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_dump_rsb_name(struct dlm_ls *ls, char *name, int len); 18 void dlm_print_lkb(struct dlm_lkb *lkb); 19 void dlm_receive_message_saved(struct dlm_ls *ls, struct dlm_message *ms, 20 uint32_t saved_seq); 21 void dlm_receive_buffer(union dlm_packet *p, int nodeid); 22 int dlm_modes_compat(int mode1, int mode2); 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_waiters(struct dlm_ls *ls); 30 void dlm_scan_timeout(struct dlm_ls *ls); 31 void dlm_adjust_timeouts(struct dlm_ls *ls); 32 int dlm_master_lookup(struct dlm_ls *ls, int nodeid, char *name, int len, 33 unsigned int flags, int *r_nodeid, int *result); 34 35 int dlm_search_rsb_tree(struct rb_root *tree, char *name, int len, 36 struct dlm_rsb **r_ret); 37 38 void dlm_recover_purge(struct dlm_ls *ls); 39 void dlm_purge_mstcpy_locks(struct dlm_rsb *r); 40 void dlm_recover_grant(struct dlm_ls *ls); 41 int dlm_recover_waiters_post(struct dlm_ls *ls); 42 void dlm_recover_waiters_pre(struct dlm_ls *ls); 43 int dlm_recover_master_copy(struct dlm_ls *ls, struct dlm_rcom *rc); 44 int dlm_recover_process_copy(struct dlm_ls *ls, struct dlm_rcom *rc); 45 46 int dlm_user_request(struct dlm_ls *ls, struct dlm_user_args *ua, int mode, 47 uint32_t flags, void *name, unsigned int namelen, 48 unsigned long timeout_cs); 49 int dlm_user_convert(struct dlm_ls *ls, struct dlm_user_args *ua_tmp, 50 int mode, uint32_t flags, uint32_t lkid, char *lvb_in, 51 unsigned long timeout_cs); 52 int dlm_user_adopt_orphan(struct dlm_ls *ls, struct dlm_user_args *ua_tmp, 53 int mode, uint32_t flags, void *name, unsigned int namelen, 54 unsigned long timeout_cs, uint32_t *lkid); 55 int dlm_user_unlock(struct dlm_ls *ls, struct dlm_user_args *ua_tmp, 56 uint32_t flags, uint32_t lkid, char *lvb_in); 57 int dlm_user_cancel(struct dlm_ls *ls, struct dlm_user_args *ua_tmp, 58 uint32_t flags, uint32_t lkid); 59 int dlm_user_purge(struct dlm_ls *ls, struct dlm_user_proc *proc, 60 int nodeid, int pid); 61 int dlm_user_deadlock(struct dlm_ls *ls, uint32_t flags, uint32_t lkid); 62 void dlm_clear_proc_locks(struct dlm_ls *ls, struct dlm_user_proc *proc); 63 64 static inline int is_master(struct dlm_rsb *r) 65 { 66 return !r->res_nodeid; 67 } 68 69 static inline void lock_rsb(struct dlm_rsb *r) 70 { 71 mutex_lock(&r->res_mutex); 72 } 73 74 static inline void unlock_rsb(struct dlm_rsb *r) 75 { 76 mutex_unlock(&r->res_mutex); 77 } 78 79 #endif 80 81