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#!/bin/bash
# Copyright (C) 2013 Red Hat, Inc. All rights reserved.
#
# This copyrighted material is made available to anyone wishing to use,
# modify, copy, or redistribute it subject to the terms and conditions
# of the GNU General Public License v.2.
#
# You should have received a copy of the GNU General Public License
# 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 merge of thin snapshot
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SKIP_WITH_LVMLOCKD = 1
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export LVM_TEST_THIN_REPAIR_CMD = ${ LVM_TEST_THIN_REPAIR_CMD -/bin/false }
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. lib/inittest
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MKFS = mkfs.ext2
which $MKFS || skip
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which fsck || skip
#
# Main
#
aux have_thin 1 0 0 || skip
aux prepare_vg 2
lvcreate -T -L8M $vg /pool -V10M -n $lv1
lvchange --addtag tagL $vg /$lv1
mkdir mnt
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$MKFS " $DM_DEV_DIR / $vg / $lv1 "
mount " $DM_DEV_DIR / $vg / $lv1 " mnt
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touch mnt/test
lvcreate -K -s -n snap --addtag tagS $vg /$lv1
mkdir mntsnap
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$MKFS " $DM_DEV_DIR / $vg /snap "
mount " $DM_DEV_DIR / $vg /snap " mntsnap
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touch mntsnap/test_snap
lvs -o+tags,thin_id $vg
lvconvert --merge $vg /snap
umount mnt
# Merge cannot happen
lvchange --refresh $vg /$lv1
check lv_field $vg /$lv1 thin_id "1"
# Fails since it cannot deactivate both
not lvchange -an $vg /$lv1
# But test $lv1 is not active
check inactive $vg $lv1
# Also still cannot reactivate $lv1
not lvchange -ay $vg /$lv1
umount mntsnap
lvdisplay -a $vg | tee out
grep "merged with" out
grep "merging to" out
# Check there is no support for manipulation with hidden 'snap'
not lvchange --refresh $vg /snap
not lvchange -an $vg /snap
not lvremove $vg /snap
# Finally deactivate 'snap' again via $lv1
lvchange -an $vg /$lv1
# Still must not be activable
not lvchange -K -ay $vg /snap
lvs -a -o +tags,thin_id $vg
# Test if merge happens
lvchange -ay $vg /$lv1
check lv_exists $vg $lv1
check lv_field $vg /$lv1 thin_id "2"
check lv_field $vg /$lv1 tags "tagL"
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check lv_not_exists $vg snap
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fsck -n " $DM_DEV_DIR / $vg / $lv1 "
mount " $DM_DEV_DIR / $vg / $lv1 " mnt
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test -e mnt/test_snap
umount mnt
# test if thin snapshot has also 'old-snapshot'
lvcreate -s -n snap $vg /$lv1
# Also add old snapshot to thin origin
lvcreate -s -L10 -n oldsnapof_${ lv1 } $vg /$lv1
not lvconvert --merge $vg /snap
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$MKFS " $DM_DEV_DIR / $vg /oldsnapof_ ${ lv1 } "
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lvconvert --merge $vg /oldsnapof_${ lv1 }
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fsck -n " $DM_DEV_DIR / $vg / $lv1 "
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check lv_not_exists $vg oldsnapof_${ lv1 }
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# Add old snapshot to thin snapshot
lvcreate -s -L10 -n oldsnapof_snap $vg /snap
lvconvert --merge $vg /snap
lvremove -f $vg /oldsnapof_snap
vgremove -ff $vg