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tests: faster check for flushing

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Try minimizing delay in detecting 'cleaner' policy precence,
so we can fast interrupt running lvconvert.
This commit is contained in:
Zdenek Kabelac 2023-07-14 23:24:23 +02:00
parent f71d3cce93
commit ac25dd9be6
1 changed files with 9 additions and 10 deletions
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19
test/shell/lvconvert-cache-abort.sh
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@ -31,11 +31,9 @@ lvcreate -H -L $SIZE_MB -n $lv1 --chunksize 32k --cachemode writeback --cachepoo
#
# Ensure cache gets promoted blocks
#
for i in $(seq 1 3) ; do
echo 3 >/proc/sys/vm/drop_caches
dd if=/dev/zero of="$DM_DEV_DIR/$vg/$lv1" bs=1M count=$SIZE_MB conv=fdatasync || true
echo 3 >/proc/sys/vm/drop_caches
dd if="$DM_DEV_DIR/$vg/$lv1" of=/dev/null bs=1M count=$SIZE_MB || true
for i in $(seq 1 2) ; do
dd if=/dev/zero of="$DM_DEV_DIR/$vg/$lv1" bs=1M count=$SIZE_MB oflag=direct || true
dd if="$DM_DEV_DIR/$vg/$lv1" of=/dev/null bs=1M count=$SIZE_MB iflag=direct || true
done
aux delay_dev "$dev2" 0 300 "$(get first_extent_sector "$dev2"):"
@ -53,20 +51,21 @@ test "$(get lv_field $vg/$lv1 cache_dirty_blocks)" -gt 0 || {
LVM_TEST_TAG="kill_me_$PREFIX" lvconvert -vvvv --splitcache $vg/$lv1 >logconvert 2>&1 &
PID_CONVERT=$!
for i in {1..50}; do
dmsetup table "$vg-$lv1" |& tee out
grep cleaner out && break
out=$(dmsetup status --noflush "$vg-$lv1")
case "$out" in
*cleaner*) break;;
esac
echo "$i: Waiting for cleaner policy on $vg/$lv1"
sleep .05
sleep .01
done
test "$i" -ge 49 && die "Waited for cleaner policy on $vg/$lv1 too long!"
# While lvconvert updated table to 'cleaner' policy now it
# While lvconvert updated table to 'cleaner' policy now it
# should be running in 'Flushing' loop and just 1 KILL should
# cause abortion of flushing
kill -INT $PID_CONVERT
aux enable_dev "$dev2"
wait
#cat logconvert || true
# Problem of this test is, in older kernels, even the initial change to cleaner