https://github.com/torvalds/linux
- HEAD
- refs/heads/arm64-uaccess
- refs/heads/dependabot/pip/drivers/gpu/drm/ci/xfails/certifi-2024.7.4
- refs/heads/dependabot/pip/drivers/gpu/drm/ci/xfails/idna-3.7
- refs/heads/dependabot/pip/drivers/gpu/drm/ci/xfails/requests-2.32.2
- refs/heads/dependabot/pip/drivers/gpu/drm/ci/xfails/setuptools-70.0.0
- refs/heads/dependabot/pip/drivers/gpu/drm/ci/xfails/urllib3-2.2.2
- refs/heads/master
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Tip revision: 64291f7db5bd8150a74ad2036f1037e6a0428df2 authored by Linus Torvalds on 30 August 2015, 18:34:09 UTC
Linux 4.2
Linux 4.2
Tip revision: 64291f7
latencytop.h
/*
* latencytop.h: Infrastructure for displaying latency
*
* (C) Copyright 2008 Intel Corporation
* Author: Arjan van de Ven <arjan@linux.intel.com>
*
*/
#ifndef _INCLUDE_GUARD_LATENCYTOP_H_
#define _INCLUDE_GUARD_LATENCYTOP_H_
#include <linux/compiler.h>
struct task_struct;
#ifdef CONFIG_LATENCYTOP
#define LT_SAVECOUNT 32
#define LT_BACKTRACEDEPTH 12
struct latency_record {
unsigned long backtrace[LT_BACKTRACEDEPTH];
unsigned int count;
unsigned long time;
unsigned long max;
};
extern int latencytop_enabled;
void __account_scheduler_latency(struct task_struct *task, int usecs, int inter);
static inline void
account_scheduler_latency(struct task_struct *task, int usecs, int inter)
{
if (unlikely(latencytop_enabled))
__account_scheduler_latency(task, usecs, inter);
}
void clear_all_latency_tracing(struct task_struct *p);
#else
static inline void
account_scheduler_latency(struct task_struct *task, int usecs, int inter)
{
}
static inline void clear_all_latency_tracing(struct task_struct *p)
{
}
#endif
#endif