1/******************************************************************************
 2*******************************************************************************
 3**
 4**  Copyright (C) 2005-2007 Red Hat, Inc.  All rights reserved.
 5**
 6**  This copyrighted material is made available to anyone wishing to use,
 7**  modify, copy, or redistribute it subject to the terms and conditions
 8**  of the GNU General Public License v.2.
 9**
10*******************************************************************************
11******************************************************************************/
12
13#ifndef __LOCK_DOT_H__
14#define __LOCK_DOT_H__
15
16void dlm_dump_rsb(struct dlm_rsb *r);
17void dlm_dump_rsb_name(struct dlm_ls *ls, char *name, int len);
18void dlm_print_lkb(struct dlm_lkb *lkb);
19void dlm_receive_message_saved(struct dlm_ls *ls, struct dlm_message *ms,
20			       uint32_t saved_seq);
21void dlm_receive_buffer(union dlm_packet *p, int nodeid);
22int dlm_modes_compat(int mode1, int mode2);
 
23void dlm_put_rsb(struct dlm_rsb *r);
24void dlm_hold_rsb(struct dlm_rsb *r);
25int dlm_put_lkb(struct dlm_lkb *lkb);
26void dlm_scan_rsbs(struct dlm_ls *ls);
27int dlm_lock_recovery_try(struct dlm_ls *ls);
 
28void dlm_unlock_recovery(struct dlm_ls *ls);
29void dlm_scan_waiters(struct dlm_ls *ls);
30void dlm_scan_timeout(struct dlm_ls *ls);
31void dlm_adjust_timeouts(struct dlm_ls *ls);
32int dlm_master_lookup(struct dlm_ls *ls, int nodeid, char *name, int len,
33		      unsigned int flags, int *r_nodeid, int *result);
34
35int dlm_search_rsb_tree(struct rb_root *tree, char *name, int len,
 
 
 
36			struct dlm_rsb **r_ret);
37
38void dlm_recover_purge(struct dlm_ls *ls);
39void dlm_purge_mstcpy_locks(struct dlm_rsb *r);
40void dlm_recover_grant(struct dlm_ls *ls);
41int dlm_recover_waiters_post(struct dlm_ls *ls);
42void dlm_recover_waiters_pre(struct dlm_ls *ls);
43int dlm_recover_master_copy(struct dlm_ls *ls, struct dlm_rcom *rc);
44int dlm_recover_process_copy(struct dlm_ls *ls, struct dlm_rcom *rc);
 
 
45
46int dlm_user_request(struct dlm_ls *ls, struct dlm_user_args *ua, int mode,
47	uint32_t flags, void *name, unsigned int namelen,
48	unsigned long timeout_cs);
49int 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	unsigned long timeout_cs);
52int dlm_user_adopt_orphan(struct dlm_ls *ls, struct dlm_user_args *ua_tmp,
53	int mode, uint32_t flags, void *name, unsigned int namelen,
54	unsigned long timeout_cs, uint32_t *lkid);
55int dlm_user_unlock(struct dlm_ls *ls, struct dlm_user_args *ua_tmp,
56	uint32_t flags, uint32_t lkid, char *lvb_in);
57int dlm_user_cancel(struct dlm_ls *ls,  struct dlm_user_args *ua_tmp,
58	uint32_t flags, uint32_t lkid);
59int dlm_user_purge(struct dlm_ls *ls, struct dlm_user_proc *proc,
60	int nodeid, int pid);
61int dlm_user_deadlock(struct dlm_ls *ls, uint32_t flags, uint32_t lkid);
62void dlm_clear_proc_locks(struct dlm_ls *ls, struct dlm_user_proc *proc);
 
 
 
 
63
64static inline int is_master(struct dlm_rsb *r)
65{
 
 
66	return !r->res_nodeid;
67}
68
69static inline void lock_rsb(struct dlm_rsb *r)
70{
71	mutex_lock(&r->res_mutex);
72}
73
74static inline void unlock_rsb(struct dlm_rsb *r)
75{
76	mutex_unlock(&r->res_mutex);
77}
78
79#endif
80

 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
14void dlm_dump_rsb(struct dlm_rsb *r);
15void dlm_dump_rsb_name(struct dlm_ls *ls, const char *name, int len);
16void dlm_print_lkb(struct dlm_lkb *lkb);
17void dlm_receive_message_saved(struct dlm_ls *ls, const struct dlm_message *ms,
18			       uint32_t saved_seq);
19void dlm_receive_buffer(const union dlm_packet *p, int nodeid);
20int dlm_modes_compat(int mode1, int mode2);
21void free_inactive_rsb(struct dlm_rsb *r);
22void dlm_put_rsb(struct dlm_rsb *r);
23void dlm_hold_rsb(struct dlm_rsb *r);
24int dlm_put_lkb(struct dlm_lkb *lkb);
 
25int dlm_lock_recovery_try(struct dlm_ls *ls);
26void dlm_lock_recovery(struct dlm_ls *ls);
27void dlm_unlock_recovery(struct dlm_ls *ls);
28void dlm_rsb_scan(struct timer_list *timer);
29void resume_scan_timer(struct dlm_ls *ls);
 
 
 
30
31int 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
34int dlm_search_rsb_tree(struct rhashtable *rhash, const void *name, int len,
35			struct dlm_rsb **r_ret);
36
37void dlm_recover_purge(struct dlm_ls *ls, const struct list_head *root_list);
38void dlm_purge_mstcpy_locks(struct dlm_rsb *r);
39void dlm_recover_grant(struct dlm_ls *ls);
40int dlm_recover_waiters_post(struct dlm_ls *ls);
41void dlm_recover_waiters_pre(struct dlm_ls *ls);
42int dlm_recover_master_copy(struct dlm_ls *ls, const struct dlm_rcom *rc,
43			    __le32 *rl_remid, __le32 *rl_result);
44int dlm_recover_process_copy(struct dlm_ls *ls, const struct dlm_rcom *rc,
45			     uint64_t seq);
46
47int dlm_user_request(struct dlm_ls *ls, struct dlm_user_args *ua, int mode,
48	uint32_t flags, void *name, unsigned int namelen);
 
49int 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);
 
51int 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);
54int dlm_user_unlock(struct dlm_ls *ls, struct dlm_user_args *ua_tmp,
55	uint32_t flags, uint32_t lkid, char *lvb_in);
56int dlm_user_cancel(struct dlm_ls *ls,  struct dlm_user_args *ua_tmp,
57	uint32_t flags, uint32_t lkid);
58int dlm_user_purge(struct dlm_ls *ls, struct dlm_user_proc *proc,
59	int nodeid, int pid);
60int dlm_user_deadlock(struct dlm_ls *ls, uint32_t flags, uint32_t lkid);
61void dlm_clear_proc_locks(struct dlm_ls *ls, struct dlm_user_proc *proc);
62int 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);
64int dlm_debug_add_lkb_to_waiters(struct dlm_ls *ls, uint32_t lkb_id,
65				 int mstype, int to_nodeid);
66
67static inline int is_master(struct dlm_rsb *r)
68{
69	WARN_ON_ONCE(r->res_nodeid == -1);
70
71	return !r->res_nodeid;
72}
73
74static inline void lock_rsb(struct dlm_rsb *r)
75{
76	spin_lock_bh(&r->res_lock);
77}
78
79static inline void unlock_rsb(struct dlm_rsb *r)
80{
81	spin_unlock_bh(&r->res_lock);
82}
83
84#endif
85