common/config

   1 ##/bin/bash
   2 #
   3 # Copyright (c) 2000-2003,2006 Silicon Graphics, Inc.  All Rights Reserved.
   4 #
   5 # This program is free software; you can redistribute it and/or
   6 # modify it under the terms of the GNU General Public License as
   7 # published by the Free Software Foundation.
   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 # You should have received a copy of the GNU General Public License
  15 # along with this program; if not, write the Free Software Foundation,
  16 # Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  17 #
  18 #
  19 # setup and check for config parameters, and in particular
  20 #
  21 # EMAIL -           email of the script runner.
  22 # TEST_DIR -        scratch test directory that is in an already
  23 #                   mounted XFS file system, needs to be be world
  24 #                   writeable
  25 # TEST_DEV -        device for file system containing TEST_DIR
  26 #
  27 # and optionally:
  28 # SCRATCH_DEV -     device you can make a scratch file system on
  29 # SCRATCH_MNT -     mount point for scratch file system
  30 # SCRATCH_LOGDEV -  scratch log device for external log testing
  31 # SCRATCH_RTDEV -   scratch rt dev
  32 # TEST_LOGDEV -     test log device for external log testing
  33 # TEST_RTDEV -      test rt dev
  34 # TAPE_DEV -        the tape device for the xfsdump tests
  35 # RMT_TAPE_DEV -    the remote tape device for the xfsdump tests
  36 # RMT_IRIXTAPE_DEV- the IRIX remote tape device for the xfsdump tests
  37 # RMT_TAPE_USER -   remote user for tape device
  38 #
  39 # - These can be added to $HOST_CONFIG_DIR (witch default to ./config)
  40 #   below or a separate local configuration file can be used (using
  41 #   the HOST_OPTIONS variable).
  42 # - This script is shared by the stress test system and the auto-qa
  43 #   system
  44 # - TEST_DEV & TEST_DIR must be assigned.
  45 # - this script shouldn't make any assertions about filesystem
  46 #   validity or mountedness.
  47 #
  48
  49 # all tests should use a common language setting to prevent golden
  50 # output mismatches.
  51 export LANG=C
  52 export LC_ALL=C
  53
  54 # Warning: don't put freeware before /usr/bsd on IRIX coz you'll
  55 #  get the wrong hostname and set your system name to -s  :)
  56 [ -d /usr/bsd ] && PATH=$PATH:/usr/bsd
  57 [ -d /usr/freeware/bin ] && PATH=$PATH:/usr/freeware/bin
  58 PATH=".:$PATH"
  59
  60 export HOST=`hostname -s`
  61 export HOSTOS=`uname -s`
  62 [ "$HOSTOS" = "IRIX64" ] && export HOSTOS="IRIX"
  63
  64 export MODULAR=0               # using XFS as a module or not
  65 export BOOT="/boot"            # install target for kernels
  66 export EXTRA=${EXTRA:=xfs-qa}
  67
  68 # general parameters (mainly for auto-qa)
  69 export SOAK_PROC=3             # -p option to fsstress
  70 export SOAK_STRESS=10000       # -n option to fsstress
  71 export SOAK_PASSES=-1          # count of repetitions of fsstress (while soaking)
  72 export EMAIL=root@localhost    # where auto-qa will send its status messages
  73 export HOST_OPTIONS=${HOST_OPTIONS:=local.config}
  74 export CHECK_OPTIONS=${CHECK_OPTIONS:="-g auto"}
  75 export BENCH_PASSES=${BENCH_PASSES:=5}
  76 export XFS_MKFS_OPTIONS=${XFS_MKFS_OPTIONS:=-bsize=4096}
  77 export TIME_FACTOR=${TIME_FACTOR:=1}
  78 export LOAD_FACTOR=${LOAD_FACTOR:=1}
  79 export DEBUGFS_MNT=${DEBUGFS_MNT:="/sys/kernel/debug"}
  80 export OVERLAY_UPPER_DIR=${OVERLAY_UPPER_DIR:="upper"}
  81 export OVERLAY_LOWER_DIR=${OVERLAY_LOWER_DIR:="lower"}
  82 export OVERLAY_WORK_DIR=${OVERLAY_WORK_DIR:="work"}
  83
  84 export PWD=`pwd`
  85 #export DEBUG=${DEBUG:=...} # arbitrary CFLAGS really.
