From patchwork Wed Oct 4 02:00:48 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Eric Blake X-Patchwork-Id: 821135 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (mailfrom) smtp.mailfrom=nongnu.org (client-ip=2001:4830:134:3::11; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Received: from lists.gnu.org (lists.gnu.org [IPv6:2001:4830:134:3::11]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 3y6KNC59ltz9s4q for ; Wed, 4 Oct 2017 13:19:23 +1100 (AEDT) Received: from localhost ([::1]:32881 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dzZHN-0006kx-Rw for incoming@patchwork.ozlabs.org; Tue, 03 Oct 2017 22:19:21 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:34715) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dzZ0o-0001gF-Jz for qemu-devel@nongnu.org; Tue, 03 Oct 2017 22:02:15 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1dzZ0n-0006aS-D1 for qemu-devel@nongnu.org; Tue, 03 Oct 2017 22:02:14 -0400 Received: from mx1.redhat.com ([209.132.183.28]:42864) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1dzZ0k-0006Wf-DS; Tue, 03 Oct 2017 22:02:10 -0400 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.phx2.redhat.com [10.5.11.15]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 3E7287EA9D; Wed, 4 Oct 2017 02:02:09 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mx1.redhat.com 3E7287EA9D Authentication-Results: ext-mx04.extmail.prod.ext.phx2.redhat.com; dmarc=none (p=none dis=none) header.from=redhat.com Authentication-Results: ext-mx04.extmail.prod.ext.phx2.redhat.com; spf=fail smtp.mailfrom=eblake@redhat.com Received: from red.redhat.com (ovpn-120-2.rdu2.redhat.com [10.10.120.2]) by smtp.corp.redhat.com (Postfix) with ESMTP id 3EE1A61F2F; Wed, 4 Oct 2017 02:02:08 +0000 (UTC) From: Eric Blake To: qemu-devel@nongnu.org Date: Tue, 3 Oct 2017 21:00:48 -0500 Message-Id: <20171004020048.26379-24-eblake@redhat.com> In-Reply-To: <20171004020048.26379-1-eblake@redhat.com> References: <20171004020048.26379-1-eblake@redhat.com> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.15 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.28]); Wed, 04 Oct 2017 02:02:09 +0000 (UTC) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 209.132.183.28 Subject: [Qemu-devel] [PATCH v5 23/23] qemu-io: Relax 'alloc' now that block-status doesn't assert 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: kwolf@redhat.com, famz@redhat.com, jsnow@redhat.com, qemu-block@nongnu.org, Max Reitz Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" Previously, the alloc command required that input parameters be sector-aligned and clamped to 32 bits, because the underlying bdrv_is_allocated used a 32-bit parameter and asserted aligned inputs. But now that we have fixed block status to report a 64-bit bytes value, and to properly round requests on behalf of guests, we can pass any values, and can use qemu-io to add coverage that our rounding is correct regardless of the guest alignment constraints. Update iotest 177 to intentionally probe block status at unaligned boundaries as well as with a bytes value that does not map to 32-bit sectors, which also required tweaking the image prep to leave an unallocated portion to the image under test. Signed-off-by: Eric Blake --- v3: also test huge bytes value, R-b dropped v2: new patch --- qemu-io-cmds.c | 13 ------------- tests/qemu-iotests/177 | 12 ++++++++++-- tests/qemu-iotests/177.out | 19 ++++++++++++++----- 3 files changed, 24 insertions(+), 20 deletions(-) diff --git a/qemu-io-cmds.c b/qemu-io-cmds.c index 3727fb43f3..de8e3de726 100644 --- a/qemu-io-cmds.c +++ b/qemu-io-cmds.c @@ -1769,10 +1769,6 @@ static int alloc_f(BlockBackend *blk, int argc, char **argv) if (offset < 0) { print_cvtnum_err(offset, argv[1]); return 0; - } else if (!QEMU_IS_ALIGNED(offset, BDRV_SECTOR_SIZE)) { - printf("%" PRId64 " is not a sector-aligned