]> git.ipfire.org Git - thirdparty/mdadm.git/commitdiff
mdadm/test: move some functions to new source file
authorZhilong Liu <zlliu@suse.com>
Tue, 16 Jan 2018 09:45:03 +0000 (17:45 +0800)
committerJes Sorensen <jsorensen@fb.com>
Sun, 21 Jan 2018 21:36:08 +0000 (16:36 -0500)
To make 'test' file concise, move some functions to new file
tests/func.sh, and leave core functions in 'test' file.

Signed-off-by: Zhilong Liu <zlliu@suse.com>
Signed-off-by: Jes Sorensen <jsorensen@fb.com>
test
tests/func.sh [new file with mode: 0644]

diff --git a/test b/test
index eb67ef53304afc7d2307402386b96bf70d25da65..6175c25e2e0baff8357308ba2712b9fe2a17ce3d 100755 (executable)
--- a/test
+++ b/test
@@ -1,8 +1,10 @@
 #!/bin/bash
 #
 # run test suite for mdadm
-dir=$(pwd)
-mdadm=$dir/mdadm
+
+. tests/func.sh
+
+mdadm=$PWD/mdadm
 testdir="tests"
 targetdir="/var/tmp"
 logdir="$targetdir"
@@ -27,184 +29,16 @@ md2=/dev/md2
 mdp0=/dev/md_d0
 mdp1=/dev/md_d1
 
-# We test mdadm on loop-back block devices.
-# dir for storing files should be settable by command line maybe
-size=20000
-# super0, round down to multiple of 64 and substract 64
-mdsize0=19904
-# super00 is nested, subtract 128
-mdsize00=19840
-# super1.0 round down to multiple of 2, subtract 8
-mdsize1=19992
-mdsize1a=19988
-mdsize12=19988
-# super1.2 for linear: round to multiple of 2, subtract 4
-mdsize1_l=19996
-mdsize2_l=19996
-# subtract another 4 for bitmaps
-mdsize1b=19988
-mdsize11=19992
-mdsize11a=19456
-mdsize12=19988
-
-# ddf needs bigger devices as 32Meg is reserved!
-ddfsize=65536
-
-# $1 is optional parameter, it shows why to save log
-save_log() {
-       status=$1
-       logfile="$status""$_basename".log
-
-       cat $targetdir/stderr >> $targetdir/log
-       cp $targetdir/log $logdir/$_basename.log
-       echo "## $HOSTNAME: saving dmesg." >> $logdir/$logfile
-       dmesg -c >> $logdir/$logfile
-       echo "## $HOSTNAME: saving proc mdstat." >> $logdir/$logfile
-       cat /proc/mdstat >> $logdir/$logfile
-       array=($(mdadm -Ds | cut -d' ' -f2))
-       [ "$1" == "fail" ] &&
-               echo "FAILED - see $logdir/$_basename.log and $logdir/$logfile for details"
-       if [ $DEVTYPE == 'lvm' ]
-       then
-               # not supported lvm type yet
-               echo
-       elif [ "$DEVTYPE" == 'loop' -o "$DEVTYPE" == 'disk' ]
-       then
-               if [ ! -z "$array" -a ${#array[@]} -ge 1 ]
-               then
-                       echo "## $HOSTNAME: mdadm -D ${array[@]}" >> $logdir/$logfile
-                       $mdadm -D ${array[@]} >> $logdir/$logfile
-                       # ignore saving external(external file, imsm...) bitmap
-                       cat /proc/mdstat | grep -q "linear\|external" && return 0
-                       md_disks=($($mdadm -D -Y ${array[@]} | grep "/dev/" | cut -d'=' -f2))
-                       cat /proc/mdstat | grep -q "bitmap"
-                       if [ $? -eq 0 ]
-                       then
-                               echo "## $HOSTNAME: mdadm -X ${md_disks[@]}" >> $logdir/$logfile
-                               $mdadm -X ${md_disks[@]} >> $logdir/$logfile
-                       fi
-               else
-                       echo "## $HOSTNAME: no array assembled!" >> $logdir/$logfile
-               fi
-       fi
-}
-
 die() {
        echo -e "\n\tERROR: $* \n"
        save_log fail
        exit 2
 }
 
-cleanup() {
-       udevadm settle
-       $mdadm -Ssq 2> /dev/null
-       case $DEVTYPE in
-       loop )
-               for d in 0 1 2 3 4 5 6 7  8 9 10 11 12 13
-               do
-                       losetup -d /dev/loop$d
-                       rm -f /dev/disk/by-path/loop*
-                       rm -f /var/tmp/mdtest$d
-               done
-               ;;
-       lvm )
-               for d in 0 1 2 3 4 5 6 7  8 9 10 11 12 13
-               do
-                       eval "lvremove --quiet -f \$dev$d"
-               done
-               ;;
-       disk )
-               $mdadm --zero ${disks[@]} &> /dev/null
-               ;;
-       esac
-}
-
 ctrl_c() {
        exitonerror=1
 }
 
-do_setup() {
-       trap cleanup 0 1 3 15
-       trap ctrl_c 2
-
-       [ -d $logdir ] || mkdir -p $logdir
-       dmesg -c > /dev/null
-
-       devlist=
-       if [ "$DEVTYPE" == "loop" ]
-       then
-               # make sure there are no loop devices remaining.