  86 export MALLOCLIB=${MALLOCLIB:=/usr/lib/libefence.a}
  87 export LOCAL_CONFIGURE_OPTIONS=${LOCAL_CONFIGURE_OPTIONS:=--enable-readline=yes}
  88
  89 export RECREATE_TEST_DEV=false
  90
  91 # $1 = prog to look for, $2* = default pathnames if not found in $PATH
  92 set_prog_path()
  93 {
  94     p=`which $1 2> /dev/null`
  95     if [ -n "$p" -a -x "$p" ]; then
  96         echo $p
  97         return 0
  98     fi
  99     p=$1
 100
 101     shift
 102     for f; do
 103         if [ -x $f ]; then
 104             echo $f
 105             return 0
 106         fi
 107     done
 108
 109     echo ""
 110     return 1
 111 }
 112
 113 # Handle mkfs.btrfs which does (or does not) require -f to overwrite
 114 set_btrfs_mkfs_prog_path_with_opts()
 115 {
 116         p=`set_prog_path mkfs.btrfs`
 117         if [ "$p" != "" ] && grep -q 'force overwrite' $p; then
 118                 echo "$p -f"
 119         else
 120                 echo $p
 121         fi
 122 }
 123
 124 _fatal()
 125 {
 126     echo "$*"
 127     status=1
 128     exit 1
 129 }
 130
 131 export MKFS_PROG="`set_prog_path mkfs`"
 132 [ "$MKFS_PROG" = "" ] && _fatal "mkfs not found"
 133
 134 export MOUNT_PROG="`set_prog_path mount`"
 135 [ "$MOUNT_PROG" = "" ] && _fatal "mount not found"
 136
 137 export UMOUNT_PROG="`set_prog_path umount`"
 138 [ "$UMOUNT_PROG" = "" ] && _fatal "umount not found"
 139
 140 export FSSTRESS_PROG="./ltp/fsstress"
 141 [ ! -x $FSSTRESS_PROG ] && _fatal "fsstress not found or executable"
 142
 143 export PERL_PROG="`set_prog_path perl`"
 144 [ "$PERL_PROG" = "" ] && _fatal "perl not found"
 145
 146 export AWK_PROG="`set_prog_path awk`"
 147 [ "$AWK_PROG" = "" ] && _fatal "awk not found"
 148
 149 export SED_PROG="`set_prog_path sed`"
 150 [ "$SED_PROG" = "" ] && _fatal "sed not found"
 151
 152 export BC_PROG="`set_prog_path bc`"
 153 [ "$BC_PROG" = "" ] && _fatal "bc not found"
 154
 155 export PS_ALL_FLAGS="-ef"
 156
 157 export DF_PROG="`set_prog_path df`"
 158 [ "$DF_PROG" = "" ] && _fatal "df not found"
 159 [ "$HOSTOS" = "Linux" ] && export DF_PROG="$DF_PROG -T -P"
 160
 161 export XFS_IO_PROG="`set_prog_path xfs_io`"
 162 [ "$XFS_IO_PROG" = "" ] && _fatal "xfs_io not found"
 163
 164 export XFS_LOGPRINT_PROG="`set_prog_path xfs_logprint`"
 165 export XFS_REPAIR_PROG="`set_prog_path xfs_repair`"
 166 export XFS_DB_PROG="`set_prog_path xfs_db`"
 167 export XFS_GROWFS_PROG=`set_prog_path xfs_growfs`
 168 export XFS_SCRUB_PROG="`set_prog_path xfs_scrub`"
 169 export XFS_PARALLEL_REPAIR_PROG="`set_prog_path xfs_prepair`"
 170 export XFS_PARALLEL_REPAIR64_PROG="`set_prog_path xfs_prepair64`"
 171 export __XFSDUMP_PROG="`set_prog_path xfsdump`"
 172 if [ -n "$__XFSDUMP_PROG" ]; then
 173         export XFSDUMP_PROG="$__XFSDUMP_PROG -e"
 174 else
 175         export XFSDUMP_PROG=""
 176 fi
 177 export XFSRESTORE_PROG="`set_prog_path xfsrestore`"
 178 export XFSINVUTIL_PROG="`set_prog_path xfsinvutil`"
 179 export GETFATTR_PROG="`set_prog_path getfattr`"
 180 export SETFATTR_PROG="`set_prog_path setfattr`"
 181 export CHACL_PROG="`set_prog_path chacl`"
 182 export ATTR_PROG="`set_prog_path attr`"
 183 export QUOTA_PROG="`set_prog_path quota`"
 184 export XFS_QUOTA_PROG="`set_prog_path xfs_quota`"
 185 export KILLALL_PROG="`set_prog_path killall`"
 186 export INDENT_PROG="`set_prog_path indent`"
