/*
   md.h : Multiple Devices driver for Linux
          Copyright (C) 1996-98 Ingo Molnar, Gadi Oxman
          Copyright (C) 1994-96 Marc ZYNGIER
	  <zyngier@ufr-info-p7.ibp.fr> or
	  <maz@gloups.fdn.fr>
	  
   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.  
*/

#ifndef _MD_H
#define _MD_H

#include <linux/blkdev.h>
#include <asm/semaphore.h>
#include <linux/major.h>
#include <linux/ioctl.h>
#include <linux/types.h>
#include <linux/bitops.h>
#include <linux/module.h>
#include <linux/hdreg.h>
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
#include <linux/smp_lock.h>
#include <linux/delay.h>
#include <net/checksum.h>
#include <linux/random.h>
#include <linux/kernel_stat.h>
#include <asm/io.h>
#include <linux/completion.h>
#include <linux/mempool.h>
#include <linux/list.h>
#include <linux/reboot.h>
#include <linux/vmalloc.h>
#include <linux/blkpg.h>

/*
 * 'md_p.h' holds the 'physical' layout of RAID devices
 * 'md_u.h' holds the user <=> kernel API
 *
 * 'md_k.h' holds kernel internal definitions
 */

#include <linux/raid/md_p.h>
#include <linux/raid/md_u.h>
#include <linux/raid/md_k.h>

/*
 * Different major versions are not compatible.
 * Different minor versions are only downward compatible.
 * Different patchlevel versions are downward and upward compatible.
 */
#define MD_MAJOR_VERSION                0
#define MD_MINOR_VERSION                90
#define MD_PATCHLEVEL_VERSION           0

/*
 * XXX(hch): This function is broken.  Someone who understands the md
 * code needs to go through all callers, check whether bdev could
 * be NULL and replace it with direct calls to bdevmame.
 *
 * This would also fix the returns buffer on stack issue nicely :)
 */
static inline const char *bdev_partition_name (struct block_device *bdev)
{
	char b[BDEVNAME_SIZE];

	if (!bdev)
		return __bdevname(0, b);
	return bdevname(bdev, b);
}
extern int register_md_personality (int p_num, mdk_personality_t *p);
extern int unregister_md_personality (int p_num);
extern mdk_thread_t * md_register_thread (void (*run) (mddev_t *mddev),
				mddev_t *mddev, const char *name);
extern void md_unregister_thread (mdk_thread_t *thread);
extern void md_wakeup_thread(mdk_thread_t *thread);
extern void md_check_recovery(mddev_t *mddev);
extern void md_interrupt_thread (mdk_thread_t *thread);
extern void md_write_start(mddev_t *mddev);
extern void md_write_end(mddev_t *mddev);
extern void md_handle_safemode(mddev_t *mddev);
extern void md_done_sync(mddev_t *mddev, int blocks, int ok);
extern void md_sync_acct(mdk_rdev_t *rdev, unsigned long nr_sectors);
extern void md_error (mddev_t *mddev, mdk_rdev_t *rdev);

extern void md_print_devices (void);

#define MD_BUG(x...) { printk("md: bug in file %s, line %d\n", __FILE__, __LINE__); md_print_devices(); }

#endif 