-               # udev started things can sometimes prevent them being stopped
-               # immediately
-               while grep loop /proc/partitions > /dev/null 2>&1
-               do
-                       $mdadm -Ssq
-                       losetup -d /dev/loop[0-9]* 2> /dev/null
-                       sleep 0.2
-               done
-       elif [ "$DEVTYPE" == "disk" ]
-       then
-               if [ ! -z "$disks" ]
-               then
-                       for d in $(seq 0 ${#disks[@]})
-                       do
-                               eval "dev$d=${disks[$d]}"
-                               eval devlist=\"\$devlist \$dev$d\"
-                               eval devlist$d=\"\$devlist\"
-                       done
-                       $mdadm --zero ${disks[@]} &> /dev/null
-               else
-                       echo "Forget to provide physical devices for disk mode."
-                       exit 1
-               fi
-       fi
-       for d in 0 1 2 3 4 5 6 7 8 9 10 11 12 13
-       do
-               sz=$size
-               [ $d -gt 7 ] && sz=$ddfsize
-               case $DEVTYPE in
-               loop)
-                       [ -f $targetdir/mdtest$d ] ||
-                               dd if=/dev/zero of=$targetdir/mdtest$d count=$sz bs=1K > /dev/null 2>&1
-                       # make sure udev doesn't touch
-                       mdadm --zero $targetdir/mdtest$d 2> /dev/null
-                       [ -b /dev/loop$d ] || mknod /dev/loop$d b 7 $d
-                       if [ $d -eq 7 ]
-                       then
-                               losetup /dev/loop$d $targetdir/mdtest6 # for multipath use
-                       else
-                               losetup /dev/loop$d $targetdir/mdtest$d
-                       fi
-                       eval dev$d=/dev/loop$d
-                       eval file$d=$targetdir/mdtest$d
-                       ;;
-               lvm)
-                       unset MULTIPATH
-                       eval dev$d=/dev/mapper/${LVM_VOLGROUP}-mdtest$d
-                       if ! lvcreate --quiet -L ${sz}K -n mdtest$d $LVM_VOLGROUP
-                       then
-                               trap '' 0 # make sure lvremove is not called
-                               eval echo error creating \$dev$d
-                               exit 129
-                       fi
-                       ;;
-               ram)
-                       unset MULTIPATH
-                       eval dev$d=/dev/ram$d
-                       ;;
-               esac
-               eval devlist=\"\$devlist \$dev$d\"
-               eval devlist$d=\"\$devlist\"
-               #" <-- add this quote to un-confuse vim syntax highlighting
-       done
-       path0=$dev6
-       path1=$dev7
-       ulimit -c unlimited
-       [ -f /proc/mdstat ] || modprobe md_mod
-       echo 2000 > /proc/sys/dev/raid/speed_limit_max
-       echo 0 > /sys/module/md_mod/parameters/start_ro
-}
-
 # mdadm always adds --quiet, and we want to see any unexpected messages
 mdadm() {
        rm -f $targetdir/stderr
@@ -244,137 +78,6 @@ mdadm() {
        return $rv
 }
 
-# check various things
-check() {
-       case $1 in
-       spares )
-               spares=$(tr '] ' '\012\012' < /proc/mdstat | grep -c '(S)' || exit 0)
-               [ $spares -ne $2 ] &&
-                       die "expected $2 spares, found $spares"
-               ;;
-       raid* | linear )