 187 export XFS_COPY_PROG="`set_prog_path xfs_copy`"
 188 export FSTRIM_PROG="`set_prog_path fstrim`"
 189 export DUMPE2FS_PROG="`set_prog_path dumpe2fs`"
 190 export FIO_PROG="`set_prog_path fio`"
 191 export FILEFRAG_PROG="`set_prog_path filefrag`"
 192 export E4DEFRAG_PROG="`set_prog_path e4defrag`"
 193 export LOGGER_PROG="`set_prog_path logger`"
 194 export DBENCH_PROG="`set_prog_path dbench`"
 195 export DMSETUP_PROG="`set_prog_path dmsetup`"
 196 export WIPEFS_PROG="`set_prog_path wipefs`"
 197 export DUMP_PROG="`set_prog_path dump`"
 198 export RESTORE_PROG="`set_prog_path restore`"
 199 export LVM_PROG="`set_prog_path lvm`"
 200 export CHATTR_PROG="`set_prog_path chattr`"
 201 export DEBUGFS_PROG="`set_prog_path debugfs`"
 202 export UUIDGEN_PROG="`set_prog_path uuidgen`"
 203 export GETRICHACL_PROG="`set_prog_path getrichacl`"
 204 export SETRICHACL_PROG="`set_prog_path setrichacl`"
 205 export KEYCTL_PROG="`set_prog_path keyctl`"
 206 export XZ_PROG="`set_prog_path xz`"
 207 export FLOCK_PROG="`set_prog_path flock`"
 208 export LDD_PROG="`set_prog_path ldd`"
 209 export TIMEOUT_PROG="`set_prog_path timeout`"
 210
 211 # use 'udevadm settle' or 'udevsettle' to wait for lv to be settled.
 212 # newer systems have udevadm command but older systems like RHEL5 don't.
 213 # But if neither one is available, just set it to "sleep 1" to wait for lv to
 214 # be settled
 215 UDEV_SETTLE_PROG="`set_prog_path udevadm`"
 216 if [ "$UDEV_SETTLE_PROG" == "" ]; then
 217         # try udevsettle command
 218         UDEV_SETTLE_PROG="`set_prog_path udevsettle`"
 219 else
 220         # udevadm is available, add 'settle' as subcommand
 221         UDEV_SETTLE_PROG="$UDEV_SETTLE_PROG settle"
 222 fi
 223 # neither command is available, use sleep 1
 224 if [ "$UDEV_SETTLE_PROG" == "" ]; then
 225         UDEV_SETTLE_PROG="sleep 1"
 226 fi
 227 export UDEV_SETTLE_PROG
 228
 229 case "$HOSTOS" in
 230     IRIX*)
 231         export MKFS_XFS_PROG="`set_prog_path mkfs_xfs`"
 232         export MKFS_UDF_PROG="`set_prog_path mkfs_udf`"
 233         export XFS_FSR_PROG="`set_prog_path /usr/etc/fsr_xfs`"
 234         export MKFS_NFS_PROG="false"
 235         export MKFS_CIFS_PROG="false"
 236         ;;
 237     Linux)
 238         export MKFS_XFS_PROG="`set_prog_path mkfs.xfs`"
 239         export MKFS_EXT4_PROG="`set_prog_path mkfs.ext4`"
 240         export MKFS_UDF_PROG="`set_prog_path mkudffs`"
 241         export MKFS_BTRFS_PROG="`set_btrfs_mkfs_prog_path_with_opts`"
 242         export MKFS_F2FS_PROG="`set_prog_path mkfs.f2fs`"
 243         export DUMP_F2FS_PROG="`set_prog_path dump.f2fs`"
 244         export BTRFS_UTIL_PROG="`set_prog_path btrfs`"
 245         export BTRFS_SHOW_SUPER_PROG="`set_prog_path btrfs-show-super`"
 246         export BTRFS_CONVERT_PROG="`set_prog_path btrfs-convert`"
 247         export XFS_FSR_PROG="`set_prog_path xfs_fsr`"
 248         export MKFS_NFS_PROG="false"
 249         export MKFS_CIFS_PROG="false"
 250         export MKFS_OVERLAY_PROG="false"
 251         export MKFS_REISER4_PROG="`set_prog_path mkfs.reiser4`"
 252         export E2FSCK_PROG="`set_prog_path e2fsck`"
 253         export TUNE2FS_PROG="`set_prog_path tune2fs`"
 254         ;;
 255 esac
 256
 257 # SELinux adds extra xattrs which can mess up our expected output.
