linuxdebug/fs/proc/softirqs.c

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2024-07-16 15:50:57 +02:00
// SPDX-License-Identifier: GPL-2.0
#include <linux/init.h>
#include <linux/kernel_stat.h>
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
#include "internal.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 __init proc_softirqs_init(void)
{
struct proc_dir_entry *pde;
pde = proc_create_single("softirqs", 0, NULL, show_softirqs);
pde_make_permanent(pde);
return 0;
}
fs_initcall(proc_softirqs_init);