From patchwork Wed Apr 6 06:05:01 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 558502 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 B6714C433FE for ; Wed, 6 Apr 2022 09:05:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S245504AbiDFJHJ (ORCPT ); Wed, 6 Apr 2022 05:07:09 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52778 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1355626AbiDFJDD (ORCPT ); Wed, 6 Apr 2022 05:03:03 -0400 Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2607:7c80:54:e::133]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3FCE048F715; Tue, 5 Apr 2022 23:06:09 -0700 (PDT) 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=UWJPN++goBB2S+aW9/6zkPpXCdwY+K+VcYv7Ktvkfgc=; b=r7vqzyPF8OAIKrfwdstfJOZ0E+ NrSwiWyP+OCKGERhggpZl3eLSIp1ezZV3owY2YgUbT2MqBLPKKPqazNwF/WySNneFOMtrMiJKqIwS YOpivmF2MJLLAxiyxiCcSe3YGzEFIwalQib8kRZ3Rs8iwVOk55mFMFbKBpJ3635zdXzm/D+JSfu8z hkoyTHinNvYKAcGn2VvZY81Wn2BHVklFMsZnSpmixTRzyE4iqX9oX5R7uWiHg/kwQKj2h3DzO+BJa cvvlsj0uxa6VAs8LGSXjpg79IAGE4kwOzHPkaLOZ7SUHbyY8IU8wdGJULO/yvYRkNePSgYT1lbVfU WoV7XmvA==; Received: from 213-225-3-188.nat.highway.a1.net ([213.225.3.188] helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.94.2 #2 (Red Hat Linux)) id 1nbynu-003vCw-1w; Wed, 06 Apr 2022 06:06:06 +0000 From: Christoph Hellwig To: Jens Axboe Cc: dm-devel@redhat.com, linux-xfs@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-um@lists.infradead.org, linux-block@vger.kernel.org, drbd-dev@lists.linbit.com, nbd@other.debian.org, ceph-devel@vger.kernel.org, virtualization@lists.linux-foundation.org, xen-devel@lists.xenproject.org, linux-bcache@vger.kernel.org, linux-raid@vger.kernel.org, linux-mmc@vger.kernel.org, linux-mtd@lists.infradead.org, linux-nvme@lists.infradead.org, linux-s390@vger.kernel.org, linux-scsi@vger.kernel.org, target-devel@vger.kernel.org, linux-btrfs@vger.kernel.org, linux-ext4@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net, cluster-devel@redhat.com, jfs-discussion@lists.sourceforge.net, linux-nilfs@vger.kernel.org, ntfs3@lists.linux.dev, ocfs2-devel@oss.oracle.com, linux-mm@kvack.org Subject: [PATCH 12/27] block: add a bdev_fua helper Date: Wed, 6 Apr 2022 08:05:01 +0200 Message-Id: <20220406060516.409838-13-hch@lst.de> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20220406060516.409838-1-hch@lst.de> References: <20220406060516.409838-1-hch@lst.de> MIME-Version: 1.0 X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org Add a helper to check the FUA flag based on the block_device instead of having to poke into the block layer internal request_queue. Signed-off-by: Christoph Hellwig Reviewed-by: Martin K. Petersen --- drivers/block/rnbd/rnbd-srv.c | 3 +-- drivers/target/target_core_iblock.c | 3 +-- fs/iomap/direct-io.c | 3 +-- include/linux/blkdev.h | 6 +++++- 4 files changed, 8 insertions(+), 7 deletions(-) diff --git a/drivers/block/rnbd/rnbd-srv.c b/drivers/block/rnbd/rnbd-srv.c index f8cc3c5fecb4b..beaef43a67b9d 100644 --- a/drivers/block/rnbd/rnbd-srv.c +++ b/drivers/block/rnbd/rnbd-srv.c @@ -533,7 +533,6 @@ static void rnbd_srv_fill_msg_open_rsp(struct rnbd_msg_open_rsp *rsp, struct rnbd_srv_sess_dev *sess_dev) { struct rnbd_dev *rnbd_dev = sess_dev->rnbd_dev; - struct request_queue *q = bdev_get_queue(rnbd_dev->bdev); rsp->hdr.type = cpu_to_le16(RNBD_MSG_OPEN_RSP); rsp->device_id = @@ -560,7 +559,7 @@ static void rnbd_srv_fill_msg_open_rsp(struct rnbd_msg_open_rsp *rsp, rsp->cache_policy = 0; if (bdev_write_cache(rnbd_dev->bdev)) rsp->cache_policy |= RNBD_WRITEBACK; - if (blk_queue_fua(q)) + if (bdev_fua(rnbd_dev->bdev)) rsp->cache_policy |= RNBD_FUA; } diff --git a/drivers/target/target_core_iblock.c b/drivers/target/target_core_iblock.c index 03013e85ffc03..c4a903b8a47fc 100644 --- a/drivers/target/target_core_iblock.c +++ b/drivers/target/target_core_iblock.c @@ -727,14 +727,13 @@ iblock_execute_rw(struct se_cmd *cmd, struct scatterlist *sgl, u32 sgl_nents, if (data_direction == DMA_TO_DEVICE) { struct iblock_dev *ib_dev = IBLOCK_DEV(dev); - struct request_queue *q = bdev_get_queue(ib_dev->ibd_bd); /* * Force writethrough using REQ_FUA if a volatile write cache * is not enabled, or if initiator set the Force Unit Access bit. */ opf = REQ_OP_WRITE; miter_dir = SG_MITER_TO_SG; - if (test_bit(QUEUE_FLAG_FUA, &q->queue_flags)) { + if (bdev_fua(ib_dev->ibd_bd)) { if (cmd->se_cmd_flags & SCF_FUA) opf |= REQ_FUA; else if (!bdev_write_cache(ib_dev->ibd_bd)) diff --git a/fs/iomap/direct-io.c b/fs/iomap/direct-io.c index b08f5dc31780d..62da020d02a11 100644 --- a/fs/iomap/direct-io.c +++ b/fs/iomap/direct-io.c @@ -265,8 +265,7 @@ static loff_t iomap_dio_bio_iter(const struct iomap_iter *iter, * cache flushes on IO completion. */ if (!(iomap->flags & (IOMAP_F_SHARED|IOMAP_F_DIRTY)) && - (dio->flags & IOMAP_DIO_WRITE_FUA) && - blk_queue_fua(bdev_get_queue(iomap->bdev))) + (dio->flags & IOMAP_DIO_WRITE_FUA) && bdev_fua(iomap->bdev)) use_fua = true; } diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index 807a49aa5a27a..075b16d4560e7 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -602,7 +602,6 @@ bool blk_queue_flag_test_and_set(unsigned int flag, struct request_queue *q); REQ_FAILFAST_DRIVER)) #define blk_queue_quiesced(q) test_bit(QUEUE_FLAG_QUIESCED, &(q)->queue_flags) #define blk_queue_pm_only(q) atomic_read(&(q)->pm_only) -#define blk_queue_fua(q) test_bit(QUEUE_FLAG_FUA, &(q)->queue_flags) #define blk_queue_registered(q) test_bit(QUEUE_FLAG_REGISTERED, &(q)->queue_flags) #define blk_queue_nowait(q) test_bit(QUEUE_FLAG_NOWAIT, &(q)->queue_flags) @@ -1336,6 +1335,11 @@ static inline bool bdev_write_cache(struct block_device *bdev) return test_bit(QUEUE_FLAG_WC, &bdev_get_queue(bdev)->queue_flags); } +static inline bool bdev_fua(struct block_device *bdev) +{ + return test_bit(QUEUE_FLAG_FUA, &bdev_get_queue(bdev)->queue_flags); +} + static inline enum blk_zoned_model bdev_zoned_model(struct block_device *bdev) { struct request_queue *q = bdev_get_queue(bdev);