1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0-only */
2*4882a593Smuzhiyun /******************************************************************************
3*4882a593Smuzhiyun *******************************************************************************
4*4882a593Smuzhiyun **
5*4882a593Smuzhiyun ** Copyright (C) 2005-2007 Red Hat, Inc. All rights reserved.
6*4882a593Smuzhiyun **
7*4882a593Smuzhiyun **
8*4882a593Smuzhiyun *******************************************************************************
9*4882a593Smuzhiyun ******************************************************************************/
10*4882a593Smuzhiyun
11*4882a593Smuzhiyun #ifndef __LOCK_DOT_H__
12*4882a593Smuzhiyun #define __LOCK_DOT_H__
13*4882a593Smuzhiyun
14*4882a593Smuzhiyun void dlm_dump_rsb(struct dlm_rsb *r);
15*4882a593Smuzhiyun void dlm_dump_rsb_name(struct dlm_ls *ls, char *name, int len);
16*4882a593Smuzhiyun void dlm_print_lkb(struct dlm_lkb *lkb);
17*4882a593Smuzhiyun void dlm_receive_message_saved(struct dlm_ls *ls, struct dlm_message *ms,
18*4882a593Smuzhiyun uint32_t saved_seq);
19*4882a593Smuzhiyun void dlm_receive_buffer(union dlm_packet *p, int nodeid);
20*4882a593Smuzhiyun int dlm_modes_compat(int mode1, int mode2);
21*4882a593Smuzhiyun void dlm_put_rsb(struct dlm_rsb *r);
22*4882a593Smuzhiyun void dlm_hold_rsb(struct dlm_rsb *r);
23*4882a593Smuzhiyun int dlm_put_lkb(struct dlm_lkb *lkb);
24*4882a593Smuzhiyun void dlm_scan_rsbs(struct dlm_ls *ls);
25*4882a593Smuzhiyun int dlm_lock_recovery_try(struct dlm_ls *ls);
26*4882a593Smuzhiyun void dlm_unlock_recovery(struct dlm_ls *ls);
27*4882a593Smuzhiyun void dlm_scan_waiters(struct dlm_ls *ls);
28*4882a593Smuzhiyun void dlm_scan_timeout(struct dlm_ls *ls);
29*4882a593Smuzhiyun void dlm_adjust_timeouts(struct dlm_ls *ls);
30*4882a593Smuzhiyun int dlm_master_lookup(struct dlm_ls *ls, int nodeid, char *name, int len,
31*4882a593Smuzhiyun unsigned int flags, int *r_nodeid, int *result);
32*4882a593Smuzhiyun
33*4882a593Smuzhiyun int dlm_search_rsb_tree(struct rb_root *tree, char *name, int len,
34*4882a593Smuzhiyun struct dlm_rsb **r_ret);
35*4882a593Smuzhiyun
36*4882a593Smuzhiyun void dlm_recover_purge(struct dlm_ls *ls);
37*4882a593Smuzhiyun void dlm_purge_mstcpy_locks(struct dlm_rsb *r);
38*4882a593Smuzhiyun void dlm_recover_grant(struct dlm_ls *ls);
39*4882a593Smuzhiyun int dlm_recover_waiters_post(struct dlm_ls *ls);
40*4882a593Smuzhiyun void dlm_recover_waiters_pre(struct dlm_ls *ls);
41*4882a593Smuzhiyun int dlm_recover_master_copy(struct dlm_ls *ls, struct dlm_rcom *rc);
42*4882a593Smuzhiyun int dlm_recover_process_copy(struct dlm_ls *ls, struct dlm_rcom *rc);
43*4882a593Smuzhiyun
44*4882a593Smuzhiyun int dlm_user_request(struct dlm_ls *ls, struct dlm_user_args *ua, int mode,
45*4882a593Smuzhiyun uint32_t flags, void *name, unsigned int namelen,
46*4882a593Smuzhiyun unsigned long timeout_cs);
47*4882a593Smuzhiyun int dlm_user_convert(struct dlm_ls *ls, struct dlm_user_args *ua_tmp,
48*4882a593Smuzhiyun int mode, uint32_t flags, uint32_t lkid, char *lvb_in,
49*4882a593Smuzhiyun unsigned long timeout_cs);
50*4882a593Smuzhiyun int dlm_user_adopt_orphan(struct dlm_ls *ls, struct dlm_user_args *ua_tmp,
51*4882a593Smuzhiyun int mode, uint32_t flags, void *name, unsigned int namelen,
52*4882a593Smuzhiyun unsigned long timeout_cs, uint32_t *lkid);
53*4882a593Smuzhiyun int dlm_user_unlock(struct dlm_ls *ls, struct dlm_user_args *ua_tmp,
54*4882a593Smuzhiyun uint32_t flags, uint32_t lkid, char *lvb_in);
55*4882a593Smuzhiyun int dlm_user_cancel(struct dlm_ls *ls, struct dlm_user_args *ua_tmp,
56*4882a593Smuzhiyun uint32_t flags, uint32_t lkid);
57*4882a593Smuzhiyun int dlm_user_purge(struct dlm_ls *ls, struct dlm_user_proc *proc,
58*4882a593Smuzhiyun int nodeid, int pid);
59*4882a593Smuzhiyun int dlm_user_deadlock(struct dlm_ls *ls, uint32_t flags, uint32_t lkid);
60*4882a593Smuzhiyun void dlm_clear_proc_locks(struct dlm_ls *ls, struct dlm_user_proc *proc);
61*4882a593Smuzhiyun
is_master(struct dlm_rsb * r)62*4882a593Smuzhiyun static inline int is_master(struct dlm_rsb *r)
63*4882a593Smuzhiyun {
64*4882a593Smuzhiyun return !r->res_nodeid;
65*4882a593Smuzhiyun }
66*4882a593Smuzhiyun
lock_rsb(struct dlm_rsb * r)67*4882a593Smuzhiyun static inline void lock_rsb(struct dlm_rsb *r)
68*4882a593Smuzhiyun {
69*4882a593Smuzhiyun mutex_lock(&r->res_mutex);
70*4882a593Smuzhiyun }
71*4882a593Smuzhiyun
unlock_rsb(struct dlm_rsb * r)72*4882a593Smuzhiyun static inline void unlock_rsb(struct dlm_rsb *r)
73*4882a593Smuzhiyun {
74*4882a593Smuzhiyun mutex_unlock(&r->res_mutex);
75*4882a593Smuzhiyun }
76*4882a593Smuzhiyun
77*4882a593Smuzhiyun #endif
78*4882a593Smuzhiyun
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