]> bbs.cooldavid.org Git - net-next-2.6.git/blame - fs/dlm/lock.h
dlm: use proper C for dlm/requestqueue stuff (and fix alignment bug)
[net-next-2.6.git] / fs / dlm / lock.h
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1/******************************************************************************
2*******************************************************************************
3**
3ae1acf9 4** Copyright (C) 2005-2007 Red Hat, Inc. All rights reserved.
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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);
a345da3e 17void dlm_dump_rsb(struct dlm_rsb *r);
597d0cae 18void dlm_print_lkb(struct dlm_lkb *lkb);
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19void dlm_receive_message_saved(struct dlm_ls *ls, struct dlm_message *ms);
20void dlm_receive_buffer(struct dlm_header *hd, int nodeid);
e7fd4179 21int dlm_modes_compat(int mode1, int mode2);
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22void dlm_put_rsb(struct dlm_rsb *r);
23void dlm_hold_rsb(struct dlm_rsb *r);
24int dlm_put_lkb(struct dlm_lkb *lkb);
25void dlm_scan_rsbs(struct dlm_ls *ls);
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26int dlm_lock_recovery_try(struct dlm_ls *ls);
27void dlm_unlock_recovery(struct dlm_ls *ls);
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28void dlm_scan_timeout(struct dlm_ls *ls);
29void dlm_adjust_timeouts(struct dlm_ls *ls);
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30
31int dlm_purge_locks(struct dlm_ls *ls);
32void dlm_purge_mstcpy_locks(struct dlm_rsb *r);
97a35d1e 33void dlm_grant_after_purge(struct dlm_ls *ls);
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34int 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
597d0cae 39int dlm_user_request(struct dlm_ls *ls, struct dlm_user_args *ua, int mode,
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40 uint32_t flags, void *name, unsigned int namelen,
41 unsigned long timeout_cs);
597d0cae 42int dlm_user_convert(struct dlm_ls *ls, struct dlm_user_args *ua_tmp,
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43 int mode, uint32_t flags, uint32_t lkid, char *lvb_in,
44 unsigned long timeout_cs);
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45int 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);
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49int dlm_user_purge(struct dlm_ls *ls, struct dlm_user_proc *proc,
50 int nodeid, int pid);
8b4021fa 51int dlm_user_deadlock(struct dlm_ls *ls, uint32_t flags, uint32_t lkid);
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52void dlm_clear_proc_locks(struct dlm_ls *ls, struct dlm_user_proc *proc);
53
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54static 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{
90135925 61 mutex_lock(&r->res_mutex);
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62}
63
64static inline void unlock_rsb(struct dlm_rsb *r)
65{
90135925 66 mutex_unlock(&r->res_mutex);
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67}
68
69#endif
70