62 lines
1.4 KiB
C
62 lines
1.4 KiB
C
|
// 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");
|
||
|
|
}
|