-               grep -sq "active $1 " /proc/mdstat ||
-                       die "active $1 not found"
-               ;;
-       algorithm )
-               grep -sq " algorithm $2 " /proc/mdstat ||
-                       die "algorithm $2 not found"
-               ;;
-       resync | recovery | reshape )
-               cnt=5
-               while ! grep -sq $1 /proc/mdstat
-               do
-                       if [ $cnt -gt 0 ] && grep -v idle /sys/block/md*/md/sync_action > /dev/null
-                       then # Something isn't idle - wait a bit
-                               sleep 0.5
-                               cnt=$[cnt-1]
-                       else
-                               die "no $1 happening"
-                       fi
-               done
-               ;;
-       nosync )
-               sleep 0.5
-               # Since 4.2 we delay the close of recovery until there has been a chance for
-               # spares to be activated.  That means that a recovery that finds nothing
-               # to do can still take a little longer than expected.
-               # add an extra check: is sync_completed shows the end is reached, assume
-               # there is no recovery.
-               if grep -sq -E '(resync|recovery|reshape) *=' /proc/mdstat
-               then
-                       incomplete=`grep / /sys/block/md*/md/sync_completed 2> /dev/null | sed '/^ *\([0-9]*\) \/ \1/d'`
-                       [ -n "$incomplete" ] &&
-                               die "resync or recovery is happening!"
-               fi
-               ;;
-       wait )
-               p=`cat /proc/sys/dev/raid/speed_limit_max`
-               echo 2000000 > /proc/sys/dev/raid/speed_limit_max
-               sleep 0.1
-               while grep -Eq '(resync|recovery|reshape|check|repair) *=' /proc/mdstat ||
-                       grep -v idle > /dev/null /sys/block/md*/md/sync_action
-               do
-                       sleep 0.5
-               done
-               echo $p > /proc/sys/dev/raid/speed_limit_max
-               ;;
-       state )
-               grep -sq "blocks.*\[$2\]\$" /proc/mdstat ||
-                       die "state $2 not found!"
-               sleep 0.5
-               ;;
-       bitmap )
-               grep -sq bitmap /proc/mdstat ||
-                       die "no bitmap"
-               ;;
-       nobitmap )
-               grep -sq "bitmap" /proc/mdstat &&
-                       die "bitmap present"
-               ;;
-       readonly )
-               grep -sq "read-only" /proc/mdstat ||
-                       die "array is not read-only!"
-               ;;
-       inactive )
-               grep -sq "inactive" /proc/mdstat ||
-                       die "array is not inactive!"
-               ;;
-       # It only can be used when there is only one raid
-       chunk )
-               chunk_size=`awk -F',' '/chunk/{print $2}' /proc/mdstat | awk -F'[a-z]' '{print $1}'`
-               if [ "$chunk_size" -ne "$2" ] ; then
-                       die "chunksize should be $2, but it's $chunk_size"
-               fi
-               ;;
-       * )
-               die "unknown check $1"
-               ;;
-       esac
-}
-
-no_errors() {
-       if [ -s $targetdir/stderr ]
-       then
-               echo Bad errors from mdadm:
-               cat $targetdir/stderr
-               exit 2
-       fi
-}
-
-# basic device test
-testdev() {
-       [ -b $1 ] || die "$1 isn't a block device."
