From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pj1-f44.google.com (mail-pj1-f44.google.com [209.85.216.44]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 6AD6010E6 for ; Tue, 19 Dec 2023 01:12:35 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=kernel.dk Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=kernel.dk Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel-dk.20230601.gappssmtp.com header.i=@kernel-dk.20230601.gappssmtp.com header.b="Wg1P0xis" Received: by mail-pj1-f44.google.com with SMTP id 98e67ed59e1d1-28b6ec1cbaeso482930a91.1 for ; Mon, 18 Dec 2023 17:12:35 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel-dk.20230601.gappssmtp.com; s=20230601; t=1702948354; x=1703553154; darn=vger.kernel.org; h=content-transfer-encoding:in-reply-to:from:references:cc:to :content-language:subject:user-agent:mime-version:date:message-id :from:to:cc:subject:date:message-id:reply-to; bh=FyD8HfWQyf6LfBl1NPEudbU6H1HSAZ5Pn+m4oHtEKJw=; b=Wg1P0xishPnVdzKuwGifzDuMLmunfkLZUA6/WaSzuTbNBF/Ti4nm+saBAgUXHfTTn2 Ye59Ody1EOQP8hguHGTOdSz8hhlXQ9F5OwivN+58xvXxnUaxpJFZJKaibUXQDSUNOMKY wIyq/4FoAFmRK7qiE1aw6AGVfhV6gsyOlrHHwmvx8WV2ubr+NuX0Ke/BeHaWOkbs31iQ lLn8b5KF/KEvBEXB2f27fkBgJFeX/xQlK4rnos22rpD17C5QHyKukYBA415KYnHOR0ET TZ1ITABCYm63qSX6Nst2RjJK6LBCJNSKABA5P4q7vj/N1qYAk3CdJC4dDqQl0r1xRAI+ pSFw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1702948354; x=1703553154; h=content-transfer-encoding:in-reply-to:from:references:cc:to :content-language:subject:user-agent:mime-version:date:message-id :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=FyD8HfWQyf6LfBl1NPEudbU6H1HSAZ5Pn+m4oHtEKJw=; b=EZxhYBdpJngEs1V+jGVjHfwabD1UkGkJAxx7PT0KjVSXHI8ldJAUbeCXZ1XxeWLeYR 79h3Oy+QxIB51x8w8Y/ij3+jjzTesbnbAA5fErdbpWYOejQzhLi2OFWsFySEXASopIsG Bjv97rKSr72xIUN8fyU9CSWprcasO9zvEaUyI7V2beUFgzBhoJgsnQ4FjkZOR3cwoA5k jFakV+WUfQ2hXqluDT0LhVY+aqtbLKPKpq2OwL6BFhz3fFVQ8+/q+U2uH6OU+7wbaLAb PQt6SVheLnp2hJoAf025K225VxAUaA0JlxIcV62zAwdWOFlzKx4vot9mMGZ4Yet/e/NC IrIQ== X-Gm-Message-State: AOJu0YzR4o7lMpuxME4ReB1Fzk3IylgmvTgq3BlFZuA7zVyUAq7CRd1S 1gKojCh/gpY1r0Gl/TZosOOBug== X-Google-Smtp-Source: AGHT+IHzTKkhe0cRVbbtQbsADxYsCKZfTSYLFLvAalrCz0C8TVbXqipR5Q215SljZARR92Emk8hj0A== X-Received: by 2002:a05:6a20:7d9c:b0:18f:c77b:9fdd with SMTP id v28-20020a056a207d9c00b0018fc77b9fddmr40522857pzj.1.1702948354510; Mon, 18 Dec 2023 17:12:34 -0800 (PST) Received: from [192.168.1.150] ([198.8.77.194]) by smtp.gmail.com with ESMTPSA id 10-20020a63114a000000b005cd821a01d4sm4330736pgr.28.2023.12.18.17.12.33 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 18 Dec 2023 17:12:33 -0800 (PST) Message-ID: <6b3f9f28-1ddf-41dc-9f88-744cd9cd4b96@kernel.dk> Date: Mon, 18 Dec 2023 18:12:32 -0700 Precedence: bulk X-Mailing-List: linux-scsi@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v8 00/19] Pass data lifetime information to SCSI disk devices Content-Language: en-US To: Bart Van Assche , "Martin K . Petersen" Cc: linux-scsi@vger.kernel.org, linux-block@vger.kernel.org, linux-fsdevel@vger.kernel.org, Christoph Hellwig , Daejun Park , Kanchan Joshi References: <20231219000815.2739120-1-bvanassche@acm.org> From: Jens Axboe In-Reply-To: <20231219000815.2739120-1-bvanassche@acm.org> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit On 12/18/23 5:07 PM, Bart Van Assche wrote: > Hi Martin, > > UFS vendors need the data lifetime information to achieve good performance. > Providing data lifetime information to UFS devices can result in up to 40% > lower write amplification. Hence this patch series that adds support in F2FS > and also in the block layer for data lifetime information. The SCSI disk (sd) > driver is modified such that it passes write hint information to SCSI devices > via the GROUP NUMBER field. > > Please consider this patch series for the next merge window. Bart, can you please stop reposting so quickly, it achieves the opposite of what I suspect you are looking for. -- Jens Axboe