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8f2c9c1b16
Wrap the lock status block (lksb) in a union. Later we will add a union element for the fs/dlm lksb. Create accessors for the status and lvb fields. Other than a debugging function, dlmglue.c does not directly reference the o2dlm locking path anymore. Signed-off-by: Joel Becker <joel.becker@oracle.com> Signed-off-by: Mark Fasheh <mfasheh@suse.com>
66 lines
1.7 KiB
C
66 lines
1.7 KiB
C
/* -*- mode: c; c-basic-offset: 8; -*-
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* vim: noexpandtab sw=8 ts=8 sts=0:
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*
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* stackglue.h
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*
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* Glue to the underlying cluster stack.
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*
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* Copyright (C) 2007 Oracle. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public
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* License as published by the Free Software Foundation, version 2.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*/
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#ifndef STACKGLUE_H
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#define STACKGLUE_H
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#include <linux/types.h>
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#include <linux/list.h>
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#include <linux/dlmconstants.h>
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/*
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* dlmconstants.h does not have a LOCAL flag. We hope to remove it
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* some day, but right now we need it. Let's fake it. This value is larger
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* than any flag in dlmconstants.h.
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*/
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#define DLM_LKF_LOCAL 0x00100000
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#include "dlm/dlmapi.h"
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struct ocfs2_locking_protocol {
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void (*lp_lock_ast)(void *astarg);
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void (*lp_blocking_ast)(void *astarg, int level);
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void (*lp_unlock_ast)(void *astarg, int error);
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};
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union ocfs2_dlm_lksb {
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struct dlm_lockstatus lksb_o2dlm;
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};
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int ocfs2_dlm_lock(struct dlm_ctxt *dlm,
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int mode,
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union ocfs2_dlm_lksb *lksb,
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u32 flags,
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void *name,
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unsigned int namelen,
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void *astarg);
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int ocfs2_dlm_unlock(struct dlm_ctxt *dlm,
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union ocfs2_dlm_lksb *lksb,
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u32 flags,
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void *astarg);
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int ocfs2_dlm_lock_status(union ocfs2_dlm_lksb *lksb);
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void *ocfs2_dlm_lvb(union ocfs2_dlm_lksb *lksb);
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void o2cb_get_stack(struct ocfs2_locking_protocol *proto);
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void o2cb_put_stack(void);
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#endif /* STACKGLUE_H */
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