 258 # So, mount with a context, and they won't be created
 259 # # nfs_t is a "liberal" context so we can use it.
 260 if [ -x /usr/sbin/selinuxenabled ] && /usr/sbin/selinuxenabled; then
 261         SELINUX_MOUNT_OPTIONS="-o context=system_u:object_r:nfs_t:s0"
 262         export SELINUX_MOUNT_OPTIONS
 263 fi
 264
 265 # check if mkfs.xfs supports v5 xfs
 266 XFS_MKFS_HAS_NO_META_SUPPORT=""
 267 touch /tmp/crc_check.img
 268 $MKFS_XFS_PROG -N -d file,name=/tmp/crc_check.img,size=32m -m crc=0 \
 269         >/dev/null 2>&1;
 270 if [ $? -ne 0 ]; then
 271         XFS_MKFS_HAS_NO_META_SUPPORT=true
 272 fi
 273 rm -f /tmp/crc_check.img
 274 export XFS_MKFS_HAS_NO_META_SUPPORT
 275
 276 # new doesn't need config file parsed, we can stop here
 277 if [ "$iam" == "new" ]; then
 278         return 0
 279 fi
 280
 281 _mount_opts()
 282 {
 283         case $FSTYP in
 284         xfs)
 285                 export MOUNT_OPTIONS=$XFS_MOUNT_OPTIONS
 286                 ;;
 287         udf)
 288                 export MOUNT_OPTIONS=$UDF_MOUNT_OPTIONS
 289                 ;;
 290         nfs)
 291                 export MOUNT_OPTIONS=$NFS_MOUNT_OPTIONS
 292                 ;;
 293         cifs)
 294                 export MOUNT_OPTIONS=$CIFS_MOUNT_OPTIONS
 295                 ;;
 296         ceph)
 297                 export MOUNT_OPTIONS=$CEPHFS_MOUNT_OPTIONS
 298                 ;;
 299         overlay)
 300                 export MOUNT_OPTIONS=$OVERLAY_MOUNT_OPTIONS
 301                 ;;
 302         ext2|ext3|ext4|ext4dev)
 303                 # acls & xattrs aren't turned on by default on ext$FOO
 304                 export MOUNT_OPTIONS="-o acl,user_xattr $EXT_MOUNT_OPTIONS"
 305                 ;;
 306         f2fs)
 307                 export MOUNT_OPTIONS="-o acl,user_xattr $F2FS_MOUNT_OPTIONS"
 308                 ;;
 309         reiserfs)
 310                 # acls & xattrs aren't turned on by default on reiserfs
 311                 export MOUNT_OPTIONS="-o acl,user_xattr $REISERFS_MOUNT_OPTIONS"
 312                 ;;
 313        reiser4)
 314                # acls & xattrs aren't supported by reiser4
 315                export MOUNT_OPTIONS=$REISER4_MOUNT_OPTIONS
 316                ;;
 317         gfs2)
 318                 # acls aren't turned on by default on gfs2
 319                 export MOUNT_OPTIONS="-o acl $GFS2_MOUNT_OPTIONS"
 320                 ;;
 321         tmpfs)
 322                 # We need to specify the size at mount, use 1G by default
 323                 export MOUNT_OPTIONS="-o size=1G $TMPFS_MOUNT_OPTIONS"
 324                 ;;
 325         *)
 326                 ;;
 327         esac
 328 }
 329
 330 _test_mount_opts()
 331 {
 332         case $FSTYP in
 333         cifs)
 334                 export TEST_FS_MOUNT_OPTS=$CIFS_MOUNT_OPTIONS
 335                 ;;
 336         ceph)
 337                 export TEST_FS_MOUNT_OPTS=$CEPHFS_MOUNT_OPTIONS
 338                 ;;
 339         *)
 340                 ;;
 341         esac
 342 }
 343
 344 _mkfs_opts()
 345 {
 346         case $FSTYP in
 347         xfs)
 348                 export MKFS_OPTIONS=$XFS_MKFS_OPTIONS
 349                 ;;
 350         udf)
 351                 [ ! -z "$udf_fsize" ] && \
 352                         UDF_MKFS_OPTIONS="$UDF_MKFS_OPTIONS -s $udf_fsize"
