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From 7db3a53d8a3aa7401337fb9aaf00f19cf4407e70 Mon Sep 17 00:00:00 2001
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From: Zdenek Kabelac <zkabelac@redhat.com>
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Date: Wed, 30 Mar 2022 14:16:11 +0200
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Subject: [PATCH 3/4] thin: fix message processing on thin-pool extension
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When thin-pool had queued some delete message on extension operation
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such message has been 'lost' and thin-pool kernel metadata has been
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left with a thin volume that no longer existed for lvm2 metadata.
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(cherry picked from commit 09371131469f7398c597a5fb30dc565859253cc2)
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---
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WHATS_NEW | 4 ++
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lib/metadata/lv_manip.c | 2 +-
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test/shell/lvextend-thin-adddel.sh | 78 ++++++++++++++++++++++++++++++
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3 files changed, 83 insertions(+), 1 deletion(-)
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create mode 100644 test/shell/lvextend-thin-adddel.sh
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diff --git a/WHATS_NEW b/WHATS_NEW
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index e626802ec..bffd24648 100644
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--- a/WHATS_NEW
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+++ b/WHATS_NEW
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@@ -2,6 +2,10 @@ Version 2.03.17 -
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===============================
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Fix lvconvert --test --type vdo-pool execution.
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+Version 2.03.16 -
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+====================================
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+ Fix lossing of delete message on thin-pool extension.
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+
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Version 2.03.14 - 20th October 2021
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===================================
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Device scanning is skipping directories on different filesystems.
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diff --git a/lib/metadata/lv_manip.c b/lib/metadata/lv_manip.c
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index 003748d6f..9523e3e66 100644
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--- a/lib/metadata/lv_manip.c
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+++ b/lib/metadata/lv_manip.c
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@@ -6179,7 +6179,7 @@ int lv_resize(struct logical_volume *lv,
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if (lv_is_thin_pool(lock_lv)) {
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/* Update lvm pool metadata (drop messages). */
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- if (!update_pool_lv(lock_lv, 0))
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+ if (!update_pool_lv(lock_lv, 1))
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goto_bad;
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}
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diff --git a/test/shell/lvextend-thin-adddel.sh b/test/shell/lvextend-thin-adddel.sh
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new file mode 100644
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index 000000000..59b1bfa41
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--- /dev/null
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+++ b/test/shell/lvextend-thin-adddel.sh
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@@ -0,0 +1,78 @@
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+#!/usr/bin/env bash
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+
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+# Copyright (C) 2022 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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+
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+#
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+# Play with thin-pool and thin removal and creation in corner cases
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+#
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+
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+SKIP_WITH_LVMLOCKD=1
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+SKIP_WITH_LVMPOLLD=1
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+
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+export LVM_TEST_THIN_REPAIR_CMD=${LVM_TEST_THIN_REPAIR_CMD-/bin/false}
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+
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+. lib/inittest
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+
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+aux have_thin 1 0 0 || skip
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+
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+test -n "$LVM_TEST_THIN_RESTORE_CMD" || LVM_TEST_THIN_RESTORE_CMD=$(which thin_restore) || skip
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+"$LVM_TEST_THIN_RESTORE_CMD" -V || skip
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+
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+aux have_thin 1 10 0 || skip
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+
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+aux prepare_vg 2
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+
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+lvcreate -V10 -n $lv1 -L10 -T $vg/pool
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+lvcreate -V10 -n $lv2 $vg/pool
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+
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+# Forcibly 'error' _tmeta thin-pool metadata device
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+not dmsetup remove -f $vg-pool_tmeta
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+
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+# Now try to schedule removal of thin volume id 1
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+# that will fail with errored meta device
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+not lvremove -y $vg/$lv1
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+
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+# Check we have queued 'message'
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+vgcfgbackup -f out0 $vg
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+grep "message1" out0
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+
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+vgchange -an $vg || true
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+
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+not dmsetup table ${vg}-pool-tpool
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+
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+# Reactivate thin-pool
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+vgchange -ay $vg
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+
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+# Check message is still queued there
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+vgcfgbackup -f out1 $vg
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+grep "message1" out1
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+
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+lvchange -an $vg
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+
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+lvextend -L+10 $vg/pool
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+
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+# Messages should be now processed and gone
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+vgcfgbackup -f out2 $vg
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+not grep "message1" out2
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+
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+lvchange -an $vg
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+
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+lvchange -y -ay $vg/pool_tmeta
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+
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+# Kernel metadata must not see dev_id 1 either
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+thin_dump $DM_DEV_DIR/$vg/pool_tmeta | tee meta
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+not grep 'dev_id="1"' meta
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+
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+lvremove -ff $vg
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+
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+lvs -a $vg
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+
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+vgremove -ff $vg
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--
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2.38.1
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