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