-       [ "$DEVTYPE" == "disk" ] && return 0
-       udevadm settle
-       dev=$1
-       cnt=$2
-       dvsize=$3
-       chunk=$4
-       if [ -z "$5" ]
-       then
-               mkfs.ext3 -F -j $dev > /dev/null 2>&1 && fsck -fn $dev >&2
-       fi
-       dsize=$[dvsize/chunk]
-       dsize=$[dsize*chunk]
-       rasize=$[dsize*2*cnt]
-       # rasize is in sectors
-       if [ -n "$DEV_ROUND_K" ]
-       then
-               rasize=$[rasize/DEV_ROUND_K/2]
-               rasize=$[rasize*DEV_ROUND_K*2]
-       fi
-       [ `/sbin/blockdev --getsize $dev` -eq 0 ] && sleep 2
-       _sz=`/sbin/blockdev --getsize $dev`
-       [ $rasize -lt $_sz -o $[rasize*4/5] -gt $_sz ] &&
-               die "size is wrong for $dev: $cnt * $dvsize (chunk=$chunk) = $rasize, not $_sz"
-       return 0
-}
-
-rotest() {
-       dev=$1
-       fsck -fn $dev >&2
-}
-
 do_test() {
        _script=$1
        _basename=`basename $_script`
@@ -532,55 +235,7 @@ parse_args() {
        done
 }
 
-check_env() {
-       user=$(id -un)
-       [ "X$user" != "Xroot" ] && {
-               echo "test: testing can only be done as 'root'."
-               exit 1
-       }
-       [ -x "raid6check" -a -x $mdadm ] || {
-               echo "test: please run 'make everything' before perform testing."
-               exit 1
-       }
-       cmds=(mdadm lsblk df udevadm losetup mkfs.ext3 fsck seq)
-       for cmd in ${cmds[@]}
-       do
-               which $cmd > /dev/null || {
-                       echo "$cmd command not found!"
-                       exit 1
-               }
-       done
-       mdadm_src_ver="$($mdadm -V 2>&1)"
-       mdadm_sbin_ver="$($(which mdadm) -V 2>&1)"
-       if [ "$mdadm_src_ver" != "$mdadm_sbin_ver" ]
-       then
-               # it's nessesary to 'make install' mdadm to /SBIN/DIR,
-               # such as systemd/mdadm-grow-continue@.service, would
-               # run as an instance by systemd when reshape happens,
-               # thus ensure that the correct mdadm is in testing.
-               echo "test: please run 'make install' before testing."
-               exit 1
-       fi
-       if ! $(df -T . | grep -iq ext)
-       then
-               # 'external file' bitmap only supports with ext[2-4] file system
-               echo "test: please run test suite with ext[2-4] file system."
-               exit 1
-       fi
-       if $(lsblk -a | grep -iq raid)
-       then
-               # donot run mdadm -Ss directly if there are RAIDs working.
-               echo "test: please run test suite without running RAIDs environment."
-               exit 1
-       fi
-       # Check whether to run multipath tests
-       modprobe multipath 2> /dev/null
-       grep -sq 'Personalities : .*multipath' /proc/mdstat &&
-               MULTIPATH="yes"
-}
-
 main() {
-       check_env
        do_setup
 
        echo "Testing on linux-$(uname -r) kernel"
diff --git a/tests/func.sh b/tests/func.sh
new file mode 100644 (file)
index 0000000..40c6026
--- /dev/null
@@ -0,0 +1,348 @@
+#!/bin/bash
+
+# We test mdadm on loop-back block devices.
+# dir for storing files should be settable by command line maybe
+size=20000
+# super0, round down to multiple of 64 and substract 64
+mdsize0=19904
+# super00 is nested, subtract 128
+mdsize00=19840
+# super1.0 round down to multiple of 2, subtract 8
+mdsize1=19992
+mdsize1a=19988
+mdsize12=19988
+# super1.2 for linear: round to multiple of 2, subtract 4
+mdsize1_l=19996
+mdsize2_l=19996
+# subtract another 4 for bitmaps
+mdsize1b=19988
+mdsize11=19992
+mdsize11a=19456
+mdsize12=19988
+
+# ddf needs bigger devices as 32Meg is reserved!
