[PATCH 07/26] drbd: convert to blk_alloc_disk/blk_cleanup_disk
From: Christoph Hellwig <hch@lst.de>
Date: 2021-05-21 05:52:06
Also in:
dm-devel, linux-bcache, linux-block, linux-m68k, linux-mmc, linux-raid, linuxppc-dev, nvdimm
Subsystem:
block layer, drbd driver, the rest · Maintainers:
Jens Axboe, Philipp Reisner, Lars Ellenberg, Christoph Böhmwalder, Linus Torvalds
Convert the drbd driver to use the blk_alloc_disk and blk_cleanup_disk helpers to simplify gendisk and request_queue allocation. Signed-off-by: Christoph Hellwig <hch@lst.de> --- drivers/block/drbd/drbd_main.c | 23 ++++++++--------------- 1 file changed, 8 insertions(+), 15 deletions(-)
diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c
index de463773b530..55234a558e98 100644
--- a/drivers/block/drbd/drbd_main.c
+++ b/drivers/block/drbd/drbd_main.c@@ -2231,8 +2231,7 @@ void drbd_destroy_device(struct kref *kref) if (device->bitmap) /* should no longer be there. */ drbd_bm_cleanup(device); __free_page(device->md_io.page); - put_disk(device->vdisk); - blk_cleanup_queue(device->rq_queue); + blk_cleanup_disk(device->vdisk); kfree(device->rs_plan_s); /* not for_each_connection(connection, resource):
@@ -2701,7 +2700,6 @@ enum drbd_ret_code drbd_create_device(struct drbd_config_context *adm_ctx, unsig struct drbd_device *device; struct drbd_peer_device *peer_device, *tmp_peer_device; struct gendisk *disk; - struct request_queue *q; int id; int vnr = adm_ctx->volume; enum drbd_ret_code err = ERR_NOMEM;
@@ -2723,29 +2721,26 @@ enum drbd_ret_code drbd_create_device(struct drbd_config_context *adm_ctx, unsig drbd_init_set_defaults(device); - q = blk_alloc_queue(NUMA_NO_NODE); - if (!q) - goto out_no_q; - device->rq_queue = q; - - disk = alloc_disk(1); + disk = blk_alloc_disk(NUMA_NO_NODE); if (!disk) goto out_no_disk; + device->vdisk = disk; + device->rq_queue = disk->queue; set_disk_ro(disk, true); - disk->queue = q; disk->major = DRBD_MAJOR; disk->first_minor = minor; + disk->minors = 1; disk->fops = &drbd_ops; sprintf(disk->disk_name, "drbd%d", minor); disk->private_data = device; - blk_queue_write_cache(q, true, true); + blk_queue_write_cache(disk->queue, true, true); /* Setting the max_hw_sectors to an odd value of 8kibyte here This triggers a max_bio_size message upon first attach or connect */ - blk_queue_max_hw_sectors(q, DRBD_MAX_BIO_SIZE_SAFE >> 8); + blk_queue_max_hw_sectors(disk->queue, DRBD_MAX_BIO_SIZE_SAFE >> 8); device->md_io.page = alloc_page(GFP_KERNEL); if (!device->md_io.page)
@@ -2834,10 +2829,8 @@ enum drbd_ret_code drbd_create_device(struct drbd_config_context *adm_ctx, unsig out_no_bitmap: __free_page(device->md_io.page); out_no_io_page: - put_disk(disk); + blk_cleanup_disk(disk); out_no_disk: - blk_cleanup_queue(q); -out_no_q: kref_put(&resource->kref, drbd_destroy_resource); kfree(device); return err;
--
2.30.2