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, char *name, int len); 16 void dlm_print_lkb(struct dlm_lkb *lkb); 17 void dlm_receive_message_saved(struct dlm_ls *ls, struct dlm_message *ms, 18 uint32_t saved_seq); 19 void dlm_receive_buffer(union dlm_packet *p, int nodeid); 20 int dlm_modes_compat(int mode1, int mode2); 21 void dlm_put_rsb(struct dlm_rsb *r); 22 void dlm_hold_rsb(struct dlm_rsb *r); 23 int dlm_put_lkb(struct dlm_lkb *lkb); 24 void dlm_scan_rsbs(struct dlm_ls *ls); 25 int dlm_lock_recovery_try(struct dlm_ls *ls); 26 void dlm_unlock_recovery(struct dlm_ls *ls); 27 28 #ifdef CONFIG_DLM_DEPRECATED_API 29 void dlm_scan_timeout(struct dlm_ls *ls); 30 void dlm_adjust_timeouts(struct dlm_ls *ls); 31 #else 32 static inline void dlm_scan_timeout(struct dlm_ls *ls) { } 33 static inline void dlm_adjust_timeouts(struct dlm_ls *ls) { } 34 #endif 35 36 int dlm_master_lookup(struct dlm_ls *ls, int nodeid, char *name, int len, 37 unsigned int flags, int *r_nodeid, int *result); 38 39 int dlm_search_rsb_tree(struct rb_root *tree, const void *name, int len, 40 struct dlm_rsb **r_ret); 41 42 void dlm_recover_purge(struct dlm_ls *ls); 43 void dlm_purge_mstcpy_locks(struct dlm_rsb *r); 44 void dlm_recover_grant(struct dlm_ls *ls); 45 int dlm_recover_waiters_post(struct dlm_ls *ls); 46 void dlm_recover_waiters_pre(struct dlm_ls *ls); 47 int dlm_recover_master_copy(struct dlm_ls *ls, struct dlm_rcom *rc); 48 int dlm_recover_process_copy(struct dlm_ls *ls, struct dlm_rcom *rc); 49 50 #ifdef CONFIG_DLM_DEPRECATED_API 51 int dlm_user_request(struct dlm_ls *ls, struct dlm_user_args *ua, int mode, 52 uint32_t flags, void *name, unsigned int namelen, 53 unsigned long timeout_cs); 54 int dlm_user_convert(struct dlm_ls *ls, struct dlm_user_args *ua_tmp, 55 int mode, uint32_t flags, uint32_t lkid, char *lvb_in, 56 unsigned long timeout_cs); 57 #else 58 int dlm_user_request(struct dlm_ls *ls, struct dlm_user_args *ua, int mode, 59 uint32_t flags, void *name, unsigned int namelen); 60 int dlm_user_convert(struct dlm_ls *ls, struct dlm_user_args *ua_tmp, 61 int mode, uint32_t flags, uint32_t lkid, char *lvb_in); 62 #endif 63 int dlm_user_adopt_orphan(struct dlm_ls *ls, struct dlm_user_args *ua_tmp, 64 int mode, uint32_t flags, void *name, unsigned int namelen, 65 uint32_t *lkid); 66 int dlm_user_unlock(struct dlm_ls *ls, struct dlm_user_args *ua_tmp, 67 uint32_t flags, uint32_t lkid, char *lvb_in); 68 int dlm_user_cancel(struct dlm_ls *ls, struct dlm_user_args *ua_tmp, 69 uint32_t flags, uint32_t lkid); 70 int dlm_user_purge(struct dlm_ls *ls, struct dlm_user_proc *proc, 71 int nodeid, int pid); 72 int dlm_user_deadlock(struct dlm_ls *ls, uint32_t flags, uint32_t lkid); 73 void dlm_clear_proc_locks(struct dlm_ls *ls, struct dlm_user_proc *proc); 74 int dlm_debug_add_lkb(struct dlm_ls *ls, uint32_t lkb_id, char *name, int len, 75 int lkb_nodeid, unsigned int lkb_flags, int lkb_status); 76 int dlm_debug_add_lkb_to_waiters(struct dlm_ls *ls, uint32_t lkb_id, 77 int mstype, int to_nodeid); 78 79 static inline int is_master(struct dlm_rsb *r) 80 { 81 return !r->res_nodeid; 82 } 83 84 static inline void lock_rsb(struct dlm_rsb *r) 85 { 86 mutex_lock(&r->res_mutex); 87 } 88 89 static inline void unlock_rsb(struct dlm_rsb *r) 90 { 91 mutex_unlock(&r->res_mutex); 92 } 93 94 #endif 95 96