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 dlm_put_rsb(struct dlm_rsb *r);
22void dlm_hold_rsb(struct dlm_rsb *r);
23int dlm_put_lkb(struct dlm_lkb *lkb);
24void dlm_scan_rsbs(struct dlm_ls *ls);
25int dlm_lock_recovery_try(struct dlm_ls *ls);
 
26void dlm_unlock_recovery(struct dlm_ls *ls);
 
 
27
28int 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
31int dlm_search_rsb_tree(struct rb_root *tree, const void *name, int len,
32			struct dlm_rsb **r_ret);
33
34void dlm_recover_purge(struct dlm_ls *ls);
35void dlm_purge_mstcpy_locks(struct dlm_rsb *r);
36void dlm_recover_grant(struct dlm_ls *ls);
37int dlm_recover_waiters_post(struct dlm_ls *ls);
38void dlm_recover_waiters_pre(struct dlm_ls *ls);
39int dlm_recover_master_copy(struct dlm_ls *ls, const struct dlm_rcom *rc,
40			    __le32 *rl_remid, __le32 *rl_result);
41int dlm_recover_process_copy(struct dlm_ls *ls, const struct dlm_rcom *rc,
42			     uint64_t seq);
43
44int dlm_user_request(struct dlm_ls *ls, struct dlm_user_args *ua, int mode,
45	uint32_t flags, void *name, unsigned int namelen);
46int 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);
48int 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);
51int dlm_user_unlock(struct dlm_ls *ls, struct dlm_user_args *ua_tmp,
52	uint32_t flags, uint32_t lkid, char *lvb_in);
53int dlm_user_cancel(struct dlm_ls *ls,  struct dlm_user_args *ua_tmp,
54	uint32_t flags, uint32_t lkid);
55int dlm_user_purge(struct dlm_ls *ls, struct dlm_user_proc *proc,
56	int nodeid, int pid);
57int dlm_user_deadlock(struct dlm_ls *ls, uint32_t flags, uint32_t lkid);
58void dlm_clear_proc_locks(struct dlm_ls *ls, struct dlm_user_proc *proc);
59int 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);
61int dlm_debug_add_lkb_to_waiters(struct dlm_ls *ls, uint32_t lkb_id,
62				 int mstype, int to_nodeid);
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