elevator_init_fn *elevator_init_fn;
elevator_exit_fn *elevator_exit_fn;
+ void (*trim)(struct io_context *);
};
#define ELV_NAME_MAX (16)
+struct elv_fs_entry {
+ struct attribute attr;
+ ssize_t (*show)(elevator_t *, char *);
+ ssize_t (*store)(elevator_t *, const char *, size_t);
+};
+
/*
* identifies an elevator type, such as AS or deadline
*/
struct list_head list;
struct elevator_ops ops;
struct elevator_type *elevator_type;
- struct kobj_type *elevator_ktype;
+ struct elv_fs_entry *elevator_attrs;
char elevator_name[ELV_NAME_MAX];
struct module *elevator_owner;
};
/*
- * each queue has an elevator_queue assoicated with it
+ * each queue has an elevator_queue associated with it
*/
struct elevator_queue
{
void *elevator_data;
struct kobject kobj;
struct elevator_type *elevator_type;
+ struct mutex sysfs_lock;
};
/*
extern void elv_dispatch_sort(request_queue_t *, struct request *);
extern void elv_add_request(request_queue_t *, struct request *, int, int);
extern void __elv_add_request(request_queue_t *, struct request *, int, int);
+extern void elv_insert(request_queue_t *, struct request *, int);
extern int elv_merge(request_queue_t *, struct request **, struct bio *);
extern void elv_merge_requests(request_queue_t *, struct request *,
struct request *);
extern int elevator_init(request_queue_t *, char *);
extern void elevator_exit(elevator_t *);
extern int elv_rq_merge_ok(struct request *, struct bio *);
-extern int elv_try_merge(struct request *, struct bio *);
-extern int elv_try_last_merge(request_queue_t *, struct bio *);
/*
* Return values from elevator merger