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 */
show_softirqs(struct seq_file * p,void * v)10 static 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
proc_softirqs_init(void)28 static int __init proc_softirqs_init(void)
29 {
30 proc_create_single("softirqs", 0, NULL, show_softirqs);
31 return 0;
32 }
33 fs_initcall(proc_softirqs_init);
34