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 void dlm_scan_waiters(struct dlm_ls *ls); 28 void dlm_scan_timeout(struct dlm_ls *ls); 29 void dlm_adjust_timeouts(struct dlm_ls *ls); 30 int dlm_master_lookup(struct dlm_ls *ls, int nodeid, char *name, int len, 31 unsigned int flags, int *r_nodeid, int *result); 32 33 int dlm_search_rsb_tree(struct rb_root *tree, char *name, int len, 34 struct dlm_rsb **r_ret); 35 36 void dlm_recover_purge(struct dlm_ls *ls); 37 void dlm_purge_mstcpy_locks(struct dlm_rsb *r); 38 void dlm_recover_grant(struct dlm_ls *ls); 39 int dlm_recover_waiters_post(struct dlm_ls *ls); 40 void dlm_recover_waiters_pre(struct dlm_ls *ls); 41 int dlm_recover_master_copy(struct dlm_ls *ls, struct dlm_rcom *rc); 42 int dlm_recover_process_copy(struct dlm_ls *ls, struct dlm_rcom *rc); 43 44 int dlm_user_request(struct dlm_ls *ls, struct dlm_user_args *ua, int mode, 45 uint32_t flags, void *name, unsigned int namelen, 46 unsigned long timeout_cs); 47 int dlm_user_convert(struct dlm_ls *ls, struct dlm_user_args *ua_tmp, 48 int mode, uint32_t flags, uint32_t lkid, char *lvb_in, 49 unsigned long timeout_cs); 50 int dlm_user_adopt_orphan(struct dlm_ls *ls, struct dlm_user_args *ua_tmp, 51 int mode, uint32_t flags, void *name, unsigned int namelen, 52 unsigned long timeout_cs, uint32_t *lkid); 53 int dlm_user_unlock(struct dlm_ls *ls, struct dlm_user_args *ua_tmp, 54 uint32_t flags, uint32_t lkid, char *lvb_in); 55 int dlm_user_cancel(struct dlm_ls *ls, struct dlm_user_args *ua_tmp, 56 uint32_t flags, uint32_t lkid); 57 int dlm_user_purge(struct dlm_ls *ls, struct dlm_user_proc *proc, 58 int nodeid, int pid); 59 int dlm_user_deadlock(struct dlm_ls *ls, uint32_t flags, uint32_t lkid); 60 void dlm_clear_proc_locks(struct dlm_ls *ls, struct dlm_user_proc *proc); 61 62 static inline int is_master(struct dlm_rsb *r) 63 { 64 return !r->res_nodeid; 65 } 66 67 static inline void lock_rsb(struct dlm_rsb *r) 68 { 69 mutex_lock(&r->res_mutex); 70 } 71 72 static inline void unlock_rsb(struct dlm_rsb *r) 73 { 74 mutex_unlock(&r->res_mutex); 75 } 76 77 #endif 78 79