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b82d5ee092
Thin pool discard mode set in metadata can be different from the one actually used if any device underneath does not support that mode. Add kernel_discard report field to make it possible to see this difference.
96 lines
2.9 KiB
Bash
96 lines
2.9 KiB
Bash
#!/bin/sh
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# Copyright (C) 2012-2013 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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#
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# test support of thin discards
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#
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SKIP_WITH_LVMPOLLD=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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#
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# Main
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#
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aux have_thin 1 1 0 || skip
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aux prepare_pvs 2 64
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aux extend_filter_LVMTEST
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vgcreate $vg -s 64K $(cat DEVICES)
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# Create named pool only
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lvcreate -l1 --discards ignore -T $vg/pool
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check lv_field $vg/pool discards "ignore"
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check lv_field $vg/pool kernel_discards "ignore"
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lvcreate -l1 --discards nopassdown -T $vg/pool1
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check lv_field $vg/pool1 discards "nopassdown"
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check lv_field $vg/pool1 kernel_discards "nopassdown"
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lvcreate -l1 --discards passdown -T $vg/pool2
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check lv_field $vg/pool2 discards "passdown"
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check lv_field $vg/pool2 discards "passdown"
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lvchange --discards nopassdown $vg/pool2
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lvcreate -V1M -n origin -T $vg/pool
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lvcreate -s $vg/origin -n snap
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# Cannot convert active nopassdown -> ignore
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not lvchange --discards nopassdown $vg/pool
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# Cannot convert active ignore -> passdown
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not lvchange --discards passdown $vg/pool
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# Cannot convert active nopassdown -> ignore
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not lvchange --discards ignore $vg/pool1
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# Deactivate pool only
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lvchange -an $vg/pool $vg/pool1
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# Cannot convert, since thin volumes are still active
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not lvchange --discards passdown $vg/pool
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# Deactive thin volumes
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lvchange -an $vg/origin $vg/snap
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lvchange --discards passdown $vg/pool
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check lv_field $vg/pool discards "passdown"
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lvchange --discards ignore $vg/pool1
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check lv_field $vg/pool1 discards "ignore"
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vgremove -ff $vg
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# Create thin pool with discards set to "ignore".
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# If we create a thin volume which we use for a PV
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# which we use to create another thin pool on top
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# with discards set to "passdown", the discards value
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# in metadata is still "passdown", but because the
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# device below does not support it, the kernel value
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# of discards actually used will be "nopassdown".
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# This is why we have "-o discards" and "-o kernel_discards".
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vgcreate -s 1m ${vg}_1 $(cat DEVICES)
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lvcreate -l 10 -T ${vg}_1/pool --discards ignore
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lvcreate -V 9m -T ${vg}_1/pool -n device_with_ignored_discards
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vgcreate -s 1m ${vg}_2 "$DM_DEV_DIR/${vg}_1/device_with_ignored_discards"
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lvcreate -l 1 -T ${vg}_2/pool --discards passdown
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lvcreate -V 1 -T ${vg}_2/pool
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check lv_field ${vg}_1/pool discards "ignore"
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check lv_field ${vg}_1/pool kernel_discards "ignore"
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check lv_field ${vg}_2/pool discards "passdown"
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check lv_field ${vg}_2/pool kernel_discards "nopassdown"
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vgremove -ff ${vg}_2
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vgremove -ff ${vg}_1
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