1 /******************************************************************************
2 *******************************************************************************
4 ** Copyright (C) 2005-2007 Red Hat, Inc. All rights reserved.
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.
10 *******************************************************************************
11 ******************************************************************************/
13 #ifndef __LOCK_DOT_H__
14 #define __LOCK_DOT_H__
16 void dlm_dump_rsb(struct dlm_rsb *r);
17 void dlm_print_lkb(struct dlm_lkb *lkb);
18 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);
30 int dlm_purge_locks(struct dlm_ls *ls);
31 void dlm_purge_mstcpy_locks(struct dlm_rsb *r);
32 void dlm_grant_after_purge(struct dlm_ls *ls);
33 int dlm_recover_waiters_post(struct dlm_ls *ls);
34 void dlm_recover_waiters_pre(struct dlm_ls *ls);
35 int dlm_recover_master_copy(struct dlm_ls *ls, struct dlm_rcom *rc);
36 int dlm_recover_process_copy(struct dlm_ls *ls, struct dlm_rcom *rc);
38 int dlm_user_request(struct dlm_ls *ls, struct dlm_user_args *ua, int mode,
39 uint32_t flags, void *name, unsigned int namelen,
40 unsigned long timeout_cs);
41 int dlm_user_convert(struct dlm_ls *ls, struct dlm_user_args *ua_tmp,
42 int mode, uint32_t flags, uint32_t lkid, char *lvb_in,
43 unsigned long timeout_cs);
44 int dlm_user_unlock(struct dlm_ls *ls, struct dlm_user_args *ua_tmp,
45 uint32_t flags, uint32_t lkid, char *lvb_in);
46 int dlm_user_cancel(struct dlm_ls *ls, struct dlm_user_args *ua_tmp,
47 uint32_t flags, uint32_t lkid);
48 int dlm_user_purge(struct dlm_ls *ls, struct dlm_user_proc *proc,
50 int dlm_user_deadlock(struct dlm_ls *ls, uint32_t flags, uint32_t lkid);
51 void dlm_clear_proc_locks(struct dlm_ls *ls, struct dlm_user_proc *proc);
53 static inline int is_master(struct dlm_rsb *r)
55 return !r->res_nodeid;
58 static inline void lock_rsb(struct dlm_rsb *r)
60 mutex_lock(&r->res_mutex);
63 static inline void unlock_rsb(struct dlm_rsb *r)
65 mutex_unlock(&r->res_mutex);