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