tests/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 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
  67                         # Zero length results in EINVAL for fallocate(2).
  68                         if is_linux; then
  69                                 if (( len == 0 )); then
  70                                         continue
  71                                 fi
  72                         fi
  73
  74                         log_must $RANDFREE_FILE -l fsz -s $start \
  75                                 -n $len $file
  76                         [[ -e $file ]] && \
  77                                 log_must $RM -f $file
  78                 done
  79         done
  80 }
  81
  82
  83 log_assert "Creating non-power-of-2 blocksize file and freeing the file \
  84         storage space at will should work normally with compression setting"
  85 log_onexit cleanup
  86
  87 fs=$TESTPOOL/$TESTFS
  88 single_blk_file=$TESTDIR/singleblkfile.$$
  89 multi_blk_file=$TESTDIR/multiblkfile.$$
  90 typeset -i blksize=512
  91 typeset -i fsize=0
  92 typeset -i avail=0
  93 typeset -i blknum=0
  94
  95 for propname in "compression" "compress"
  96 do
  97         for value in $(get_compress_opts zfs_compress)
  98         do
  99                 log_must $ZFS set compression=$value $fs
 100                 real_val=$(get_prop $propname $fs)
 101                 if [[ $value == "gzip-6" ]]; then
 102                         value="gzip"
 103                 fi
 104                 [[ $real_val != $value ]] && \
 105                         log_fail "Set property $propname=$value failed."
 106
 107                 (( blksize = 512 ))
 108                 while (( blksize <= 131072 )); do
 109                         log_must $ZFS set recordsize=$blksize $fs
 110
 111                         # doing single block testing
 112                         (( fsize = $RANDOM ))
 113                         if (( fsize > blksize )); then
 114                                 (( fsize = fsize % blksize ))
 115                         fi
 116                         if (( (fsize % 2) == 0 )); then
 117                                 #make sure fsize is non-power-of-2
 118                                 (( fsize = fsize + 1 ))
 119                         fi
 120                         create_free_testing $fsize $single_blk_file
 121
 122                         # doing multiple blocks testing
 123                         avail=$(get_prop available $fs)
 124                         (( blknum = avail / blksize ))
 125                         # we just test <10 multi-blocks to limit testing time
 126                         (( blknum = blknum % 9 ))
 127                         while (( blknum < 2 )); do
 128                                 (( blknum = blknum + $RANDOM % 9 ))
 129                         done
 130                         if (( (blknum % 2) == 0 )); then
 131                                 (( blknum = blknum + 1 )) # keep blknum as odd
 132                         fi
 133                         (( fsize = blknum * blksize ))
 134                         create_free_testing $fsize $multi_blk_file
 135
 136                         (( blksize = blksize * 2 ))
 137                 done
 138         done
 139 done
 140
 141 log_pass "Creating and freeing non-power-of-2 blocksize file work as expected."