/*
 * GPL HEADER START
 *
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 only,
 * as published by the Free Software Foundation.

 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License version 2 for more details.  A copy is
 * included in the COPYING file that accompanied this code.

 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 *
 * GPL HEADER END
 */
/*
 * Copyright (c) 2013, Intel Corporation.
 */
/*
 * lustre/include/lustre_lmv.h
 *
 * Lustre LMV structures and functions.
 *
 * Author: Di Wang <di.wang@intel.com>
 */

#ifndef _LUSTRE_LMV_H
#define _LUSTRE_LMV_H
#include <lustre/lustre_idl.h>

struct lmv_oinfo {
	struct lu_fid	lmo_fid;
	mdsno_t		lmo_mds;
	struct inode	*lmo_root;
};

struct lmv_stripe_md {
	__u32	lsm_md_magic;
	__u32	lsm_md_stripe_count;
	__u32	lsm_md_master_mdt_index;
	__u32	lsm_md_hash_type;
	__u32	lsm_md_layout_version;
	__u32	lsm_md_default_count;
	__u32	lsm_md_default_index;
	char	lsm_md_pool_name[LOV_MAXPOOLNAME];
	struct lmv_oinfo lsm_md_oinfo[0];
};

union lmv_mds_md;

int lmv_pack_md(union lmv_mds_md **lmmp, const struct lmv_stripe_md *lsm,
		       int stripe_count);
int lmv_alloc_md(union lmv_mds_md **lmmp, int stripe_count);
void lmv_free_md(union lmv_mds_md *lmm);
int lmv_alloc_memmd(struct lmv_stripe_md **lsmp, int stripe_count);
void lmv_free_memmd(struct lmv_stripe_md *lsm);
#endif