1 /****************************************************************************** 2 ******************************************************************************* 3 ** 4 ** Copyright (C) 2005 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 28 int dlm_purge_locks(struct dlm_ls *ls); 29 void dlm_purge_mstcpy_locks(struct dlm_rsb *r); 30 void dlm_grant_after_purge(struct dlm_ls *ls); 31 int dlm_recover_waiters_post(struct dlm_ls *ls); 32 void dlm_recover_waiters_pre(struct dlm_ls *ls); 33 int dlm_recover_master_copy(struct dlm_ls *ls, struct dlm_rcom *rc); 34 int dlm_recover_process_copy(struct dlm_ls *ls, struct dlm_rcom *rc); 35 36 int dlm_user_request(struct dlm_ls *ls, struct dlm_user_args *ua, int mode, 37 uint32_t flags, void *name, unsigned int namelen, uint32_t parent_lkid); 38 int dlm_user_convert(struct dlm_ls *ls, struct dlm_user_args *ua_tmp, 39 int mode, uint32_t flags, uint32_t lkid, char *lvb_in); 40 int dlm_user_unlock(struct dlm_ls *ls, struct dlm_user_args *ua_tmp, 41 uint32_t flags, uint32_t lkid, char *lvb_in); 42 int dlm_user_cancel(struct dlm_ls *ls, struct dlm_user_args *ua_tmp, 43 uint32_t flags, uint32_t lkid); 44 int dlm_user_purge(struct dlm_ls *ls, struct dlm_user_proc *proc, 45 int nodeid, int pid); 46 void dlm_clear_proc_locks(struct dlm_ls *ls, struct dlm_user_proc *proc); 47 48 static inline int is_master(struct dlm_rsb *r) 49 { 50 return !r->res_nodeid; 51 } 52 53 static inline void lock_rsb(struct dlm_rsb *r) 54 { 55 mutex_lock(&r->res_mutex); 56 } 57 58 static inline void unlock_rsb(struct dlm_rsb *r) 59 { 60 mutex_unlock(&r->res_mutex); 61 } 62 63 #endif 64 65