| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame^] | 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 | |
| 16 | static 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 | |
| 31 | static int __init proc_loadavg_init(void) |
| 32 | { |
| 33 | proc_create_single("loadavg", 0, NULL, loadavg_proc_show); |
| 34 | return 0; |
| 35 | } |
| 36 | fs_initcall(proc_loadavg_init); |