linux/fs/ocfs2/stackglue.h

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/* -*- 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
struct ocfs2_locking_protocol {
void (*lp_lock_ast)(void *astarg);
void (*lp_blocking_ast)(void *astarg, int level);
void (*lp_unlock_ast)(void *astarg, enum dlm_status status);
};
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);
enum dlm_status 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 */