LXR linux/fs/proc/loadavg.c

   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
  13static int loadavg_proc_show(struct seq_file *m, void *v)
  14{
  15        unsigned long avnrun[3];
  16
  17        get_avenrun(avnrun, FIXED_1/200, 0);
  18
  19        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]),
  23                nr_running(), nr_threads,
  24                idr_get_cursor(&task_active_pid_ns(current)->idr) - 1);
  25        return 0;
  26}
  27
  28static int __init proc_loadavg_init(void)
  29{
  30        proc_create_single("loadavg", 0, NULL, loadavg_proc_show);
  31        return 0;
  32}
  33fs_initcall(proc_loadavg_init);
  34