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| #include <linux/init.h>
| #include <linux/kernel_stat.h>
| #include <linux/proc_fs.h>
| #include <linux/seq_file.h>
|
| /*
| * /proc/softirqs ... display the number of softirqs
| */
| static int show_softirqs(struct seq_file *p, void *v)
| {
| int i, j;
|
| seq_puts(p, " ");
| for_each_possible_cpu(i)
| seq_printf(p, "CPU%-8d", i);
| seq_putc(p, '\n');
|
| for (i = 0; i < NR_SOFTIRQS; i++) {
| seq_printf(p, "%12s:", softirq_to_name[i]);
| for_each_possible_cpu(j)
| seq_printf(p, " %10u", kstat_softirqs_cpu(i, j));
| seq_putc(p, '\n');
| }
| return 0;
| }
|
| static int softirqs_open(struct inode *inode, struct file *file)
| {
| return single_open(file, show_softirqs, NULL);
| }
|
| static const struct file_operations proc_softirqs_operations = {
| .open = softirqs_open,
| .read = seq_read,
| .llseek = seq_lseek,
| .release = single_release,
| };
|
| static int __init proc_softirqs_init(void)
| {
| proc_create("softirqs", 0, NULL, &proc_softirqs_operations);
| return 0;
| }
| fs_initcall(proc_softirqs_init);
|
|