 353                 export MKFS_OPTIONS=$UDF_MKFS_OPTIONS
 354                 ;;
 355         nfs)
 356                 export MKFS_OPTIONS=$NFS_MKFS_OPTIONS
 357                 ;;
 358         cifs)
 359                 export MKFS_OPTIONS=$CIFS_MKFS_OPTIONS
 360                 ;;
 361         ceph)
 362                 export MKFS_OPTIONS=$CEPHFS_MKFS_OPTIONS
 363                 ;;
 364         reiserfs)
 365                 export MKFS_OPTIONS="$REISERFS_MKFS_OPTIONS -q"
 366                 ;;
 367        reiser4)
 368                 export MKFS_OPTIONS=$REISER4_MKFS_OPTIONS
 369                 ;;
 370         gfs2)
 371                 export MKFS_OPTIONS="$GFS2_MKFS_OPTIONS -O -p lock_nolock"
 372                 ;;
 373         jfs)
 374                 export MKFS_OPTIONS="$JFS_MKFS_OPTIONS -q"
 375                 ;;
 376         f2fs)
 377                 export MKFS_OPTIONS="$F2FS_MKFS_OPTIONS"
 378                 ;;
 379         *)
 380                 ;;
 381         esac
 382 }
 383
 384 _fsck_opts()
 385 {
 386         case $FSTYP in
 387         ext2|ext3|ext4|ext4dev)
 388                 export FSCK_OPTIONS="-nf"
 389                 ;;
 390         reiser*)
 391                 export FSCK_OPTIONS="--yes"
 392                 ;;
 393         f2fs)
 394                 export FSCK_OPTIONS=""
 395                 ;;
 396         *)
 397                 export FSCK_OPTIONS="-n"
 398                 ;;
 399         esac
 400 }
 401
 402 known_hosts()
 403 {
 404         [ "$HOST_CONFIG_DIR" ] || HOST_CONFIG_DIR=`pwd`/configs
 405
 406         [ -f /etc/xfsqa.config ]             && export HOST_OPTIONS=/etc/xfsqa.config
 407         [ -f $HOST_CONFIG_DIR/$HOST ]        && export HOST_OPTIONS=$HOST_CONFIG_DIR/$HOST
 408         [ -f $HOST_CONFIG_DIR/$HOST.config ] && export HOST_OPTIONS=$HOST_CONFIG_DIR/$HOST.config
 409 }
 410
 411 # Returns a list of sections in config file
 412 # Each section starts with the section name in the format
 413 # [section_name1]. Only alphanumeric characters and '_' is allowed
 414 # in the section name otherwise the section will not be resognised.
 415 # Section name must be contained between square brackets.
 416 get_config_sections() {
 417         sed -n -e "s/^\[\([[:alnum:]_]*\)\]/\1/p" < $1
 418 }
 419
 420 if [ ! -f "$HOST_OPTIONS" ]; then
 421         known_hosts
 422 fi
 423
 424 export HOST_OPTIONS_SECTIONS="-no-sections-"
 425 export OPTIONS_HAVE_SECTIONS=false
 426 if [ -f "$HOST_OPTIONS" ]; then
 427         export HOST_OPTIONS_SECTIONS=`get_config_sections $HOST_OPTIONS`
 428         if [ -z "$HOST_OPTIONS_SECTIONS" ]; then
 429                 . $HOST_OPTIONS
 430                 export HOST_OPTIONS_SECTIONS="-no-sections-"
 431         else
 432                 export OPTIONS_HAVE_SECTIONS=true
 433         fi
 434 fi
 435
 436 _check_device()
 437 {
 438         local name=$1
 439         local dev_needed=$2
 440         local dev=$3
 441
 442         if [ -z "$dev" ]; then
 443                 if [ "$dev_needed" == "required" ]; then
 444                         _fatal "common/config: $name is required but not defined!"
 445                 fi
 446                 return
 447         fi
 448
 449         echo $dev | grep -qE ":|//" > /dev/null 2>&1
 450         network_dev=$?
