Blame SOURCES/kvm-qemu-iotests-Discard-preallocated-zero-clusters.patch

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From f5484ed380fdff9c3d6895b72f4a05c312ee37ea Mon Sep 17 00:00:00 2001
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From: Max Reitz <mreitz@redhat.com>
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Date: Fri, 2 May 2014 16:06:21 +0200
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Subject: [PATCH 30/30] qemu-iotests: Discard preallocated zero clusters
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RH-Author: Max Reitz <mreitz@redhat.com>
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Message-id: <1399046781-16359-3-git-send-email-mreitz@redhat.com>
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Patchwork-id: 58645
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O-Subject: [RHEL-7.0 qemu-kvm PATCH 2/2] qemu-iotests: Discard preallocated zero clusters
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Bugzilla: 1110188
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RH-Acked-by: Kevin Wolf <kwolf@redhat.com>
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RH-Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
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RH-Acked-by: Jeffrey Cody <jcody@redhat.com>
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Add a new test case for discarding preallocated zero clusters; doing
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this should not result in any leaks.
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Signed-off-by: Max Reitz <mreitz@redhat.com>
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Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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(cherry picked from commit 975a93c082452db9aa1397a797ca8f13ba367393)
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Conflicts:
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	tests/qemu-iotests/group
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Signed-off-by: Max Reitz <mreitz@redhat.com>
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---
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 tests/qemu-iotests/066     | 63 ++++++++++++++++++++++++++++++++++++++++++++++
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 tests/qemu-iotests/066.out | 13 ++++++++++
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 tests/qemu-iotests/group   |  1 +
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 3 files changed, 77 insertions(+)
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 create mode 100755 tests/qemu-iotests/066
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 create mode 100644 tests/qemu-iotests/066.out
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Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
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---
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 tests/qemu-iotests/066     |   63 ++++++++++++++++++++++++++++++++++++++++++++
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 tests/qemu-iotests/066.out |   13 +++++++++
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 tests/qemu-iotests/group   |    1 +
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 3 files changed, 77 insertions(+), 0 deletions(-)
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 create mode 100755 tests/qemu-iotests/066
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 create mode 100644 tests/qemu-iotests/066.out
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diff --git a/tests/qemu-iotests/066 b/tests/qemu-iotests/066
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new file mode 100755
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index 0000000..1c2452b
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--- /dev/null
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+++ b/tests/qemu-iotests/066
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@@ -0,0 +1,63 @@
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+#!/bin/bash
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+#
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+# Test case for discarding preallocated zero clusters in qcow2
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+#
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+# Copyright (C) 2013 Red Hat, Inc.
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+#
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+# This program is free software; you can redistribute it and/or modify
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+# it under the terms of the GNU General Public License as published by
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+# the Free Software Foundation; either version 2 of the License, or
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+# (at your option) any later version.
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+#
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+# This program is distributed in the hope that it will be useful,
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+# but WITHOUT ANY WARRANTY; without even the implied warranty of
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+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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+# GNU General Public License for more details.
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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, see <http: www.gnu.org="" licenses=""/>.
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+#
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+
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+# creator
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+owner=mreitz@redhat.com
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+
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+seq="$(basename $0)"
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+echo "QA output created by $seq"
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+
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+here="$PWD"
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+tmp=/tmp/$$
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+status=1	# failure is the default!
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+
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+_cleanup()
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+{
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+	_cleanup_test_img
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+}
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+trap "_cleanup; exit \$status" 0 1 2 3 15
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+
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+# get standard environment, filters and checks
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+. ./common.rc
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+. ./common.filter
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+
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+# This tests qocw2-specific low-level functionality
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+_supported_fmt qcow2
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+_supported_proto generic
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+_supported_os Linux
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+
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+IMGOPTS="compat=1.1"
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+IMG_SIZE=64M
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+
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+echo
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+echo "=== Testing snapshotting an image with zero clusters ==="
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+echo
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+_make_test_img $IMG_SIZE
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+# Write some normal clusters, zero them (creating preallocated zero clusters)
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+# and discard those
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+$QEMU_IO -c "write 0 256k" -c "write -z 0 256k" -c "discard 0 256k" "$TEST_IMG" \
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+         | _filter_qemu_io
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+# Check the image (there shouldn't be any leaks)
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+_check_test_img
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+
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+# success, all done
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+echo "*** done"
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+rm -f $seq.full
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+status=0
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diff --git a/tests/qemu-iotests/066.out b/tests/qemu-iotests/066.out
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new file mode 100644
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index 0000000..9139780
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--- /dev/null
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+++ b/tests/qemu-iotests/066.out
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@@ -0,0 +1,13 @@
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+QA output created by 066
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+
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+=== Testing snapshotting an image with zero clusters ===
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+
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+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864 
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+wrote 262144/262144 bytes at offset 0
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+256 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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+wrote 262144/262144 bytes at offset 0
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+256 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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+discard 262144/262144 bytes at offset 0
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+256 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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+No errors were found on the image.
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+*** done
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diff --git a/tests/qemu-iotests/group b/tests/qemu-iotests/group
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index d6d4a7f..e588404 100644
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--- a/tests/qemu-iotests/group
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+++ b/tests/qemu-iotests/group
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@@ -68,6 +68,7 @@
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 063 rw auto
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 064 rw auto
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 065 rw auto
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+066 rw auto
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 067 rw auto
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 068 rw auto
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 070 rw auto
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-- 
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1.7.1
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