+ddfsize=65536
+
+# $1 is optional parameter, it shows why to save log
+save_log() {
+       status=$1
+       logfile="$status""$_basename".log
+
+       cat $targetdir/stderr >> $targetdir/log
+       cp $targetdir/log $logdir/$_basename.log
+       echo "## $HOSTNAME: saving dmesg." >> $logdir/$logfile
+       dmesg -c >> $logdir/$logfile
+       echo "## $HOSTNAME: saving proc mdstat." >> $logdir/$logfile
+       cat /proc/mdstat >> $logdir/$logfile
+       array=($(mdadm -Ds | cut -d' ' -f2))
+       [ "$1" == "fail" ] &&
+               echo "FAILED - see $logdir/$_basename.log and $logdir/$logfile for details"
+       if [ $DEVTYPE == 'lvm' ]
+       then
+               # not supported lvm type yet
+               echo
+       elif [ "$DEVTYPE" == 'loop' -o "$DEVTYPE" == 'disk' ]
+       then
+               if [ ! -z "$array" -a ${#array[@]} -ge 1 ]
+               then
+                       echo "## $HOSTNAME: mdadm -D ${array[@]}" >> $logdir/$logfile
+                       $mdadm -D ${array[@]} >> $logdir/$logfile
+                       # ignore saving external(external file, imsm...) bitmap
+                       cat /proc/mdstat | grep -q "linear\|external" && return 0
+                       md_disks=($($mdadm -D -Y ${array[@]} | grep "/dev/" | cut -d'=' -f2))
+                       cat /proc/mdstat | grep -q "bitmap"
+                       if [ $? -eq 0 ]
+                       then
+                               echo "## $HOSTNAME: mdadm -X ${md_disks[@]}" >> $logdir/$logfile
+                               $mdadm -X ${md_disks[@]} >> $logdir/$logfile
+                       fi
+               else
+                       echo "## $HOSTNAME: no array assembled!" >> $logdir/$logfile
+               fi
+       fi
+}
+
+cleanup() {
+       udevadm settle
+       $mdadm -Ssq 2> /dev/null
+       case $DEVTYPE in
+       loop )
+               for d in 0 1 2 3 4 5 6 7  8 9 10 11 12 13
+               do
+                       losetup -d /dev/loop$d &> /dev/null
+                       rm -f /dev/disk/by-path/loop*
+                       rm -f /var/tmp/mdtest$d
+               done
+       ;;
+       lvm )
+               for d in 0 1 2 3 4 5 6 7  8 9 10 11 12 13
+               do
+                       eval "lvremove --quiet -f \$dev$d"
+               done
+       ;;
+       disk )
+               $mdadm --zero ${disks[@]} &> /dev/null
+       ;;
+       esac
+}
+
+check_env() {
+       user=$(id -un)
+       [ "X$user" != "Xroot" ] && {
+               echo "test: testing can only be done as 'root'."
+               exit 1
+       }
+       [ -x "raid6check" -a -x $mdadm ] || {
+               echo "test: please run 'make everything' before perform testing."
+               exit 1
+       }
+       cmds=(mdadm lsblk df udevadm losetup mkfs.ext3 fsck seq)
+       for cmd in ${cmds[@]}
+       do
+               which $cmd > /dev/null || {
+                       echo "$cmd command not found!"
+                       exit 1
+               }
+       done
+       mdadm_src_ver="$($mdadm -V 2>&1)"
+       mdadm_sbin_ver="$($(which mdadm) -V 2>&1)"
+       if [ "$mdadm_src_ver" != "$mdadm_sbin_ver" ]
+       then
+               # it's nessesary to 'make install' mdadm to /SBIN/DIR,
+               # such as systemd/mdadm-grow-continue@.service, would
+               # run as an instance by systemd when reshape happens,
+               # thus ensure that the correct mdadm is in testing.
+               echo "test: please run 'make install' before testing."
+               exit 1
+       fi
+       if ! $(df -T . | grep -iq ext)
+       then
+               # 'external file' bitmap only supports with ext[2-4] file system
+               echo "test: please run test suite with ext[2-4] file system."
+               exit 1
+       fi
+       if $(lsblk -a | grep -iq raid)
+       then
+               # donot run mdadm -Ss directly if there are RAIDs working.
+               echo "test: please run test suite without running RAIDs environment."
