1#include <linux/init.h>
 2#include <linux/kernel_stat.h>
 3#include <linux/proc_fs.h>
 4#include <linux/seq_file.h>
 
 5
 6/*
 7 * /proc/softirqs  ... display the number of softirqs
 8 */
 9static int show_softirqs(struct seq_file *p, void *v)
10{
11	int i, j;
12
13	seq_puts(p, "                    ");
14	for_each_possible_cpu(i)
15		seq_printf(p, "CPU%-8d", i);
16	seq_putc(p, '\n');
17
18	for (i = 0; i < NR_SOFTIRQS; i++) {
19		seq_printf(p, "%12s:", softirq_to_name[i]);
20		for_each_possible_cpu(j)
21			seq_printf(p, " %10u", kstat_softirqs_cpu(i, j));
22		seq_putc(p, '\n');
23	}
24	return 0;
25}
26
27static int softirqs_open(struct inode *inode, struct file *file)
28{
29	return single_open(file, show_softirqs, NULL);
30}
31
32static const struct file_operations proc_softirqs_operations = {
33	.open		= softirqs_open,
34	.read		= seq_read,
35	.llseek		= seq_lseek,
36	.release	= single_release,
37};
38
39static int __init proc_softirqs_init(void)
40{
41	proc_create("softirqs", 0, NULL, &proc_softirqs_operations);
 
 
 
42	return 0;
43}
44module_init(proc_softirqs_init);

 1// SPDX-License-Identifier: GPL-2.0
 2#include <linux/init.h>
 3#include <linux/kernel_stat.h>
 4#include <linux/proc_fs.h>
 5#include <linux/seq_file.h>
 6#include "internal.h"
 7
 8/*
 9 * /proc/softirqs  ... display the number of softirqs
10 */
11static int show_softirqs(struct seq_file *p, void *v)
12{
13	int i, j;
14
15	seq_puts(p, "                    ");
16	for_each_possible_cpu(i)
17		seq_printf(p, "CPU%-8d", i);
18	seq_putc(p, '\n');
19
20	for (i = 0; i < NR_SOFTIRQS; i++) {
21		seq_printf(p, "%12s:", softirq_to_name[i]);
22		for_each_possible_cpu(j)
23			seq_put_decimal_ull_width(p, " ", kstat_softirqs_cpu(i, j), 10);
24		seq_putc(p, '\n');
25	}
26	return 0;
27}
28
 
 
 
 
 
 
 
 
 
 
 
 
29static int __init proc_softirqs_init(void)
30{
31	struct proc_dir_entry *pde;
32
33	pde = proc_create_single("softirqs", 0, NULL, show_softirqs);
34	pde_make_permanent(pde);
35	return 0;
36}
37fs_initcall(proc_softirqs_init);