blob: aec66e6c2060b8f1a3f24bfb44a90d48f5bb5af2 [file] [log] [blame]
Alexey Dobriyan5b3acc82008-10-03 02:21:47 +04001#include <linux/fs.h>
2#include <linux/init.h>
3#include <linux/pid_namespace.h>
4#include <linux/proc_fs.h>
5#include <linux/sched.h>
6#include <linux/seq_file.h>
7#include <linux/seqlock.h>
8#include <linux/time.h>
9
10#define LOAD_INT(x) ((x) >> FSHIFT)
11#define LOAD_FRAC(x) LOAD_INT(((x) & (FIXED_1-1)) * 100)
12
13static int loadavg_proc_show(struct seq_file *m, void *v)
14{
Thomas Gleixner2d024942009-05-02 20:08:52 +020015 unsigned long avnrun[3];
Alexey Dobriyan5b3acc82008-10-03 02:21:47 +040016
Thomas Gleixner2d024942009-05-02 20:08:52 +020017 get_avenrun(avnrun, FIXED_1/200, 0);
Alexey Dobriyan5b3acc82008-10-03 02:21:47 +040018
Thomas Gleixner2d024942009-05-02 20:08:52 +020019 seq_printf(m, "%lu.%02lu %lu.%02lu %lu.%02lu %ld/%d %d\n",
20 LOAD_INT(avnrun[0]), LOAD_FRAC(avnrun[0]),
21 LOAD_INT(avnrun[1]), LOAD_FRAC(avnrun[1]),
22 LOAD_INT(avnrun[2]), LOAD_FRAC(avnrun[2]),
Alexey Dobriyan5b3acc82008-10-03 02:21:47 +040023 nr_running(), nr_threads,
24 task_active_pid_ns(current)->last_pid);
25 return 0;
26}
27
28static int loadavg_proc_open(struct inode *inode, struct file *file)
29{
30 return single_open(file, loadavg_proc_show, NULL);
31}
32
33static const struct file_operations loadavg_proc_fops = {
34 .open = loadavg_proc_open,
35 .read = seq_read,
36 .llseek = seq_lseek,
37 .release = single_release,
38};
39
40static int __init proc_loadavg_init(void)
41{
42 proc_create("loadavg", 0, NULL, &loadavg_proc_fops);
43 return 0;
44}
Paul Gortmakerabaf3782014-01-23 15:55:45 -080045fs_initcall(proc_loadavg_init);