From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.5 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id B106BC433E0 for ; Wed, 17 Jun 2020 11:48:05 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 7E7752098B for ; Wed, 17 Jun 2020 11:48:05 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="bPOcHuVy" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 7E7752098B Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:56256 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jlWY0-0005XW-KL for qemu-devel@archiver.kernel.org; Wed, 17 Jun 2020 07:48:04 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:45560) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1jlWX2-0004vE-Ui for qemu-devel@nongnu.org; Wed, 17 Jun 2020 07:47:04 -0400 Received: from us-smtp-delivery-1.mimecast.com ([207.211.31.120]:54092 helo=us-smtp-1.mimecast.com) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.90_1) (envelope-from ) id 1jlWX0-0003lt-B0 for qemu-devel@nongnu.org; Wed, 17 Jun 2020 07:47:04 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1592394419; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=wwo5IqD8QQ9B1U3m4S59M1NmkW9u0Qvueq15vDmfLdc=; b=bPOcHuVyT830rWBD6OWeWbklzC4D2QbDiYeUOP4NuGoXs2ugK7Sqpw7MUnBohc0AuxGlMm bUwyBJVraQwCACnmj3UhL5RDSMtBppdgN7fkp99uFDBaiucT18znx51DPsELkVasCbjkoe a5QlCg8mgSIdHraDgt4whp9J7JkLobE= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-473-lQCKyDQLPcGz2gZU7BOwvw-1; Wed, 17 Jun 2020 07:46:48 -0400 X-MC-Unique: lQCKyDQLPcGz2gZU7BOwvw-1 Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.phx2.redhat.com [10.5.11.13]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id A69B080330C; Wed, 17 Jun 2020 11:46:47 +0000 (UTC) Received: from starship (unknown [10.35.206.176]) by smtp.corp.redhat.com (Postfix) with ESMTP id 30A9D7CCCA; Wed, 17 Jun 2020 11:46:45 +0000 (UTC) Message-ID: <4f74d8201f7b164a9d7139c3562c0bb8f5e60033.camel@redhat.com> Subject: Re: [PATCH 1/2] iotests: Make _filter_img_create more active From: Maxim Levitsky To: Max Reitz , qemu-block@nongnu.org Date: Wed, 17 Jun 2020 14:46:44 +0300 In-Reply-To: <20200616131756.1073438-2-mreitz@redhat.com> References: <20200616131756.1073438-1-mreitz@redhat.com> <20200616131756.1073438-2-mreitz@redhat.com> User-Agent: Evolution 3.34.4 (3.34.4-1.fc31) MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit Received-SPF: pass client-ip=207.211.31.120; envelope-from=mlevitsk@redhat.com; helo=us-smtp-1.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/06/17 01:42:04 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -30 X-Spam_score: -3.1 X-Spam_bar: --- X-Spam_report: (-3.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-1, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H3=-0.01, RCVD_IN_MSPIKE_WL=-0.01, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=_AUTOLEARN X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Kevin Wolf , qemu-devel@nongnu.org Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" On Tue, 2020-06-16 at 15:17 +0200, Max Reitz wrote: > Right now, _filter_img_create just filters out everything that looks > format-dependent, and applies some filename filters. That means that we > have to add another filter line every time some format gets a new > creation option. This can be avoided by instead discarding everything > and just keeping what we know is format-independent (format, size, > backing file, encryption information[1], preallocation) or just > interesting to have in the reference output (external data file path). > > Furthermore, we probably want to sort these options. Format drivers are > not required to define them in any specific order, so the output is > effectively random (although this has never bothered us until now). We > need a specific order for our reference outputs, though. Unfortunately, > just using a plain "sort" would change a lot of existing reference > outputs, so we have to pre-filter the option keys to keep our existing > order (fmt, size, backing*, data, encryption info, preallocation). > > [1] Actually, the only thing that is really important is whether > encryption is enabled or not. A patch by Maxim thus removes all > other "encrypt.