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// SPDX-License-Identifier: LGPL-2.1
/*
* Copyright (C) 2010 Red Hat Inc, Steven Rostedt <srostedt@redhat.com>
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "event-parse.h"
#include "trace-seq.h"
#define MINORBITS 20
#define MINORMASK ((1U << MINORBITS) - 1)
#define MAJOR(dev) ((unsigned int) ((dev) >> MINORBITS))
#define MINOR(dev) ((unsigned int) ((dev) & MINORMASK))
static unsigned long long
process_jbd2_dev_to_name(struct trace_seq *s, unsigned long long *args)
{
unsigned int dev = args[0];
trace_seq_printf(s, "%d:%d", MAJOR(dev), MINOR(dev));
return 0;
}
static unsigned long long
process_jiffies_to_msecs(struct trace_seq *s, unsigned long long *args)
{
unsigned long long jiffies = args[0];
trace_seq_printf(s, "%lld", jiffies);
return jiffies;
}
int TEP_PLUGIN_LOADER(struct tep_handle *tep)
{
tep_register_print_function(tep,
process_jbd2_dev_to_name,
TEP_FUNC_ARG_STRING,
"jbd2_dev_to_name",
TEP_FUNC_ARG_INT,
TEP_FUNC_ARG_VOID);
tep_register_print_function(tep,
process_jiffies_to_msecs,
TEP_FUNC_ARG_LONG,
"jiffies_to_msecs",
TEP_FUNC_ARG_LONG,
TEP_FUNC_ARG_VOID);
return 0;
}
void TEP_PLUGIN_UNLOADER(struct tep_handle *tep)
{
tep_unregister_print_function(tep, process_jbd2_dev_to_name,
"jbd2_dev_to_name");
tep_unregister_print_function(tep, process_jiffies_to_msecs,
"jiffies_to_msecs");
}
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