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Diffstat (limited to 'qemu/tests/qemu-iotests/115')
| -rwxr-xr-x | qemu/tests/qemu-iotests/115 | 94 |
1 files changed, 0 insertions, 94 deletions
diff --git a/qemu/tests/qemu-iotests/115 b/qemu/tests/qemu-iotests/115 deleted file mode 100755 index 665c2ead4..000000000 --- a/qemu/tests/qemu-iotests/115 +++ /dev/null @@ -1,94 +0,0 @@ -#!/bin/bash -# -# Test case for non-self-referential qcow2 refcount blocks -# -# Copyright (C) 2014 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 -# the Free Software Foundation; either version 2 of the License, or -# (at your option) any later version. -# -# This program is distributed in the hope that it will be useful, -# but WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -# GNU General Public License for more details. -# -# You should have received a copy of the GNU General Public License -# along with this program. If not, see <http://www.gnu.org/licenses/>. -# - -# creator -owner=mreitz@redhat.com - -seq="$(basename $0)" -echo "QA output created by $seq" - -here="$PWD" -status=1 # failure is the default! - -_cleanup() -{ - _cleanup_test_img -} -trap "_cleanup; exit \$status" 0 1 2 3 15 - -# get standard environment, filters and checks -. ./common.rc -. ./common.filter - -_supported_fmt qcow2 -_supported_proto file -_supported_os Linux -# This test relies on refcounts being 64 bits wide (which does not work with -# compat=0.10) -_unsupported_imgopts 'refcount_bits=\([^6]\|.\([^4]\|$\)\)' 'compat=0.10' - -echo -echo '=== Testing large refcount and L1 table ===' -echo - -# Create an image with an L1 table and a refcount table that each span twice the -# number of clusters which can be described by a single refblock; therefore, at -# least two refblocks cannot count their own refcounts because all the clusters -# they describe are part of the L1 table or refcount table. - -# One refblock can describe (with cluster_size=512 and refcount_bits=64) -# 512/8 = 64 clusters, therefore the L1 table should cover 128 clusters, which -# equals 128 * (512/8) = 8192 entries (actually, 8192 - 512/8 = 8129 would -# suffice, but it does not really matter). 8192 L2 tables can in turn describe -# 8192 * 512/8 = 524,288 clusters which cover a space of 256 MB. - -# Since with refcount_bits=64 every refcount block entry is 64 bits wide (just -# like the L2 table entries), the same calculation applies to the refcount table -# as well; the difference is that while for the L1 table the guest disk size is -# concerned, for the refcount table it is the image length that has to be at -# least 256 MB. We can achieve that by using preallocation=metadata for an image -# which has a guest disk size of 256 MB. - -IMGOPTS="$IMGOPTS,refcount_bits=64,cluster_size=512,preallocation=metadata" \ - _make_test_img 256M - -# We know for sure that the L1 and refcount tables do not overlap with any other -# structure because the metadata overlap checks would have caught that case. - -# Because qemu refuses to open qcow2 files whose L1 table does not cover the -# whole guest disk size, it is definitely large enough. On the other hand, to -# test whether the refcount table is large enough, we simply have to verify that -# indeed all the clusters are allocated, which is done by qemu-img check. - -# The final thing we need to test is whether the tables are actually covered by -# refcount blocks; since all clusters of the tables are referenced, we can use -# qemu-img check for that purpose, too. - -$QEMU_IMG check "$TEST_IMG" | \ - sed -e 's/^.* = \([0-9]\+\.[0-9]\+% allocated\).*\(clusters\)$/\1 \2/' \ - -e '/^Image end offset/d' - -# (Note that we cannot use _check_test_img because that function filters out the -# allocation status) - -# success, all done -echo '*** done' -rm -f $seq.full -status=0 |