diff options
Diffstat (limited to 'tests/qemu-iotests/176')
| -rwxr-xr-x | tests/qemu-iotests/176 | 55 |
1 files changed, 48 insertions, 7 deletions
diff --git a/tests/qemu-iotests/176 b/tests/qemu-iotests/176 index 950b28720e..0f31a20294 100755 --- a/tests/qemu-iotests/176 +++ b/tests/qemu-iotests/176 @@ -3,10 +3,11 @@ # Commit changes into backing chains and empty the top image if the # backing image is not explicitly specified. # -# Variant of 097, which includes snapshots to test different codepath -# in qcow2 +# Variant of 097, which includes snapshots and persistent bitmaps, to +# tickle the slow codepath in qcow2. See also 198, for another feature +# that tickles the slow codepath. # -# Copyright (C) 2014 Red Hat, Inc. +# Copyright (C) 2014, 2017 Red Hat, Inc. # # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by @@ -43,11 +44,18 @@ trap "_cleanup; exit \$status" 0 1 2 3 15 . ./common.filter . ./common.pattern -# Any format supporting backing files and bdrv_make_empty +# This test is specific to qcow2 _supported_fmt qcow2 _supported_proto file _supported_os Linux +function run_qemu() +{ + $QEMU -nographic -qmp stdio -serial none "$@" 2>&1 \ + | _filter_testdir | _filter_qmp | _filter_qemu +} + +for reason in snapshot bitmap; do # Four passes: # 0: Two-layer backing chain, commit to upper backing file (implicitly) @@ -66,14 +74,29 @@ _supported_os Linux for i in 0 1 2 3; do echo -echo "=== Test pass $i ===" +echo "=== Test pass $reason.$i ===" echo 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" +# Update the top image to use a feature that is incompatible with fast path +case $reason in + snapshot) $QEMU_IMG snapshot -c snap "$TEST_IMG" ;; + bitmap) + run_qemu <<EOF +{ "execute": "qmp_capabilities" } +{ "execute": "blockdev-add", + "arguments": { "driver": "qcow2", "node-name": "drive0", + "file": { "driver": "file", "filename": "$TEST_IMG" } } } +{ "execute": "block-dirty-bitmap-add", + "arguments": { "node": "drive0", "name": "bitmap0", + "persistent": true, "autoload": true } } +{ "execute": "quit" } +EOF + ;; +esac $QEMU_IO -c "write -P 1 0x7ffd0000 192k" "$TEST_IMG.base" | _filter_qemu_io $QEMU_IO -c "write -P 2 0x7ffe0000 128k" "$TEST_IMG.itmd" | _filter_qemu_io @@ -122,8 +145,26 @@ $QEMU_IMG map "$TEST_IMG.base" | _filter_qemu_img_map $QEMU_IMG map "$TEST_IMG.itmd" | _filter_qemu_img_map $QEMU_IMG map "$TEST_IMG" | _filter_qemu_img_map -done +# Check that the reason for slow path is still present, as appropriate +case $reason in + snapshot) + $QEMU_IMG snapshot -l "$TEST_IMG" | + sed 's/^\(.\{20\}\).*/\1/; s/ *$//' ;; + bitmap) + run_qemu <<EOF +{ "execute": "qmp_capabilities" } +{ "execute": "blockdev-add", + "arguments": { "driver": "qcow2", "node-name": "drive0", + "file": { "driver": "file", "filename": "$TEST_IMG" } } } +{ "execute": "x-debug-block-dirty-bitmap-sha256", + "arguments": { "node": "drive0", "name": "bitmap0" } } +{ "execute": "quit" } +EOF + ;; +esac +done +done # success, all done echo "*** done" |