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=-5.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS autolearn=no 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 30630C433DB for ; Tue, 12 Jan 2021 10:24:20 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 0F22622CBE for ; Tue, 12 Jan 2021 10:24:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2406097AbhALKX7 (ORCPT ); Tue, 12 Jan 2021 05:23:59 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40434 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2406091AbhALKX6 (ORCPT ); Tue, 12 Jan 2021 05:23:58 -0500 Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:8b0:10b:1236::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 79EB8C061575; Tue, 12 Jan 2021 02:23:18 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=In-Reply-To:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=hNtqFD8/nqiSPk3hsMuqIwdqqr3vWdhwVU0SrPjpPJM=; b=F/q7BqwLVwyv7P3lWPVQq7VOVd e6NVgGooEHfK8Nkzo1q4J7V+uTvLdgAq/8gyAYqLagLgleLmTr1BDFbeXEmitcNO1+K1ddQqOpAh0 Jtn1AvaWQ5O2IJQ9A5bDS9M265BHO/6kQvhYMOqsF7zAM7XCJIoVcFYgNCCo2B5iyVNtVgXBY2QDv YM5cHs63NvuOXH9iZMIvExPKu3MGR1pF3k5VRWg1QpkrzAbkLW5yQ1dc8Wx2qz/kIsM2uYudFoTVV /AMiPBjn6UjjyhKDHQurphSSqnrRi1t0UzAbZbME70Y6v601jmkA0WmwKATTqKMSj15n2uI/Sn2YT LbaC6J1Q==; Received: from hch by casper.infradead.org with local (Exim 4.94 #2 (Red Hat Linux)) id 1kzGpL-004dQv-9i; Tue, 12 Jan 2021 10:23:03 +0000 Date: Tue, 12 Jan 2021 10:23:03 +0000 From: "hch@infradead.org" To: Johannes Thumshirn Cc: "hch@infradead.org" , Naohiro Aota , "linux-btrfs@vger.kernel.org" , "dsterba@suse.com" , "hare@suse.com" , "linux-fsdevel@vger.kernel.org" , Jens Axboe , "Darrick J. Wong" Subject: Re: [PATCH v11 00/40] btrfs: zoned block device support Message-ID: <20210112102303.GA1104499@infradead.org> References: <20201222133805.GA6778@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-SRS-Rewrite: SMTP reverse-path rewritten from by casper.infradead.org. See http://www.infradead.org/rpr.html Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org On Mon, Jan 11, 2021 at 10:17:53AM +0000, Johannes Thumshirn wrote: > On 22/12/2020 14:40, Christoph Hellwig wrote: > > I just did a very quick look, but didn't see anything (based on the > > subjects) that deals with ITER_BVEC direct I/O. Is the support for that > > hidden somewhere? > > I couldn't reproduce the problem you reported and asked for a reproducer. Probably > the mail got lost somewhere. > > Do you have a reproducer for me that triggers the problem? fio with --ioengine=io_uring > didn't do the job on my end. I've only found this by auditing the code. But the reproducer should be io_uring with fixed buffers, alternatively using the nvme target driver with a btrfs file as the backend.