lock.h 2.3 KB

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  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. #ifndef __LOCK_DOT_H__
  13. #define __LOCK_DOT_H__
  14. void dlm_print_rsb(struct dlm_rsb *r);
  15. void dlm_dump_rsb(struct dlm_rsb *r);
  16. void dlm_print_lkb(struct dlm_lkb *lkb);
  17. int dlm_receive_message(struct dlm_header *hd, int nodeid, int recovery);
  18. int dlm_modes_compat(int mode1, int mode2);
  19. int dlm_find_rsb(struct dlm_ls *ls, char *name, int namelen,
  20. unsigned int flags, struct dlm_rsb **r_ret);
  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_purge_locks(struct dlm_ls *ls);
  26. void dlm_purge_mstcpy_locks(struct dlm_rsb *r);
  27. void dlm_grant_after_purge(struct dlm_ls *ls);
  28. int dlm_recover_waiters_post(struct dlm_ls *ls);
  29. void dlm_recover_waiters_pre(struct dlm_ls *ls);
  30. int dlm_recover_master_copy(struct dlm_ls *ls, struct dlm_rcom *rc);
  31. int dlm_recover_process_copy(struct dlm_ls *ls, struct dlm_rcom *rc);
  32. int dlm_user_request(struct dlm_ls *ls, struct dlm_user_args *ua, int mode,
  33. uint32_t flags, void *name, unsigned int namelen, uint32_t parent_lkid);
  34. int dlm_user_convert(struct dlm_ls *ls, struct dlm_user_args *ua_tmp,
  35. int mode, uint32_t flags, uint32_t lkid, char *lvb_in);
  36. int dlm_user_unlock(struct dlm_ls *ls, struct dlm_user_args *ua_tmp,
  37. uint32_t flags, uint32_t lkid, char *lvb_in);
  38. int dlm_user_cancel(struct dlm_ls *ls, struct dlm_user_args *ua_tmp,
  39. uint32_t flags, uint32_t lkid);
  40. void dlm_clear_proc_locks(struct dlm_ls *ls, struct dlm_user_proc *proc);
  41. static inline int is_master(struct dlm_rsb *r)
  42. {
  43. return !r->res_nodeid;
  44. }
  45. static inline void lock_rsb(struct dlm_rsb *r)
  46. {
  47. mutex_lock(&r->res_mutex);
  48. }
  49. static inline void unlock_rsb(struct dlm_rsb *r)
  50. {
  51. mutex_unlock(&r->res_mutex);
  52. }
  53. #endif