blob: 37994737c9834fe83d541b68d80b4925010e3bd0 [file] [log] [blame]
Keika Kobayashid3d64df2009-06-17 16:25:55 -07001#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
Davidlohr Bueso19cd56c2010-10-27 15:34:12 -070013 seq_printf(p, " ");
Keika Kobayashid3d64df2009-06-17 16:25:55 -070014 for_each_possible_cpu(i)
15 seq_printf(p, "CPU%-8d", i);
16 seq_printf(p, "\n");
17
18 for (i = 0; i < NR_SOFTIRQS; i++) {
Davidlohr Bueso19cd56c2010-10-27 15:34:12 -070019 seq_printf(p, "%12s:", softirq_to_name[i]);
Keika Kobayashid3d64df2009-06-17 16:25:55 -070020 for_each_possible_cpu(j)
21 seq_printf(p, " %10u", kstat_softirqs_cpu(i, j));
22 seq_printf(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);