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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 3F29CD5E142 for ; Fri, 8 Nov 2024 07:12:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:In-Reply-To:Content-Type: MIME-Version:References:Message-ID:Subject:Cc:To:From:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=QpOFXUq5DjNbcaGxANLVbevJUtnPfsAjjxgbFQiQj/g=; b=gL2Zp8vQWnV3uA5TujwLsLM9ds 2QXn7pMUHGRjqo4tcXsEPaG74VGKuIN/vKtjfMISQeLe7DqqfmFP8rf7N4hYjt1BjqLJ0aXspv36X mon6Cd4wwgb03D+BAsH8W1BPFGP6Z4khhO6eiFn1w2eEyIDGfjl3j5j069MX2/H5Hp7bTtwdCUkjN ejTXl26A5n/2SzUXQ1qx1tf+hcDHJ0wKiGT6O/cQnBrbxKYZMM01SN2co2UMnyC933ycBDf6ivSfx ZkTUCsFrk4KdxPZer5iItQ74Lsgm5haTIjz1qYv8oDU4WTgj2lS/r9q2daoGDX4DAWhzJVl0NHE5x PDYgwO2g==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1t9JAu-00000009b6D-32zO; Fri, 08 Nov 2024 07:12:56 +0000 Received: from verein.lst.de ([213.95.11.211]) by bombadil.infradead.org with esmtps (Exim 4.98 #2 (Red Hat Linux)) id 1t9JAr-00000009b4y-2xip for linux-nvme@lists.infradead.org; Fri, 08 Nov 2024 07:12:55 +0000 Received: by verein.lst.de (Postfix, from userid 2407) id 0640768B05; Fri, 8 Nov 2024 08:12:50 +0100 (CET) Date: Fri, 8 Nov 2024 08:12:49 +0100 From: Christoph Hellwig To: Pavel Begunkov Cc: Keith Busch , Anuj Gupta , axboe@kernel.dk, hch@lst.de, martin.petersen@oracle.com, anuj1072538@gmail.com, brauner@kernel.org, jack@suse.cz, viro@zeniv.linux.org.uk, io-uring@vger.kernel.org, linux-nvme@lists.infradead.org, linux-block@vger.kernel.org, gost.dev@samsung.com, linux-scsi@vger.kernel.org, vishak.g@samsung.com, linux-fsdevel@vger.kernel.org, Kanchan Joshi Subject: Re: [PATCH v5 06/10] io_uring/rw: add support to send metadata along with read/write Message-ID: <20241108071249.GA9374@lst.de> References: <20241029162402.21400-1-anuj20.g@samsung.com> <20241029162402.21400-7-anuj20.g@samsung.com> <7995ffbd-7ec0-4f99-86a2-011bc3375228@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <7995ffbd-7ec0-4f99-86a2-011bc3375228@gmail.com> User-Agent: Mutt/1.5.17 (2007-11-01) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20241107_231253_907822_77F74740 X-CRM114-Status: GOOD ( 13.46 ) X-BeenThere: linux-nvme@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-nvme" Errors-To: linux-nvme-bounces+linux-nvme=archiver.kernel.org@lists.infradead.org On Thu, Nov 07, 2024 at 05:30:36PM +0000, Pavel Begunkov wrote: > It makes sense to implement write hints as a meta/attribute type, > but depends on whether it's supposed to be widely supported by > different file types vs it being a block specific feature, and if > SQEs have space for it. It make sense everywhere. Implementing it for direct I/O on regular files is mostly trivial and I'll do it once this series lands.