multipath.h 611 字节
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#ifndef _MULTIPATH_H
#define _MULTIPATH_H

struct multipath_info {
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	struct md_rdev	*rdev;
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};

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struct mpconf {
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	struct mddev			*mddev;
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	struct multipath_info	*multipaths;
	int			raid_disks;
	spinlock_t		device_lock;
	struct list_head	retry_list;

	mempool_t		*pool;
};

/*
 * this is our 'private' 'collective' MULTIPATH buffer head.
 * it contains information about what kind of IO operations were started
 * for this MULTIPATH operation, and about their status:
 */

struct multipath_bh {
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	struct mddev			*mddev;
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	struct bio		*master_bio;
	struct bio		bio;
	int			path;
	struct list_head	retry_list;
};
#endif