cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
Log | Files | Refs | README | LICENSE | sfeed.txt

lock.h (3246B)

      1/* SPDX-License-Identifier: GPL-2.0-only */
      2/******************************************************************************
      3*******************************************************************************
      4**
      5**  Copyright (C) 2005-2007 Red Hat, Inc.  All rights reserved.
      6**
      7**
      8*******************************************************************************
      9******************************************************************************/
     10
     11#ifndef __LOCK_DOT_H__
     12#define __LOCK_DOT_H__
     13
     14void dlm_dump_rsb(struct dlm_rsb *r);
     15void dlm_dump_rsb_name(struct dlm_ls *ls, char *name, int len);
     16void dlm_print_lkb(struct dlm_lkb *lkb);
     17void dlm_receive_message_saved(struct dlm_ls *ls, struct dlm_message *ms,
     18			       uint32_t saved_seq);
     19void dlm_receive_buffer(union dlm_packet *p, int nodeid);
     20int dlm_modes_compat(int mode1, int mode2);
     21void dlm_put_rsb(struct dlm_rsb *r);
     22void dlm_hold_rsb(struct dlm_rsb *r);
     23int dlm_put_lkb(struct dlm_lkb *lkb);
     24void dlm_scan_rsbs(struct dlm_ls *ls);
     25int dlm_lock_recovery_try(struct dlm_ls *ls);
     26void dlm_unlock_recovery(struct dlm_ls *ls);
     27void dlm_scan_waiters(struct dlm_ls *ls);
     28void dlm_scan_timeout(struct dlm_ls *ls);
     29void dlm_adjust_timeouts(struct dlm_ls *ls);
     30int dlm_master_lookup(struct dlm_ls *ls, int nodeid, char *name, int len,
     31		      unsigned int flags, int *r_nodeid, int *result);
     32
     33int dlm_search_rsb_tree(struct rb_root *tree, char *name, int len,
     34			struct dlm_rsb **r_ret);
     35
     36void dlm_recover_purge(struct dlm_ls *ls);
     37void dlm_purge_mstcpy_locks(struct dlm_rsb *r);
     38void dlm_recover_grant(struct dlm_ls *ls);
     39int dlm_recover_waiters_post(struct dlm_ls *ls);
     40void dlm_recover_waiters_pre(struct dlm_ls *ls);
     41int dlm_recover_master_copy(struct dlm_ls *ls, struct dlm_rcom *rc);
     42int dlm_recover_process_copy(struct dlm_ls *ls, struct dlm_rcom *rc);
     43
     44int dlm_user_request(struct dlm_ls *ls, struct dlm_user_args *ua, int mode,
     45	uint32_t flags, void *name, unsigned int namelen,
     46	unsigned long timeout_cs);
     47int dlm_user_convert(struct dlm_ls *ls, struct dlm_user_args *ua_tmp,
     48	int mode, uint32_t flags, uint32_t lkid, char *lvb_in,
     49	unsigned long timeout_cs);
     50int dlm_user_adopt_orphan(struct dlm_ls *ls, struct dlm_user_args *ua_tmp,
     51	int mode, uint32_t flags, void *name, unsigned int namelen,
     52	unsigned long timeout_cs, uint32_t *lkid);
     53int dlm_user_unlock(struct dlm_ls *ls, struct dlm_user_args *ua_tmp,
     54	uint32_t flags, uint32_t lkid, char *lvb_in);
     55int dlm_user_cancel(struct dlm_ls *ls,  struct dlm_user_args *ua_tmp,
     56	uint32_t flags, uint32_t lkid);
     57int dlm_user_purge(struct dlm_ls *ls, struct dlm_user_proc *proc,
     58	int nodeid, int pid);
     59int dlm_user_deadlock(struct dlm_ls *ls, uint32_t flags, uint32_t lkid);
     60void dlm_clear_proc_locks(struct dlm_ls *ls, struct dlm_user_proc *proc);
     61int dlm_debug_add_lkb(struct dlm_ls *ls, uint32_t lkb_id, char *name, int len,
     62		      int lkb_nodeid, unsigned int lkb_flags, int lkb_status);
     63int dlm_debug_add_lkb_to_waiters(struct dlm_ls *ls, uint32_t lkb_id,
     64				 int mstype, int to_nodeid);
     65
     66static inline int is_master(struct dlm_rsb *r)
     67{
     68	return !r->res_nodeid;
     69}
     70
     71static inline void lock_rsb(struct dlm_rsb *r)
     72{
     73	mutex_lock(&r->res_mutex);
     74}
     75
     76static inline void unlock_rsb(struct dlm_rsb *r)
     77{
     78	mutex_unlock(&r->res_mutex);
     79}
     80
     81#endif
     82