03a5743a12
Our current implementation has a generic set of barrier functions that go through the SCSI driver model. Realistically, this is unnecessary, because the only device that can use barriers (sd) can set the flush functions up at probe or revalidate time. This patch pulls the barrier functions out of the mid layer and scsi driver model and relocates them directly in sd. Acked-by: Tejun Heo <htejun@gmail.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
28 lines
647 B
C
28 lines
647 B
C
#ifndef _SCSI_SCSI_DRIVER_H
|
|
#define _SCSI_SCSI_DRIVER_H
|
|
|
|
#include <linux/device.h>
|
|
|
|
struct module;
|
|
struct scsi_cmnd;
|
|
|
|
|
|
struct scsi_driver {
|
|
struct module *owner;
|
|
struct device_driver gendrv;
|
|
|
|
int (*init_command)(struct scsi_cmnd *);
|
|
void (*rescan)(struct device *);
|
|
};
|
|
#define to_scsi_driver(drv) \
|
|
container_of((drv), struct scsi_driver, gendrv)
|
|
|
|
extern int scsi_register_driver(struct device_driver *);
|
|
#define scsi_unregister_driver(drv) \
|
|
driver_unregister(drv);
|
|
|
|
extern int scsi_register_interface(struct class_interface *);
|
|
#define scsi_unregister_interface(intf) \
|
|
class_interface_unregister(intf)
|
|
|
|
#endif /* _SCSI_SCSI_DRIVER_H */
|