From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from 008.lax.mailroute.net (008.lax.mailroute.net [199.89.1.11]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 78EAB13848B; Mon, 20 May 2024 23:25:18 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=199.89.1.11 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1716247519; cv=none; b=bYXsyCAuZblid7TDgOvj1VcR0BGdnrSK2xKCSXkxA2h5KVmPvW31zEtlOec5Kf+QwogNx7bM/DIPQbgIT4nCwjN5CV8PckDNoyDQ01JPF6t/FBiUG8U4MWaZpG6TF9gUyWsiFL76seDA6s1BK7/Pd7quFgY4+9caX4ZZNXxvynA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1716247519; c=relaxed/simple; bh=ijJgz4CBGLhb/HVy0yww/S8sCF0i5ebWHafePyrDQfQ=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=ZZ7agw5cMe1O/WoDLQ6MzIV5ciGl9YPQtSB2uE3OcU8AaR2rczAmCI2NPuzxVBPiG0HIeiHpzwXlGjyds1dtYVLKKnpNnnNtHOleWGwEziXBpQphkrh+MfYghJ8k+OqVDBgwcmhlt6Q0fE3wBLZ3XOJRnVx2XhMWLbCnsRMUDAM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=acm.org; spf=pass smtp.mailfrom=acm.org; dkim=pass (2048-bit key) header.d=acm.org header.i=@acm.org header.b=1/EwDtHV; arc=none smtp.client-ip=199.89.1.11 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=acm.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=acm.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=acm.org header.i=@acm.org header.b="1/EwDtHV" Received: from localhost (localhost [127.0.0.1]) by 008.lax.mailroute.net (Postfix) with ESMTP id 4Vjtvx5QCMz6Cnk8t; Mon, 20 May 2024 23:25:17 +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=1716247511; x=1718839512; bh=ijJgz4CBGLhb/HVy0yww/S8s CF0i5ebWHafePyrDQfQ=; b=1/EwDtHV0WPmqtf8mplzj1czPHU6HOd2g2nDQaoh J166e8sXbsEPka3Wveo2nm0+5su3HFv//Qve0LRX9/AHRWrDeFlAqfmcFr/37feT NHzJVUf9VZxQE76xUSi0cEaT9pmXVrXbTKuc1Lwh5wTk3CX9LuuCE8CSSkpoVVpt BhrLRwGJ1cig5Jr6kZixW2G72zykgYIPibiIFxmsk6lcvlqUAENMezqYJ+OfAUxp FYtzfptMZcNSFCbbQD2xbhDLRNyYeRlcp7MQ/nw5ORwEv4qSGgjWTtRtn8zXFra0 0GdpBdqmsAh/XgGsKgSiovwE+jMaenvMaMg4dc2gL4DNRQ== 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 q3O6tu1vG9Fr; Mon, 20 May 2024 23:25:11 +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 4Vjtvh4pRCz6Cnk8s; Mon, 20 May 2024 23:25:04 +0000 (UTC) Message-ID: <017a9853-6e42-4250-9cfa-1d6ad5786556@acm.org> Date: Mon, 20 May 2024 16:25:02 -0700 Precedence: bulk X-Mailing-List: linux-fsdevel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v20 10/12] dm: Enable copy offload for dm-linear target 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> <20240520102033.9361-11-nj.shetty@samsung.com> Content-Language: en-US From: Bart Van Assche In-Reply-To: <20240520102033.9361-11-nj.shetty@samsung.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 5/20/24 03:20, Nitesh Shetty wrote: > Setting copy_offload_supported flag to enable offload. I think that the description of this patch should explain why it is safe to set the 'copy_offload_supported' flag for the dm-linear driver. Thanks, Bart.