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path: root/package/rtc-rv5c386a

	Commit message (Expand)	Author	Age	Files	Lines
*	rtc-rv5c386a: make driver compile with kernel 2.6.36.	Hauke Mehrtens	2010-11-10	1	-10/+19
*	massive: replace occurences of .$(LINUX_KMOD_SUFFIX) with .ko after r21950	Claudio Mignanti	2010-07-12	1	-1/+1
*	remove linux 2.4 support from several packages	Felix Fietkau	2010-06-26	1	-5/+1
*	add RTC RV5C386A package	Florian Fainelli	2009-08-01	4	-0/+810

generated by cgit v1.2.3 (git 2.25.1) at 2025-02-13 02:47:38 +0000

/*
 * trace context switch
 *
 * Copyright (C) 2007 Steven Rostedt <srostedt@redhat.com>
 *
 */
#include <linux/module.h>
#include <linux/fs.h>
#include <linux/debugfs.h>
#include <linux/kallsyms.h>
#include <linux/uaccess.h>
#include <linux/ftrace.h>
#include <trace/events/sched.h>

#include "trace.h"

static struct trace_array	*ctx_trace;
static int __read_mostly	tracer_enabled;
static int			sched_ref;
static DEFINE_MUTEX(sched_register_mutex);
static int			sched_stopped;


void
tracing_sched_switch_trace(struct trace_array *tr,
			   struct task_struct *prev,
			   struct task_struct *next,
			   unsigned long flags, int pc)
{
	struct ftrace_event_call *call = &event_context_switch;
	struct ring_buffer *buffer = tr->buffer;
	struct ring_buffer_event *event;
	struct ctx_switch_entry *entry;

	event = trace_buffer_lock_reserve(buffer, TRACE_CTX,
					  sizeof(*entry), flags, pc);
	if (!event)
		return;
	entry	= ring_buffer_event_data(event);
	entry->prev_pid			= prev->pid;
	entry->prev_prio		= prev->prio;
	entry->prev_state		= prev->state;
	entry->next_pid			= next->pid;
	entry->next_prio		= next->prio;
	entry->next_state		= next->state;
	entry->next_cpu	= task_cpu(next);

	if (!filter_check_discard(call, entry, buffer, event))
		trace_buffer_unlock_commit(buffer, event, flags, pc);
}

static void
probe_sched_switch(void *ignore, struct task_struct *prev, struct task_struct *next)
{
	struct trace_array_cpu *data;
	unsigned long flags;
	int cpu;
	int pc;

	if (unlikely(!sched_ref))
		return;

	tracing_record_cmdline(prev);
	tracing_record_cmdline(next);

	if (!tracer_enabled || sched_stopped)
		return;

	pc = preempt_count();
	local_irq_save(flags);
	cpu = raw_smp_processor_id();
	data = ctx_trace->data[cpu];

	if (likely(!atomic_read(&data->disabled)))
		tracing_sched_switch_trace(ctx_trace, prev, next, flags, pc);

	local_irq_restore(flags);
}

void
tracing_sched_wakeup_trace(struct trace_array *tr,
			   struct task_struct *wakee,
			   struct task_struct *curr,
			   unsigned long flags, int pc)
{
	struct ftrace_event_call *call = &event_wakeup;
	struct ring_buffer_event *event;
	struct ctx_switch_entry *entry;
	struct ring_buffer *buffer = tr->buffer;

	event = trace_buffer_lock_reserve(buffer, TRACE_WAKE,