mirror of
git://sourceware.org/git/lvm2.git
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5dbe2fdd9d
Fix the two-step writecache detach in commit c32d7fed4f.
In the case of uncache, the cachevol is removed after
detaching the writecache. When the detach is finished
in the second step, the remove must wait until then.
183 lines
4.1 KiB
Bash
183 lines
4.1 KiB
Bash
#!/usr/bin/env bash
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# Copyright (C) 2018 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 writecache usage
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SKIP_WITH_LVMPOLLD=1
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. lib/inittest
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aux have_writecache 1 0 0 || skip
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which mkfs.xfs || skip
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# scsi_debug devices with 512 LBS 512 PBS
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aux prepare_scsi_debug_dev 1200
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check sysfs "$(< SCSI_DEBUG_DEV)" queue/logical_block_size "512"
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check sysfs "$(< SCSI_DEBUG_DEV)" queue/physical_block_size "512"
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aux prepare_devs 2 600
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blockdev --getss "$dev1"
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blockdev --getpbsz "$dev1"
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blockdev --getss "$dev2"
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blockdev --getpbsz "$dev2"
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mnt="mnt"
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mkdir -p $mnt
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awk 'BEGIN { while (z++ < 16384) printf "A" }' > fileA
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awk 'BEGIN { while (z++ < 16384) printf "B" }' > fileB
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awk 'BEGIN { while (z++ < 16384) printf "C" }' > fileC
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# generate random data
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dd if=/dev/urandom of=randA bs=512K count=2
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dd if=/dev/urandom of=randB bs=512K count=3
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dd if=/dev/urandom of=randC bs=512K count=4
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_add_new_data_to_mnt() {
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mkfs.xfs -f "$DM_DEV_DIR/$vg/$lv1"
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mount "$DM_DEV_DIR/$vg/$lv1" $mnt
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# add original data
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cp randA $mnt
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cp randB $mnt
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cp randC $mnt
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mkdir $mnt/1
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cp fileA $mnt/1
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cp fileB $mnt/1
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cp fileC $mnt/1
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mkdir $mnt/2
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cp fileA $mnt/2
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cp fileB $mnt/2
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cp fileC $mnt/2
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sync
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}
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_add_more_data_to_mnt() {
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mkdir $mnt/more
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cp fileA $mnt/more
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cp fileB $mnt/more
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cp fileC $mnt/more
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cp randA $mnt/more
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cp randB $mnt/more
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cp randC $mnt/more
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sync
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}
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_verify_data_on_mnt() {
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diff randA $mnt/randA
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diff randB $mnt/randB
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diff randC $mnt/randC
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diff fileA $mnt/1/fileA
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diff fileB $mnt/1/fileB
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diff fileC $mnt/1/fileC
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diff fileA $mnt/2/fileA
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diff fileB $mnt/2/fileB
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diff fileC $mnt/2/fileC
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}
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_verify_more_data_on_mnt() {
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diff randA $mnt/more/randA
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diff randB $mnt/more/randB
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diff randC $mnt/more/randC
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diff fileA $mnt/more/fileA
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diff fileB $mnt/more/fileB
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diff fileC $mnt/more/fileC
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}
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_verify_data_on_lv() {
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lvchange -ay $vg/$lv1
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mount "$DM_DEV_DIR/$vg/$lv1" $mnt
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_verify_data_on_mnt
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rm $mnt/randA
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rm $mnt/randB
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rm $mnt/randC
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rm -rf $mnt/1
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rm -rf $mnt/2
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umount $mnt
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lvchange -an $vg/$lv1
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}
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vgcreate $SHARED $vg "$dev1"
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vgextend $vg "$dev2"
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# Use a large enough size so that the cleaner will not
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# finish immediately when detaching, and will require
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# a secondary check from command top level.
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lvcreate -n $lv1 -L 560M -an $vg "$dev1"
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lvcreate -n $lv2 -L 500M -an $vg "$dev2"
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lvchange -ay $vg/$lv1
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blockdev --getss "$DM_DEV_DIR/$vg/$lv1"
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blockdev --getpbsz "$DM_DEV_DIR/$vg/$lv1"
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lvconvert --yes --type writecache --cachevol $lv2 $vg/$lv1
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dmsetup table $vg-$lv1
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blockdev --getss "$DM_DEV_DIR/$vg/$lv1"
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blockdev --getpbsz "$DM_DEV_DIR/$vg/$lv1"
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_add_new_data_to_mnt
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_add_more_data_to_mnt
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_verify_data_on_mnt
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dd if=/dev/zero of=$mnt/big1 bs=1M count=100 oflag=sync
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dd if=/dev/zero of=$mnt/big2 bs=1M count=100 oflag=sync
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dd if=/dev/zero of=$mnt/big3 bs=1M count=100 oflag=sync
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dd if=/dev/zero of=$mnt/big4 bs=1M count=100 oflag=sync
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lvconvert --splitcache $vg/$lv1
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check lv_field $vg/$lv1 segtype linear
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check lv_field $vg/$lv2 segtype linear
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dmsetup table $vg-$lv1
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_verify_data_on_mnt
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_verify_more_data_on_mnt
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dd if=$mnt/big4 of=/dev/null bs=1M count=100
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umount $mnt
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lvchange -an $vg/$lv1
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_verify_data_on_lv
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lvchange -an $vg/$lv2
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lvremove $vg/$lv1
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lvremove $vg/$lv2
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# Repeat similar using uncache
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lvcreate -n $lv1 -L 560M -an $vg "$dev1"
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lvcreate -n $lv2 -L 500M -an $vg "$dev2"
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lvchange -ay $vg/$lv1
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lvconvert --yes --type writecache --cachevol $lv2 $vg/$lv1
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_add_new_data_to_mnt
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_add_more_data_to_mnt
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dd if=/dev/zero of=$mnt/big1 bs=1M count=100 oflag=sync
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umount $mnt
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lvchange -an $vg/$lv1
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lvconvert --uncache $vg/$lv1
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check lv_field $vg/$lv1 segtype linear
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not lvs $vg/$lv2
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lvchange -ay $vg/$lv1
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mount "$DM_DEV_DIR/$vg/$lv1" $mnt
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_verify_data_on_mnt
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_verify_more_data_on_mnt
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umount $mnt
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lvchange -an $vg/$lv1
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vgremove -ff $vg
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