/* SPDX-License-Identifier: GPL-2.0 *//* * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the * GNU General Public License for more details. * * Authors: Waiman Long <longman@redhat.com> */ #ifndef __LOCKING_LOCK_EVENTS_H#define __LOCKING_LOCK_EVENTS_H enum lock_events { #include "lock_events_list.h" 	lockevent_num,	/* Total number of lock event counts */	LOCKEVENT_reset_cnts = lockevent_num,}; #ifdef CONFIG_LOCK_EVENT_COUNTS/* * Per-cpu counters */DECLARE_PER_CPU(unsigned long, lockevents[lockevent_num]); /* * Increment the statistical counters. use raw_cpu_inc() because of lower * overhead and we don't care if we loose the occasional update. */static inline void __lockevent_inc(enum lock_events event, bool cond){	if (cond)		raw_cpu_inc(lockevents[event]);} #define lockevent_inc(ev)	  __lockevent_inc(LOCKEVENT_ ##ev, true)#define lockevent_cond_inc(ev, c) __lockevent_inc(LOCKEVENT_ ##ev, c) static inline void __lockevent_add(enum lock_events event, int inc){	raw_cpu_add(lockevents[event], inc);} #define lockevent_add(ev, c)	__lockevent_add(LOCKEVENT_ ##ev, c) #else  /* CONFIG_LOCK_EVENT_COUNTS */ #define lockevent_inc(ev)#define lockevent_add(ev, c)		do { (void)(c); } while (0)#define lockevent_cond_inc(ev, c)	do { (void)(c); } while (0) #endif /* CONFIG_LOCK_EVENT_COUNTS */ ssize_t lockevent_read(struct file *file, char __user *user_buf,		       size_t count, loff_t *ppos); #endif /* __LOCKING_LOCK_EVENTS_H */