patch-2.4.21 linux-2.4.21/drivers/ide/raid/ataraid.h

• Lines: 73
• Date: 2003-06-13 07:51:34.000000000 -0700
• Orig file: linux-2.4.20/drivers/ide/raid/ataraid.h
• Orig date: 1969-12-31 16:00:00.000000000 -0800

diff -urN linux-2.4.20/drivers/ide/raid/ataraid.h linux-2.4.21/drivers/ide/raid/ataraid.h
@@ -0,0 +1,72 @@
+/*
+   ataraid.h  Copyright (C) 2001 Red Hat, Inc. All rights reserved.
+
+   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, or (at your option)
+   any later version.
+   
+   You should have received a copy of the GNU General Public License
+   (for example /usr/src/linux/COPYING); if not, write to the Free
+   Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  
+   
+   Authors: 	Arjan van de Ven <arjanv@redhat.com>
+   		
+   
+*/
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <asm/semaphore.h>
+#include <linux/blkdev.h>
+#include <linux/blkpg.h>
+#include <linux/genhd.h>
+#include <linux/ioctl.h>
+
+#include <linux/ide.h>
+#include <asm/uaccess.h>
+
+#define ATAMAJOR 114
+#define SHIFT 4
+#define MINOR_MASK 15
+#define MAJOR_MASK 15
+
+                                        
+/* raid_device_operations is a light struct block_device_operations with an
+   added method for make_request */
+struct raid_device_operations {
+	int (*open) (struct inode *, struct file *);
+	int (*release) (struct inode *, struct file *);
+	int (*ioctl) (struct inode *, struct file *, unsigned, unsigned long);
+	int (*make_request) (request_queue_t *q, int rw, struct buffer_head * bh);
+};
+
+
+struct geom {
+	unsigned char heads;
+	unsigned int cylinders;
+	unsigned char sectors;
+};
+
+/* structure for the splitting of bufferheads */
+
+struct ataraid_bh_private {
+	struct buffer_head *parent;
+	atomic_t count;
+};
+
+extern struct gendisk ataraid_gendisk;
+
+extern int ataraid_get_device(struct raid_device_operations *fops);
+extern void ataraid_release_device(int device);
+extern int get_blocksize(kdev_t dev);
+extern void ataraid_register_disk(int device,long size);
+extern struct buffer_head *ataraid_get_bhead(void);
+extern struct ataraid_bh_private *ataraid_get_private(void);
+extern void ataraid_end_request(struct buffer_head *bh, int uptodate);
+
+
+
+
+