From patchwork Thu Oct 5 19:40:46 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bart Van Assche X-Patchwork-Id: 13410675 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5FE66E92734 for ; Thu, 5 Oct 2023 19:41:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229786AbjJETli (ORCPT ); Thu, 5 Oct 2023 15:41:38 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44988 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229601AbjJETlh (ORCPT ); Thu, 5 Oct 2023 15:41:37 -0400 Received: from mail-pl1-f180.google.com (mail-pl1-f180.google.com [209.85.214.180]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 63E8ECE; Thu, 5 Oct 2023 12:41:36 -0700 (PDT) Received: by mail-pl1-f180.google.com with SMTP id d9443c01a7336-1c88b467ef8so4866195ad.0; Thu, 05 Oct 2023 12:41:36 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1696534896; x=1697139696; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=8PNVxsJWMiXLmTm8xBAOWRN8wkjHwA+8htAHskM1reQ=; b=VAortn4XPNJZt1SsLlZJdzHzSVQMg4GrCJ3IOhc1zJAQhBsYDoNbKfdfa2oqm38toc /0TL5oHCgPMKaJTFFRqp+4IB8B+XCDbI0TOIlaldwHq30UF/ehuJd1zvZRAIlz3LKiye sjN+juGWf9Cy8GrJQai7/nL0s7+1D41RD6OgsOInKFz1XTosstcrl9gF1yXF7Ugvo2i5 rlbRquPc0oPGlh2Ppma7s1Sn00Hk/k8rozpslg5eEimWV81zrz8Xjfo3rErRwgy+VEJi +8z+E0fFNjtbl9ghfTbgKoJXnTK36pf/omdGtQwsCDb/93b8jDR0+rT1us/XMt85QqLG wy5Q== X-Gm-Message-State: AOJu0YyDiTqhwAaBEDGMBicHnd/lNcRuDcW3X7uoHv4iHnLgpmEI8nzV RdP8zAyAHG4Y0tK9e9ZdDbU= X-Google-Smtp-Source: AGHT+IHYz2XdRKL3PBxgEAHlFeFWptqRewEQT3gWgB/hHliMo32MW2iVB1fnzBG+5n+CZQqJ4ZUcTQ== X-Received: by 2002:a17:902:e54a:b0:1c6:2d13:5b74 with SMTP id n10-20020a170902e54a00b001c62d135b74mr7264965plf.55.1696534895572; Thu, 05 Oct 2023 12:41:35 -0700 (PDT) Received: from bvanassche-linux.mtv.corp.google.com ([2620:15c:211:201:ca3e:70ef:bad:2f]) by smtp.gmail.com with ESMTPSA id u4-20020a170902e5c400b001a9b29b6759sm2129596plf.183.2023.10.05.12.41.34 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 05 Oct 2023 12:41:34 -0700 (PDT) From: Bart Van Assche To: Jens Axboe Cc: linux-block@vger.kernel.org, linux-scsi@vger.kernel.org, linux-fsdevel@vger.kernel.org, "Martin K . Petersen" , Christoph Hellwig , Niklas Cassel , Avri Altman , Bean Huo , Daejun Park , Bart Van Assche Subject: [PATCH v2 00/15] Pass data temperature information to UFS devices Date: Thu, 5 Oct 2023 12:40:46 -0700 Message-ID: <20231005194129.1882245-1-bvanassche@acm.org> X-Mailer: git-send-email 2.42.0.609.gbb76f46606-goog MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org Hi Jens, UFS vendors need the data lifetime information to achieve good performance. Without this information there is significantly higher write amplification due to garbage collection. Hence this patch series that add 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. Thanks, Bart. Changes compared to v1: - Use six bits from the ioprio field for data lifetime information. The bio->bi_write_hint / req->write_hint / iocb->ki_hint members that were introduced in v1 have been removed again. - The F_GET_FILE_RW_HINT and F_SET_FILE_RW_HINT fcntls have been removed. - In the SCSI disk (sd) driver, query the stream status and check the PERM bit. - The GET STREAM STATUS command has been implemented in the scsi_debug driver. Bart Van Assche (15): block: Make bio_set_ioprio() modify fewer bio->bi_ioprio bits blk-ioprio: Modify fewer bio->bi_ioprio bits block: Support data lifetime in the I/O priority bitfield fs: Restore write hint support fs/f2fs: Restore the whint_mode mount option scsi: core: Query the Block Limits Extension VPD page scsi_proto: Add structures and constants related to I/O groups and streams sd: Translate data lifetime information scsi_debug: Reduce code duplication scsi_debug: Support the block limits extension VPD page scsi_debug: Rework page code error handling scsi_debug: Rework subpage code error handling scsi_debug: Implement the IO Advice Hints Grouping mode page scsi_debug: Implement GET STREAM STATUS scsi_debug: Maintain write statistics per group number Documentation/filesystems/f2fs.rst | 70 ++++++++ block/blk-ioprio.c | 9 +- block/blk-mq.c | 3 +- drivers/scsi/scsi.c | 2 + drivers/scsi/scsi_debug.c | 247 +++++++++++++++++++++-------- drivers/scsi/scsi_sysfs.c | 10 ++ drivers/scsi/sd.c | 112 ++++++++++++- drivers/scsi/sd.h | 3 + fs/f2fs/data.c | 3 + fs/f2fs/f2fs.h | 9 ++ fs/f2fs/segment.c | 95 +++++++++++ fs/f2fs/super.c | 32 +++- fs/iomap/buffered-io.c | 3 + fs/mpage.c | 2 + include/linux/fs-lifetime.h | 20 +++ include/linux/ioprio.h | 10 ++ include/scsi/scsi_device.h | 1 + include/scsi/scsi_proto.h | 75 +++++++++ include/uapi/linux/ioprio.h | 8 +- 19 files changed, 639 insertions(+), 75 deletions(-) create mode 100644 include/linux/fs-lifetime.h