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#!/usr/bin/env bash
# Copyright (C) 2018 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,
# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
# Test single lv cache options
SKIP_WITH_LVMPOLLD=1
. lib/inittest
mkfs_mount_umount()
{
lvt=$1
mkfs.xfs -f -s size=4096 "$DM_DEV_DIR/$vg/$lvt"
mount "$DM_DEV_DIR/$vg/$lvt" "$mount_dir"
cp pattern1 "$mount_dir/pattern1"
dd if=/dev/zero of="$mount_dir/zeros2M" bs=1M count=32 conv=fdatasync
umount "$mount_dir"
}
mount_umount()
{
lvt=$1
mount "$DM_DEV_DIR/$vg/$lvt" "$mount_dir"
diff pattern1 "$mount_dir/pattern1"
dd if="$mount_dir/zeros2M" of=/dev/null bs=1M count=32
umount "$mount_dir"
}
aux have_writecache 1 0 0 || skip
which mkfs.xfs || skip
mount_dir="mnt"
mkdir -p "$mount_dir"
# generate random data
dd if=/dev/urandom of=pattern1 bs=512K count=1
aux prepare_devs 4 301
vgcreate $SHARED $vg "$dev1" "$dev2" "$dev3" "$dev4"
lvcreate -n $lv1 -L 300 -an $vg "$dev1" "$dev4"
lvcreate -n $lv2 -l 4 -an $vg "$dev2"
#
# split while inactive
#
lvconvert -y --type writecache --cachevol $lv2 $vg/$lv1
lvchange -ay $vg/$lv1
mkfs_mount_umount $lv1
lvchange -an $vg/$lv1
lvconvert --splitcache $vg/$lv1
lvs -o segtype $vg/$lv1 | grep linear
lvs -o segtype $vg/$lv2 | grep linear
lvchange -ay $vg/$lv1
mount_umount $lv1
lvchange -an $vg/$lv1
#
# split while active
#
lvconvert -y --type writecache --cachevol $lv2 $vg/$lv1
lvchange -ay $vg/$lv1
mkfs_mount_umount $lv1
lvconvert --splitcache $vg/$lv1
lvs -o segtype $vg/$lv1 | grep linear
lvs -o segtype $vg/$lv2 | grep linear
mount_umount $lv1
lvchange -an $vg/$lv1
#
# split while cachevol is missing
#
lvconvert -y --type writecache --cachevol $lv2 $vg/$lv1
lvchange -ay $vg/$lv1
mkfs_mount_umount $lv1
lvchange -an $vg/$lv1
aux disable_dev "$dev2"
lvs -a -o+lv_health_status $vg |tee out
grep $lv1 out | grep partial
grep $lv2 out | grep partial
check lv_attr_bit health $vg/$lv1 "p"
not lvconvert --splitcache $vg/$lv1
lvconvert --splitcache --force --yes $vg/$lv1
lvs -o segtype $vg/$lv1 | grep linear
aux enable_dev "$dev2"
lvs -o segtype $vg/$lv2 | grep linear
vgck --updatemetadata $vg
lvs $vg
vgchange -an $vg
vgextend --restoremissing $vg "$dev2"
#
# split while cachevol has 1 of 2 PVs
#
lvremove $vg/$lv2
lvcreate -n $lv2 -l 14 -an $vg "$dev2:0-10" "$dev3"
lvconvert -y --type writecache --cachevol $lv2 $vg/$lv1
lvchange -ay $vg/$lv1
mkfs_mount_umount $lv1
lvchange -an $vg/$lv1
aux disable_dev "$dev3"
lvs -a -o+lv_health_status $vg |tee out
grep $lv1 out | grep partial
grep $lv2 out | grep partial
check lv_attr_bit health $vg/$lv1 "p"
