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