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 */ 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_put_decimal_ull_width(p, " ", kstat_softirqs_cpu(i, j), 10); 24 seq_putc(p, '\n'); 25 } 26 return 0; 27 } 28 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