mirror of https://gitee.com/openkylin/linux.git
45 lines
994 B
C
45 lines
994 B
C
#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_printf(p, " ");
|
|
for_each_possible_cpu(i)
|
|
seq_printf(p, "CPU%-8d", i);
|
|
seq_printf(p, "\n");
|
|
|
|
for (i = 0; i < NR_SOFTIRQS; i++) {
|
|
seq_printf(p, "%8s:", softirq_to_name[i]);
|
|
for_each_possible_cpu(j)
|
|
seq_printf(p, " %10u", kstat_softirqs_cpu(i, j));
|
|
seq_printf(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);
|