not lvconvert --splitcache $vg/$lv1
lvconvert --splitcache --force --yes $vg/$lv1
lvs -o segtype $vg/$lv1 | grep linear
aux enable_dev "$dev3"
lvs -o segtype $vg/$lv2 | grep linear
vgck --updatemetadata $vg
lvs $vg
vgchange -an $vg
vgextend --restoremissing $vg "$dev3"
vgremove -ff $vg
#
# split while cachevol is damaged
#
vgcreate $SHARED $vg "$dev1" "$dev2" "$dev3" "$dev4"
lvcreate -n $lv1 -L 300 -an $vg "$dev1" "$dev4"
lvcreate -n $lv2 -l 4 -an $vg "$dev2"
lvchange -ay $vg/$lv1
mkfs_mount_umount $lv1
lvconvert -y --type writecache --cachevol $lv2 $vg/$lv1
mount "$DM_DEV_DIR/$vg/$lv1" "$mount_dir"
diff pattern1 "$mount_dir/pattern1"
cp pattern1 "$mount_dir/pattern2"
umount "$mount_dir"
lvchange -an $vg/$lv1
dd if=/dev/zero of="$dev2" seek=1 bs=1M count=16
lvconvert --splitcache --force --yes $vg/$lv1
lvchange -ay $vg/$lv1
mount "$DM_DEV_DIR/$vg/$lv1" "$mount_dir"
diff pattern1 "$mount_dir/pattern1"
umount "$mount_dir"
lvchange -an $vg/$lv1
vgremove -ff $vg
#
# splitcache when origin is raid
#
vgcreate $vg "$dev1" "$dev2" "$dev3" "$dev4"
lvcreate --type raid1 -m1 -L6 -n $lv1 -an $vg "$dev1" "$dev2"
lvcreate -L6 -n $lv2 -an $vg "$dev3"
lvconvert -y --type writecache --cachevol $lv2 $vg/$lv1
lvchange -ay $vg/$lv1
lvchange -an $vg/$lv1
lvconvert --splitcache $vg/$lv1
lvs $vg/$lv1
lvs $vg/$lv2
vgremove -ff $vg
#
# vgsplit should not separate cachevol from main lv
#
vgcreate $vg "$dev1" "$dev2" "$dev3" "$dev4"
lvcreate -L6 -n $lv1 -an $vg "$dev2"
lvcreate -L6 -n $lv2 -an $vg "$dev3"
lvconvert -y --type writecache --cachevol $lv2 $vg/$lv1
fail vgsplit $vg $vg1 "$dev2"
fail vgsplit $vg $vg1 "$dev3"
lvremove $vg/$lv1
vgremove $vg
#
# uncache
#
vgcreate $SHARED $vg "$dev1" "$dev2" "$dev3" "$dev4"
# while inactive
lvcreate -n $lv1 -L 300 -an $vg "$dev1" "$dev4"
lvcreate -n $lv2 -l 4 -an $vg "$dev2"
lvconvert -y --type writecache --cachevol $lv2 $vg/$lv1
lvchange -ay $vg/$lv1
mkfs_mount_umount $lv1
lvchange -an $vg/$lv1
lvconvert --uncache $vg/$lv1
lvs -o segtype $vg/$lv1 | grep linear
not lvs $vg/$lv2
lvchange -ay $vg/$lv1
mount_umount $lv1
lvchange -an $vg/$lv1
lvremove -y $vg/$lv1
# while active
lvcreate -n $lv1 -L 300 -an $vg "$dev1" "$dev4"
lvcreate -n $lv2 -l 4 -an $vg "$dev2"
lvconvert -y --type writecache --cachevol $lv2 $vg/$lv1
lvchange -ay $vg/$lv1
mkfs_mount_umount $lv1
lvconvert --uncache $vg/$lv1
lvs -o segtype $vg/$lv1 | grep linear
not lvs $vg/$lv2
lvchange -an $vg/$lv1
lvchange -ay $vg/$lv1
mount_umount $lv1
lvchange -an $vg/$lv1
lvremove -y $vg/$lv1
vgremove -ff $vg
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