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 412C2C25B77 for ; Mon, 20 May 2024 22:54:38 +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:Content-Transfer-Encoding: Content-Type:In-Reply-To:From:References:Cc:To:Subject:MIME-Version:Date: Message-ID:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=ditZiWOn7hLJUcVL8ZGmOB5KFrac2puNeESvY7Sy76I=; b=GIs+pPK/M8QciKkLRCyNsd4aoE h9HyDEmtBDVU6ttvZva+XeTg1xlKDvmWa9P6jJEPz0qCqhE0mf8O47jgaJos/X0Mw324bshD6KIuO YbwsEcRhqis8p54Y0oAoIVbXce1EEqGrldpxNJ1GLKBNlO1KQvTL31dMQ9EAO3JW05GK1MfNIK+sq kChI0sCXSK8Usa89cJJHng+69SnHY8eo8iOrsMo17i/TDA5YY0mpozOd7+n16g2Cjz27LEdq6pYMI R2Z2uwwQ7kdMghH2g0LzOW9EQdQgV+sm9BMazP5IUR+2elvXc15cnDtQjNNlKVoaw7y8IDYZVO1vF ERrmE6Pg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1s9Bts-0000000Fjla-1Ue1; Mon, 20 May 2024 22:54:36 +0000 Received: from 008.lax.mailroute.net ([199.89.1.11]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1s9Bto-0000000FjkH-3HdB for linux-nvme@lists.infradead.org; Mon, 20 May 2024 22:54:34 +0000 Received: from localhost (localhost [127.0.0.1]) by 008.lax.mailroute.net (Postfix) with ESMTP id 4VjtDS1LFmz6Cnk8t; Mon, 20 May 2024 22:54:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=acm.org; h= content-transfer-encoding:content-type:content-type:in-reply-to :from:from:content-language:references:subject:subject :user-agent:mime-version:date:date:message-id:received:received; s=mr01; t=1716245664; x=1718837665; bh=ditZiWOn7hLJUcVL8ZGmOB5K Frac2puNeESvY7Sy76I=; b=N76ds2VdkoJmHd1jG09JVM0JcdkE4e8L/BR83/0u cH1cBSsqz73IdPb13CN2jkZ1TxKhGzjF7KpzQKYU4Jfzcf6sC/RDGQJ/BPLgh/mF UQ7mu0Rpcr8kINyu6mA3/XZL0KRNO/YLyH9Cqd8NNKmFVk9EAKPIz4PKqDyiljLs T6hX7k66/7ckCKqP+3Nd0t7czRyRhfDIjbCa2KoV+v6kmiY4bglg5iKxBJRJvy5V jBGqqWIweAoEnGOAcRt3yADoAdBj7+nghVxqqCh0rjL7BtrdX5VcA3Q9vfRLVXor 3Tao430X8PGm+xlT0M2i6oao9GfyD6XGmA0vS5cLE1KzFg== X-Virus-Scanned: by MailRoute Received: from 008.lax.mailroute.net ([127.0.0.1]) by localhost (008.lax [127.0.0.1]) (mroute_mailscanner, port 10029) with LMTP id hlmfe--IqVC7; Mon, 20 May 2024 22:54:24 +0000 (UTC) Received: from [100.96.154.26] (unknown [104.132.0.90]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: bvanassche@acm.org) by 008.lax.mailroute.net (Postfix) with ESMTPSA id 4VjtD956Wjz6Cnk8s; Mon, 20 May 2024 22:54:17 +0000 (UTC) Message-ID: <87f92553-04dc-48c9-be8b-f7fd4cd259b2@acm.org> Date: Mon, 20 May 2024 15:54:15 -0700 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v20 00/12] Implement copy offload support To: Nitesh Shetty , Jens Axboe , Jonathan Corbet , Alasdair Kergon , Mike Snitzer , Mikulas Patocka , Keith Busch , Christoph Hellwig , Sagi Grimberg , Chaitanya Kulkarni , Alexander Viro , Christian Brauner , Jan Kara Cc: martin.petersen@oracle.com, david@fromorbit.com, hare@suse.de, damien.lemoal@opensource.wdc.com, anuj20.g@samsung.com, joshi.k@samsung.com, nitheshshetty@gmail.com, gost.dev@samsung.com, linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, dm-devel@lists.linux.dev, linux-nvme@lists.infradead.org, linux-fsdevel@vger.kernel.org References: <20240520102033.9361-1-nj.shetty@samsung.com> Content-Language: en-US From: Bart Van Assche In-Reply-To: <20240520102033.9361-1-nj.shetty@samsung.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240520_155432_978023_29F39692 X-CRM114-Status: UNSURE ( 6.93 ) X-CRM114-Notice: Please train this message. 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 5/20/24 03:20, Nitesh Shetty wrote: > 4. This bio is merged with the request containing the destination info. bios with different operation types must never be merged. From attempt_merge(): if (req_op(req) != req_op(next)) return NULL; Thanks, Bart.