From patchwork Sun Apr 28 05:19:00 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Al Viro X-Patchwork-Id: 13645861 Received: from zeniv.linux.org.uk (zeniv.linux.org.uk [62.89.141.173]) (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 B81973C28; Sun, 28 Apr 2024 05:19:02 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=62.89.141.173 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1714281544; cv=none; b=JKqklUHTmekFhIh01tuY6SmEimUihMrxITlxfIcTdyAi8OTPW0c0vL2/a0ZFiCVsYf+QHZE+bmERw3y0IhkPTuo9Sfxbzw1qJNTHgXN+7oQwVsfG8ErTZZR510EAgefIVoHyFCSSyTg/oPQSCYmy0AIKxI8hWaN2FR9/1HmWAcQ= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1714281544; c=relaxed/simple; bh=wM+0OgGZu8hO2Fn+GCnfnseFlCFqVn7dQHD0jDuyZaY=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; 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bh=MXOTJZGYGgFux0gWx+fGk+GxPTBkFmwMjosjPL6WUqE=; b=jshJ5KR18qEcPTGWXNFdPniy6t MQd5toYF32OwJEY3VvCyZtjhHl9n/ChAVXO5hrGzhZPABEXTPOjimbJlFUZQqk3be//Sney7bfUVY 8nK190XkeTCLIBYp+K6doYvq8uSooesSmD6fueFHVLJLwSipM7OiAq6uyoj+R3iHvMnrw+4Qig4uk UcDgUNmy/z36FI5u+N5YQPwWNXBXpY4kNW2bmei/rpjsB+36eM5idzdBUqAHwoEdoWXxqC+tXAGKx s05jhHkIxtrg2MaWF5SnHj9W7szjc9mvoSeekqKRP+dWNReVaiaGUMTv8P8tNI0MwPuVxCntwNYJF WwExfzQg==; Received: from viro by zeniv.linux.org.uk with local (Exim 4.96 #2 (Red Hat Linux)) id 1s0wwG-006VOF-30; Sun, 28 Apr 2024 05:19:01 +0000 Date: Sun, 28 Apr 2024 06:19:00 +0100 From: Al Viro To: linux-fsdevel@vger.kernel.org Cc: Yu Kuai , linux-block@vger.kernel.org, Christian Brauner , Christoph Hellwig , Jens Axboe Subject: [PATCH 6/8] bdev: move ->bd_has_subit_bio to ->__bd_flags Message-ID: <20240428051900.GF1549798@ZenIV> References: <20240428051232.GU2118490@ZenIV> Precedence: bulk X-Mailing-List: linux-block@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20240428051232.GU2118490@ZenIV> Sender: Al Viro Signed-off-by: Al Viro --- block/bdev.c | 6 ++---- block/blk-core.c | 4 ++-- block/genhd.c | 3 ++- include/linux/blk_types.h | 2 +- 4 files changed, 7 insertions(+), 8 deletions(-) diff --git a/block/bdev.c b/block/bdev.c index 24c1dd6de8a9..9aa23620fe92 100644 --- a/block/bdev.c +++ b/block/bdev.c @@ -414,10 +414,8 @@ struct block_device *bdev_alloc(struct gendisk *disk, u8 partno) bdev->__bd_flags = partno; bdev->bd_inode = inode; bdev->bd_queue = disk->queue; - if (partno) - bdev->bd_has_submit_bio = disk->part0->bd_has_submit_bio; - else - bdev->bd_has_submit_bio = false; + if (partno && bdev_test_flag(disk->part0, BD_HAS_SUBMIT_BIO)) + bdev_set_flag(bdev, BD_HAS_SUBMIT_BIO); bdev->bd_stats = alloc_percpu(struct disk_stats); if (!bdev->bd_stats) { iput(inode); diff --git a/block/blk-core.c b/block/blk-core.c index 20322abc6082..f61460b65408 100644 --- a/block/blk-core.c +++ b/block/blk-core.c @@ -615,7 +615,7 @@ static void __submit_bio(struct bio *bio) if (unlikely(!blk_crypto_bio_prep(&bio))) return; - if (!bio->bi_bdev->bd_has_submit_bio) { + if (!bdev_test_flag(bio->bi_bdev, BD_HAS_SUBMIT_BIO)) { blk_mq_submit_bio(bio); } else if (likely(bio_queue_enter(bio) == 0)) { struct gendisk *disk = bio->bi_bdev->bd_disk; @@ -723,7 +723,7 @@ void submit_bio_noacct_nocheck(struct bio *bio) */ if (current->bio_list) bio_list_add(¤t->bio_list[0], bio); - else if (!bio->bi_bdev->bd_has_submit_bio) + else if (!bdev_test_flag(bio->bi_bdev, BD_HAS_SUBMIT_BIO)) __submit_bio_noacct_mq(bio); else __submit_bio_noacct(bio); diff --git a/block/genhd.c b/block/genhd.c index bb29a68e1d67..19cd1a31fa80 100644 --- a/block/genhd.c +++ b/block/genhd.c @@ -413,7 +413,8 @@ int __must_check device_add_disk(struct device *parent, struct gendisk *disk, elevator_init_mq(disk->queue); /* Mark bdev as having a submit_bio, if needed */ - disk->part0->bd_has_submit_bio = disk->fops->submit_bio != NULL; + if (disk->fops->submit_bio) + bdev_set_flag(disk->part0, BD_HAS_SUBMIT_BIO); /* * If the driver provides an explicit major number it also must provide diff --git a/include/linux/blk_types.h b/include/linux/blk_types.h index 8a336053b5fa..c8f5364b24f1 100644 --- a/include/linux/blk_types.h +++ b/include/linux/blk_types.h @@ -46,7 +46,6 @@ struct block_device { struct disk_stats __percpu *bd_stats; unsigned long bd_stamp; u32 __bd_flags; // partition number + flags - bool bd_has_submit_bio; dev_t bd_dev; struct inode *bd_inode; /* will die */ @@ -87,6 +86,7 @@ struct block_device { enum { BD_READ_ONLY, // read-only policy BD_WRITE_HOLDER, + BD_HAS_SUBMIT_BIO, }; /*