Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
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
16void dlm_print_rsb(struct dlm_rsb *r);
17void dlm_dump_rsb(struct dlm_rsb *r);
18void dlm_print_lkb(struct dlm_lkb *lkb);
19void dlm_receive_message_saved(struct dlm_ls *ls, struct dlm_message *ms);
20void dlm_receive_buffer(struct dlm_header *hd, int nodeid);
21int dlm_modes_compat(int mode1, int mode2);
22int dlm_find_rsb(struct dlm_ls *ls, char *name, int namelen,
23 unsigned int flags, struct dlm_rsb **r_ret);
24void dlm_put_rsb(struct dlm_rsb *r);
25void dlm_hold_rsb(struct dlm_rsb *r);
26int dlm_put_lkb(struct dlm_lkb *lkb);
27void dlm_scan_rsbs(struct dlm_ls *ls);
28int dlm_lock_recovery_try(struct dlm_ls *ls);
29void dlm_unlock_recovery(struct dlm_ls *ls);
30void dlm_scan_timeout(struct dlm_ls *ls);
31void dlm_adjust_timeouts(struct dlm_ls *ls);
32
33int dlm_purge_locks(struct dlm_ls *ls);
34void dlm_purge_mstcpy_locks(struct dlm_rsb *r);
35void dlm_grant_after_purge(struct dlm_ls *ls);
36int dlm_recover_waiters_post(struct dlm_ls *ls);
37void dlm_recover_waiters_pre(struct dlm_ls *ls);
38int dlm_recover_master_copy(struct dlm_ls *ls, struct dlm_rcom *rc);
39int dlm_recover_process_copy(struct dlm_ls *ls, struct dlm_rcom *rc);
40
41int dlm_user_request(struct dlm_ls *ls, struct dlm_user_args *ua, int mode,
42 uint32_t flags, void *name, unsigned int namelen,
43 unsigned long timeout_cs);
44int dlm_user_convert(struct dlm_ls *ls, struct dlm_user_args *ua_tmp,
45 int mode, uint32_t flags, uint32_t lkid, char *lvb_in,
46 unsigned long timeout_cs);
47int dlm_user_unlock(struct dlm_ls *ls, struct dlm_user_args *ua_tmp,
48 uint32_t flags, uint32_t lkid, char *lvb_in);
49int dlm_user_cancel(struct dlm_ls *ls, struct dlm_user_args *ua_tmp,
50 uint32_t flags, uint32_t lkid);
51int dlm_user_purge(struct dlm_ls *ls, struct dlm_user_proc *proc,
52 int nodeid, int pid);
53int dlm_user_deadlock(struct dlm_ls *ls, uint32_t flags, uint32_t lkid);
54void dlm_clear_proc_locks(struct dlm_ls *ls, struct dlm_user_proc *proc);
55
56static inline int is_master(struct dlm_rsb *r)
57{
58 return !r->res_nodeid;
59}
60
61static inline void lock_rsb(struct dlm_rsb *r)
62{
63 mutex_lock(&r->res_mutex);
64}
65
66static inline void unlock_rsb(struct dlm_rsb *r)
67{
68 mutex_unlock(&r->res_mutex);
69}
70
71#endif
72