staging/lustre: remove lu_target.h

/*

 * 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 LICENSE file that accompanied this code).

 *

 * You should have received a copy of the GNU General Public License

 * version 2 along with this program; If not, see

 * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf

 *

 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

 * CA 95054 USA or visit www.sun.com if you need additional information or

 * have any questions.

 *

 * GPL HEADER END

 */

/*

 * Copyright (c) 2009, 2010, Oracle and/or its affiliates. All rights reserved.

 * Use is subject to license terms.

 *

 * Copyright (c) 2011, 2012, Intel Corporation.

 */

/*

 * This file is part of Lustre, http://www.lustre.org/

 * Lustre is a trademark of Sun Microsystems, Inc.

 */

#ifndef _LUSTRE_LU_TARGET_H

#define _LUSTRE_LU_TARGET_H

#include <dt_object.h>

#include <lustre_disk.h>

struct lu_target {

	struct obd_device       *lut_obd;

	struct dt_device	*lut_bottom;

	/** last_rcvd file */

	struct dt_object	*lut_last_rcvd;

	/* transaction callbacks */

	struct dt_txn_callback   lut_txn_cb;

	/** server data in last_rcvd file */

	struct lr_server_data    lut_lsd;

	/** Server last transaction number */

	__u64		    lut_last_transno;

	/** Lock protecting last transaction number */

	spinlock_t		 lut_translock;

	/** Lock protecting client bitmap */

	spinlock_t		 lut_client_bitmap_lock;

	/** Bitmap of known clients */

	unsigned long	   *lut_client_bitmap;

};

typedef void (*tgt_cb_t)(struct lu_target *lut, __u64 transno,

			 void *data, int err);

struct tgt_commit_cb {

	tgt_cb_t  tgt_cb_func;

	void     *tgt_cb_data;

};

void tgt_boot_epoch_update(struct lu_target *lut);

int tgt_last_commit_cb_add(struct thandle *th, struct lu_target *lut,

			   struct obd_export *exp, __u64 transno);

int tgt_new_client_cb_add(struct thandle *th, struct obd_export *exp);

int tgt_init(const struct lu_env *env, struct lu_target *lut,

	     struct obd_device *obd, struct dt_device *dt);

void tgt_fini(const struct lu_env *env, struct lu_target *lut);

int tgt_client_alloc(struct obd_export *exp);

void tgt_client_free(struct obd_export *exp);

int tgt_client_del(const struct lu_env *env, struct obd_export *exp);

int tgt_client_add(const struct lu_env *env, struct obd_export *exp, int);

int tgt_client_new(const struct lu_env *env, struct obd_export *exp);

int tgt_client_data_read(const struct lu_env *env, struct lu_target *tg,

			 struct lsd_client_data *lcd, loff_t *off, int index);

int tgt_client_data_write(const struct lu_env *env, struct lu_target *tg,

			  struct lsd_client_data *lcd, loff_t *off, struct thandle *th);

int tgt_server_data_read(const struct lu_env *env, struct lu_target *tg);

int tgt_server_data_write(const struct lu_env *env, struct lu_target *tg,

			  struct thandle *th);

int tgt_server_data_update(const struct lu_env *env, struct lu_target *tg, int sync);

int tgt_truncate_last_rcvd(const struct lu_env *env, struct lu_target *tg, loff_t off);

#endif /* __LUSTRE_LU_TARGET_H */