patch-2.4.0-test2 linux/include/linux/raid5.h

• Lines: 111
• Date: Wed Dec 31 16:00:00 1969
• Orig file: v2.4.0-test1/linux/include/linux/raid5.h
• Orig date: Wed May 12 08:41:15 1999

diff -u --recursive --new-file v2.4.0-test1/linux/include/linux/raid5.h linux/include/linux/raid5.h
@@ -1,110 +0,0 @@
-#ifndef _RAID5_H
-#define _RAID5_H
-
-#ifdef __KERNEL__
-#include <linux/md.h>
-#include <asm/atomic.h>
-
-struct disk_info {
-	kdev_t	dev;
-	int	operational;
-	int	number;
-	int	raid_disk;
-	int	write_only;
-	int	spare;
-};
-
-struct stripe_head {
-	struct stripe_head	*hash_next, **hash_pprev; /* hash pointers */
-	struct stripe_head	*free_next;		/* pool of free sh's */
-	struct buffer_head	*buffer_pool;		/* pool of free buffers */
-	struct buffer_head	*bh_pool;		/* pool of free bh's */
-	struct raid5_data	*raid_conf;
-	struct buffer_head	*bh_old[MD_SB_DISKS];	/* disk image */
-	struct buffer_head	*bh_new[MD_SB_DISKS];	/* buffers of the MD device (present in buffer cache) */
-	struct buffer_head	*bh_copy[MD_SB_DISKS];	/* copy on write of bh_new (bh_new can change from under us) */
-	struct buffer_head	*bh_req[MD_SB_DISKS];	/* copy of bh_new (only the buffer heads), queued to the lower levels */
-	int			cmd_new[MD_SB_DISKS];	/* READ/WRITE for new */
-	int			new[MD_SB_DISKS];	/* buffer added since the last handle_stripe() */
-	unsigned long		sector;			/* sector of this row */
-	int			size;			/* buffers size */
-	int			pd_idx;			/* parity disk index */
-	int			nr_pending;		/* nr of pending cmds */
-	unsigned long		state;			/* state flags */
-	int			cmd;			/* stripe cmd */
-	int			count;			/* nr of waiters */
-	int			write_method;		/* reconstruct-write / read-modify-write */
-	int			phase;			/* PHASE_BEGIN, ..., PHASE_COMPLETE */
-	wait_queue_head_t	wait;			/* processes waiting for this stripe */
-};
-
-/*
- * Phase
- */
-#define PHASE_BEGIN		0
-#define PHASE_READ_OLD		1
-#define PHASE_WRITE		2
-#define PHASE_READ		3
-#define PHASE_COMPLETE		4
-
-/*
- * Write method
- */
-#define METHOD_NONE		0
-#define RECONSTRUCT_WRITE	1
-#define READ_MODIFY_WRITE	2
-
-/*
- * Stripe state
- */
-#define STRIPE_LOCKED		0
-#define STRIPE_ERROR		1
-
-/*
- * Stripe commands
- */
-#define STRIPE_NONE		0
-#define	STRIPE_WRITE		1
-#define STRIPE_READ		2
-
-struct raid5_data {
-	struct stripe_head	**stripe_hashtbl;
-	struct md_dev		*mddev;
-	struct md_thread	*thread, *resync_thread;
-	struct disk_info	disks[MD_SB_DISKS];
-	struct disk_info	*spare;
-	int			buffer_size;
-	int			chunk_size, level, algorithm;
-	int			raid_disks, working_disks, failed_disks;
-	int			sector_count;
-	unsigned long		next_sector;
-	atomic_t		nr_handle;
-	struct stripe_head	*next_free_stripe;
-	int			nr_stripes;
-	int			resync_parity;
-	int			max_nr_stripes;
-	int			clock;
-	int			nr_hashed_stripes;
-	int			nr_locked_stripes;
-	int			nr_pending_stripes;
-	int			nr_cached_stripes;
-
-	/*
-	 * Free stripes pool
-	 */
-	int			nr_free_sh;
-	struct stripe_head	*free_sh_list;
-	wait_queue_head_t	wait_for_stripe;
-};
-
-#endif
-
-/*
- * Our supported algorithms
- */
-#define ALGORITHM_LEFT_ASYMMETRIC	0
-#define ALGORITHM_RIGHT_ASYMMETRIC	1
-#define ALGORITHM_LEFT_SYMMETRIC	2
-#define ALGORITHM_RIGHT_SYMMETRIC	3
-
-#endif