#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; } module_init(proc_softirqs_init);