evms_raid0.h

unxi下共享内存的使用

#ifndef _EVMS_RAID0_INCL_
#define _EVMS_RAID0_INCL_

#include <linux/evms/evms_md.h>

struct strip_zone
{
	unsigned long zone_offset;	/* Zone offset (in sectors) in md_dev */
	unsigned long dev_offset;	/* Zone offset (in sectors) in real dev */
	unsigned long size_in_sects;	/* Zone size in sectors */
	int nb_dev;			/* # of devices attached to the zone */
	evms_logical_node_t *node[MD_SB_DISKS]; /* EVMS nodes attached to the zone */
};

struct raid0_hash
{
	struct strip_zone *zone0, *zone1;
};

struct raid0_private_data
{
	struct raid0_hash *hash_table; /* Dynamically allocated */
	struct strip_zone *strip_zone; /* This one too */
	int nr_strip_zones;
	struct strip_zone *smallest;
	int nr_zones;
};

typedef struct raid0_private_data raid0_conf_t;

#define mddev_to_conf(mddev) ((raid0_conf_t *) mddev->private)

#endif