blob: 1720313c22dfc455fd6c25f47d94fc02db075a64 [file] [log] [blame]
David Teiglande7fd4172006-01-18 09:30:29 +00001/******************************************************************************
2*******************************************************************************
3**
David Teigland3ae1acf2007-05-18 08:59:31 -05004** Copyright (C) 2005-2007 Red Hat, Inc. All rights reserved.
David Teiglande7fd4172006-01-18 09:30:29 +00005**
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_print_rsb(struct dlm_rsb *r);
David Teiglanda345da32006-08-18 11:54:25 -050017void dlm_dump_rsb(struct dlm_rsb *r);
David Teigland597d0ca2006-07-12 16:44:04 -050018void dlm_print_lkb(struct dlm_lkb *lkb);
David Teiglande7fd4172006-01-18 09:30:29 +000019int dlm_receive_message(struct dlm_header *hd, int nodeid, int recovery);
20int dlm_modes_compat(int mode1, int mode2);
21int dlm_find_rsb(struct dlm_ls *ls, char *name, int namelen,
22 unsigned int flags, struct dlm_rsb **r_ret);
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);
David Teigland85e86ed2007-05-18 08:58:15 -050027int dlm_lock_recovery_try(struct dlm_ls *ls);
28void dlm_unlock_recovery(struct dlm_ls *ls);
David Teigland3ae1acf2007-05-18 08:59:31 -050029void dlm_scan_timeout(struct dlm_ls *ls);
30void dlm_adjust_timeouts(struct dlm_ls *ls);
David Teiglande7fd4172006-01-18 09:30:29 +000031
32int dlm_purge_locks(struct dlm_ls *ls);
33void dlm_purge_mstcpy_locks(struct dlm_rsb *r);
David Teigland97a35d12006-05-02 13:34:03 -040034void dlm_grant_after_purge(struct dlm_ls *ls);
David Teiglande7fd4172006-01-18 09:30:29 +000035int dlm_recover_waiters_post(struct dlm_ls *ls);
36void dlm_recover_waiters_pre(struct dlm_ls *ls);
37int dlm_recover_master_copy(struct dlm_ls *ls, struct dlm_rcom *rc);
38int dlm_recover_process_copy(struct dlm_ls *ls, struct dlm_rcom *rc);
39
David Teigland597d0ca2006-07-12 16:44:04 -050040int dlm_user_request(struct dlm_ls *ls, struct dlm_user_args *ua, int mode,
David Teiglandd7db9232007-05-18 09:00:32 -050041 uint32_t flags, void *name, unsigned int namelen,
42 unsigned long timeout_cs);
David Teigland597d0ca2006-07-12 16:44:04 -050043int dlm_user_convert(struct dlm_ls *ls, struct dlm_user_args *ua_tmp,
David Teiglandd7db9232007-05-18 09:00:32 -050044 int mode, uint32_t flags, uint32_t lkid, char *lvb_in,
45 unsigned long timeout_cs);
David Teigland597d0ca2006-07-12 16:44:04 -050046int dlm_user_unlock(struct dlm_ls *ls, struct dlm_user_args *ua_tmp,
47 uint32_t flags, uint32_t lkid, char *lvb_in);
48int dlm_user_cancel(struct dlm_ls *ls, struct dlm_user_args *ua_tmp,
49 uint32_t flags, uint32_t lkid);
David Teigland72c2be72007-03-30 15:06:16 -050050int dlm_user_purge(struct dlm_ls *ls, struct dlm_user_proc *proc,
51 int nodeid, int pid);
David Teigland8b4021f2007-05-29 08:46:00 -050052int dlm_user_deadlock(struct dlm_ls *ls, uint32_t flags, uint32_t lkid);
David Teigland597d0ca2006-07-12 16:44:04 -050053void dlm_clear_proc_locks(struct dlm_ls *ls, struct dlm_user_proc *proc);
54
David Teiglande7fd4172006-01-18 09:30:29 +000055static inline int is_master(struct dlm_rsb *r)
56{
57 return !r->res_nodeid;
58}
59
60static inline void lock_rsb(struct dlm_rsb *r)
61{
David Teigland90135922006-01-20 08:47:07 +000062 mutex_lock(&r->res_mutex);
David Teiglande7fd4172006-01-18 09:30:29 +000063}
64
65static inline void unlock_rsb(struct dlm_rsb *r)
66{
David Teigland90135922006-01-20 08:47:07 +000067 mutex_unlock(&r->res_mutex);
David Teiglande7fd4172006-01-18 09:30:29 +000068}
69
70#endif
71