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| 2 | |
| 3 | *******************************************************************************
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| 4 | **
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| 5 | ** Copyright (C) 2005-2007 Red Hat, Inc. All rights reserved.
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| 6 | **
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| 7 | **
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| 8 | *******************************************************************************
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| 9 | *****************************************************************************
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| 10 |
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| 11 | #ifndef __LOCK_DOT_H__
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| 12 | #define __LOCK_DOT_H__
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| 13 |
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| 14 | void dlm_dump_rsb(struct dlm_rsb *r);
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| 15 | void dlm_dump_rsb_name(struct dlm_ls *ls, const char *name, int len);
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| 16 | void dlm_print_lkb(struct dlm_lkb *lkb);
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| 17 | void dlm_receive_message_saved(struct dlm_ls *ls, const struct dlm_message *ms,
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| 18 | uint32_t saved_seq);
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| 19 | void dlm_receive_buffer(const union dlm_packet *p, int nodeid);
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| 20 | int dlm_modes_compat(int mode1, int mode2);
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| 21 | void free_inactive_rsb(struct dlm_rsb *r);
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| 22 | void dlm_put_rsb(struct dlm_rsb *r);
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| 23 | void dlm_hold_rsb(struct dlm_rsb *r);
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| 24 | int dlm_put_lkb(struct dlm_lkb *lkb);
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| 25 | int dlm_lock_recovery_try(struct dlm_ls *ls);
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| 26 | void dlm_lock_recovery(struct dlm_ls *ls);
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| 27 | void dlm_unlock_recovery(struct dlm_ls *ls);
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| 28 | void dlm_rsb_scan(struct timer_list *timer);
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| 29 | void resume_scan_timer(struct dlm_ls *ls);
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| 30 |
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| 31 | int dlm_master_lookup(struct dlm_ls *ls, int from_nodeid, const char *name,
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| 32 | int len, unsigned int flags, int *r_nodeid, int *result);
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| 33 |
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| 34 | int dlm_search_rsb_tree(struct rhashtable *rhash, const void *name,
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| 35 | unsigned int len, struct dlm_rsb **r_ret);
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| 36 |
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| 37 | void dlm_recover_purge(struct dlm_ls *ls, const struct list_head *root_list);
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| 38 | void dlm_purge_mstcpy_locks(struct dlm_rsb *r);
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| 39 | void dlm_recover_grant(struct dlm_ls *ls);
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| 40 | int dlm_recover_waiters_post(struct dlm_ls *ls);
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| 41 | void dlm_recover_waiters_pre(struct dlm_ls *ls);
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| 42 | int dlm_recover_master_copy(struct dlm_ls *ls, const struct dlm_rcom *rc,
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| 43 | __le32 *rl_remid, __le32 *rl_result);
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| 44 | int dlm_recover_process_copy(struct dlm_ls *ls, const struct dlm_rcom *rc,
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| 45 | uint64_t seq);
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| 46 |
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| 47 | int dlm_user_request(struct dlm_ls *ls, struct dlm_user_args *ua, int mode,
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| 48 | uint32_t flags, void *name, unsigned int namelen);
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| 49 | int dlm_user_convert(struct dlm_ls *ls, struct dlm_user_args *ua_tmp,
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| 50 | int mode, uint32_t flags, uint32_t lkid, char *lvb_in);
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| 51 | int dlm_user_adopt_orphan(struct dlm_ls *ls, struct dlm_user_args *ua_tmp,
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| 52 | int mode, uint32_t flags, void *name, unsigned int namelen,
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| 53 | uint32_t *lkid);
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| 54 | int dlm_user_unlock(struct dlm_ls *ls, struct dlm_user_args *ua_tmp,
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| 55 | uint32_t flags, uint32_t lkid, char *lvb_in);
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| 56 | int dlm_user_cancel(struct dlm_ls *ls, struct dlm_user_args *ua_tmp,
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| 57 | uint32_t flags, uint32_t lkid);
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| 58 | int dlm_user_purge(struct dlm_ls *ls, struct dlm_user_proc *proc,
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| 59 | int nodeid, int pid);
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| 60 | int dlm_user_deadlock(struct dlm_ls *ls, uint32_t flags, uint32_t lkid);
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| 61 | void dlm_clear_proc_locks(struct dlm_ls *ls, struct dlm_user_proc *proc);
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| 62 | int dlm_debug_add_lkb(struct dlm_ls *ls, uint32_t lkb_id, char *name, int len,
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| 63 | int lkb_nodeid, unsigned int lkb_flags, int lkb_status);
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| 64 | int dlm_debug_add_lkb_to_waiters(struct dlm_ls *ls, uint32_t lkb_id,
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| 65 | int mstype, int to_nodeid);
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| 66 |
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| 67 | static inline int is_master(struct dlm_rsb *r)
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| 68 | {
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| 69 | WARN_ON_ONCE(r->res_nodeid == -1);
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| 70 |
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| 71 | return !r->res_nodeid;
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| 72 | }
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| 73 |
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| 74 | static inline void lock_rsb(struct dlm_rsb *r)
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| 75 | {
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| 76 | spin_lock_bh(&r->res_lock);
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| 77 | }
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| 78 |
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| 79 | static inline void unlock_rsb(struct dlm_rsb *r)
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| 80 | {
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| 81 | spin_unlock_bh(&r->res_lock);
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| 82 | }
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| 83 |
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| 84 | #endif
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| 85 |
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