loadavg.c 963 B

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  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. static int loadavg_proc_show(struct seq_file *m, void *v)
  14. {
  15. unsigned long avnrun[3];
  16. get_avenrun(avnrun, FIXED_1/200, 0);
  17. seq_printf(m, "%lu.%02lu %lu.%02lu %lu.%02lu %u/%d %d\n",
  18. LOAD_INT(avnrun[0]), LOAD_FRAC(avnrun[0]),
  19. LOAD_INT(avnrun[1]), LOAD_FRAC(avnrun[1]),
  20. LOAD_INT(avnrun[2]), LOAD_FRAC(avnrun[2]),
  21. nr_running(), nr_threads,
  22. idr_get_cursor(&task_active_pid_ns(current)->idr) - 1);
  23. return 0;
  24. }
  25. static int __init proc_loadavg_init(void)
  26. {
  27. struct proc_dir_entry *pde;
  28. pde = proc_create_single("loadavg", 0, NULL, loadavg_proc_show);
  29. pde_make_permanent(pde);
  30. return 0;
  31. }
  32. fs_initcall(proc_loadavg_init);