 451         if [ "$FSTYP" == "overlay" ]; then
 452                 if [ ! -d "$dev" ]; then
 453                         _fatal "common/config: $name ($dev) is not a directory for overlay"
 454                 fi
 455         elif [ ! -b "$dev" -a "$network_dev" != "0" ]; then
 456                 _fatal "common/config: $name ($dev) is not a block device or a network filesystem"
 457         fi
 458 }
 459
 460 # check and return a canonical mount point path
 461 _canonicalize_mountpoint()
 462 {
 463         local name=$1
 464         local dir=$2
 465
 466         if [ ! -d "$dir" ]; then
 467                 _fatal "common/config: $name ($dir) is not a directory"
 468         fi
 469
 470         # this follows symlinks and removes all trailing "/"s
 471         readlink -e "$dir"
 472 }
 473
 474 # Parse config section options. This function will parse all the configuration
 475 # within a single section which name is passed as an argument. For section
 476 # name format see comments in get_config_sections().
 477 # Empty lines and everything after '#' will be ignored.
 478 # Configuration options should be defined in the format
 479 #
 480 # CONFIG_OPTION=value
 481 #
 482 # This 'CONFIG_OPTION' variable and will be exported as an environment variable.
 483 parse_config_section() {
 484         SECTION=$1
 485         if ! $OPTIONS_HAVE_SECTIONS; then
 486                 return 0
 487         fi
 488         eval `sed -e 's/[[:space:]]*\=[[:space:]]*/=/g' \
 489                 -e 's/#.*$//' \
 490                 -e 's/[[:space:]]*$//' \
 491                 -e 's/^[[:space:]]*//' \
 492                 -e "s/^\([^=]*\)=\"\?'\?\([^\"']*\)\"\?'\?$/export \1=\"\2\"/" \
 493                 < $HOST_OPTIONS \
 494                 | sed -n -e "/^\[$SECTION\]/,/^\s*\[/{/^[^#].*\=.*/p;}"`
 495 }
 496
 497 get_next_config() {
 498         if [ ! -z "$CONFIG_INCLUDED" ] && ! $OPTIONS_HAVE_SECTIONS; then
 499                 return 0
 500         fi
 501
 502         local OLD_FSTYP=$FSTYP
 503         local OLD_MOUNT_OPTIONS=$MOUNT_OPTIONS
 504         local OLD_TEST_FS_MOUNT_OPTS=$TEST_FS_MOUNT_OPTS
 505         local OLD_MKFS_OPTIONS=$MKFS_OPTIONS
 506         local OLD_FSCK_OPTIONS=$FSCK_OPTIONS
 507         local OLD_USE_EXTERNAL=$USE_EXTERNAL
 508
 509         unset MOUNT_OPTIONS
 510         unset MKFS_OPTIONS
 511         unset FSCK_OPTIONS
 512         unset USE_EXTERNAL
 513
 514         # We might have deduced SCRATCH_DEV from the SCRATCH_DEV_POOL in the previous
 515         # run, so we have to unset it now.
 516         if [ "$SCRATCH_DEV_NOT_SET" == "true" ]; then
 517                 unset SCRATCH_DEV
 518         fi
 519
 520         parse_config_section $1
 521
 522         if [ ! -z "$OLD_FSTYP" ] && [ $OLD_FSTYP != $FSTYP ]; then
 523                 [ -z "$MOUNT_OPTIONS" ] && _mount_opts
 524                 [ -z "$TEST_FS_MOUNT_OPTS" ] && _test_mount_opts
 525                 [ -z "$MKFS_OPTIONS" ] && _mkfs_opts
 526                 [ -z "$FSCK_OPTIONS" ] && _fsck_opts
 527
 528                 # clear the external devices if we are not using them
 529                 if [ -z "$USE_EXTERNAL" ]; then
 530                         unset TEST_RTDEV
 531                         unset TEST_LOGDEV
 532                         unset SCRATCH_RTDEV
 533                         unset SCRATCH_LOGDEV
 534                 fi
 535         else
 536                 [ -z "$MOUNT_OPTIONS" ] && export MOUNT_OPTIONS=$OLD_MOUNT_OPTIONS
 537                 [ -z "$TEST_FS_MOUNT_OPTS" ] && export TEST_FS_MOUNT_OPTS=$OLD_TEST_FS_MOUNT_OPTS
 538                 [ -z "$MKFS_OPTIONS" ] && export MKFS_OPTIONS=$OLD_MKFS_OPTIONS
 539                 [ -z "$FSCK_OPTIONS" ] && export FSCK_OPTIONS=$OLD_FSCK_OPTIONS
 540                 [ -z "$USE_EXTERNAL" ] && export USE_EXTERNAL=$OLD_USE_EXTERNAL
 541         fi
 542
 543         # set default RESULT_BASE
 544         if [ -z "$RESULT_BASE" ]; then
 545                 export RESULT_BASE="$here/results/"
 546         fi
 547
 548         #  Mandatory Config values.
