Linux kernel & device driver programming

Cross-Referenced Linux and Device Driver Code

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Version: [ 2.6.11.8 ] [ 2.6.25 ] [ 2.6.25.8 ] [ 2.6.31.13 ] Architecture: [ i386 ]
  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 
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