mirror of
git://sourceware.org/git/lvm2.git
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93 lines
2.3 KiB
Bash
93 lines
2.3 KiB
Bash
#!/bin/sh
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# Copyright (C) 2015 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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# Test unaligned size of external origin and thin pool chunk size
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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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test -e LOCAL_LVMPOLLD && skip
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which cmp || skip
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#
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# Main
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#
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# Test needs thin-pool target with unaligned ext-orig size support
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aux have_thin 1 13 0 || skip
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aux prepare_pvs 2 640
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# Use 8K extent size
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vgcreate $vg -s 8K $(cat DEVICES)
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# Prepare some numeric pattern with ~64K size
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seq -s ' ' -w 0 10922 > 64K
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d1="$DM_DEV_DIR/$vg/$lv1"
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d2="$DM_DEV_DIR/$vg/$lv2"
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# Prepare external origin LV with size not being a multiple of thin pool chunk size
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lvcreate -l47 -n $lv1 $vg
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# Fill end with pattern
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dd if=64K of="$d1" bs=8192 seek=45 count=2 conv=fdatasync
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# Switch to read-only volume
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lvchange -an $vg/$lv1
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lvchange -pr $vg/$lv1
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lvcreate -L2M -T $vg/pool -c 192K
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lvcreate -s $vg/$lv1 --name $lv2 --thinpool $vg/pool
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# Check the tail of $lv2 matches $lv1
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dd if="$d2" of=16K bs=8192 skip=45 count=2
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cmp -n 16384 -l 64K 16K
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# Now extend and rewrite
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lvextend -l+2 $vg/$lv2
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dd if=64K of="$d2" bs=8192 seek=46 count=3 conv=fdatasync
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dd if="$d2" of=24K bs=8192 skip=46 count=3 iflag=direct
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cmp -n 24576 -l 64K 24K
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# Consumes 2 192K chunks -> 66.67%
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check lv_field $vg/$lv2 data_percent "66.67"
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lvreduce -f -l-24 $vg/$lv2
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dd if=64K of="$d2" bs=8192 seek=24 count=1 conv=fdatasync
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dd if="$d2" of=8K bs=8192 skip=24 count=1 iflag=direct
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cmp -n 8192 -l 64K 8K
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# Check extension still works
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lvextend -l+2 $vg/$lv2
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lvremove -f $vg/pool
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lvcreate -L256M -T $vg/pool -c 64M
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lvcreate -s $vg/$lv1 --name $lv2 --thinpool $vg/pool
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lvextend -l+2 $vg/$lv2
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dd if=64K of="$d2" bs=8192 seek=45 count=4 conv=fdatasync
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dd if="$d2" of=32K bs=8192 skip=45 count=4 iflag=direct
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cmp -n 32768 -l 64K 32K
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lvextend -L+64M $vg/$lv2
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# Consumes 64M chunk -> 50%
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check lv_field $vg/$lv2 data_percent "50.00"
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vgremove -ff $vg
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