1 /****************************************************************************** 2 ******************************************************************************* 3 ** 4 ** Copyright (C) 2005-2007 Red Hat, Inc. All rights reserved. 5 ** 6 ** This copyrighted material is made available to anyone wishing to use, 7 ** modify, copy, or redistribute it subject to the terms and conditions 8 ** of the GNU General Public License v.2. 9 ** 10 ******************************************************************************* 11 ******************************************************************************/ 12 13 #ifndef __LOCK_DOT_H__ 14 #define __LOCK_DOT_H__ 15 16 void dlm_dump_rsb(struct dlm_rsb *r); 17 void dlm_print_lkb(struct dlm_lkb *lkb); 18 void dlm_receive_message_saved(struct dlm_ls *ls, struct dlm_message *ms, 19 uint32_t saved_seq); 20 void dlm_receive_buffer(union dlm_packet *p, int nodeid); 21 int dlm_modes_compat(int mode1, int mode2); 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 void dlm_scan_rsbs(struct dlm_ls *ls); 26 int dlm_lock_recovery_try(struct dlm_ls *ls); 27 void dlm_unlock_recovery(struct dlm_ls *ls); 28 void dlm_scan_waiters(struct dlm_ls *ls); 29 void dlm_scan_timeout(struct dlm_ls *ls); 30 void dlm_adjust_timeouts(struct dlm_ls *ls); 31 32 int dlm_search_rsb_tree(struct rb_root *tree, char *name, int len, 33 unsigned int flags, struct dlm_rsb **r_ret); 34 35 void dlm_recover_purge(struct dlm_ls *ls); 36 void dlm_purge_mstcpy_locks(struct dlm_rsb *r); 37 void dlm_recover_grant(struct dlm_ls *ls); 38 int dlm_recover_waiters_post(struct dlm_ls *ls); 39 void dlm_recover_waiters_pre(struct dlm_ls *ls); 40 int dlm_recover_master_copy(struct dlm_ls *ls, struct dlm_rcom *rc); 41 int dlm_recover_process_copy(struct dlm_ls *ls, struct dlm_rcom *rc); 42 43 int dlm_user_request(struct dlm_ls *ls, struct dlm_user_args *ua, int mode, 44 uint32_t flags, void *name, unsigned int namelen, 45 unsigned long timeout_cs); 46 int 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, 48 unsigned long timeout_cs); 49 int dlm_user_unlock(struct dlm_ls *ls, struct dlm_user_args *ua_tmp, 50 uint32_t flags, uint32_t lkid, char *lvb_in); 51 int dlm_user_cancel(struct dlm_ls *ls, struct dlm_user_args *ua_tmp, 52 uint32_t flags, uint32_t lkid); 53 int dlm_user_purge(struct dlm_ls *ls, struct dlm_user_proc *proc, 54 int nodeid, int pid); 55 int dlm_user_deadlock(struct dlm_ls *ls, uint32_t flags, uint32_t lkid); 56 void dlm_clear_proc_locks(struct dlm_ls *ls, struct dlm_user_proc *proc); 57 58 static inline int is_master(struct dlm_rsb *r) 59 { 60 return !r->res_nodeid; 61 } 62 63 static inline void lock_rsb(struct dlm_rsb *r) 64 { 65 mutex_lock(&r->res_mutex); 66 } 67 68 static inline void unlock_rsb(struct dlm_rsb *r) 69 { 70 mutex_unlock(&r->res_mutex); 71 } 72 73 #endif 74 75