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