1// SPDX-License-Identifier: GPL-2.0
 2#include <linux/fs.h>
 3#include <linux/init.h>
 4#include <linux/pid_namespace.h>
 5#include <linux/proc_fs.h>
 6#include <linux/sched.h>
 7#include <linux/sched/loadavg.h>
 8#include <linux/sched/stat.h>
 9#include <linux/seq_file.h>
10#include <linux/seqlock.h>
11#include <linux/time.h>
12#include "internal.h"
 
 
13
14static int loadavg_proc_show(struct seq_file *m, void *v)
15{
16	unsigned long avnrun[3];
17
18	get_avenrun(avnrun, FIXED_1/200, 0);
19
20	seq_printf(m, "%lu.%02lu %lu.%02lu %lu.%02lu %u/%d %d\n",
21		LOAD_INT(avnrun[0]), LOAD_FRAC(avnrun[0]),
22		LOAD_INT(avnrun[1]), LOAD_FRAC(avnrun[1]),
23		LOAD_INT(avnrun[2]), LOAD_FRAC(avnrun[2]),
24		nr_running(), nr_threads,
25		idr_get_cursor(&task_active_pid_ns(current)->idr) - 1);
26	return 0;
27}
28
29static int __init proc_loadavg_init(void)
30{
31	struct proc_dir_entry *pde;
 
32
33	pde = proc_create_single("loadavg", 0, NULL, loadavg_proc_show);
34	pde_make_permanent(pde);
 
 
 
 
 
 
 
 
35	return 0;
36}
37fs_initcall(proc_loadavg_init);

 1// SPDX-License-Identifier: GPL-2.0
 2#include <linux/fs.h>
 3#include <linux/init.h>
 4#include <linux/pid_namespace.h>
 5#include <linux/proc_fs.h>
 6#include <linux/sched.h>
 7#include <linux/sched/loadavg.h>
 8#include <linux/sched/stat.h>
 9#include <linux/seq_file.h>
10#include <linux/seqlock.h>
11#include <linux/time.h>
12
13#define LOAD_INT(x) ((x) >> FSHIFT)
14#define LOAD_FRAC(x) LOAD_INT(((x) & (FIXED_1-1)) * 100)
15
16static int loadavg_proc_show(struct seq_file *m, void *v)
17{
18	unsigned long avnrun[3];
19
20	get_avenrun(avnrun, FIXED_1/200, 0);
21
22	seq_printf(m, "%lu.%02lu %lu.%02lu %lu.%02lu %ld/%d %d\n",
23		LOAD_INT(avnrun[0]), LOAD_FRAC(avnrun[0]),
24		LOAD_INT(avnrun[1]), LOAD_FRAC(avnrun[1]),
25		LOAD_INT(avnrun[2]), LOAD_FRAC(avnrun[2]),
26		nr_running(), nr_threads,
27		idr_get_cursor(&task_active_pid_ns(current)->idr) - 1);
28	return 0;
29}
30
31static int loadavg_proc_open(struct inode *inode, struct file *file)
32{
33	return single_open(file, loadavg_proc_show, NULL);
34}
35
36static const struct file_operations loadavg_proc_fops = {
37	.open		= loadavg_proc_open,
38	.read		= seq_read,
39	.llseek		= seq_lseek,
40	.release	= single_release,
41};
42
43static int __init proc_loadavg_init(void)
44{
45	proc_create("loadavg", 0, NULL, &loadavg_proc_fops);
46	return 0;
47}
48fs_initcall(proc_loadavg_init);