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accf324ccb
Check lvconvert -Zn does not zero thin-pool metadata. Also check --type zero is usable for thin-pool data.
99 lines
2.3 KiB
Bash
99 lines
2.3 KiB
Bash
#!/usr/bin/env bash
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# Copyright (C) 2020 Red Hat, Inc. All rights reserved.
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#
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# This copyrighted material is made available to anyone wishing to use,
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# modify, copy, or redistribute it subject to the terms and conditions
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# of the GNU General Public License v.2.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software Foundation,
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# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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# test foreing user of thin-pool
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SKIP_WITH_LVMPOLLD=1
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. lib/inittest
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clean_thin_()
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{
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aux udev_wait
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dmsetup remove "$THIN" || { sleep .5 ; dmsetup remove "$THIN" ; }
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}
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cleanup_mounted_and_teardown()
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{
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clean_thin_ || true
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vgremove -ff $vg
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aux teardown
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}
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#
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# Main
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#
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aux have_thin 1 0 0 || skip
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which mkfs.ext4 || skip
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# Use our mkfs config file to get approximately same results
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# TODO: maybe use it for all test via some 'prepare' function
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export MKE2FS_CONFIG="$TESTOLDPWD/lib/mke2fs.conf"
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aux prepare_vg 2 64
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# Create named pool only
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lvcreate -L2 -T $vg/pool
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POOL="$vg-pool"
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THIN="${PREFIX}_thin"
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# Foreing user is using own ioctl command to create thin devices
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dmsetup message $POOL 0 "create_thin 0"
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dmsetup message $POOL 0 "set_transaction_id 0 2"
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# Once the transaction id has changed, lvm2 shall not be able to create thinLV
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fail lvcreate -V10 $vg/pool
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trap 'cleanup_mounted_and_teardown' EXIT
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# 20M thin device
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dmsetup create "$THIN" --table "0 40960 thin $DM_DEV_DIR/mapper/$POOL 0"
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mkfs.ext4 "$DM_DEV_DIR/mapper/$THIN"
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clean_thin_
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lvchange -an $vg/pool
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# Repair thin-pool used by 'foreing' apps (setting their own tid)
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lvconvert --repair $vg/pool 2>&1 | tee out
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not grep "Transaction id" out
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lvchange -ay $vg/pool
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dmsetup create "$THIN" --table "0 40960 thin $DM_DEV_DIR/mapper/$POOL 0"
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fsck -n "$DM_DEV_DIR/mapper/$THIN"
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clean_thin_
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lvchange -an $vg
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# Take a copy of metadata
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lvchange -y -ay $vg/pool_tmeta
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lvcreate -L2 -n $lv1 $vg
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dd if="$DM_DEV_DIR/$vg/pool_tmeta" of="$DM_DEV_DIR/$vg/$lv1" bs=1M count=1
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# Use zero backend for data device
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lvcreate --type zero -L2 -n $lv2 $vg
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lvconvert --thinpool $vg/$lv2 --poolmetadata $vg/$lv1 -Zn -y
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# Metadata should NOT be zeroed and device should be available
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dmsetup create "$THIN" --table "0 40960 thin $DM_DEV_DIR/$vg/$lv2 0"
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# exit calls cleanup_mounted_and_teardown
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