 549         MC=""
 550         [ -z "$EMAIL" ]          && MC="$MC EMAIL"
 551         [ -z "$TEST_DIR" ]       && MC="$MC TEST_DIR"
 552         [ -z "$TEST_DEV" ]       && MC="$MC TEST_DEV"
 553
 554         if [ -n "$MC" ]; then
 555                 echo "Warning: need to define parameters for host $HOST"
 556                 echo "       or set variables:"
 557                 echo "       $MC"
 558                 exit 1
 559         fi
 560
 561         _check_device TEST_DEV required $TEST_DEV
 562         export TEST_DIR=`_canonicalize_mountpoint TEST_DIR $TEST_DIR`
 563
 564         # a btrfs tester will set only SCRATCH_DEV_POOL, we will put first of its dev
 565         # to SCRATCH_DEV and rest to SCRATCH_DEV_POOL to maintain the backward compatibility
 566         if [ ! -z "$SCRATCH_DEV_POOL" ]; then
 567                 if [ ! -z "$SCRATCH_DEV" ]; then
 568                         echo "common/config: Error: \$SCRATCH_DEV ($SCRATCH_DEV) should be unset when \$SCRATCH_DEV_POOL ($SCRATCH_DEV_POOL) is set"
 569                         exit 1
 570                 fi
 571                 SCRATCH_DEV=`echo $SCRATCH_DEV_POOL | awk '{print $1}'`
 572                 export SCRATCH_DEV
 573                 export SCRATCH_DEV_NOT_SET=true
 574         fi
 575
 576         _check_device SCRATCH_DEV optional $SCRATCH_DEV
 577         export SCRATCH_MNT=`_canonicalize_mountpoint SCRATCH_MNT $SCRATCH_MNT`
 578
 579         if [ -n "$USE_EXTERNAL" ]; then
 580                 _check_device TEST_RTDEV optional $TEST_RTDEV
 581                 _check_device TEST_LOGDEV optional $TEST_LOGDEV
 582                 _check_device SCRATCH_RTDEV optional $SCRATCH_RTDEV
 583                 _check_device SCRATCH_LOGDEV optional $SCRATCH_LOGDEV
 584         fi
 585 }
 586
 587 if [ -z "$CONFIG_INCLUDED" ]; then
 588         get_next_config `echo $HOST_OPTIONS_SECTIONS | cut -f1 -d" "`
 589         export CONFIG_INCLUDED=true
 590
 591         # Autodetect fs type based on what's on $TEST_DEV unless it's been set
 592         # externally
 593         if [ -z "$FSTYP" ] && \
 594            [ "$HOSTOS" == "Linux" -o "$OSTYPE" == "linux-gnu" ] && \
 595            [ ! -z "$TEST_DEV" ]; then
 596                 FSTYP=`blkid -c /dev/null -s TYPE -o value $TEST_DEV`
 597         fi
 598         FSTYP=${FSTYP:=xfs}
 599         export FSTYP
 600         [ -z "$MOUNT_OPTIONS" ] && _mount_opts
 601         [ -z "$TEST_FS_MOUNT_OPTS" ] && _test_mount_opts
 602         [ -z "$MKFS_OPTIONS" ] && _mkfs_opts
 603         [ -z "$FSCK_OPTIONS" ] && _fsck_opts
 604 else
 605         # canonicalize the mount points
 606         # this follows symlinks and removes all trailing "/"s
 607         export TEST_DIR=`_canonicalize_mountpoint TEST_DIR $TEST_DIR`
 608         export SCRATCH_MNT=`_canonicalize_mountpoint SCRATCH_MNT $SCRATCH_MNT`
 609 fi
 610
 611 # make sure this script returns success
 612 /bin/true