+               exit 1
+       fi
+       # Check whether to run multipath tests
+       modprobe multipath 2> /dev/null
+       grep -sq 'Personalities : .*multipath' /proc/mdstat &&
+               MULTIPATH="yes"
+}
+
+do_setup() {
+       trap cleanup 0 1 3 15
+       trap ctrl_c 2
+
+       check_env
+       [ -d $logdir ] || mkdir -p $logdir
+       dmesg -c > /dev/null
+
+       devlist=
+       if [ "$DEVTYPE" == "loop" ]
+       then
+               # make sure there are no loop devices remaining.
+               # udev started things can sometimes prevent them being stopped
+               # immediately
+               while grep loop /proc/partitions > /dev/null 2>&1
+               do
+                       $mdadm -Ssq
+                       losetup -d /dev/loop[0-9]* 2> /dev/null
+                       sleep 0.2
+               done
+       elif [ "$DEVTYPE" == "disk" ]
+       then
+               if [ ! -z "$disks" ]
+               then
+                       for d in $(seq 0 ${#disks[@]})
+                       do
+                               eval "dev$d=${disks[$d]}"
+                               eval devlist=\"\$devlist \$dev$d\"
+                               eval devlist$d=\"\$devlist\"
+                       done
+                       $mdadm --zero ${disks[@]} &> /dev/null
+               else
+                       echo "Forget to provide physical devices for disk mode."
+                       exit 1
+               fi
+       fi
+       for d in 0 1 2 3 4 5 6 7 8 9 10 11 12 13
+       do
+               sz=$size
+               [ $d -gt 7 ] && sz=$ddfsize
+               case $DEVTYPE in
+               loop)
+                       [ -f $targetdir/mdtest$d ] ||
+                               dd if=/dev/zero of=$targetdir/mdtest$d count=$sz bs=1K > /dev/null 2>&1
+                       # make sure udev doesn't touch
+                       mdadm --zero $targetdir/mdtest$d 2> /dev/null
+                       [ -b /dev/loop$d ] || mknod /dev/loop$d b 7 $d
+                       if [ $d -eq 7 ]
+                       then
+                               losetup /dev/loop$d $targetdir/mdtest6 # for multipath use
+                       else
+                               losetup /dev/loop$d $targetdir/mdtest$d
+                       fi
+                       eval dev$d=/dev/loop$d
+                       eval file$d=$targetdir/mdtest$d
+               ;;
+               lvm)
+                       unset MULTIPATH
+                       eval dev$d=/dev/mapper/${LVM_VOLGROUP}-mdtest$d
+                       if ! lvcreate --quiet -L ${sz}K -n mdtest$d $LVM_VOLGROUP
+                       then
+                               trap '' 0 # make sure lvremove is not called
+                               eval echo error creating \$dev$d
+                               exit 129
+                       fi
+               ;;
+               ram)
+                       unset MULTIPATH
+                       eval dev$d=/dev/ram$d
+               ;;
+               esac
+               eval devlist=\"\$devlist \$dev$d\"
+               eval devlist$d=\"\$devlist\"
+               #" <-- add this quote to un-confuse vim syntax highlighting
+       done
+       path0=$dev6
+       path1=$dev7
+       ulimit -c unlimited
+       [ -f /proc/mdstat ] || modprobe md_mod
+       echo 2000 > /proc/sys/dev/raid/speed_limit_max
+       echo 0 > /sys/module/md_mod/parameters/start_ro
+}
+
+# check various things
+check() {
+       case $1 in
+       spares )
+               spares=$(tr '] ' '\012\012' < /proc/mdstat | grep -c '(S)' || exit 0)
+               [ $spares -ne $2 ] &&
+                       die "expected $2 spares, found $spares"
+       ;;
+       raid* | linear )
+               grep -sq "active $1 " /proc/mdstat ||
+                       die "active $1 not found"
+       ;;
+       algorithm )
+               grep -sq " algorithm $2 " /proc/mdstat ||
+                       die "algorithm $2 not found"
+       ;;
+       resync | recovery | reshape )
+               cnt=5
+               while ! grep -sq $1 /proc/mdstat
+               do
+                       if [ $cnt -gt 0 ] && grep -v idle /sys/block/md*/md/sync_action > /dev/null
+                       then # Something isn't idle - wait a bit
+                               sleep 0.5
+                               cnt=$[cnt-1]
+                       else
+                               die "no $1 happening"
+                       fi
+               done
+       ;;
+       nosync )
+               sleep 0.5
+               # Since 4.2 we delay the close of recovery until there has been a chance for
+               # spares to be activated.  That means that a recovery that finds nothing
+               # to do can still take a little longer than expected.
