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From: Christoph Hellwig <hch@lst.de>
To: axboe@kernel.dk
Cc: linux-block@vger.kernel.org
Subject: [PATCH 2/2] mtip32xx: use blk_mq_alloc_disk and blk_cleanup_disk
Date: Mon, 14 Jun 2021 08:03:43 +0200	[thread overview]
Message-ID: <20210614060343.3965416-3-hch@lst.de> (raw)
In-Reply-To: <20210614060343.3965416-1-hch@lst.de>

Use blk_mq_alloc_disk and blk_cleanup_disk to simplify the gendisk and
request_queue allocation.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 drivers/block/mtip32xx/mtip32xx.c | 71 ++++++++++++-------------------
 1 file changed, 27 insertions(+), 44 deletions(-)

diff --git a/drivers/block/mtip32xx/mtip32xx.c b/drivers/block/mtip32xx/mtip32xx.c
index e2749698fb81..461cb8846c83 100644
--- a/drivers/block/mtip32xx/mtip32xx.c
+++ b/drivers/block/mtip32xx/mtip32xx.c
@@ -3561,35 +3561,6 @@ static int mtip_block_initialize(struct driver_data *dd)
 		goto protocol_init_error;
 	}
 
-	dd->disk = alloc_disk_node(MTIP_MAX_MINORS, dd->numa_node);
-	if (dd->disk  == NULL) {
-		dev_err(&dd->pdev->dev,
-			"Unable to allocate gendisk structure\n");
-		rv = -EINVAL;
-		goto alloc_disk_error;
-	}
-
-	rv = ida_alloc(&rssd_index_ida, GFP_KERNEL);
-	if (rv < 0)
-		goto ida_get_error;
-	index = rv;
-
-	rv = rssd_disk_name_format("rssd",
-				index,
-				dd->disk->disk_name,
-				DISK_NAME_LEN);
-	if (rv)
-		goto disk_index_error;
-
-	dd->disk->major		= dd->major;
-	dd->disk->first_minor	= index * MTIP_MAX_MINORS;
-	dd->disk->minors 	= MTIP_MAX_MINORS;
-	dd->disk->fops		= &mtip_block_ops;
-	dd->disk->private_data	= dd;
-	dd->index		= index;
-
-	mtip_hw_debugfs_init(dd);
-
 	memset(&dd->tags, 0, sizeof(dd->tags));
 	dd->tags.ops = &mtip_mq_ops;
 	dd->tags.nr_hw_queues = 1;
@@ -3608,17 +3579,35 @@ static int mtip_block_initialize(struct driver_data *dd)
 		goto block_queue_alloc_tag_error;
 	}
 
-	/* Allocate the request queue. */
-	dd->queue = blk_mq_init_queue(&dd->tags);
-	if (IS_ERR(dd->queue)) {
+	dd->disk = blk_mq_alloc_disk(&dd->tags, dd);
+	if (IS_ERR(dd->disk)) {
 		dev_err(&dd->pdev->dev,
 			"Unable to allocate request queue\n");
 		rv = -ENOMEM;
 		goto block_queue_alloc_init_error;
 	}
+	dd->queue		= dd->disk->queue;
 
-	dd->disk->queue		= dd->queue;
-	dd->queue->queuedata	= dd;
+	rv = ida_alloc(&rssd_index_ida, GFP_KERNEL);
+	if (rv < 0)
+		goto ida_get_error;
+	index = rv;
+
+	rv = rssd_disk_name_format("rssd",
+				index,
+				dd->disk->disk_name,
+				DISK_NAME_LEN);
+	if (rv)
+		goto disk_index_error;
+
+	dd->disk->major		= dd->major;
+	dd->disk->first_minor	= index * MTIP_MAX_MINORS;
+	dd->disk->minors 	= MTIP_MAX_MINORS;
+	dd->disk->fops		= &mtip_block_ops;
+	dd->disk->private_data	= dd;
+	dd->index		= index;
+
+	mtip_hw_debugfs_init(dd);
 
 skip_create_disk:
 	/* Initialize the protocol layer. */
@@ -3684,23 +3673,17 @@ static int mtip_block_initialize(struct driver_data *dd)
 kthread_run_error:
 	/* Delete our gendisk. This also removes the device from /dev */
 	del_gendisk(dd->disk);
-
 read_capacity_error:
 init_hw_cmds_error:
-	blk_cleanup_queue(dd->queue);
-block_queue_alloc_init_error:
-	blk_mq_free_tag_set(&dd->tags);
-block_queue_alloc_tag_error:
 	mtip_hw_debugfs_exit(dd);
 disk_index_error:
 	ida_free(&rssd_index_ida, index);
-
 ida_get_error:
-	put_disk(dd->disk);
-
-alloc_disk_error:
+	blk_cleanup_disk(dd->disk);
+block_queue_alloc_init_error:
+	blk_mq_free_tag_set(&dd->tags);
+block_queue_alloc_tag_error:
 	mtip_hw_exit(dd); /* De-initialize the protocol layer. */
-
 protocol_init_error:
 	return rv;
 }
-- 
2.30.2


  parent reply	other threads:[~2021-06-14  6:04 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-14  6:03 mtip32xx cleanups Christoph Hellwig
2021-06-14  6:03 ` [PATCH 1/2] mtip32xx: simplify sysfs setup Christoph Hellwig
2021-06-14  6:03 ` Christoph Hellwig [this message]
2021-06-15 21:56 ` mtip32xx cleanups Jens Axboe

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