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git://sourceware.org/git/lvm2.git
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86 lines
2.2 KiB
Bash
86 lines
2.2 KiB
Bash
#!/bin/sh
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# Copyright (C) 2016 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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# Exercise snapshot merge also when stacked
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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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which mkfs.ext3 || skip
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aux target_at_least dm-snapshot-merge 1 0 0 || skip
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aux prepare_vg 2 100
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snap_and_merge() {
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lvcreate -s -n $lv2 -L20 $vg/$lv1 "$dev2"
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#dd if=/dev/zero of="$DM_DEV_DIR/$vg/$lv1" bs=1M count=10 conv=fdatasync
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mkfs.ext3 "$DM_DEV_DIR/$vg/$lv2"
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sync
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lvs -a $vg
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# keep device open to prevent instant merge
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sleep 20 < "$DM_DEV_DIR/$vg/$lv1" &
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SLEEP_PID=$!
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# initiate background merge
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lvconvert -b --merge $vg/$lv2
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lvs -a -o+lv_merging,lv_merge_failed $vg
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kill $SLEEP_PID
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aux delay_dev "$dev1" 0 200 $(get first_extent_sector "$dev1"):
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lvchange --refresh $vg/$lv1
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dmsetup table
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lvs -a -o+lv_merging,lv_merge_failed $vg
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sleep 1
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check lv_attr_bit state $vg/$lv1 "a"
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check lv_attr_bit state $vg/$lv2 "a"
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aux error_dev "$dev2" $(get first_extent_sector "$dev2"):
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# delay to let snapshot merge 'discover' failing COW device
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sleep 1
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sync
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dmsetup status
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lvs -a -o+lv_merging,lv_merge_failed $vg
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check lv_attr_bit state $vg/$lv1 "m"
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check lv_attr_bit state $vg/$lv2 "m"
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# device OK and running in full speed
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aux enable_dev "$dev1" "$dev2"
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# reactivate so merge can finish
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lvchange -an $vg
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lvchange -ay $vg
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sleep 1
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lvs -a -o+lv_merging,lv_merge_failed $vg
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check lv_not_exists $vg $lv2
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fsck -n "$DM_DEV_DIR/$vg/$lv1"
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lvremove -f $vg
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}
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# First check merge on plain linear LV
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lvcreate -aey -L50 -n $lv1 $vg "$dev1"
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snap_and_merge
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# When available check merge of old snapshot with Thin LV being origin
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if aux have_thin 1 0 0 ; then
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lvcreate -T -L10 -V50 -n $lv1 $vg/pool "$dev1"
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snap_and_merge
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fi
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# TODO snapshot merge with Mirror, Raid, Cache...
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vgremove -f $vg
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