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_print_rsb(struct dlm_rsb *r); 17 void dlm_dump_rsb(struct dlm_rsb *r); 18 void dlm_print_lkb(struct dlm_lkb *lkb); 19 int dlm_receive_message(struct dlm_header *hd, int nodeid, int recovery); 20 int dlm_modes_compat(int mode1, int mode2); 21 int dlm_find_rsb(struct dlm_ls *ls, char *name, int namelen, 22 unsigned int flags, struct dlm_rsb **r_ret); 23 void dlm_put_rsb(struct dlm_rsb *r); 24 void dlm_hold_rsb(struct dlm_rsb *r); 25 int dlm_put_lkb(struct dlm_lkb *lkb); 26 void dlm_scan_rsbs(struct dlm_ls *ls); 27 int dlm_lock_recovery_try(struct dlm_ls *ls); 28 void dlm_unlock_recovery(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_purge_locks(struct dlm_ls *ls); 33 void dlm_purge_mstcpy_locks(struct dlm_rsb *r); 34 void dlm_grant_after_purge(struct dlm_ls *ls); 35 int dlm_recover_waiters_post(struct dlm_ls *ls); 36 void dlm_recover_waiters_pre(struct dlm_ls *ls); 37 int dlm_recover_master_copy(struct dlm_ls *ls, struct dlm_rcom *rc); 38 int dlm_recover_process_copy(struct dlm_ls *ls, struct dlm_rcom *rc); 39 40 int dlm_user_request(struct dlm_ls *ls, struct dlm_user_args *ua, int mode, 41 uint32_t flags, void *name, unsigned int namelen, 42 unsigned long timeout_cs); 43 int dlm_user_convert(struct dlm_ls *ls, struct dlm_user_args *ua_tmp, 44 int mode, uint32_t flags, uint32_t lkid, char *lvb_in, 45 unsigned long timeout_cs); 46 int dlm_user_unlock(struct dlm_ls *ls, struct dlm_user_args *ua_tmp, 47 uint32_t flags, uint32_t lkid, char *lvb_in); 48 int dlm_user_cancel(struct dlm_ls *ls, struct dlm_user_args *ua_tmp, 49 uint32_t flags, uint32_t lkid); 50 int dlm_user_purge(struct dlm_ls *ls, struct dlm_user_proc *proc, 51 int nodeid, int pid); 52 int dlm_user_deadlock(struct dlm_ls *ls, uint32_t flags, uint32_t lkid); 53 void dlm_clear_proc_locks(struct dlm_ls *ls, struct dlm_user_proc *proc); 54 55 static inline int is_master(struct dlm_rsb *r) 56 { 57 return !r->res_nodeid; 58 } 59 60 static inline void lock_rsb(struct dlm_rsb *r) 61 { 62 mutex_lock(&r->res_mutex); 63 } 64 65 static inline void unlock_rsb(struct dlm_rsb *r) 66 { 67 mutex_unlock(&r->res_mutex); 68 } 69 70 #endif 71 72