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iotests: Improve image-clear tests on non-aligned image

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Tweak 097 and 176 to operate on an image that is not cluster-aligned,
to give further coverage of clearing out an entire image, including
the recent fix to eliminate the difference between fast path (97) and
slow (176) for qcow2.  Also tested on qcow (97 only, since qcow lacks
snapshots).

Signed-off-by: Eric Blake <eblake@redhat.com>
Message-id: 20170331185356.2479-4-eblake@redhat.com
Reviewed-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
This commit is contained in:
Eric Blake 2017-03-31 13:53:56 -05:00 • committed by Max Reitz
parent 0c1bd4692f
commit f82c5b17ea
4 changed files with 108 additions and 36 deletions
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17
tests/qemu-iotests/176
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@ -69,14 +69,16 @@ echo
echo "=== Test pass $i ==="
echo
TEST_IMG="$TEST_IMG.base" _make_test_img 2100M
TEST_IMG="$TEST_IMG.itmd" _make_test_img -b "$TEST_IMG.base" 2100M
_make_test_img -b "$TEST_IMG.itmd" 2100M
len=$((2100 * 1024 * 1024 + 512)) # larger than 2G, and not cluster aligned
TEST_IMG="$TEST_IMG.base" _make_test_img $len
TEST_IMG="$TEST_IMG.itmd" _make_test_img -b "$TEST_IMG.base" $len
_make_test_img -b "$TEST_IMG.itmd" $len
$QEMU_IMG snapshot -c snap "$TEST_IMG"
$QEMU_IO -c 'write -P 1 0x7ffd0000 192k' "$TEST_IMG.base" | _filter_qemu_io
$QEMU_IO -c 'write -P 2 0x7ffe0000 128k' "$TEST_IMG.itmd" | _filter_qemu_io
$QEMU_IO -c 'write -P 3 0x7fff0000 64k' "$TEST_IMG" | _filter_qemu_io
$QEMU_IO -c "write -P 1 0x7ffd0000 192k" "$TEST_IMG.base" | _filter_qemu_io
$QEMU_IO -c "write -P 2 0x7ffe0000 128k" "$TEST_IMG.itmd" | _filter_qemu_io
$QEMU_IO -c "write -P 3 0x7fff0000 64k" "$TEST_IMG" | _filter_qemu_io
$QEMU_IO -c "write -P 4 $(($len - 512)) 512" "$TEST_IMG" | _filter_qemu_io
if [ $i -lt 3 ]; then
if [ $i == 0 ]; then
@ -94,11 +96,13 @@ if [ $i -lt 3 ]; then
# Bottom should be unchanged
$QEMU_IO -c 'read -P 1 0x7ffd0000 192k' "$TEST_IMG.base" | _filter_qemu_io
$QEMU_IO -c "read -P 0 $((len - 512)) 512" "$TEST_IMG.base" | _filter_qemu_io
# Intermediate should contain changes from top
$QEMU_IO -c 'read -P 1 0x7ffd0000 64k' "$TEST_IMG.itmd" | _filter_qemu_io
$QEMU_IO -c 'read -P 2 0x7ffe0000 64k' "$TEST_IMG.itmd" | _filter_qemu_io
$QEMU_IO -c 'read -P 3 0x7fff0000 64k' "$TEST_IMG.itmd" | _filter_qemu_io
$QEMU_IO -c "read -P 4 $((len - 512)) 512" "$TEST_IMG.itmd" | _filter_qemu_io
# And in pass 0, the top image should be empty, whereas in both other passes
# it should be unchanged (which is both checked by qemu-img map)
@ -109,6 +113,7 @@ else
$QEMU_IO -c 'read -P 1 0x7ffd0000 64k' "$TEST_IMG.base" | _filter_qemu_io
$QEMU_IO -c 'read -P 2 0x7ffe0000 64k' "$TEST_IMG.base" | _filter_qemu_io
$QEMU_IO -c 'read -P 3 0x7fff0000 64k' "$TEST_IMG.base" | _filter_qemu_io
$QEMU_IO -c "read -P 4 $((len - 512)) 512" "$TEST_IMG.base" | _filter_qemu_io
# Both top and intermediate should be unchanged
fi