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
16 void dlm_print_rsb(struct dlm_rsb *r);
17 void dlm_dump_rsb(struct dlm_rsb *r);
18 void dlm_print_lkb(struct dlm_lkb *lkb);
19 void dlm_receive_message_saved(struct dlm_ls *ls, struct dlm_message *ms);
20 void dlm_receive_buffer(union dlm_packet *p, int nodeid);
21 int dlm_modes_compat(int mode1, int mode2);
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 void dlm_scan_rsbs(struct dlm_ls *ls);
26 int dlm_lock_recovery_try(struct dlm_ls *ls);
27 void dlm_unlock_recovery(struct dlm_ls *ls);
28 void dlm_scan_timeout(struct dlm_ls *ls);
29 void dlm_adjust_timeouts(struct dlm_ls *ls);
30
31 int dlm_purge_locks(struct dlm_ls *ls);
32 void dlm_purge_mstcpy_locks(struct dlm_rsb *r);
33 void dlm_grant_after_purge(struct dlm_ls *ls);
34 int dlm_recover_waiters_post(struct dlm_ls *ls);
35 void dlm_recover_waiters_pre(struct dlm_ls *ls);
36 int dlm_recover_master_copy(struct dlm_ls *ls, struct dlm_rcom *rc);
37 int dlm_recover_process_copy(struct dlm_ls *ls, struct dlm_rcom *rc);
38
39 int dlm_user_request(struct dlm_ls *ls, struct dlm_user_args *ua, int mode,
40 uint32_t flags, void *name, unsigned int namelen,
41 unsigned long timeout_cs);
42 int dlm_user_convert(struct dlm_ls *ls, struct dlm_user_args *ua_tmp,
43 int mode, uint32_t flags, uint32_t lkid, char *lvb_in,
44 unsigned long timeout_cs);
45 int dlm_user_unlock(struct dlm_ls *ls, struct dlm_user_args *ua_tmp,
46 uint32_t flags, uint32_t lkid, char *lvb_in);
47 int dlm_user_cancel(struct dlm_ls *ls, struct dlm_user_args *ua_tmp,
48 uint32_t flags, uint32_t lkid);
49 int dlm_user_purge(struct dlm_ls *ls, struct dlm_user_proc *proc,
50 int nodeid, int pid);
51 int dlm_user_deadlock(struct dlm_ls *ls, uint32_t flags, uint32_t lkid);
52 void dlm_clear_proc_locks(struct dlm_ls *ls, struct dlm_user_proc *proc);
53
54 static inline int is_master(struct dlm_rsb *r)
55 {
56 return !r->res_nodeid;
57 }
58
59 static inline void lock_rsb(struct dlm_rsb *r)
60 {
61 mutex_lock(&r->res_mutex);
62 }
63
64 static inline void unlock_rsb(struct dlm_rsb *r)
65 {
66 mutex_unlock(&r->res_mutex);
67 }
68
69 #endif
70
71
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