/* 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 */
Messung V0.5 in Prozent C=89 H=66 G=78
¤ Dauer der Verarbeitung: 0.9 Sekunden
(vorverarbeitet am 2026-09-27)
¤
*© Formatika GbR, Deutschland