^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) /* SPDX-License-Identifier: GPL-2.0-only */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /******************************************************************************
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) *******************************************************************************
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) **
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) ** Copyright (C) 2005-2007 Red Hat, Inc. All rights reserved.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) **
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) **
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) *******************************************************************************
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) ******************************************************************************/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #ifndef __LOCK_DOT_H__
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #define __LOCK_DOT_H__
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) void dlm_dump_rsb(struct dlm_rsb *r);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) void dlm_dump_rsb_name(struct dlm_ls *ls, char *name, int len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) void dlm_print_lkb(struct dlm_lkb *lkb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) void dlm_receive_message_saved(struct dlm_ls *ls, struct dlm_message *ms,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) uint32_t saved_seq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) void dlm_receive_buffer(union dlm_packet *p, int nodeid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) int dlm_modes_compat(int mode1, int mode2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) void dlm_put_rsb(struct dlm_rsb *r);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) void dlm_hold_rsb(struct dlm_rsb *r);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) int dlm_put_lkb(struct dlm_lkb *lkb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) void dlm_scan_rsbs(struct dlm_ls *ls);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) int dlm_lock_recovery_try(struct dlm_ls *ls);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) void dlm_unlock_recovery(struct dlm_ls *ls);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) void dlm_scan_waiters(struct dlm_ls *ls);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) void dlm_scan_timeout(struct dlm_ls *ls);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) void dlm_adjust_timeouts(struct dlm_ls *ls);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) int dlm_master_lookup(struct dlm_ls *ls, int nodeid, char *name, int len,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) unsigned int flags, int *r_nodeid, int *result);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) int dlm_search_rsb_tree(struct rb_root *tree, char *name, int len,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) struct dlm_rsb **r_ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) void dlm_recover_purge(struct dlm_ls *ls);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) void dlm_purge_mstcpy_locks(struct dlm_rsb *r);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) void dlm_recover_grant(struct dlm_ls *ls);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) int dlm_recover_waiters_post(struct dlm_ls *ls);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) void dlm_recover_waiters_pre(struct dlm_ls *ls);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) int dlm_recover_master_copy(struct dlm_ls *ls, struct dlm_rcom *rc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) int dlm_recover_process_copy(struct dlm_ls *ls, struct dlm_rcom *rc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) int dlm_user_request(struct dlm_ls *ls, struct dlm_user_args *ua, int mode,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) uint32_t flags, void *name, unsigned int namelen,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) unsigned long timeout_cs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) int dlm_user_convert(struct dlm_ls *ls, struct dlm_user_args *ua_tmp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) int mode, uint32_t flags, uint32_t lkid, char *lvb_in,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) unsigned long timeout_cs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) int dlm_user_adopt_orphan(struct dlm_ls *ls, struct dlm_user_args *ua_tmp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) int mode, uint32_t flags, void *name, unsigned int namelen,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) unsigned long timeout_cs, uint32_t *lkid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) int dlm_user_unlock(struct dlm_ls *ls, struct dlm_user_args *ua_tmp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) uint32_t flags, uint32_t lkid, char *lvb_in);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) int dlm_user_cancel(struct dlm_ls *ls, struct dlm_user_args *ua_tmp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) uint32_t flags, uint32_t lkid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) int dlm_user_purge(struct dlm_ls *ls, struct dlm_user_proc *proc,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) int nodeid, int pid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) int dlm_user_deadlock(struct dlm_ls *ls, uint32_t flags, uint32_t lkid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) void dlm_clear_proc_locks(struct dlm_ls *ls, struct dlm_user_proc *proc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) static inline int is_master(struct dlm_rsb *r)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) return !r->res_nodeid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) static inline void lock_rsb(struct dlm_rsb *r)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) mutex_lock(&r->res_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) static inline void unlock_rsb(struct dlm_rsb *r)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) mutex_unlock(&r->res_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78)