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bsg: bind bsg to request_queue instead of gendisk

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This patch binds bsg devices to request_queue instead of gendisk. Any
objects (like transport entities) can define own request_handler and
create own bsg device.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
This commit is contained in:
FUJITA Tomonori
2007-07-09 12:40:35 +02:00
committed by Jens Axboe
parent 45e79a3acd
commit d351af01b9
5 changed files with 29 additions and 29 deletions
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5
include/linux/blkdev.h
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@@ -14,6 +14,7 @@
#include <linux/bio.h>
#include <linux/module.h>
#include <linux/stringify.h>
#include <linux/bsg.h>
#include <asm/scatterlist.h>
@@ -470,6 +471,10 @@ struct request_queue
unsigned int bi_size;
struct mutex sysfs_lock;
#if defined(CONFIG_BLK_DEV_BSG)
struct bsg_class_device bsg_dev;
#endif
};
#define QUEUE_FLAG_CLUSTER 0 /* cluster several segments into 1 */

10
include/linux/bsg.h
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@@ -47,16 +47,16 @@ struct bsg_class_device {
struct class_device *class_dev;
struct device *dev;
int minor;
struct gendisk *disk;
struct list_head list;
struct request_queue *queue;
};
extern int bsg_register_disk(struct gendisk *);
extern void bsg_unregister_disk(struct gendisk *);
extern int bsg_register_queue(struct request_queue *, char *);
extern void bsg_unregister_queue(struct request_queue *);
#else
struct bsg_class_device { };
#define bsg_register_disk(disk) (0)
#define bsg_unregister_disk(disk) do { } while (0)
#define bsg_register_queue(disk, name) (0)
#define bsg_unregister_queue(disk) do { } while (0)
#endif
#endif /* __KERNEL__ */

2
include/linux/genhd.h
View File

@@ -67,7 +67,6 @@ struct partition {
#include <linux/string.h>
#include <linux/fs.h>
#include <linux/workqueue.h>
#include <linux/bsg.h>
struct partition {
unsigned char boot_ind; /* 0x80 - active */
@@ -92,7 +91,6 @@ struct hd_struct {
#ifdef CONFIG_FAIL_MAKE_REQUEST
int make_it_fail;
#endif
struct bsg_class_device bsg_dev;
};
#define GENHD_FL_REMOVABLE 1