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
14 void dlm_dump_rsb(struct dlm_rsb *r);
15 void dlm_dump_rsb_name(struct dlm_ls *ls, char *name, int len);
16 void dlm_print_lkb(struct dlm_lkb *lkb);
17 void dlm_receive_message_saved(struct dlm_ls *ls, struct dlm_message *ms,
18 uint32_t saved_seq);
19 void dlm_receive_buffer(union dlm_packet *p, int nodeid);
20 int dlm_modes_compat(int mode1, int mode2);
21 void dlm_put_rsb(struct dlm_rsb *r);
22 void dlm_hold_rsb(struct dlm_rsb *r);
23 int dlm_put_lkb(struct dlm_lkb *lkb);
24 void dlm_scan_rsbs(struct dlm_ls *ls);
25 int dlm_lock_recovery_try(struct dlm_ls *ls);
26 void dlm_unlock_recovery(struct dlm_ls *ls);
27
28 #ifdef CONFIG_DLM_DEPRECATED_API
29 void dlm_scan_timeout(struct dlm_ls *ls);
30 void dlm_adjust_timeouts(struct dlm_ls *ls);
31 #else
dlm_scan_timeout(struct dlm_ls * ls)32 static inline void dlm_scan_timeout(struct dlm_ls *ls) { }
dlm_adjust_timeouts(struct dlm_ls * ls)33 static inline void dlm_adjust_timeouts(struct dlm_ls *ls) { }
34 #endif
35
36 int dlm_master_lookup(struct dlm_ls *ls, int nodeid, char *name, int len,
37 unsigned int flags, int *r_nodeid, int *result);
38
39 int dlm_search_rsb_tree(struct rb_root *tree, const void *name, int len,
40 struct dlm_rsb **r_ret);
41
42 void dlm_recover_purge(struct dlm_ls *ls);
43 void dlm_purge_mstcpy_locks(struct dlm_rsb *r);
44 void dlm_recover_grant(struct dlm_ls *ls);
45 int dlm_recover_waiters_post(struct dlm_ls *ls);
46 void dlm_recover_waiters_pre(struct dlm_ls *ls);
47 int dlm_recover_master_copy(struct dlm_ls *ls, struct dlm_rcom *rc);
48 int dlm_recover_process_copy(struct dlm_ls *ls, struct dlm_rcom *rc);
49
50 #ifdef CONFIG_DLM_DEPRECATED_API
51 int dlm_user_request(struct dlm_ls *ls, struct dlm_user_args *ua, int mode,
52 uint32_t flags, void *name, unsigned int namelen,
53 unsigned long timeout_cs);
54 int dlm_user_convert(struct dlm_ls *ls, struct dlm_user_args *ua_tmp,
55 int mode, uint32_t flags, uint32_t lkid, char *lvb_in,
56 unsigned long timeout_cs);
57 #else
58 int dlm_user_request(struct dlm_ls *ls, struct dlm_user_args *ua, int mode,
59 uint32_t flags, void *name, unsigned int namelen);
60 int dlm_user_convert(struct dlm_ls *ls, struct dlm_user_args *ua_tmp,
61 int mode, uint32_t flags, uint32_t lkid, char *lvb_in);
62 #endif
63 int dlm_user_adopt_orphan(struct dlm_ls *ls, struct dlm_user_args *ua_tmp,
64 int mode, uint32_t flags, void *name, unsigned int namelen,
65 uint32_t *lkid);
66 int dlm_user_unlock(struct dlm_ls *ls, struct dlm_user_args *ua_tmp,
67 uint32_t flags, uint32_t lkid, char *lvb_in);
68 int dlm_user_cancel(struct dlm_ls *ls, struct dlm_user_args *ua_tmp,
69 uint32_t flags, uint32_t lkid);
70 int dlm_user_purge(struct dlm_ls *ls, struct dlm_user_proc *proc,
71 int nodeid, int pid);
72 int dlm_user_deadlock(struct dlm_ls *ls, uint32_t flags, uint32_t lkid);
73 void dlm_clear_proc_locks(struct dlm_ls *ls, struct dlm_user_proc *proc);
74 int dlm_debug_add_lkb(struct dlm_ls *ls, uint32_t lkb_id, char *name, int len,
75 int lkb_nodeid, unsigned int lkb_flags, int lkb_status);
76 int dlm_debug_add_lkb_to_waiters(struct dlm_ls *ls, uint32_t lkb_id,
77 int mstype, int to_nodeid);
78
is_master(struct dlm_rsb * r)79 static inline int is_master(struct dlm_rsb *r)
80 {
81 return !r->res_nodeid;
82 }
83
lock_rsb(struct dlm_rsb * r)84 static inline void lock_rsb(struct dlm_rsb *r)
85 {
86 mutex_lock(&r->res_mutex);
87 }
88
unlock_rsb(struct dlm_rsb * r)89 static inline void unlock_rsb(struct dlm_rsb *r)
90 {
91 mutex_unlock(&r->res_mutex);
92 }
93
94 #endif
95
96