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