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 */
show_softirqs(struct seq_file * p,void * v)11 static 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_printf(p, " %10u", kstat_softirqs_cpu(i, j));
24 seq_putc(p, '\n');
25 }
26 return 0;
27 }
28
proc_softirqs_init(void)29 static 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 }
37 fs_initcall(proc_softirqs_init);
38