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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 69C81C3DA6F for ; Wed, 23 Aug 2023 22:19:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234289AbjHWWS7 (ORCPT ); Wed, 23 Aug 2023 18:18:59 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49842 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238647AbjHWWS5 (ORCPT ); Wed, 23 Aug 2023 18:18:57 -0400 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 989A7170A for ; Wed, 23 Aug 2023 15:18:09 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1692829088; 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: in-reply-to:in-reply-to:references:references; bh=pWVOMuusMCphmap0mOAuIAaDgbkcfgJgrkxqF9JempU=; b=IiE51FqxVzW4lb+Pv8vntXm9ylJFth1q5rHw77s5TM4pn50aEW7rurAyh+SEtkECkUELEQ iIGnATmk2KHgcsL3QmLdOWT/NY8bm+iUXoZBQVT3cXt7eeNLCrtGS3jqpY1SjJpofbSzAB bBTCqrmFS+pxIpyuDSD6Vt3ZNTWTLfs= Received: from mimecast-mx02.redhat.com (66.187.233.73 [66.187.233.73]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-3-8dvF3PkiOtagcpC79dbQcw-1; Wed, 23 Aug 2023 18:18:05 -0400 X-MC-Unique: 8dvF3PkiOtagcpC79dbQcw-1 Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.rdu2.redhat.com [10.11.54.4]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 9B5A91C068CD; Wed, 23 Aug 2023 22:18:04 +0000 (UTC) Received: from redhat.com (unknown [10.22.16.107]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 650A52026D76; Wed, 23 Aug 2023 22:18:04 +0000 (UTC) Date: Wed, 23 Aug 2023 17:18:02 -0500 From: Bill O'Donnell To: "Darrick J. Wong" Cc: fstests@vger.kernel.org, quwenruo@cn.fujitsu.com Subject: Re: [PATCH] fstests: generic/352 should accomodate other pwrite behaviors Message-ID: References: <20230823154350.18829-1-bodonnel@redhat.com> <20230823164641.GA11251@frogsfrogsfrogs> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20230823164641.GA11251@frogsfrogsfrogs> X-Scanned-By: MIMEDefang 3.1 on 10.11.54.4 Precedence: bulk List-ID: X-Mailing-List: fstests@vger.kernel.org On Wed, Aug 23, 2023 at 09:46:41AM -0700, Darrick J. Wong wrote: > On Wed, Aug 23, 2023 at 10:43:50AM -0500, Bill O'Donnell wrote: > > xfs_io pwrite issues a series of block size writes, but there is no guarantee > > that the resulting extent(s) will be singular or contiguous. This behavior is > > acceptable, but the test is flawed in that it expects a single extent for a > > pwrite. > > > > Modify test to accept any layout for the reflinked logical range. > > > > Signed-off-by: Bill O'Donnell > > --- > > tests/generic/352 | 16 +++++++++++----- > > tests/generic/352.out | 2 -- > > 2 files changed, 11 insertions(+), 7 deletions(-) > > > > diff --git a/tests/generic/352 b/tests/generic/352 > > index 52ec4850..c4ee8a44 100755 > > --- a/tests/generic/352 > > +++ b/tests/generic/352 > > @@ -48,19 +48,25 @@ _pwrite_byte 0xcdcdcdcd 0 $blocksize $file | _filter_xfs_io > > # use reflink to create the rest of the file, whose all extents are all > > # pointing to the first extent > > for i in $(seq 1 $nr); do > > - _reflink_range $file 0 $file $(($i * $blocksize)) $blocksize > /dev/null > > + _reflink_range $file 0 $file $(($i * $blocksize)) $blocksize > $tmp1.out > > $tmp1 isnt defined anywhere. > > > done > > > > # then call fiemap on that file to test both the shared flag and if > > # reserved extent mapping search will cause soft lockup > > -$XFS_IO_PROG -c "fiemap -v" $file | _filter_fiemap_flags > $tmp.out > > -cat $tmp.out >> $seqres.full > > +$XFS_IO_PROG -c "fiemap -v" $file | _filter_fiemap_flags > $tmp2.out > > +cat $tmp2.out >> $seqres.full > > Nor is $tmp2 > > > > > # refact the $LOAD_FACTOR to 1 to match the golden output > > sed -i -e "s/$(($last_extent - 1))/$(($orig_last_extent - 1))/" \ > > -e "s/$last_extent/$orig_last_extent/" \ > > - -e "s/$end/$orig_end/" $tmp.out > > -cat $tmp.out > > + -e "s/$end/$orig_end/" $tmp2.out > > + > > +cat $tmp1.out > tmp.1 > > +cat $tmp2.out > tmp.2 > > Not sure why you didn't make the _reflink_range and the fiemap above > output to $tmp.out1 and $tmp.out2, respectively. If you had, then the > default _cleanup would delete $tmp.* automatically... > > > + > > +diff tmp.[12] > > +rm tmp.1 > > +rm tmp.2 > > ...and the rm here wouldn't be necessary. > > Ok. Nitpicking over. Moving on to the weirder design questions of the > original test: > > [add original test author to cc] Emails to quwenruo@cn.fujitsu.com seem to be undeliverable. Maybe Joseph would know what btrfs intent was? -Bill > > I don't know why $blocksize is set to 128k above. If this test needs to > guarantee that there would only be *one* extent (and the golden output > implies this as you note), then it should have been written to say: > > blocksize=$(_get_file_block_size $SCRATCH_MNT) > > But I don't know if the "btrfs soft lock up and return wrong shared > flag" behavior required sharing a (probably multi-block) 128k range, or > if that was simply what the author selected because it reproduced the > problem. > > > > > # success, all done > > status=0 > > diff --git a/tests/generic/352.out b/tests/generic/352.out > > index 4ff66c21..ad90ae0d 100644 > > --- a/tests/generic/352.out > > +++ b/tests/generic/352.out > > @@ -1,5 +1,3 @@ > > QA output created by 352 > > wrote 131072/131072 bytes at offset 0 > > XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) > > -0: [0..2097151]: shared > > -1: [2097152..2097407]: shared|last > > Also I suspect from the test description that the goal here was to > detect the golden output failing because the shared flag does not get > reported correctly. > > --D > > -- > > 2.41.0 > > >