| /* |
| 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> |
| #include <linux/bio.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> |
| |
| #ifdef CONFIG_MD |
| |
| /* |
| * 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 |
| /* |
| * MD_PATCHLEVEL_VERSION indicates kernel functionality. |
| * >=1 means different superblock formats are selectable using SET_ARRAY_INFO |
| * and major_version/minor_version accordingly |
| * >=2 means that Internal bitmaps are supported by setting MD_SB_BITMAP_PRESENT |
| * in the super status byte |
| * >=3 means that bitmap superblock version 4 is supported, which uses |
| * little-ending representation rather than host-endian |
| */ |
| #define MD_PATCHLEVEL_VERSION 3 |
| |
| extern int register_md_personality (struct mdk_personality *p); |
| extern int unregister_md_personality (struct mdk_personality *p); |
| 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_write_start(mddev_t *mddev, struct bio *bi); |
| 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_error (mddev_t *mddev, mdk_rdev_t *rdev); |
| extern void md_unplug_mddev(mddev_t *mddev); |
| |
| extern void md_super_write(mddev_t *mddev, mdk_rdev_t *rdev, |
| sector_t sector, int size, struct page *page); |
| extern void md_super_wait(mddev_t *mddev); |
| extern int sync_page_io(struct block_device *bdev, sector_t sector, int size, |
| struct page *page, int rw); |
| extern void md_do_sync(mddev_t *mddev); |
| extern void md_new_event(mddev_t *mddev); |
| |
| |
| #endif /* CONFIG_MD */ |
| #endif |
| |