From patchwork Wed Feb 28 13:13:15 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Max Reitz X-Patchwork-Id: 10247497 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id E7C5C60362 for ; Wed, 28 Feb 2018 13:14:48 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id D8EB22881C for ; Wed, 28 Feb 2018 13:14:48 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id CA95928D31; Wed, 28 Feb 2018 13:14:48 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 761262881C for ; Wed, 28 Feb 2018 13:14:48 +0000 (UTC) Received: from localhost ([::1]:44230 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1er1ZH-0001AR-MJ for patchwork-qemu-devel@patchwork.kernel.org; Wed, 28 Feb 2018 08:14:47 -0500 Received: from eggs.gnu.org ([2001:4830:134:3::10]:45456) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1er1Y5-0000Fu-L9 for qemu-devel@nongnu.org; Wed, 28 Feb 2018 08:13:34 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1er1Y4-0001vi-Na for qemu-devel@nongnu.org; Wed, 28 Feb 2018 08:13:33 -0500 Received: from mx3-rdu2.redhat.com ([66.187.233.73]:38164 helo=mx1.redhat.com) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1er1Xy-0001tt-El; Wed, 28 Feb 2018 08:13:26 -0500 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.rdu2.redhat.com [10.11.54.6]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 58C608182D2E; Wed, 28 Feb 2018 13:13:25 +0000 (UTC) Received: from localhost (unknown [10.40.205.159]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 0122020A846E; Wed, 28 Feb 2018 13:13:24 +0000 (UTC) From: Max Reitz To: qemu-block@nongnu.org Date: Wed, 28 Feb 2018 14:13:15 +0100 Message-Id: <20180228131315.30194-3-mreitz@redhat.com> In-Reply-To: <20180228131315.30194-1-mreitz@redhat.com> References: <20180228131315.30194-1-mreitz@redhat.com> X-Scanned-By: MIMEDefang 2.78 on 10.11.54.6 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.11.55.8]); Wed, 28 Feb 2018 13:13:25 +0000 (UTC) X-Greylist: inspected by milter-greylist-4.5.16 (mx1.redhat.com [10.11.55.8]); Wed, 28 Feb 2018 13:13:25 +0000 (UTC) for IP:'10.11.54.6' DOMAIN:'int-mx06.intmail.prod.int.rdu2.redhat.com' HELO:'smtp.corp.redhat.com' FROM:'mreitz@redhat.com' RCPT:'' X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 66.187.233.73 Subject: [Qemu-devel] [PATCH 2/2] iotests: Test preallocated truncate of 2G image X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Kevin Wolf , qemu-stable@nongnu.org, qemu-devel@nongnu.org, Max Reitz Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Virus-Scanned: ClamAV using ClamSMTP Signed-off-by: Max Reitz Reviewed-by: Daniel P. Berrangé --- tests/qemu-iotests/106 | 24 ++++++++++++++++++++++++ tests/qemu-iotests/106.out | 10 ++++++++++ 2 files changed, 34 insertions(+) diff --git a/tests/qemu-iotests/106 b/tests/qemu-iotests/106 index bfe71f4e60..5e51f88a78 100755 --- a/tests/qemu-iotests/106 +++ b/tests/qemu-iotests/106 @@ -86,6 +86,30 @@ for growth_mode in falloc full off; do $QEMU_IMG resize -f "$IMGFMT" --shrink --preallocation=$growth_mode "$TEST_IMG" -${GROWTH_SIZE}K done +echo +echo '=== Testing image growth on 2G empty image ===' + +for growth_mode in falloc full; do + echo + echo "--- growth_mode=$growth_mode ---" + + # Maybe we want to do an lseek() to the end of the file before the + # preallocation; if the file has a length of 2 GB, that would + # return an integer that overflows to negative when put into a + # plain int. We should use the correct type for the result, and + # this tests we do. + + _make_test_img 2G + $QEMU_IMG resize -f "$IMGFMT" --preallocation=$growth_mode "$TEST_IMG" +${GROWTH_SIZE}K + + actual_size=$($QEMU_IMG info -f "$IMGFMT" "$TEST_IMG" | grep 'disk size') + actual_size=$(echo "$actual_size" | sed -e 's/^[^0-9]*\([0-9]\+\).*$/\1/') + + if [ $actual_size -lt $GROWTH_SIZE ]; then + echo "ERROR: Image should have at least ${GROWTH_SIZE}K, but has ${actual_size}K" + fi +done + # success, all done echo '*** done' rm -f $seq.full diff --git a/tests/qemu-iotests/106.out b/tests/qemu-iotests/106.out index 0a42312301..c459957660 100644 --- a/tests/qemu-iotests/106.out +++ b/tests/qemu-iotests/106.out @@ -47,4 +47,14 @@ qemu-img: Preallocation can only be used for growing images --- growth_mode=off --- Image resized. + +=== Testing image growth on 2G empty image === + +--- growth_mode=falloc --- +Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=2147483648 +Image resized. + +--- growth_mode=full --- +Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=2147483648 +Image resized. *** done