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