value for 'offset'\n", - offset); - return 0; } if (argc == 3) { @@ -1780,19 +1776,10 @@ static int alloc_f(BlockBackend *blk, int argc, char **argv) if (count < 0) { print_cvtnum_err(count, argv[2]); return 0; - } else if (count > INT_MAX * BDRV_SECTOR_SIZE) { - printf("length argument cannot exceed %llu, given %s\n", - INT_MAX * BDRV_SECTOR_SIZE, argv[2]); - return 0; } } else { count = BDRV_SECTOR_SIZE; } - if (!QEMU_IS_ALIGNED(count, BDRV_SECTOR_SIZE)) { - printf("%" PRId64 " is not a sector-aligned value for 'count'\n", - count); - return 0; - } remaining = count; sum_alloc = 0; diff --git a/tests/qemu-iotests/177 b/tests/qemu-iotests/177 index f8ed8fb86b..28990977f1 100755 --- a/tests/qemu-iotests/177 +++ b/tests/qemu-iotests/177 @@ -51,7 +51,7 @@ echo "== setting up files ==" TEST_IMG="$TEST_IMG.base" _make_test_img $size $QEMU_IO -c "write -P 11 0 $size" "$TEST_IMG.base" | _filter_qemu_io _make_test_img -b "$TEST_IMG.base" -$QEMU_IO -c "write -P 22 0 $size" "$TEST_IMG" | _filter_qemu_io +$QEMU_IO -c "write -P 22 0 110M" "$TEST_IMG" | _filter_qemu_io # Limited to 64k max-transfer echo @@ -82,6 +82,13 @@ $QEMU_IO -c "open -o $options,$limits blkdebug::$TEST_IMG" \ -c "discard 80000001 30M" | _filter_qemu_io echo +echo "== block status smaller than alignment ==" +limits=align=4k +$QEMU_IO -c "open -o $options,$limits blkdebug::$TEST_IMG" \ + -c "alloc 1 1" -c "alloc 0x6dffff0 1000" -c "alloc 127m 5P" \ + -c map | _filter_qemu_io + +echo echo "== verify image content ==" function verify_io() @@ -103,7 +110,8 @@ function verify_io() echo read -P 0 32M 32M echo read -P 22 64M 13M echo read -P $discarded 77M 29M - echo read -P 22 106M 22M + echo read -P 22 106M 4M + echo read -P 11 110M 18M } verify_io | $QEMU_IO -r "$TEST_IMG" | _filter_qemu_io diff --git a/tests/qemu-iotests/177.out b/tests/qemu-iotests/177.out index 43a777836c..f788b55e20 100644 --- a/tests/qemu-iotests/177.out +++ b/tests/qemu-iotests/177.out @@ -5,8 +5,8 @@ Formatting 'TEST_DIR/t.IMGFMT.base', fmt=IMGFMT size=134217728 wrote 134217728/134217728 bytes at offset 0 128 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134217728 backing_file=TEST_DIR/t.IMGFMT.base -wrote 134217728/134217728 bytes at offset 0 -128 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) +wrote 115343360/115343360 bytes at offset 0 +110 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) == constrained alignment and max-transfer == wrote 131072/131072 bytes at offset 1000 @@ -26,6 +26,13 @@ wrote 33554432/33554432 bytes at offset 33554432 discard 31457280/31457280 bytes at offset 80000001 30 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) +== block status smaller than alignment == +1/1 bytes allocated at offset 1 bytes +16/1000 bytes allocated at offset 110 MiB +0/1048576 bytes allocated at offset 127 MiB +110 MiB (0x6e00000) bytes allocated at offset 0 bytes (0x0) +18 MiB (0x1200000) bytes not allocated at offset 110 MiB (0x6e00000) + == verify image content == read 1000/1000 bytes at offset 0 1000 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) @@ -43,12 +50,14 @@ read 13631488/13631488 bytes at offset 67108864 13 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) read 30408704/30408704 bytes at offset 80740352 29 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) -read 23068672/23068672 bytes at offset 111149056 -22 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) +read 4194304/4194304 bytes at offset 111149056 +4 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) +read 18874368/18874368 bytes at offset 115343360 +18 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) Offset Length File 0 0x800000 TEST_DIR/t.IMGFMT 0x900000 0x2400000 TEST_DIR/t.IMGFMT 0x3c00000 0x1100000 TEST_DIR/t.IMGFMT -0x6a00000 0x1600000 TEST_DIR/t.IMGFMT +0x6a00000 0x400000 TEST_DIR/t.IMGFMT No errors were found on the image. *** done