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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
aux have_cache 1 10 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 5 310
vgcreate $SHARED $vg "$dev1" "$dev2" "$dev3" "$dev4" "$dev5"
lvcreate -n $lv1 -L 300 -an $vg "$dev1"
lvcreate -n $lv2 -l 4 -an $vg "$dev2"
lvcreate -n $lv3 -l 4 -an $vg "$dev3"
lvcreate -n $lv4 -l 4 -an $vg "$dev4"
lvcreate -n $lv5 -l 8 -an $vg "$dev5"
mkfs_mount_umount()
{
lvt=$1
lvchange -ay $vg/$lvt
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="$mount_dir/zeros2M" bs=1M count=2 conv=fdatasync
umount "$mount_dir"
lvchange -an $vg/$lvt
}
mount_umount()
{
lvt=$1
lvchange -ay $vg/$lvt
mount "$DM_DEV_DIR/$vg/$lvt" "$mount_dir"
diff pattern1 "$mount_dir/pattern1"
dd if="$mount_dir/zeros2M" of=/dev/null bs=1M count=2
umount "$mount_dir"
lvchange -an $vg/$lvt
}
#
# Test --cachemetadataformat
#
# 1 shouldn't be used any longer
not lvconvert --cachemetadataformat 1 -y --type cache --cachevol $lv2 $vg/$lv1
# 3 doesn't exist
not lvconvert --cachemetadataformat 3 -y --type cache --cachevol $lv2 $vg/$lv1
# 2 is used by default
lvconvert -y --type cache --cachevol $lv2 $vg/$lv1
check lv_field $vg/$lv1 cachemetadataformat "2"
lvconvert --splitcache $vg/$lv1
check lv_field $vg/$lv1 segtype linear
check lv_field $vg/$lv2 segtype linear
# 2 can be set explicitly
lvconvert --cachemetadataformat 2 -y --type cache --cachevol $lv2 $vg/$lv1
check lv_field $vg/$lv1 cachemetadataformat "2"
lvconvert --splitcache $vg/$lv1
# "auto" means 2
lvconvert --cachemetadataformat auto -y --type cache --cachevol $lv2 $vg/$lv1
check lv_field $vg/$lv1 cachemetadataformat "2"
mkfs_mount_umount $lv1
lvconvert --splitcache $vg/$lv1
check lv_field $vg/$lv1 segtype linear
check lv_field $vg/$lv2 segtype linear
mount_umount $lv1
#
# Test --poolmetadatasize
#
lvconvert -y --type cache --cachevol $lv2 --poolmetadatasize 4m $vg/$lv1
check lv_field $vg/$lv1 lv_metadata_size "4.00m"
mkfs_mount_umount $lv1
lvconvert --splitcache $vg/$lv1
check lv_field $vg/$lv1 segtype linear
check lv_field $vg/$lv2 segtype linear
mount_umount $lv1
#
# Test --chunksize
#
lvconvert -y --type cache --cachevol $lv2 --chunksize 32k $vg/$lv1
check lv_field $vg/$lv1 chunksize "32.00k"
mkfs_mount_umount $lv1
lvconvert --splitcache $vg/$lv1
check lv_field $vg/$lv1 segtype linear
check lv_field $vg/$lv2 segtype linear
mount_umount $lv1
#
# Test --cachemode
#
lvconvert -y --type cache --cachevol $lv2 --cachemode writethrough $vg/$lv1
check lv_field $vg/$lv1 cachemode "writethrough"
mkfs_mount_umount $lv1
lvconvert --splitcache $vg/$lv1
check lv_field $vg/$lv1 segtype linear
check lv_field $vg/$lv2 segtype linear
mount_umount $lv1
# FIXME: kernel errors for other cache modes
#lvconvert -y --type cache --cachevol $lv2 --cachemode passthrough $vg/$lv1
#check lv_field $vg/$lv1 cachemode "passthrough"
#mkfs_mount_umount $lv1
#lvconvert --splitcache $vg/$lv1
#check lv_field $vg/$lv1 segtype linear
#check lv_field $vg/$lv2 segtype linear
#mount_umount $lv1
lvconvert -y --type cache --cachevol $lv2 --cachemode writeback $vg/$lv1
check lv_field $vg/$lv1 cachemode "writeback"
mkfs_mount_umount $lv1
lvconvert --splitcache $vg/$lv1
check lv_field $vg/$lv1 segtype linear
check lv_field $vg/$lv2 segtype linear
mount_umount $lv1
#
# Test --cachepolicy
#
lvconvert -y --type cache --cachevol $lv2 --cachepolicy smq $vg/$lv1
check lv_field $vg/$lv1 cachepolicy "smq"
mkfs_mount_umount $lv1
lvchange --cachepolicy cleaner $vg/$lv1
lvchange -ay $vg/$lv1
check lv_field $vg/$lv1 cachepolicy "cleaner"
lvchange -an $vg/$lv1
lvconvert --splitcache $vg/$lv1
check lv_field $vg/$lv1 segtype linear
check lv_field $vg/$lv2 segtype linear
mount_umount $lv1
#
# Test --cachesettings
# (only for mq policy, no settings for smq)
#
lvconvert -y --type cache --cachevol $lv2 --cachemode writethrough --cachepolicy mq --cachesettings 'migration_threshold = 233 sequential_threshold=13 random_threshold =1' $vg/$lv1
check lv_field $vg/$lv1 cachemode "writethrough"
check lv_field $vg/$lv1 cachepolicy "mq"
lvs -o cachesettings $vg/$lv1 > settings
grep "migration_threshold=233" settings
grep "sequential_threshold=13" settings
grep "random_threshold=1" settings
mkfs_mount_umount $lv1
lvconvert --splitcache $vg/$lv1
check lv_field $vg/$lv1 segtype linear
check lv_field $vg/$lv2 segtype linear
mount_umount $lv1
#
# Test lvchange of --cachemode, --cachepolicy, --cachesettings
#
lvconvert -y --type cache --cachevol $lv2 $vg/$lv1
lvchange -ay $vg/$lv1
lvchange -y --cachemode writeback $vg/$lv1
check lv_field $vg/$lv1 cachemode "writeback"
lvchange --cachemode writethrough $vg/$lv1
check lv_field $vg/$lv1 cachemode "writethrough"
lvchange --cachemode passthrough $vg/$lv1
check lv_field $vg/$lv1 cachemode "passthrough"
lvchange -an $vg/$lv1
lvchange --cachepolicy mq --cachesettings 'migration_threshold=100' $vg/$lv1
check lv_field $vg/$lv1 cachepolicy "mq"
check lv_field $vg/$lv1 cachesettings "migration_threshold=100"
lvconvert --splitcache $vg/$lv1
#
# Test --poolmetadata
#
# causes a cache-pool type LV to be created
lvconvert -y --type cache --cachepool $lv3 --poolmetadata $lv4 $vg/$lv5
lvs -a -o+segtype $vg
check lv_field $vg/$lv5 segtype cache
# check lv_field doesn't work for hidden lvs
lvs -a -o segtype $vg/${lv3}_cpool > segtype
grep cache-pool segtype
lvconvert --splitcache $vg/$lv5
check lv_field $vg/$lv5 segtype linear
check lv_field $vg/$lv3 segtype cache-pool
vgremove -ff $vg
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