From ef35885400481b46ede9cbdcc1fce902e06002c5 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Fri, 21 May 2021 07:51:14 +0200 Subject: [PATCH] xpram: convert to blk_alloc_disk/blk_cleanup_disk Convert the xpram driver to use the blk_alloc_disk and blk_cleanup_disk helpers to simplify gendisk and request_queue allocation. Signed-off-by: Christoph Hellwig Reviewed-by: Hannes Reinecke Reviewed-by: Ulf Hansson Link: https://lore.kernel.org/r/20210521055116.1053587-25-hch@lst.de Signed-off-by: Jens Axboe --- drivers/s390/block/xpram.c | 26 +++++++++----------------- 1 file changed, 9 insertions(+), 17 deletions(-) diff --git a/drivers/s390/block/xpram.c b/drivers/s390/block/xpram.c index d1ed391..91ef710 100644 --- a/drivers/s390/block/xpram.c +++ b/drivers/s390/block/xpram.c @@ -56,7 +56,6 @@ typedef struct { static xpram_device_t xpram_devices[XPRAM_MAX_DEVS]; static unsigned int xpram_sizes[XPRAM_MAX_DEVS]; static struct gendisk *xpram_disks[XPRAM_MAX_DEVS]; -static struct request_queue *xpram_queues[XPRAM_MAX_DEVS]; static unsigned int xpram_pages; static int xpram_devs; @@ -341,17 +340,13 @@ static int __init xpram_setup_blkdev(void) int i, rc = -ENOMEM; for (i = 0; i < xpram_devs; i++) { - xpram_disks[i] = alloc_disk(1); + xpram_disks[i] = blk_alloc_disk(NUMA_NO_NODE); if (!xpram_disks[i]) goto out; - xpram_queues[i] = blk_alloc_queue(NUMA_NO_NODE); - if (!xpram_queues[i]) { - put_disk(xpram_disks[i]); - goto out; - } - blk_queue_flag_set(QUEUE_FLAG_NONROT, xpram_queues[i]); - blk_queue_flag_clear(QUEUE_FLAG_ADD_RANDOM, xpram_queues[i]); - blk_queue_logical_block_size(xpram_queues[i], 4096); + blk_queue_flag_set(QUEUE_FLAG_NONROT, xpram_disks[i]->queue); + blk_queue_flag_clear(QUEUE_FLAG_ADD_RANDOM, + xpram_disks[i]->queue); + blk_queue_logical_block_size(xpram_disks[i]->queue, 4096); } /* @@ -373,9 +368,9 @@ static int __init xpram_setup_blkdev(void) offset += xpram_devices[i].size; disk->major = XPRAM_MAJOR; disk->first_minor = i; + disk->minors = 1; disk->fops = &xpram_devops; disk->private_data = &xpram_devices[i]; - disk->queue = xpram_queues[i]; sprintf(disk->disk_name, "slram%d", i); set_capacity(disk, xpram_sizes[i] << 1); add_disk(disk); @@ -383,10 +378,8 @@ static int __init xpram_setup_blkdev(void) return 0; out: - while (i--) { - blk_cleanup_queue(xpram_queues[i]); - put_disk(xpram_disks[i]); - } + while (i--) + blk_cleanup_disk(xpram_disks[i]); return rc; } @@ -434,8 +427,7 @@ static void __exit xpram_exit(void) int i; for (i = 0; i < xpram_devs; i++) { del_gendisk(xpram_disks[i]); - blk_cleanup_queue(xpram_queues[i]); - put_disk(xpram_disks[i]); + blk_cleanup_disk(xpram_disks[i]); } unregister_blkdev(XPRAM_MAJOR, XPRAM_NAME); platform_device_unregister(xpram_pdev); -- 2.7.4