[net-next-2.6.git] / fs / ocfs2 / stackglue.h

/* -*- mode: c; c-basic-offset: 8; -*-
 * vim: noexpandtab sw=8 ts=8 sts=0:
 *
 * stackglue.h
 *
 * Glue to the underlying cluster stack.
 *
 * Copyright (C) 2007 Oracle.  All rights reserved.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public
 * License as published by the Free Software Foundation, version 2.
 *
 * 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 for more details.
 */


#ifndef STACKGLUE_H
#define STACKGLUE_H

#include <linux/types.h>
#include <linux/list.h>
#include <linux/dlmconstants.h>

/*
 * dlmconstants.h does not have a LOCAL flag.  We hope to remove it
 * some day, but right now we need it.  Let's fake it.  This value is larger
 * than any flag in dlmconstants.h.
 */
#define DLM_LKF_LOCAL		0x00100000

#include "dlm/dlmapi.h"

struct ocfs2_locking_protocol {
	void (*lp_lock_ast)(void *astarg);
	void (*lp_blocking_ast)(void *astarg, int level);
	void (*lp_unlock_ast)(void *astarg, int error);
};

int ocfs2_dlm_lock(struct dlm_ctxt *dlm,
		   int mode,
		   struct dlm_lockstatus *lksb,
		   u32 flags,
		   void *name,
		   unsigned int namelen,
		   void *astarg);
int ocfs2_dlm_unlock(struct dlm_ctxt *dlm,
		     struct dlm_lockstatus *lksb,
		     u32 flags,
		     void *astarg);

void o2cb_get_stack(struct ocfs2_locking_protocol *proto);
void o2cb_put_stack(void);

#endif  /* STACKGLUE_H */
Commit	Line	Data
24ef1815 JB	1	/* -- mode: c; c-basic-offset: 8; --
	2	* vim: noexpandtab sw=8 ts=8 sts=0:
	3	*
	4	* stackglue.h
	5	*
	6	* Glue to the underlying cluster stack.
	7	*
	8	* Copyright (C) 2007 Oracle. All rights reserved.
	9	*
	10	* This program is free software; you can redistribute it and/or
	11	* modify it under the terms of the GNU General Public
	12	* License as published by the Free Software Foundation, version 2.
	13	*
	14	* This program is distributed in the hope that it will be useful,
	15	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	16	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	17	* General Public License for more details.
	18	*/
	19
	20
	21	#ifndef STACKGLUE_H
	22	#define STACKGLUE_H
	23
bd3e7610 JB	24	#include <linux/types.h>
	25	#include <linux/list.h>
	26	#include <linux/dlmconstants.h>
	27
	28	/*
	29	* dlmconstants.h does not have a LOCAL flag. We hope to remove it
	30	* some day, but right now we need it. Let's fake it. This value is larger
	31	* than any flag in dlmconstants.h.
	32	*/
	33	#define DLM_LKF_LOCAL 0x00100000
	34
	35	#include "dlm/dlmapi.h"
	36
24ef1815 JB	37	struct ocfs2_locking_protocol {
	38	void (lp_lock_ast)(void astarg);
	39	void (lp_blocking_ast)(void astarg, int level);
7431cd7e	40	void (lp_unlock_ast)(void astarg, int error);
24ef1815 JB	41	};
24ef1815 JB	42
7431cd7e	43	int ocfs2_dlm_lock(struct dlm_ctxt *dlm,
24ef1815 JB	44	int mode,
	45	struct dlm_lockstatus *lksb,
	46	u32 flags,
	47	void *name,
	48	unsigned int namelen,
	49	void *astarg);
7431cd7e	50	int ocfs2_dlm_unlock(struct dlm_ctxt *dlm,
24ef1815 JB	51	struct dlm_lockstatus *lksb,
	52	u32 flags,
	53	void *astarg);
	54
	55	void o2cb_get_stack(struct ocfs2_locking_protocol *proto);
	56	void o2cb_put_stack(void);
	57
	58	#endif /* STACKGLUE_H */