From patchwork Mon Jun 17 06:04:35 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 13699986 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 lists.xenproject.org (lists.xenproject.org [192.237.175.120]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 45621C27C7B for ; Mon, 17 Jun 2024 06:06:30 +0000 (UTC) Received: from list by lists.xenproject.org with outflank-mailman.741621.1148288 (Exim 4.92) (envelope-from ) id 1sJ5VU-0004NL-5Z; Mon, 17 Jun 2024 06:06:20 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 741621.1148288; Mon, 17 Jun 2024 06:06:20 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1sJ5VU-0004N8-24; Mon, 17 Jun 2024 06:06:20 +0000 Received: by outflank-mailman (input) for mailman id 741621; Mon, 17 Jun 2024 06:06:18 +0000 Received: from se1-gles-sth1-in.inumbo.com ([159.253.27.254] helo=se1-gles-sth1.inumbo.com) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1sJ5VS-0001Pt-OC for xen-devel@lists.xenproject.org; Mon, 17 Jun 2024 06:06:18 +0000 Received: from bombadil.infradead.org (bombadil.infradead.org [2607:7c80:54:3::133]) by se1-gles-sth1.inumbo.com (Halon) with ESMTPS id b49594e4-2c6f-11ef-90a3-e314d9c70b13; Mon, 17 Jun 2024 08:06:17 +0200 (CEST) Received: from [91.187.204.140] (helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.97.1 #2 (Red Hat Linux)) id 1sJ5V8-00000009IPz-27ba; Mon, 17 Jun 2024 06:05:59 +0000 X-BeenThere: xen-devel@lists.xenproject.org List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Precedence: list Sender: "Xen-devel" X-Inumbo-ID: b49594e4-2c6f-11ef-90a3-e314d9c70b13 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=jO/BbvgdYshCVZegwApTYZew4tnox1zjQOC4cbYeSu8=; b=aj7ZQCaJ/Dw/+h4IVcq1v/5m21 sd6Y2Jb9o7hr0/IPKveOSVb06koCuObSZOOJJS6BaHZrJMVlgKKzavHrMLF/sMnjznKhVuicLMLke v9g+0MseSnUCixJ8sOmO6tut3X5QCQCkwOdnVaTVM0xP9Q8KYLnN68GkSujOXDXYgpoq6COw9lhFA AsajI2zI/HE5waax+l/bJjII8Ex/A1pXxfAuQwIIdOSj6FGB/F8zL+vLgbpFDG3rcgB9IVB40hwrn Nu/xx2wm6ebX4Y16PCW+jpxcNvz7wCipxzDDnXo4ON8dGg3rMzr5qGXsWWvROR2prjhZAamPxmBfY vLU/nybQ==; 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, Damien Le Moal , Hannes Reinecke , Bart Van Assche Subject: [PATCH 08/26] loop: fold loop_update_rotational into loop_reconfigure_limits Date: Mon, 17 Jun 2024 08:04:35 +0200 Message-ID: <20240617060532.127975-9-hch@lst.de> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240617060532.127975-1-hch@lst.de> References: <20240617060532.127975-1-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 This prepares for moving the rotational flag into the queue_limits and also fixes it for the case where the loop device is backed by a block device. Signed-off-by: Christoph Hellwig Reviewed-by: Damien Le Moal Reviewed-by: Hannes Reinecke Reviewed-by: Bart Van Assche --- drivers/block/loop.c | 23 ++++------------------- 1 file changed, 4 insertions(+), 19 deletions(-) diff --git a/drivers/block/loop.c b/drivers/block/loop.c index 6a4826708a3acf..8991de8fb1bb0b 100644 --- a/drivers/block/loop.c +++ b/drivers/block/loop.c @@ -916,24 +916,6 @@ static void loop_free_idle_workers_timer(struct timer_list *timer) return loop_free_idle_workers(lo, false); } -static void loop_update_rotational(struct loop_device *lo) -{ - struct file *file = lo->lo_backing_file; - struct inode *file_inode = file->f_mapping->host; - struct block_device *file_bdev = file_inode->i_sb->s_bdev; - struct request_queue *q = lo->lo_queue; - bool nonrot = true; - - /* not all filesystems (e.g. tmpfs) have a sb->s_bdev */ - if (file_bdev) - nonrot = bdev_nonrot(file_bdev); - - if (nonrot) - blk_queue_flag_set(QUEUE_FLAG_NONROT, q); - else - blk_queue_flag_clear(QUEUE_FLAG_NONROT, q); -} - /** * loop_set_status_from_info - configure device from loop_info * @lo: struct loop_device to configure @@ -1003,6 +985,10 @@ static int loop_reconfigure_limits(struct loop_device *lo, unsigned short bsize) lim.logical_block_size = bsize; lim.physical_block_size = bsize; lim.io_min = bsize; + if (!backing_bdev || bdev_nonrot(backing_bdev)) + blk_queue_flag_set(QUEUE_FLAG_NONROT, lo->lo_queue); + else + blk_queue_flag_clear(QUEUE_FLAG_NONROT, lo->lo_queue); loop_config_discard(lo, &lim); return queue_limits_commit_update(lo->lo_queue, &lim); } @@ -1099,7 +1085,6 @@ static int loop_configure(struct loop_device *lo, blk_mode_t mode, if (WARN_ON_ONCE(error)) goto out_unlock; - loop_update_rotational(lo); loop_update_dio(lo); loop_sysfs_init(lo);