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 void dlm_receive_message_saved(struct dlm_ls *ls, struct dlm_message *ms); 20 void dlm_receive_buffer(struct dlm_header *hd, int nodeid); 21 int dlm_modes_compat(int mode1, int mode2); 22 int dlm_find_rsb(struct dlm_ls *ls, char *name, int namelen, 23 unsigned int flags, struct dlm_rsb **r_ret); 24 void dlm_put_rsb(struct dlm_rsb *r); 25 void dlm_hold_rsb(struct dlm_rsb *r); 26 int dlm_put_lkb(struct dlm_lkb *lkb); 27 void dlm_scan_rsbs(struct dlm_ls *ls); 28 int dlm_lock_recovery_try(struct dlm_ls *ls); 29 void dlm_unlock_recovery(struct dlm_ls *ls); 30 void dlm_scan_timeout(struct dlm_ls *ls); 31 void dlm_adjust_timeouts(struct dlm_ls *ls); 32 33 int dlm_purge_locks(struct dlm_ls *ls); 34 void dlm_purge_mstcpy_locks(struct dlm_rsb *r); 35 void dlm_grant_after_purge(struct dlm_ls *ls); 36 int dlm_recover_waiters_post(struct dlm_ls *ls); 37 void dlm_recover_waiters_pre(struct dlm_ls *ls); 38 int dlm_recover_master_copy(struct dlm_ls *ls, struct dlm_rcom *rc); 39 int dlm_recover_process_copy(struct dlm_ls *ls, struct dlm_rcom *rc); 40 41 int dlm_user_request(struct dlm_ls *ls, struct dlm_user_args *ua, int mode, 42 uint32_t flags, void *name, unsigned int namelen, 43 unsigned long timeout_cs); 44 int dlm_user_convert(struct dlm_ls *ls, struct dlm_user_args *ua_tmp, 45 int mode, uint32_t flags, uint32_t lkid, char *lvb_in, 46 unsigned long timeout_cs); 47 int dlm_user_unlock(struct dlm_ls *ls, struct dlm_user_args *ua_tmp, 48 uint32_t flags, uint32_t lkid, char *lvb_in); 49 int dlm_user_cancel(struct dlm_ls *ls, struct dlm_user_args *ua_tmp, 50 uint32_t flags, uint32_t lkid); 51 int dlm_user_purge(struct dlm_ls *ls, struct dlm_user_proc *proc, 52 int nodeid, int pid); 53 int dlm_user_deadlock(struct dlm_ls *ls, uint32_t flags, uint32_t lkid); 54 void dlm_clear_proc_locks(struct dlm_ls *ls, struct dlm_user_proc *proc); 55 56 static inline int is_master(struct dlm_rsb *r) 57 { 58 return !r->res_nodeid; 59 } 60 61 static inline void lock_rsb(struct dlm_rsb *r) 62 { 63 mutex_lock(&r->res_mutex); 64 } 65 66 static inline void unlock_rsb(struct dlm_rsb *r) 67 { 68 mutex_unlock(&r->res_mutex); 69 } 70 71 #endif 72 73