Commit | Line | Data |
---|---|---|
5b3acc8d AD |
1 | #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> | |
4f17722c | 6 | #include <linux/sched/loadavg.h> |
03441a34 | 7 | #include <linux/sched/stat.h> |
5b3acc8d AD |
8 | #include <linux/seq_file.h> |
9 | #include <linux/seqlock.h> | |
10 | #include <linux/time.h> | |
11 | ||
12 | #define LOAD_INT(x) ((x) >> FSHIFT) | |
13 | #define LOAD_FRAC(x) LOAD_INT(((x) & (FIXED_1-1)) * 100) | |
14 | ||
15 | static int loadavg_proc_show(struct seq_file *m, void *v) | |
16 | { | |
2d02494f | 17 | unsigned long avnrun[3]; |
5b3acc8d | 18 | |
2d02494f | 19 | get_avenrun(avnrun, FIXED_1/200, 0); |
5b3acc8d | 20 | |
2d02494f TG |
21 | seq_printf(m, "%lu.%02lu %lu.%02lu %lu.%02lu %ld/%d %d\n", |
22 | LOAD_INT(avnrun[0]), LOAD_FRAC(avnrun[0]), | |
23 | LOAD_INT(avnrun[1]), LOAD_FRAC(avnrun[1]), | |
24 | LOAD_INT(avnrun[2]), LOAD_FRAC(avnrun[2]), | |
5b3acc8d AD |
25 | nr_running(), nr_threads, |
26 | task_active_pid_ns(current)->last_pid); | |
27 | return 0; | |
28 | } | |
29 | ||
30 | static int loadavg_proc_open(struct inode *inode, struct file *file) | |
31 | { | |
32 | return single_open(file, loadavg_proc_show, NULL); | |
33 | } | |
34 | ||
35 | static const struct file_operations loadavg_proc_fops = { | |
36 | .open = loadavg_proc_open, | |
37 | .read = seq_read, | |
38 | .llseek = seq_lseek, | |
39 | .release = single_release, | |
40 | }; | |
41 | ||
42 | static int __init proc_loadavg_init(void) | |
43 | { | |
44 | proc_create("loadavg", 0, NULL, &loadavg_proc_fops); | |
45 | return 0; | |
46 | } | |
abaf3787 | 47 | fs_initcall(proc_loadavg_init); |