+               # add an extra check: is sync_completed shows the end is reached, assume
+               # there is no recovery.
+               if grep -sq -E '(resync|recovery|reshape) *=' /proc/mdstat
+               then
+                       incomplete=`grep / /sys/block/md*/md/sync_completed 2> /dev/null | sed '/^ *\([0-9]*\) \/ \1/d'`
+                       [ -n "$incomplete" ] &&
+                               die "resync or recovery is happening!"
+               fi
+       ;;
+       wait )
+               p=`cat /proc/sys/dev/raid/speed_limit_max`
+               echo 2000000 > /proc/sys/dev/raid/speed_limit_max
+               sleep 0.1
+               while grep -Eq '(resync|recovery|reshape|check|repair) *=' /proc/mdstat ||
+                       grep -v idle > /dev/null /sys/block/md*/md/sync_action
+               do
+                       sleep 0.5
+               done
+               echo $p > /proc/sys/dev/raid/speed_limit_max
+       ;;
+       state )
+               grep -sq "blocks.*\[$2\]\$" /proc/mdstat ||
+                       die "state $2 not found!"
+               sleep 0.5
+       ;;
+       bitmap )
+               grep -sq bitmap /proc/mdstat ||
+                       die "no bitmap"
+       ;;
+       nobitmap )
+               grep -sq "bitmap" /proc/mdstat &&
+                       die "bitmap present"
+       ;;
+       readonly )
+               grep -sq "read-only" /proc/mdstat ||
+                       die "array is not read-only!"
+       ;;
+       inactive )
+               grep -sq "inactive" /proc/mdstat ||
+                       die "array is not inactive!"
+       ;;
+       # It only can be used when there is only one raid
+       chunk )
+               chunk_size=`awk -F',' '/chunk/{print $2}' /proc/mdstat | awk -F'[a-z]' '{print $1}'`
+               if [ "$chunk_size" -ne "$2" ] ; then
+                       die "chunksize should be $2, but it's $chunk_size"
+               fi
+       ;;
+       * )
+               die "unknown check $1"
+       ;;
+       esac
+}
+
+no_errors() {
+       if [ -s $targetdir/stderr ]
+       then
+               echo Bad errors from mdadm:
+               cat $targetdir/stderr
+               exit 2
+       fi
+}
+
+# basic device test
+testdev() {
+       [ -b $1 ] || die "$1 isn't a block device."
+       [ "$DEVTYPE" == "disk" ] && return 0
+       udevadm settle
+       dev=$1
+       cnt=$2
+       dvsize=$3
+       chunk=$4
+       if [ -z "$5" ]
+       then
+               mkfs.ext3 -F -j $dev > /dev/null 2>&1 && fsck -fn $dev >&2
+       fi
+       dsize=$[dvsize/chunk]
+       dsize=$[dsize*chunk]
+       rasize=$[dsize*2*cnt]
+       # rasize is in sectors
+       if [ -n "$DEV_ROUND_K" ]
+       then
+               rasize=$[rasize/DEV_ROUND_K/2]
+               rasize=$[rasize*DEV_ROUND_K*2]
+       fi
+       [ `/sbin/blockdev --getsize $dev` -eq 0 ] && sleep 2
+       _sz=`/sbin/blockdev --getsize $dev`
+       [ $rasize -lt $_sz -o $[rasize*4/5] -gt $_sz ] &&
+               die "size is wrong for $dev: $cnt * $dvsize (chunk=$chunk) = $rasize, not $_sz"
+       return 0
+}
+
+rotest() {
+       dev=$1
+       fsck -fn $dev >&2
+}