lock.h 2.6 KB
Newer Older
1 2 3
/******************************************************************************
*******************************************************************************
**
4
**  Copyright (C) 2005-2007 Red Hat, Inc.  All rights reserved.
5 6 7 8 9 10 11 12 13 14 15 16
**
**  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 __LOCK_DOT_H__
#define __LOCK_DOT_H__

void dlm_print_rsb(struct dlm_rsb *r);
17
void dlm_dump_rsb(struct dlm_rsb *r);
D
David Teigland 已提交
18
void dlm_print_lkb(struct dlm_lkb *lkb);
19 20
void dlm_receive_message_saved(struct dlm_ls *ls, struct dlm_message *ms);
void dlm_receive_buffer(struct dlm_header *hd, int nodeid);
21 22 23 24 25
int dlm_modes_compat(int mode1, int mode2);
void dlm_put_rsb(struct dlm_rsb *r);
void dlm_hold_rsb(struct dlm_rsb *r);
int dlm_put_lkb(struct dlm_lkb *lkb);
void dlm_scan_rsbs(struct dlm_ls *ls);
26 27
int dlm_lock_recovery_try(struct dlm_ls *ls);
void dlm_unlock_recovery(struct dlm_ls *ls);
28 29
void dlm_scan_timeout(struct dlm_ls *ls);
void dlm_adjust_timeouts(struct dlm_ls *ls);
30 31 32

int dlm_purge_locks(struct dlm_ls *ls);
void dlm_purge_mstcpy_locks(struct dlm_rsb *r);
33
void dlm_grant_after_purge(struct dlm_ls *ls);
34 35 36 37 38
int dlm_recover_waiters_post(struct dlm_ls *ls);
void dlm_recover_waiters_pre(struct dlm_ls *ls);
int dlm_recover_master_copy(struct dlm_ls *ls, struct dlm_rcom *rc);
int dlm_recover_process_copy(struct dlm_ls *ls, struct dlm_rcom *rc);

D
David Teigland 已提交
39
int dlm_user_request(struct dlm_ls *ls, struct dlm_user_args *ua, int mode,
40 41
	uint32_t flags, void *name, unsigned int namelen,
	unsigned long timeout_cs);
D
David Teigland 已提交
42
int dlm_user_convert(struct dlm_ls *ls, struct dlm_user_args *ua_tmp,
43 44
	int mode, uint32_t flags, uint32_t lkid, char *lvb_in,
	unsigned long timeout_cs);
D
David Teigland 已提交
45 46 47 48
int dlm_user_unlock(struct dlm_ls *ls, struct dlm_user_args *ua_tmp,
	uint32_t flags, uint32_t lkid, char *lvb_in);
int dlm_user_cancel(struct dlm_ls *ls,  struct dlm_user_args *ua_tmp,
	uint32_t flags, uint32_t lkid);
D
David Teigland 已提交
49 50
int dlm_user_purge(struct dlm_ls *ls, struct dlm_user_proc *proc,
	int nodeid, int pid);
D
David Teigland 已提交
51
int dlm_user_deadlock(struct dlm_ls *ls, uint32_t flags, uint32_t lkid);
D
David Teigland 已提交
52 53
void dlm_clear_proc_locks(struct dlm_ls *ls, struct dlm_user_proc *proc);

54 55 56 57 58 59 60
static inline int is_master(struct dlm_rsb *r)
{
	return !r->res_nodeid;
}

static inline void lock_rsb(struct dlm_rsb *r)
{
61
	mutex_lock(&r->res_mutex);
62 63 64 65
}

static inline void unlock_rsb(struct dlm_rsb *r)
{
66
	mutex_unlock(&r->res_mutex);
67 68 69 70
}

#endif