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[DLM] The core of the DLM for GFS2/CLVM

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This is the core of the distributed lock manager which is required
to use GFS2 as a cluster filesystem. It is also used by CLVM and
can be used as a standalone lock manager independantly of either
of these two projects.

It implements VAX-style locking modes.

Signed-off-by: David Teigland <teigland@redhat.com>
Signed-off-by: Steve Whitehouse <swhiteho@redhat.com>
This commit is contained in:
David Teigland
2006-01-18 09:30:29 +00:00
committed by Steven Whitehouse
parent e473142070
commit e7fd41792f
39 changed files with 12178 additions and 0 deletions
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42
fs/dlm/config.h Normal file
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/******************************************************************************
*******************************************************************************
**
** Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
** Copyright (C) 2004-2005 Red Hat, Inc. All rights reserved.
**
** This copyrighted material is made available to anyone wishing to use,
** modify, copy, or redistribute it subject to the terms and conditions
** of the GNU General Public License v.2.
**
*******************************************************************************
******************************************************************************/
#ifndef __CONFIG_DOT_H__
#define __CONFIG_DOT_H__
#define DLM_MAX_ADDR_COUNT 3
struct dlm_config_info {
int tcp_port;
int buffer_size;
int rsbtbl_size;
int lkbtbl_size;
int dirtbl_size;
int recover_timer;
int toss_secs;
int scan_secs;
};
extern struct dlm_config_info dlm_config;
int dlm_config_init(void);
void dlm_config_exit(void);
int dlm_node_weight(char *lsname, int nodeid);
int dlm_nodeid_list(char *lsname, int **ids_out);
int dlm_nodeid_to_addr(int nodeid, struct sockaddr_storage *addr);
int dlm_addr_to_nodeid(struct sockaddr_storage *addr, int *nodeid);
int dlm_our_nodeid(void);
int dlm_our_addr(struct sockaddr_storage *addr, int num);
#endif /* __CONFIG_DOT_H__ */