blob: 265017a7c3e7a6246f39400566238bddf996507c [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
David Teiglanda345da32006-08-18 11:54:25 -050016void dlm_dump_rsb(struct dlm_rsb *r);
David Teigland597d0ca2006-07-12 16:44:04 -050017void dlm_print_lkb(struct dlm_lkb *lkb);
David Teiglandc36258b2007-09-27 15:53:38 -050018void dlm_receive_message_saved(struct dlm_ls *ls, struct dlm_message *ms);
Al Viroeef7d732008-01-25 00:58:46 -050019void dlm_receive_buffer(union dlm_packet *p, int nodeid);
David Teiglande7fd4172006-01-18 09:30:29 +000020int dlm_modes_compat(int mode1, int mode2);
David Teiglande7fd4172006-01-18 09:30:29 +000021void 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);
David Teigland85e86ed2007-05-18 08:58:15 -050025int dlm_lock_recovery_try(struct dlm_ls *ls);
26void dlm_unlock_recovery(struct dlm_ls *ls);
David Teiglandc6ff6692011-03-28 14:17:26 -050027void dlm_scan_waiters(struct dlm_ls *ls);
David Teigland3ae1acf2007-05-18 08:59:31 -050028void dlm_scan_timeout(struct dlm_ls *ls);
29void dlm_adjust_timeouts(struct dlm_ls *ls);
David Teiglande7fd4172006-01-18 09:30:29 +000030
31int dlm_purge_locks(struct dlm_ls *ls);
32void dlm_purge_mstcpy_locks(struct dlm_rsb *r);
David Teigland97a35d12006-05-02 13:34:03 -040033void dlm_grant_after_purge(struct dlm_ls *ls);
David Teiglande7fd4172006-01-18 09:30:29 +000034int dlm_recover_waiters_post(struct dlm_ls *ls);
35void dlm_recover_waiters_pre(struct dlm_ls *ls);
36int dlm_recover_master_copy(struct dlm_ls *ls, struct dlm_rcom *rc);
37int dlm_recover_process_copy(struct dlm_ls *ls, struct dlm_rcom *rc);
38
David Teigland597d0ca2006-07-12 16:44:04 -050039int dlm_user_request(struct dlm_ls *ls, struct dlm_user_args *ua, int mode,
David Teiglandd7db9232007-05-18 09:00:32 -050040 uint32_t flags, void *name, unsigned int namelen,
41 unsigned long timeout_cs);
David Teigland597d0ca2006-07-12 16:44:04 -050042int dlm_user_convert(struct dlm_ls *ls, struct dlm_user_args *ua_tmp,
David Teiglandd7db9232007-05-18 09:00:32 -050043 int mode, uint32_t flags, uint32_t lkid, char *lvb_in,
44 unsigned long timeout_cs);
David Teigland597d0ca2006-07-12 16:44:04 -050045int dlm_user_unlock(struct dlm_ls *ls, struct dlm_user_args *ua_tmp,
46 uint32_t flags, uint32_t lkid, char *lvb_in);
47int dlm_user_cancel(struct dlm_ls *ls, struct dlm_user_args *ua_tmp,
48 uint32_t flags, uint32_t lkid);
David Teigland72c2be72007-03-30 15:06:16 -050049int dlm_user_purge(struct dlm_ls *ls, struct dlm_user_proc *proc,
50 int nodeid, int pid);
David Teigland8b4021f2007-05-29 08:46:00 -050051int dlm_user_deadlock(struct dlm_ls *ls, uint32_t flags, uint32_t lkid);
David Teigland597d0ca2006-07-12 16:44:04 -050052void dlm_clear_proc_locks(struct dlm_ls *ls, struct dlm_user_proc *proc);
53
David Teiglande7fd4172006-01-18 09:30:29 +000054static inline int is_master(struct dlm_rsb *r)
55{
56 return !r->res_nodeid;
57}
58
59static inline void lock_rsb(struct dlm_rsb *r)
60{
David Teigland90135922006-01-20 08:47:07 +000061 mutex_lock(&r->res_mutex);
David Teiglande7fd4172006-01-18 09:30:29 +000062}
63
64static inline void unlock_rsb(struct dlm_rsb *r)
65{
David Teigland90135922006-01-20 08:47:07 +000066 mutex_unlock(&r->res_mutex);
David Teiglande7fd4172006-01-18 09:30:29 +000067}
68
69#endif
70