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8a2448a4ed
Seems some cache LV can't be made dirty easily with older cache policy implementations....
74 lines
2.1 KiB
Bash
74 lines
2.1 KiB
Bash
#!/usr/bin/env bash
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# Copyright (C) 2017 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 cache flushing is abortable
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SKIP_WITH_LVMLOCKD=1
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SKIP_WITH_LVMPOLLD=1
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. lib/inittest
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aux have_cache 1 3 0 || skip
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aux prepare_vg 2
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# Data device on later delayed dev1
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lvcreate -L4 -n cpool $vg "$dev1"
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lvconvert -y --type cache-pool $vg/cpool "$dev2"
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lvcreate -H -L 4 -n $lv1 --chunksize 32k --cachemode writeback --cachepool $vg/cpool $vg "$dev2"
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#
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# Ensure cache gets promoted blocks
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#
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for i in $(seq 1 10) ; do
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echo 3 >/proc/sys/vm/drop_caches
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dd if=/dev/zero of="$DM_DEV_DIR/$vg/$lv1" bs=64K count=20 conv=fdatasync || true
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echo 3 >/proc/sys/vm/drop_caches
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dd if="$DM_DEV_DIR/$vg/$lv1" of=/dev/null bs=64K count=20 || true
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done
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# Delay dev to ensure we have some time to 'capture' interrupt in flush
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aux delay_dev "$dev1" 100 0 "$(get first_extent_sector "$dev1"):"
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# TODO, how to make writeback cache dirty
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test "$(get lv_field $vg/$lv1 cache_dirty_blocks)" -gt 0 || {
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lvdisplay --maps $vg
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skip "Cannot make a dirty writeback cache LV."
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}
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sync
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dd if=/dev/zero of="$DM_DEV_DIR/$vg/$lv1" bs=4k count=100 conv=fdatasync
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LVM_TEST_TAG="kill_me_$PREFIX" lvconvert -v --splitcache $vg/$lv1 >logconvert 2>&1 &
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PID_CONVERT=$!
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for i in {1..50}; do
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dmsetup table "$vg-$lv1" | grep cleaner && break
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test "$i" -ge 100 && die "Waited for cleaner policy on $vg/$lv1 too long!"
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echo "Waiting for cleaner policy on $vg/$lv1"
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sleep .05
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done
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kill -INT $PID_CONVERT
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aux enable_dev "$dev1"
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wait
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grep -E "Flushing.*aborted" logconvert || {
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cat logconvert || true
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vgremove -f $vg
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die "Flushing of $vg/$lv1 not aborted ?"
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}
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# check the table got restored
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check grep_dmsetup table $vg-$lv1 "writeback"
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vgremove -f $vg
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