*" options from the output: > https://lists.nongnu.org/archive/html/qemu-block/2020-06/msg00339.html > But that patch needs to come later so we can get away with changing > as few reference outputs in this patch here as possible. > > Signed-off-by: Max Reitz > --- > tests/qemu-iotests/112.out | 2 +- > tests/qemu-iotests/153 | 9 ++- > tests/qemu-iotests/common.filter | 100 +++++++++++++++++++++++-------- > 3 files changed, 81 insertions(+), 30 deletions(-) > > diff --git a/tests/qemu-iotests/112.out b/tests/qemu-iotests/112.out > index ae0318cabe..182655dbf6 100644 > --- a/tests/qemu-iotests/112.out > +++ b/tests/qemu-iotests/112.out > @@ -5,7 +5,7 @@ QA output created by 112 > qemu-img: TEST_DIR/t.IMGFMT: Refcount width must be a power of two and may not exceed 64 bits > Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864 > qemu-img: TEST_DIR/t.IMGFMT: Refcount width must be a power of two and may not exceed 64 bits > -Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864 refcount_bits=-1 > +Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864 > qemu-img: TEST_DIR/t.IMGFMT: Refcount width must be a power of two and may not exceed 64 bits > Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864 > qemu-img: TEST_DIR/t.IMGFMT: Refcount width must be a power of two and may not exceed 64 bits > diff --git a/tests/qemu-iotests/153 b/tests/qemu-iotests/153 > index cf961d3609..11e3d28841 100755 > --- a/tests/qemu-iotests/153 > +++ b/tests/qemu-iotests/153 > @@ -167,11 +167,10 @@ done > > echo > echo "== Creating ${TEST_IMG}.[abc] ==" | _filter_testdir > -( > - $QEMU_IMG create -f qcow2 "${TEST_IMG}.a" -b "${TEST_IMG}" > - $QEMU_IMG create -f qcow2 "${TEST_IMG}.b" -b "${TEST_IMG}" > - $QEMU_IMG create -f qcow2 "${TEST_IMG}.c" -b "${TEST_IMG}.b" > -) | _filter_img_create > +$QEMU_IMG create -f qcow2 "${TEST_IMG}.a" -b "${TEST_IMG}" | _filter_img_create > +$QEMU_IMG create -f qcow2 "${TEST_IMG}.b" -b "${TEST_IMG}" | _filter_img_create > +$QEMU_IMG create -f qcow2 "${TEST_IMG}.c" -b "${TEST_IMG}.b" \ > + | _filter_img_create > > echo > echo "== Two devices sharing the same file in backing chain ==" I guess this is done because now the filter expectes only a single qemu-img output. IMHO this is better anyway. > diff --git a/tests/qemu-iotests/common.filter b/tests/qemu-iotests/common.filter > index 03e4f71808..f104ad7a9b 100644 > --- a/tests/qemu-iotests/common.filter > +++ b/tests/qemu-iotests/common.filter > @@ -122,38 +122,90 @@ _filter_actual_image_size() > # replace driver-specific options in the "Formatting..." line > _filter_img_create() > { > - data_file_filter=() > - if data_file=$(_get_data_file "$TEST_IMG"); then > - data_file_filter=(-e "s# data_file=$data_file##") > + # Keep QMP output unchanged > + qmp_pre='' > + qmp_post='' > + to_filter='' > + > + while read -r line; do > + if echo "$line" | grep -q '^{.