1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /******************************************************************************
3 *******************************************************************************
5 ** Copyright (C) 2005-2007 Red Hat, Inc. All rights reserved.
8 *******************************************************************************
9 ******************************************************************************/
11 #ifndef __LOCK_DOT_H__
12 #define __LOCK_DOT_H__
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,
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_timeout(struct dlm_ls *ls);
28 void dlm_adjust_timeouts(struct dlm_ls *ls);
29 int dlm_master_lookup(struct dlm_ls *ls, int nodeid, char *name, int len,
30 unsigned int flags, int *r_nodeid, int *result);
32 int dlm_search_rsb_tree(struct rb_root *tree, char *name, int len,
33 struct dlm_rsb **r_ret);
35 void dlm_recover_purge(struct dlm_ls *ls);
36 void dlm_purge_mstcpy_locks(struct dlm_rsb *r);
37 void dlm_recover_grant(struct dlm_ls *ls);
38 int dlm_recover_waiters_post(struct dlm_ls *ls);
39 void dlm_recover_waiters_pre(struct dlm_ls *ls);
40 int dlm_recover_master_copy(struct dlm_ls *ls, struct dlm_rcom *rc);
41 int dlm_recover_process_copy(struct dlm_ls *ls, struct dlm_rcom *rc);
43 int dlm_user_request(struct dlm_ls *ls, struct dlm_user_args *ua, int mode,
44 uint32_t flags, void *name, unsigned int namelen,
45 unsigned long timeout_cs);
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 unsigned long timeout_cs);
49 int dlm_user_adopt_orphan(struct dlm_ls *ls, struct dlm_user_args *ua_tmp,
50 int mode, uint32_t flags, void *name, unsigned int namelen,
51 unsigned long timeout_cs, uint32_t *lkid);
52 int dlm_user_unlock(struct dlm_ls *ls, struct dlm_user_args *ua_tmp,
53 uint32_t flags, uint32_t lkid, char *lvb_in);
54 int dlm_user_cancel(struct dlm_ls *ls, struct dlm_user_args *ua_tmp,
55 uint32_t flags, uint32_t lkid);
56 int dlm_user_purge(struct dlm_ls *ls, struct dlm_user_proc *proc,
58 int dlm_user_deadlock(struct dlm_ls *ls, uint32_t flags, uint32_t lkid);
59 void dlm_clear_proc_locks(struct dlm_ls *ls, struct dlm_user_proc *proc);
60 int dlm_debug_add_lkb(struct dlm_ls *ls, uint32_t lkb_id, char *name, int len,
61 int lkb_nodeid, unsigned int lkb_flags, int lkb_status);
62 int dlm_debug_add_lkb_to_waiters(struct dlm_ls *ls, uint32_t lkb_id,
63 int mstype, int to_nodeid);
65 static inline int is_master(struct dlm_rsb *r)
67 return !r->res_nodeid;
70 static inline void lock_rsb(struct dlm_rsb *r)
72 mutex_lock(&r->res_mutex);
75 static inline void unlock_rsb(struct dlm_rsb *r)
77 mutex_unlock(&r->res_mutex);