46 lines
1.0 KiB
C
46 lines
1.0 KiB
C
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// SPDX-License-Identifier: GPL-2.0
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#include <linux/init.h>
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#include <linux/kernel_stat.h>
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#include <linux/proc_fs.h>
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#include <linux/seq_file.h>
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/*
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* /proc/softirqs ... display the number of softirqs
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*/
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static int show_softirqs(struct seq_file *p, void *v)
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{
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int i, j;
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seq_puts(p, " ");
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for_each_possible_cpu(i)
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seq_printf(p, "CPU%-8d", i);
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seq_putc(p, '\n');
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for (i = 0; i < NR_SOFTIRQS; i++) {
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seq_printf(p, "%12s:", softirq_to_name[i]);
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for_each_possible_cpu(j)
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seq_printf(p, " %10u", kstat_softirqs_cpu(i, j));
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seq_putc(p, '\n');
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}
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return 0;
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}
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static int softirqs_open(struct inode *inode, struct file *file)
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{
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return single_open(file, show_softirqs, NULL);
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}
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static const struct file_operations proc_softirqs_operations = {
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.open = softirqs_open,
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.read = seq_read,
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.llseek = seq_lseek,
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.release = single_release,
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};
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static int __init proc_softirqs_init(void)
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{
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proc_create("softirqs", 0, NULL, &proc_softirqs_operations);
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return 0;
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}
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fs_initcall(proc_softirqs_init);
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