1/* SPDX-License-Identifier: GPL-2.0-only */
 2/******************************************************************************
 3*******************************************************************************
 4**
 5**  Copyright (C) 2005-2007 Red Hat, Inc.  All rights reserved.
 6**
 7**
 8*******************************************************************************
 9******************************************************************************/
10
11#ifndef __LOCK_DOT_H__
12#define __LOCK_DOT_H__
13
14void dlm_dump_rsb(struct dlm_rsb *r);
15void dlm_dump_rsb_name(struct dlm_ls *ls, char *name, int len);
16void dlm_print_lkb(struct dlm_lkb *lkb);
17void dlm_receive_message_saved(struct dlm_ls *ls, struct dlm_message *ms,
18			       uint32_t saved_seq);
19void dlm_receive_buffer(union dlm_packet *p, int nodeid);
20int dlm_modes_compat(int mode1, int mode2);
21void dlm_put_rsb(struct dlm_rsb *r);
22void dlm_hold_rsb(struct dlm_rsb *r);
23int dlm_put_lkb(struct dlm_lkb *lkb);
24void dlm_scan_rsbs(struct dlm_ls *ls);
25int dlm_lock_recovery_try(struct dlm_ls *ls);
26void dlm_unlock_recovery(struct dlm_ls *ls);
27void dlm_scan_waiters(struct dlm_ls *ls);
28void dlm_scan_timeout(struct dlm_ls *ls);
29void dlm_adjust_timeouts(struct dlm_ls *ls);
30int dlm_master_lookup(struct dlm_ls *ls, int nodeid, char *name, int len,
31		      unsigned int flags, int *r_nodeid, int *result);
32
33int dlm_search_rsb_tree(struct rb_root *tree, char *name, int len,
34			struct dlm_rsb **r_ret);
35
36void dlm_recover_purge(struct dlm_ls *ls);
37void dlm_purge_mstcpy_locks(struct dlm_rsb *r);
38void dlm_recover_grant(struct dlm_ls *ls);
39int dlm_recover_waiters_post(struct dlm_ls *ls);
40void dlm_recover_waiters_pre(struct dlm_ls *ls);
41int dlm_recover_master_copy(struct dlm_ls *ls, struct dlm_rcom *rc);
42int dlm_recover_process_copy(struct dlm_ls *ls, struct dlm_rcom *rc);
43
44int dlm_user_request(struct dlm_ls *ls, struct dlm_user_args *ua, int mode,
45	uint32_t flags, void *name, unsigned int namelen,
46	unsigned long timeout_cs);
47int dlm_user_convert(struct dlm_ls *ls, struct dlm_user_args *ua_tmp,
48	int mode, uint32_t flags, uint32_t lkid, char *lvb_in,
49	unsigned long timeout_cs);
50int dlm_user_adopt_orphan(struct dlm_ls *ls, struct dlm_user_args *ua_tmp,
51	int mode, uint32_t flags, void *name, unsigned int namelen,
52	unsigned long timeout_cs, uint32_t *lkid);
53int dlm_user_unlock(struct dlm_ls *ls, struct dlm_user_args *ua_tmp,
54	uint32_t flags, uint32_t lkid, char *lvb_in);
55int dlm_user_cancel(struct dlm_ls *ls,  struct dlm_user_args *ua_tmp,
56	uint32_t flags, uint32_t lkid);
57int dlm_user_purge(struct dlm_ls *ls, struct dlm_user_proc *proc,
58	int nodeid, int pid);
59int dlm_user_deadlock(struct dlm_ls *ls, uint32_t flags, uint32_t lkid);
60void dlm_clear_proc_locks(struct dlm_ls *ls, struct dlm_user_proc *proc);
61
62static inline int is_master(struct dlm_rsb *r)
63{
64	return !r->res_nodeid;
65}
66
67static inline void lock_rsb(struct dlm_rsb *r)
68{
69	mutex_lock(&r->res_mutex);
70}
71
72static inline void unlock_rsb(struct dlm_rsb *r)
73{
74	mutex_unlock(&r->res_mutex);
75}
76
77#endif
78