mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-24 13:13:57 +08:00
a8ca889ed9
Both existing instances always return 0 and even if they didn't, the value would be lost on the way out. Just don't bother... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
97 lines
2.8 KiB
C
97 lines
2.8 KiB
C
/*
|
|
* Copyright © 2003-2010 David Woodhouse <dwmw2@infradead.org>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*
|
|
*/
|
|
|
|
#ifndef __MTD_TRANS_H__
|
|
#define __MTD_TRANS_H__
|
|
|
|
#include <linux/mutex.h>
|
|
#include <linux/kref.h>
|
|
#include <linux/sysfs.h>
|
|
#include <linux/workqueue.h>
|
|
|
|
struct hd_geometry;
|
|
struct mtd_info;
|
|
struct mtd_blktrans_ops;
|
|
struct file;
|
|
struct inode;
|
|
|
|
struct mtd_blktrans_dev {
|
|
struct mtd_blktrans_ops *tr;
|
|
struct list_head list;
|
|
struct mtd_info *mtd;
|
|
struct mutex lock;
|
|
int devnum;
|
|
bool bg_stop;
|
|
unsigned long size;
|
|
int readonly;
|
|
int open;
|
|
struct kref ref;
|
|
struct gendisk *disk;
|
|
struct attribute_group *disk_attributes;
|
|
struct workqueue_struct *wq;
|
|
struct work_struct work;
|
|
struct request_queue *rq;
|
|
spinlock_t queue_lock;
|
|
void *priv;
|
|
fmode_t file_mode;
|
|
};
|
|
|
|
struct mtd_blktrans_ops {
|
|
char *name;
|
|
int major;
|
|
int part_bits;
|
|
int blksize;
|
|
int blkshift;
|
|
|
|
/* Access functions */
|
|
int (*readsect)(struct mtd_blktrans_dev *dev,
|
|
unsigned long block, char *buffer);
|
|
int (*writesect)(struct mtd_blktrans_dev *dev,
|
|
unsigned long block, char *buffer);
|
|
int (*discard)(struct mtd_blktrans_dev *dev,
|
|
unsigned long block, unsigned nr_blocks);
|
|
void (*background)(struct mtd_blktrans_dev *dev);
|
|
|
|
/* Block layer ioctls */
|
|
int (*getgeo)(struct mtd_blktrans_dev *dev, struct hd_geometry *geo);
|
|
int (*flush)(struct mtd_blktrans_dev *dev);
|
|
|
|
/* Called with mtd_table_mutex held; no race with add/remove */
|
|
int (*open)(struct mtd_blktrans_dev *dev);
|
|
void (*release)(struct mtd_blktrans_dev *dev);
|
|
|
|
/* Called on {de,}registration and on subsequent addition/removal
|
|
of devices, with mtd_table_mutex held. */
|
|
void (*add_mtd)(struct mtd_blktrans_ops *tr, struct mtd_info *mtd);
|
|
void (*remove_dev)(struct mtd_blktrans_dev *dev);
|
|
|
|
struct list_head devs;
|
|
struct list_head list;
|
|
struct module *owner;
|
|
};
|
|
|
|
extern int register_mtd_blktrans(struct mtd_blktrans_ops *tr);
|
|
extern int deregister_mtd_blktrans(struct mtd_blktrans_ops *tr);
|
|
extern int add_mtd_blktrans_dev(struct mtd_blktrans_dev *dev);
|
|
extern int del_mtd_blktrans_dev(struct mtd_blktrans_dev *dev);
|
|
extern int mtd_blktrans_cease_background(struct mtd_blktrans_dev *dev);
|
|
|
|
|
|
#endif /* __MTD_TRANS_H__ */
|