From patchwork Tue Jun 11 05:19:12 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 13693044 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.subspace.kernel.org (Postfix) with ESMTPS id 00DCD176AAC; Tue, 11 Jun 2024 05:20:20 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.137.202.133 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718083222; cv=none; b=LCqnaFiOZQ96jRKCah+fiyZdoZQC+eUvFG9ZR03QrrDi1WBzrLXIZ1L48yGNn6KPfcsZVZzDL1ox07hUvmxmh2yvmjxlFPTBo+KPXzt1OAwVzYd0jQs+YxxTx072NQYtdOOUVyqR1hxpAkUW/tCnzHrT+0vaiT488gNPRiKa24g= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718083222; c=relaxed/simple; bh=uwpkMnHzfEEUxik2kwxOVW0RWZb5AUsHn80I70/vU1M=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=pSZ722abausG3xNooGOUdy/qZ0W9/DXDC5HCYF1fNZKiKAW/G4NQlxIxKW/hO8WnuaQtunb16kSgTpbVeynorOUkwEflRpD3/k3bpt7vbp5hJ8sYiNIF//xmLwCsY1mjzMwkLYfkylRG6lkkTDiw8QgxqVMv2HZ2PXaihtIgVbw= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=lst.de; spf=none smtp.mailfrom=bombadil.srs.infradead.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b=tqeyL4qA; arc=none smtp.client-ip=198.137.202.133 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=lst.de Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=bombadil.srs.infradead.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="tqeyL4qA" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; h=Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:Cc:To:From:Sender :Reply-To:Content-Type:Content-ID:Content-Description; bh=d3AwxBu+VkFli34awimWaaFVvEWHaqxKTv0UwQ9CRyc=; b=tqeyL4qAQR7OhvjRw/yA9bfsYL N7xOcD+7T+hDGiHjgbYtqeGtHZOfnb7lkqTfhINRoXm8Ee/FCoElOSL9s5+c7xym/wAGYkkCCfTnf qnZh6UX/gAl/6P74rJ/m8SqAil023LUZcv7Cr265hYsCU/L9dwK5YaQOsXptA+e34hFEY+D4fsWNP I/TkliZmU6+cRQG+O7IAEegj9IsAiU1oLp5bK5FUQVjUzc+yLZkVwnddnikR9Tnjh2lQ+tABeLqD6 BTy061IMVJym4Pxy6W2dcyfJp0bugTmVuat/LwZBLmMMQuWFCsrfBogivxrNR625W3HQo2OxmIK95 Gt3RlwjA==; Received: from 2a02-8389-2341-5b80-cdb4-8e7d-405d-6b77.cable.dynamic.v6.surfer.at ([2a02:8389:2341:5b80:cdb4:8e7d:405d:6b77] helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.97.1 #2 (Red Hat Linux)) id 1sGtvT-00000007R7j-1fbd; Tue, 11 Jun 2024 05:20:07 +0000 From: Christoph Hellwig To: Jens Axboe Cc: Geert Uytterhoeven , Richard Weinberger , Philipp Reisner , Lars Ellenberg , =?utf-8?q?Christoph_B=C3=B6hmwa?= =?utf-8?q?lder?= , Josef Bacik , Ming Lei , "Michael S. Tsirkin" , Jason Wang , =?utf-8?q?Roger_Pau_Monn=C3=A9?= , Alasdair Kergon , Mike Snitzer , Mikulas Patocka , Song Liu , Yu Kuai , Vineeth Vijayan , "Martin K. Petersen" , linux-m68k@lists.linux-m68k.org, linux-um@lists.infradead.org, drbd-dev@lists.linbit.com, nbd@other.debian.org, linuxppc-dev@lists.ozlabs.org, ceph-devel@vger.kernel.org, virtualization@lists.linux.dev, xen-devel@lists.xenproject.org, linux-bcache@vger.kernel.org, dm-devel@lists.linux.dev, linux-raid@vger.kernel.org, linux-mmc@vger.kernel.org, linux-mtd@lists.infradead.org, nvdimm@lists.linux.dev, linux-nvme@lists.infradead.org, linux-s390@vger.kernel.org, linux-scsi@vger.kernel.org, linux-block@vger.kernel.org Subject: [PATCH 12/26] block: remove blk_flush_policy Date: Tue, 11 Jun 2024 07:19:12 +0200 Message-ID: <20240611051929.513387-13-hch@lst.de> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240611051929.513387-1-hch@lst.de> References: <20240611051929.513387-1-hch@lst.de> Precedence: bulk X-Mailing-List: nvdimm@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Fold blk_flush_policy into the only caller to prepare for pending changes to it. Signed-off-by: Christoph Hellwig Reviewed-by: Damien Le Moal Reviewed-by: Hannes Reinecke --- block/blk-flush.c | 33 +++++++++++++++------------------ 1 file changed, 15 insertions(+), 18 deletions(-) diff --git a/block/blk-flush.c b/block/blk-flush.c index c17cf8ed8113db..2234f8b3fc05f2 100644 --- a/block/blk-flush.c +++ b/block/blk-flush.c @@ -100,23 +100,6 @@ blk_get_flush_queue(struct request_queue *q, struct blk_mq_ctx *ctx) return blk_mq_map_queue(q, REQ_OP_FLUSH, ctx)->fq; } -static unsigned int blk_flush_policy(unsigned long fflags, struct request *rq) -{ - unsigned int policy = 0; - - if (blk_rq_sectors(rq)) - policy |= REQ_FSEQ_DATA; - - if (fflags & (1UL << QUEUE_FLAG_WC)) { - if (rq->cmd_flags & REQ_PREFLUSH) - policy |= REQ_FSEQ_PREFLUSH; - if (!(fflags & (1UL << QUEUE_FLAG_FUA)) && - (rq->cmd_flags & REQ_FUA)) - policy |= REQ_FSEQ_POSTFLUSH; - } - return policy; -} - static unsigned int blk_flush_cur_seq(struct request *rq) { return 1 << ffz(rq->flush.seq); @@ -399,12 +382,26 @@ bool blk_insert_flush(struct request *rq) { struct request_queue *q = rq->q; unsigned long fflags = q->queue_flags; /* may change, cache */ - unsigned int policy = blk_flush_policy(fflags, rq); struct blk_flush_queue *fq = blk_get_flush_queue(q, rq->mq_ctx); + unsigned int policy = 0; /* FLUSH/FUA request must never be merged */ WARN_ON_ONCE(rq->bio != rq->biotail); + if (blk_rq_sectors(rq)) + policy |= REQ_FSEQ_DATA; + + /* + * Check which flushes we need to sequence for this operation. + */ + if (fflags & (1UL << QUEUE_FLAG_WC)) { + if (rq->cmd_flags & REQ_PREFLUSH) + policy |= REQ_FSEQ_PREFLUSH; + if (!(fflags & (1UL << QUEUE_FLAG_FUA)) && + (rq->cmd_flags & REQ_FUA)) + policy |= REQ_FSEQ_POSTFLUSH; + } + /* * @policy now records what operations need to be done. Adjust * REQ_PREFLUSH and FUA for the driver.