tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
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linux
1/* SPDX-License-Identifier: GPL-2.0-only */
2/******************************************************************************
3*******************************************************************************
4**
5** Copyright (C) 2005-2007 Red Hat, Inc. All rights reserved.
6**
7**
8*******************************************************************************
9******************************************************************************/
10
11#ifndef __LOCK_DOT_H__
12#define __LOCK_DOT_H__
13
14void dlm_dump_rsb(struct dlm_rsb *r);
15void dlm_dump_rsb_name(struct dlm_ls *ls, char *name, int len);
16void dlm_print_lkb(struct dlm_lkb *lkb);
17void dlm_receive_message_saved(struct dlm_ls *ls, struct dlm_message *ms,
18 uint32_t saved_seq);
19void dlm_receive_buffer(union dlm_packet *p, int nodeid);
20int dlm_modes_compat(int mode1, int mode2);
21void 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);
25int dlm_lock_recovery_try(struct dlm_ls *ls);
26void dlm_unlock_recovery(struct dlm_ls *ls);
27
28int dlm_master_lookup(struct dlm_ls *ls, int nodeid, char *name, int len,
29 unsigned int flags, int *r_nodeid, int *result);
30
31int dlm_search_rsb_tree(struct rb_root *tree, const void *name, int len,
32 struct dlm_rsb **r_ret);
33
34void dlm_recover_purge(struct dlm_ls *ls);
35void dlm_purge_mstcpy_locks(struct dlm_rsb *r);
36void dlm_recover_grant(struct dlm_ls *ls);
37int dlm_recover_waiters_post(struct dlm_ls *ls);
38void dlm_recover_waiters_pre(struct dlm_ls *ls);
39int dlm_recover_master_copy(struct dlm_ls *ls, struct dlm_rcom *rc);
40int dlm_recover_process_copy(struct dlm_ls *ls, struct dlm_rcom *rc);
41
42int dlm_user_request(struct dlm_ls *ls, struct dlm_user_args *ua, int mode,
43 uint32_t flags, void *name, unsigned int namelen);
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);
46int dlm_user_adopt_orphan(struct dlm_ls *ls, struct dlm_user_args *ua_tmp,
47 int mode, uint32_t flags, void *name, unsigned int namelen,
48 uint32_t *lkid);
49int dlm_user_unlock(struct dlm_ls *ls, struct dlm_user_args *ua_tmp,
50 uint32_t flags, uint32_t lkid, char *lvb_in);
51int dlm_user_cancel(struct dlm_ls *ls, struct dlm_user_args *ua_tmp,
52 uint32_t flags, uint32_t lkid);
53int dlm_user_purge(struct dlm_ls *ls, struct dlm_user_proc *proc,
54 int nodeid, int pid);
55int dlm_user_deadlock(struct dlm_ls *ls, uint32_t flags, uint32_t lkid);
56void dlm_clear_proc_locks(struct dlm_ls *ls, struct dlm_user_proc *proc);
57int dlm_debug_add_lkb(struct dlm_ls *ls, uint32_t lkb_id, char *name, int len,
58 int lkb_nodeid, unsigned int lkb_flags, int lkb_status);
59int dlm_debug_add_lkb_to_waiters(struct dlm_ls *ls, uint32_t lkb_id,
60 int mstype, int to_nodeid);
61
62static inline int is_master(struct dlm_rsb *r)
63{
64 return !r->res_nodeid;
65}
66
67static inline void lock_rsb(struct dlm_rsb *r)
68{
69 mutex_lock(&r->res_mutex);
70}
71
72static inline void unlock_rsb(struct dlm_rsb *r)
73{
74 mutex_unlock(&r->res_mutex);
75}
76
77#endif
78