*}$'; then > + if [ -z "$to_filter" ]; then > + # Use $'\n' so the newline is not dropped on variable > + # expansion > + qmp_pre="$qmp_pre$line"$'\n' > + else > + qmp_post="$qmp_post$line"$'\n' > + fi > + else > + to_filter="$to_filter$line"$'\n' > + fi > + done The above code basically assumes that qmp output starts with '{' and ends with '}' which I guess is fair, and then it assumes that we can have set of qmp commands prior to qemu-img line and another set of qmp commands after it. To me it feels like we should have another filter for that, since qemu-img itself doesn't use qmp. Which test needs it? > + > + readarray -td '' formatting_line < \ > + <(echo "$to_filter" | sed -e 's/, fmt=/\x0/') OK, took me a while to understand what this does, but looks OK. > + > + filename_part=${formatting_line[0]} > + if [ -n "${formatting_line[1]}" ]; then > + options="fmt=${formatting_line[1]}" > + else > + options='' > fi > OK. > > - $SED "${data_file_filter[@]}" \ > + # Set grep_data_file to '\|data_file' to keep it; make it empty > + # to drop it. > + # We want to drop it if it is part of the global $IMGOPTS, and we > + # want to keep it otherwise (if the test specifically wants to > + # test data files). > + grep_data_file='\|data_file' > + if _get_data_file "$TEST_IMG" > /dev/null; then > + grep_data_file='' > + fi > + > + filename_filters=( > -e "s#$REMOTE_TEST_DIR#TEST_DIR#g" \ > -e "s#$IMGPROTO:$TEST_DIR#TEST_DIR#g" \ > -e "s#$TEST_DIR#TEST_DIR#g" \ > -e "s#$SOCK_DIR#SOCK_DIR#g" \ > -e "s#$IMGFMT#IMGFMT#g" \ > -e 's#nbd:127.0.0.1:[0-9]\\+#TEST_DIR/t.IMGFMT#g' \ > - -e 's#nbd+unix:///\??socket=SOCK_DIR/nbd#TEST_DIR/t.IMGFMT#g' \ > - -e "s# encryption=off##g" \ > - -e "s# cluster_size=[0-9]\\+##g" \ > - -e "s# table_size=[0-9]\\+##g" \ > - -e "s# compat=[^ ]*##g" \ > - -e "s# compat6=\\(on\\|off\\)##g" \ > - -e "s# static=\\(on\\|off\\)##g" \ > - -e "s# zeroed_grain=\\(on\\|off\\)##g" \ > - -e "s# subformat=[^ ]*##g" \ > - -e "s# adapter_type=[^ ]*##g" \ > - -e "s# hwversion=[^ ]*##g" \ > - -e "s# lazy_refcounts=\\(on\\|off\\)##g" \ > - -e "s# block_size=[0-9]\\+##g" \ > - -e "s# block_state_zero=\\(on\\|off\\)##g" \ > - -e "s# log_size=[0-9]\\+##g" \ > - -e "s# refcount_bits=[0-9]\\+##g" \ > - -e "s# key-secret=[a-zA-Z0-9]\\+##g" \ > - -e "s# iter-time=[0-9]\\+##g" \ > - -e "s# force_size=\\(on\\|off\\)##g" \ > - -e "s# compression_type=[a-zA-Z0-9]\\+##g" > + -e 's#nbd+unix:///\??socket=SOCK_DIR/nbd#TEST_DIR/t.IMGFMT#g' > + ) > + > + filename_part=$(echo "$filename_part" | $SED "${filename_filters[@]}") Looks good as well. > + > + # Break the option line before each option (preserving pre-existing > + # line breaks by replacing them by \0 and restoring them at the end), > + # then filter out the options we want to keep and sort them according > + # to some order that all block drivers used at the time of writing > + # this function. > + options=$( > + echo "$options" \ > + | tr '\n' '\0' \ > + | sed -e 's/\x0$//' -e 's/ \([a-z0-9_.-]*\)=/\n\1=/g' \ You sometimes use $SED and sometimes sed. Is this intentional? > + | grep -ae "^\(fmt\\|size\\|backing\\|preallocation\\|encrypt$grep_data_file\\)" \ > + | $SED "${filename_filters[@]}" \ > + -e 's/^\(fmt\)/0-\1/' \ > + -e 's/^\(size\)/1-\1/' \ > + -e 's/^\(backing\)/2-\1/' \ > + -e 's/^\(data_file\)/3-\1/' \ > + -e 's/^\(encryption\)/4-\1/' \ > + -e 's/^\(encrypt\.format\)/5-\1/' \ > + -e 's/^\(encrypt\.key-secret\)/6-\1/' \ > + -e 's/^\(encrypt\.iter-time\)/7-\1/' \ > + -e 's/^\(preallocation\)/8-\1/' \ All right, I understand this now, but do we have to do this? Maybe it is better to just update the outputs once to avoid keeping the custom sort order? > + | sort \ > + | $SED -e 's/^[0-9]-//' \ > + | tr '\n\0' ' \n' \ > + | $SED -e 's/^ *$//' -e 's/ *$//' > + ) For the above bash pipeline overall: It was hard to decipher :-), but I must admit I learned something from it. > + > + echo -n "$qmp_pre" > + if [ -n "$options" ]; then > + echo "$filename_part, $options" > + elif [ -n "$filename_part" ]; then > + echo "$filename_part" > + fi > + echo -n "$qmp_post" > } > > _filter_img_create_size() Overall I like the idea of this patch. Best regards, Maxim Levitsky