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/* -*- mode: c; c-basic-offset: 8; -*-
* vim: noexpandtab sw=8 ts=8 sts=0:
*
* stackglue.c
*
* Code which implements an OCFS2 specific interface to underlying
* cluster stacks.
*
* 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.
*/
#include <linux/types.h>
#include <linux/list.h>
#include "dlm/dlmapi.h"
#include "stackglue.h"
static struct ocfs2_locking_protocol *lproto;
enum dlm_status ocfs2_dlm_lock(struct dlm_ctxt *dlm,
int mode,
struct dlm_lockstatus *lksb,
u32 flags,
void *name,
unsigned int namelen,
void *astarg)
{
BUG_ON(lproto == NULL);
return dlmlock(dlm, mode, lksb, flags, name, namelen,
lproto->lp_lock_ast, astarg,
lproto->lp_blocking_ast);
}
enum dlm_status ocfs2_dlm_unlock(struct dlm_ctxt *dlm,
struct dlm_lockstatus *lksb,
u32 flags,
void *astarg)
{
BUG_ON(lproto == NULL);
return dlmunlock(dlm, lksb, flags, lproto->lp_unlock_ast, astarg);
}
void o2cb_get_stack(struct ocfs2_locking_protocol *proto)
{
BUG_ON(proto == NULL);
lproto = proto;
}
void o2cb_put_stack(void)
{
lproto = NULL;
}
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