
  39 # STRATEGY:
  40 #       1. Set 'compression' or 'compress' to on or lzjb
  41 #       2. Set different recordsize with ZFS filesystem
  42 #       3. Repeatedly using 'randfree_file' to create a file and then free its
  43 #          storage space with different range, the system should work normally.
  44 #
  45
  46 verify_runnable "both"
  47
  48 function cleanup
  49 {
  50         rm -f $TESTDIR/*
  51 }
  52
  53 function create_free_testing #<file size> <file>
  54 {
  55         typeset -i fsz=$1
  56         typeset file=$2
  57         typeset -i start=0
  58         typeset -i len=0
  59         typeset -i dist=0
  60
  61         for start in 0 `expr $RANDOM % $fsz`
  62         do
  63                 (( dist = fsz - start ))
  64                 for len in `expr $RANDOM % $dist` $dist \
  65                         `expr $start + $dist`; do
  66                         log_must randfree_file -l fsz -s $start \
  67                                 -n $len $file
  68                         [[ -e $file ]] && \
  69                                 log_must rm -f $file
  70                 done
  71         done
  72 }
  73
  74
  75 log_assert "Creating non-power-of-2 blocksize file and freeing the file \
  76         storage space at will should work normally with compression setting"
  77 log_onexit cleanup
  78
  79 fs=$TESTPOOL/$TESTFS
  80 single_blk_file=$TESTDIR/singleblkfile.$$
  81 multi_blk_file=$TESTDIR/multiblkfile.$$
  82 typeset -i blksize=512
  83 typeset -i fsize=0
  84 typeset -i avail=0
  85 typeset -i blknum=0
  86
  87 for propname in "compression" "compress"
  88 do
  89         for value in $(get_compress_opts zfs_compress)
  90         do
  91                 log_must zfs set compression=$value $fs
  92                 real_val=$(get_prop $propname $fs)
  93                 if [[ $value == "gzip-6" ]]; then
  94                         value="gzip"
  95                 fi
  96                 [[ $real_val != $value ]] && \
  97                         log_fail "Set property $propname=$value failed."
  98
  99                 (( blksize = 512 ))
 100                 while (( blksize <= 131072 )); do
 101                         log_must zfs set recordsize=$blksize $fs
 102
 103                         # doing single block testing
 104                         (( fsize = $RANDOM ))
 105                         if (( fsize > blksize )); then
 106                                 (( fsize = fsize % blksize ))
 107                         fi
 108                         if (( (fsize % 2) == 0 )); then
 109                                 #make sure fsize is non-power-of-2
 110                                 (( fsize = fsize + 1 ))
 111                         fi
 112                         create_free_testing $fsize $single_blk_file
 113
 114                         # doing multiple blocks testing
 115                         avail=$(get_prop available $fs)
 116                         (( blknum = avail / blksize ))
 117                         # we just test <10 multi-blocks to limit testing time
 118                         (( blknum = blknum % 9 ))
 119                         while (( blknum < 2 )); do
 120                                 (( blknum = blknum + $RANDOM % 9 ))
 121                         done
 122                         if (( (blknum % 2) == 0 )); then
 123                                 (( blknum = blknum + 1 )) # keep blknum as odd
 124                         fi
 125                         (( fsize = blknum * blksize ))
 126                         create_free_testing $fsize $multi_blk_file
 127
 128                         (( blksize = blksize * 2 ))
 129                 done
 130         done
 131 done
 132
 133 log_pass "Creating and freeing non-power-of-2 blocksize file work as expected."