tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/******************************************************************************
2*******************************************************************************
3**
4** Copyright (C) 2005 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);
19int 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);
27
28int dlm_purge_locks(struct dlm_ls *ls);
29void dlm_purge_mstcpy_locks(struct dlm_rsb *r);
30void dlm_grant_after_purge(struct dlm_ls *ls);
31int dlm_recover_waiters_post(struct dlm_ls *ls);
32void dlm_recover_waiters_pre(struct dlm_ls *ls);
33int dlm_recover_master_copy(struct dlm_ls *ls, struct dlm_rcom *rc);
34int dlm_recover_process_copy(struct dlm_ls *ls, struct dlm_rcom *rc);
35
36int dlm_user_request(struct dlm_ls *ls, struct dlm_user_args *ua, int mode,
37 uint32_t flags, void *name, unsigned int namelen, uint32_t parent_lkid);
38int dlm_user_convert(struct dlm_ls *ls, struct dlm_user_args *ua_tmp,
39 int mode, uint32_t flags, uint32_t lkid, char *lvb_in);
40int dlm_user_unlock(struct dlm_ls *ls, struct dlm_user_args *ua_tmp,
41 uint32_t flags, uint32_t lkid, char *lvb_in);
42int dlm_user_cancel(struct dlm_ls *ls, struct dlm_user_args *ua_tmp,
43 uint32_t flags, uint32_t lkid);
44void dlm_clear_proc_locks(struct dlm_ls *ls, struct dlm_user_proc *proc);
45
46static inline int is_master(struct dlm_rsb *r)
47{
48 return !r->res_nodeid;
49}
50
51static inline void lock_rsb(struct dlm_rsb *r)
52{
53 mutex_lock(&r->res_mutex);
54}
55
56static inline void unlock_rsb(struct dlm_rsb *r)
57{
58 mutex_unlock(&r->res_mutex);
59}
60
61#endif
62