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 void dlm_scan_waiters(struct dlm_ls *ls);
28 void dlm_scan_timeout(struct dlm_ls *ls);
29 void dlm_adjust_timeouts(struct dlm_ls *ls);
30 int dlm_master_lookup(struct dlm_ls *ls, int nodeid, char *name, int len,
31 unsigned int flags, int *r_nodeid, int *result);
32
33 int dlm_search_rsb_tree(struct rb_root *tree, char *name, int len,
34 struct dlm_rsb **r_ret);
35
36 void dlm_recover_purge(struct dlm_ls *ls);
37 void dlm_purge_mstcpy_locks(struct dlm_rsb *r);
38 void dlm_recover_grant(struct dlm_ls *ls);
39 int dlm_recover_waiters_post(struct dlm_ls *ls);
40 void dlm_recover_waiters_pre(struct dlm_ls *ls);
41 int dlm_recover_master_copy(struct dlm_ls *ls, struct dlm_rcom *rc);
42 int dlm_recover_process_copy(struct dlm_ls *ls, struct dlm_rcom *rc);
43
44 int 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);
47 int 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);
50 int 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);
53 int dlm_user_unlock(struct dlm_ls *ls, struct dlm_user_args *ua_tmp,
54 uint32_t flags, uint32_t lkid, char *lvb_in);
55 int dlm_user_cancel(struct dlm_ls *ls, struct dlm_user_args *ua_tmp,
56 uint32_t flags, uint32_t lkid);
57 int dlm_user_purge(struct dlm_ls *ls, struct dlm_user_proc *proc,
58 int nodeid, int pid);
59 int dlm_user_deadlock(struct dlm_ls *ls, uint32_t flags, uint32_t lkid);
60 void dlm_clear_proc_locks(struct dlm_ls *ls, struct dlm_user_proc *proc);
61
is_master(struct dlm_rsb * r)62 static inline int is_master(struct dlm_rsb *r)
63 {
64 return !r->res_nodeid;
65 }
66
lock_rsb(struct dlm_rsb * r)67 static inline void lock_rsb(struct dlm_rsb *r)
68 {
69 mutex_lock(&r->res_mutex);
70 }
71
unlock_rsb(struct dlm_rsb * r)72 static inline void unlock_rsb(struct dlm_rsb *r)
73 {
74 mutex_unlock(&r->res_mutex);
75 }
76
77 #endif
78
79