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test: Allow test devices backed by a permanent block device.

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This commit is contained in:
Petr Rockai 2014-06-27 00:44:53 +02:00
parent c5a120c443
commit 7957fc4a44
1 changed files with 20 additions and 9 deletions
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29
test/lib/aux.sh
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@ -273,7 +273,7 @@ prepare_loop() {
echo -n .
local LOOPFILE="$PWD/test.img"
dd if=/dev/zero of="$LOOPFILE" bs=$((1024*1024)) count=0 seek=$(($size-1)) 2> /dev/null
dd if=/dev/zero of="$LOOPFILE" bs=$((1024*1024)) count=0 seek=$(($size)) 2> /dev/null
if LOOP=$(losetup -s -f "$LOOPFILE" 2>/dev/null); then
:
elif LOOP=$(losetup -f) && losetup "$LOOP" "$LOOPFILE"; then
@ -295,7 +295,9 @@ prepare_loop() {
done
fi
test -n "$LOOP" # confirm or fail
BACKING_DEV="$LOOP"
echo "$LOOP" > LOOP
echo "$LOOP" > BACKING_DEV
echo "ok ($LOOP)"
}
@ -339,20 +341,24 @@ cleanup_scsi_debug_dev() {
rm -f SCSI_DEBUG_DEV LOOP
}
prepare_backing_dev() {
if test -b "$LVM_TEST_BACKING_DEVICE"; then
BACKING_DEV="$LVM_TEST_BACKING_DEVICE"
echo "$BACKING_DEV" > BACKING_DEV
else
prepare_loop "$@"
fi
}
prepare_devs() {
local n=${1:-3}
local devsize=${2:-34}
local pvname=${3:-pv}
local loopsz
prepare_loop $(($n*$devsize))
prepare_backing_dev $(($n*$devsize))
echo -n "## preparing $n devices..."
if ! loopsz=$(blockdev --getsz "$LOOP" 2>/dev/null); then
loopsz=$(blockdev --getsize "$LOOP" 2>/dev/null)
fi
local size=$(($loopsz/$n))
local size=$(($devsize*2048)) # sectors
local count=0
init_udev_transaction
for i in $(seq 1 $n); do
@ -360,11 +366,16 @@ prepare_devs() {
local dev="$DM_DEV_DIR/mapper/$name"
DEVICES[$count]=$dev
count=$(( $count + 1 ))
echo 0 $size linear "$LOOP" $((($i-1)*$size)) > "$name.table"
echo 0 $size linear "$BACKING_DEV" $((($i-1)*$size)) > "$name.table"
dmsetup create -u "TEST-$name" "$name" "$name.table"
done
finish_udev_transaction
# non-ephemeral devices need to be cleared between tests
test -f LOOP || for d in ${DEVICES[@]}; do
dd if=/dev/zero of=$d bs=1M count=1
done
#for i in `seq 1 $n`; do
# local name="${PREFIX}$pvname$i"
# dmsetup info -c $name