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 free_inactive_rsb(struct dlm_rsb *r);
22 void dlm_put_rsb(struct dlm_rsb *r);
23 void dlm_hold_rsb(struct dlm_rsb *r);
24 int dlm_put_lkb(struct dlm_lkb *lkb);
25 int dlm_lock_recovery_try(struct dlm_ls *ls);
26 void dlm_lock_recovery(struct dlm_ls *ls);
27 void dlm_unlock_recovery(struct dlm_ls *ls);
28 void dlm_rsb_scan(struct timer_list *timer);
29 void resume_scan_timer(struct dlm_ls *ls);
30
31 int dlm_master_lookup(struct dlm_ls *ls, int from_nodeid, const char *name,
32 int len, unsigned int flags, int *r_nodeid, int *result);
33
34 int dlm_search_rsb_tree(struct rhashtable *rhash, const void *name, int len,
35 struct dlm_rsb **r_ret);
36
37 void dlm_recover_purge(struct dlm_ls *ls, const struct list_head *root_list);
38 void dlm_purge_mstcpy_locks(struct dlm_rsb *r);
39 void dlm_recover_grant(struct dlm_ls *ls);
40 int dlm_recover_waiters_post(struct dlm_ls *ls);
41 void dlm_recover_waiters_pre(struct dlm_ls *ls);
42 int dlm_recover_master_copy(struct dlm_ls *ls, const struct dlm_rcom *rc,
43 __le32 *rl_remid, __le32 *rl_result);
44 int dlm_recover_process_copy(struct dlm_ls *ls, const struct dlm_rcom *rc,
45 uint64_t seq);
46
47 int dlm_user_request(struct dlm_ls *ls, struct dlm_user_args *ua, int mode,
48 uint32_t flags, void *name, unsigned int namelen);
49 int dlm_user_convert(struct dlm_ls *ls, struct dlm_user_args *ua_tmp,
50 int mode, uint32_t flags, uint32_t lkid, char *lvb_in);
51 int dlm_user_adopt_orphan(struct dlm_ls *ls, struct dlm_user_args *ua_tmp,
52 int mode, uint32_t flags, void *name, unsigned int namelen,
53 uint32_t *lkid);
54 int dlm_user_unlock(struct dlm_ls *ls, struct dlm_user_args *ua_tmp,
55 uint32_t flags, uint32_t lkid, char *lvb_in);
56 int dlm_user_cancel(struct dlm_ls *ls, struct dlm_user_args *ua_tmp,
57 uint32_t flags, uint32_t lkid);
58 int dlm_user_purge(struct dlm_ls *ls, struct dlm_user_proc *proc,
59 int nodeid, int pid);
60 int dlm_user_deadlock(struct dlm_ls *ls, uint32_t flags, uint32_t lkid);
61 void dlm_clear_proc_locks(struct dlm_ls *ls, struct dlm_user_proc *proc);
62 int dlm_debug_add_lkb(struct dlm_ls *ls, uint32_t lkb_id, char *name, int len,
63 int lkb_nodeid, unsigned int lkb_flags, int lkb_status);
64 int dlm_debug_add_lkb_to_waiters(struct dlm_ls *ls, uint32_t lkb_id,
65 int mstype, int to_nodeid);
66
67 static inline int is_master(struct dlm_rsb *r)
68 {
69 return !r->res_nodeid;
70 }
71
72 static inline void lock_rsb(struct dlm_rsb *r)
73 {
74 spin_lock_bh(&r->res_lock);
75 }
76
77 static inline void unlock_rsb(struct dlm_rsb *r)
78 {
79 spin_unlock_bh(&r->res_lock);
80 }
81
82 #endif
83
84
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