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
 7/*
 8 * /proc/softirqs  ... display the number of softirqs
 9 */
10static int show_softirqs(struct seq_file *p, void *v)
11{
12	int i, j;
13
14	seq_puts(p, "                    ");
15	for_each_possible_cpu(i)
16		seq_printf(p, "CPU%-8d", i);
17	seq_putc(p, '\n');
18
19	for (i = 0; i < NR_SOFTIRQS; i++) {
20		seq_printf(p, "%12s:", softirq_to_name[i]);
21		for_each_possible_cpu(j)
22			seq_printf(p, " %10u", kstat_softirqs_cpu(i, j));
23		seq_putc(p, '\n');
24	}
25	return 0;
26}
27
28static int softirqs_open(struct inode *inode, struct file *file)
29{
30	return single_open(file, show_softirqs, NULL);
31}
32
33static const struct file_operations proc_softirqs_operations = {
34	.open		= softirqs_open,
35	.read		= seq_read,
36	.llseek		= seq_lseek,
37	.release	= single_release,
38};
39
40static int __init proc_softirqs_init(void)
41{
42	proc_create("softirqs", 0, NULL, &proc_softirqs_operations);
43	return 0;
44}
45fs_initcall(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
 7/*
 8 * /proc/softirqs  ... display the number of softirqs
 9 */
10static int show_softirqs(struct seq_file *p, void *v)
11{
12	int i, j;
13
14	seq_puts(p, "                    ");
15	for_each_possible_cpu(i)
16		seq_printf(p, "CPU%-8d", i);
17	seq_putc(p, '\n');
18
19	for (i = 0; i < NR_SOFTIRQS; i++) {
20		seq_printf(p, "%12s:", softirq_to_name[i]);
21		for_each_possible_cpu(j)
22			seq_printf(p, " %10u", kstat_softirqs_cpu(i, j));
23		seq_putc(p, '\n');
24	}
25	return 0;
26}
27
 
 
 
 
 
 
 
 
 
 
 
 
28static int __init proc_softirqs_init(void)
29{
30	proc_create_single("softirqs", 0, NULL, show_softirqs);
31	return 0;
32}
33fs_initcall(proc_softirqs_init);