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scsi: bsg: Simplify device registration

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Use the per-device cdev_device_interface to store the bsg data in the char
device inode, and thus remove the need to embedd the bsg_class_device
structure in the request_queue.

Link: https://lore.kernel.org/r/20210729064845.1044147-2-hch@lst.de
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Christoph Hellwig 2021-07-29 08:48:42 +02:00 • committed by Martin K. Petersen
parent ba51bdafaa
commit ead09dd3ae
9 changed files with 107 additions and 276 deletions
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6
include/linux/blkdev.h
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@ -18,7 +18,6 @@
#include <linux/bio.h>
#include <linux/stringify.h>
#include <linux/gfp.h>
#include <linux/bsg.h>
#include <linux/smp.h>
#include <linux/rcupdate.h>
#include <linux/percpu-refcount.h>
@ -33,7 +32,6 @@ struct elevator_queue;
struct blk_trace;
struct request;
struct sg_io_hdr;
struct bsg_job;
struct blkcg_gq;
struct blk_flush_queue;
struct pr_ops;
@ -535,10 +533,6 @@ struct request_queue {
int mq_freeze_depth;
#if IS_ENABLED(CONFIG_BLK_DEV_BSG_COMMON)
struct bsg_class_device bsg_dev;
#endif
#ifdef CONFIG_BLK_DEV_THROTTLING
/* Throttle data */
struct throtl_data *td;