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, const char *name, int len);
16 void dlm_print_lkb(struct dlm_lkb *lkb);
17 void dlm_receive_message_saved(struct dlm_ls *ls, const struct dlm_message *ms,
18 uint32_t saved_seq);
19 void dlm_receive_buffer(const 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 int dlm_master_lookup(struct dlm_ls *ls, int from_nodeid, const char *name,
29 int len, unsigned int flags, int *r_nodeid, int *result);
30
31 int dlm_search_rsb_tree(struct rb_root *tree, const void *name, int len,
32 struct dlm_rsb **r_ret);
33
34 void dlm_recover_purge(struct dlm_ls *ls);
35 void dlm_purge_mstcpy_locks(struct dlm_rsb *r);
36 void dlm_recover_grant(struct dlm_ls *ls);
37 int dlm_recover_waiters_post(struct dlm_ls *ls);
38 void dlm_recover_waiters_pre(struct dlm_ls *ls);
39 int dlm_recover_master_copy(struct dlm_ls *ls, const struct dlm_rcom *rc,
40 __le32 *rl_remid, __le32 *rl_result);
41 int dlm_recover_process_copy(struct dlm_ls *ls, const struct dlm_rcom *rc,
42 uint64_t seq);
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 int dlm_user_convert(struct dlm_ls *ls, struct dlm_user_args *ua_tmp,
47 int mode, uint32_t flags, uint32_t lkid, char *lvb_in);
48 int dlm_user_adopt_orphan(struct dlm_ls *ls, struct dlm_user_args *ua_tmp,
49 int mode, uint32_t flags, void *name, unsigned int namelen,
50 uint32_t *lkid);
51 int dlm_user_unlock(struct dlm_ls *ls, struct dlm_user_args *ua_tmp,
52 uint32_t flags, uint32_t lkid, char *lvb_in);
53 int dlm_user_cancel(struct dlm_ls *ls, struct dlm_user_args *ua_tmp,
54 uint32_t flags, uint32_t lkid);
55 int dlm_user_purge(struct dlm_ls *ls, struct dlm_user_proc *proc,
56 int nodeid, int pid);
57 int dlm_user_deadlock(struct dlm_ls *ls, uint32_t flags, uint32_t lkid);
58 void dlm_clear_proc_locks(struct dlm_ls *ls, struct dlm_user_proc *proc);
59 int dlm_debug_add_lkb(struct dlm_ls *ls, uint32_t lkb_id, char *name, int len,
60 int lkb_nodeid, unsigned int lkb_flags, int lkb_status);
61 int dlm_debug_add_lkb_to_waiters(struct dlm_ls *ls, uint32_t lkb_id,
62 int mstype, int to_nodeid);
63
is_master(struct dlm_rsb * r)64 static inline int is_master(struct dlm_rsb *r)
65 {
66 return !r->res_nodeid;
67 }
68
lock_rsb(struct dlm_rsb * r)69 static inline void lock_rsb(struct dlm_rsb *r)
70 {
71 mutex_lock(&r->res_mutex);
72 }
73
unlock_rsb(struct dlm_rsb * r)74 static inline void unlock_rsb(struct dlm_rsb *r)
75 {
76 mutex_unlock(&r->res_mutex);
77 }
78
79 #endif
80
81