From mboxrd@z Thu Jan 1 00:00:00 1970 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 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.lore.kernel.org (Postfix) with ESMTPS id 8EADAC46CD3 for ; Sun, 17 Dec 2023 16:54:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From: Reply-To:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=enCDnmquPxgkKwyC2qR+XvLDdfSg3i0fs7qLsP5yxNo=; b=B0F6d0lhyGffkwkZ6G8XZPv/bi ZeqtIh+LasbwGSxZNIWbQLSTY5ZTMJRT4FWbfm6BMwBVyhAkPqTH/0EhFHdZu1GFKnOIEQPOBa+Jm jFRk8Y+rXjczNMEKElGWTBwm7uupwe7zalOZBn4rw3VpiQUsooE6TcsEFBG9bK3gUNnoNx9bB7EVH b0HRDNSFzmwNcWTTwlC/fhT6ycWo2S+SDcB6UGeXPhUuCfQ4CBfN/k9NFsfzS/lAtSIHXnOBajkB9 mk0WHKITE7ea9tLPle6FVLK0VafvE3YHge2gBb45hJQdxt4uKULnQelipNOEL7wWGMFN2veRoM2mz 0pHT1s9g==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1rEuP2-0088Lz-08; Sun, 17 Dec 2023 16:54:08 +0000 Received: from [88.128.92.84] (helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.96 #2 (Red Hat Linux)) id 1rEuOz-0088LO-2C; Sun, 17 Dec 2023 16:54:06 +0000 From: Christoph Hellwig To: Jens Axboe Cc: Paolo Bonzini , Stefan Hajnoczi , Damien Le Moal , "Martin K. Petersen" , dm-devel@lists.linux.dev, linux-kernel@vger.kernel.org, virtualization@lists.linux.dev, linux-nvme@lists.infradead.org, linux-scsi@vger.kernel.org, linux-btrfs@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net Subject: [PATCH 1/5] virtio_blk: cleanup zoned device probing Date: Sun, 17 Dec 2023 17:53:55 +0100 Message-Id: <20231217165359.604246-2-hch@lst.de> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20231217165359.604246-1-hch@lst.de> References: <20231217165359.604246-1-hch@lst.de> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-BeenThere: linux-nvme@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-nvme" Errors-To: linux-nvme-bounces+linux-nvme=archiver.kernel.org@lists.infradead.org Move reading and checking the zoned model from virtblk_probe_zoned_device into the caller, leaving only the code to perform the actual setup for host managed zoned devices in virtblk_probe_zoned_device. This allows to share the model reading and sharing between builds with and without CONFIG_BLK_DEV_ZONED, and improve it for the !CONFIG_BLK_DEV_ZONED case. Signed-off-by: Christoph Hellwig --- drivers/block/virtio_blk.c | 50 +++++++++++++++++--------------------- 1 file changed, 22 insertions(+), 28 deletions(-) diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c index d53d6aa8ee69a4..aeead732a24dc9 100644 --- a/drivers/block/virtio_blk.c +++ b/drivers/block/virtio_blk.c @@ -748,22 +748,6 @@ static int virtblk_probe_zoned_device(struct virtio_device *vdev, struct request_queue *q) { u32 v, wg; - u8 model; - - virtio_cread(vdev, struct virtio_blk_config, - zoned.model, &model); - - switch (model) { - case VIRTIO_BLK_Z_NONE: - case VIRTIO_BLK_Z_HA: - /* Present the host-aware device as non-zoned */ - return 0; - case VIRTIO_BLK_Z_HM: - break; - default: - dev_err(&vdev->dev, "unsupported zone model %d\n", model); - return -EINVAL; - } dev_dbg(&vdev->dev, "probing host-managed zoned device\n"); @@ -846,16 +830,9 @@ static inline void virtblk_revalidate_zones(struct virtio_blk *vblk) static inline int virtblk_probe_zoned_device(struct virtio_device *vdev, struct virtio_blk *vblk, struct request_queue *q) { - u8 model; - - virtio_cread(vdev, struct virtio_blk_config, zoned.model, &model); - if (model == VIRTIO_BLK_Z_HM) { - dev_err(&vdev->dev, - "virtio_blk: zoned devices are not supported"); - return -EOPNOTSUPP; - } - - return 0; + dev_err(&vdev->dev, + "virtio_blk: zoned devices are not supported"); + return -EOPNOTSUPP; } #endif /* CONFIG_BLK_DEV_ZONED */ @@ -1570,9 +1547,26 @@ static int virtblk_probe(struct virtio_device *vdev) * placed after the virtio_device_ready() call above. */ if (virtio_has_feature(vdev, VIRTIO_BLK_F_ZONED)) { - err = virtblk_probe_zoned_device(vdev, vblk, q); - if (err) + u8 model; + + virtio_cread(vdev, struct virtio_blk_config, zoned.model, + &model); + switch (model) { + case VIRTIO_BLK_Z_NONE: + case VIRTIO_BLK_Z_HA: + /* Present the host-aware device as non-zoned */ + break; + case VIRTIO_BLK_Z_HM: + err = virtblk_probe_zoned_device(vdev, vblk, q); + if (err) + goto out_cleanup_disk; + break; + default: + dev_err(&vdev->dev, "unsupported zone model %d\n", + model); + err = -EINVAL; goto out_cleanup_disk; + } } err = device_add_disk(&vdev->dev, vblk->disk, virtblk_attr_groups); -- 2.39.2