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 14 static int loadavg_proc_show(struct seq_file *m, void *v) 15 { 16 unsigned long avnrun[3]; 17 18 get_avenrun(avnrun, FIXED_1/200, 0); 19 20 seq_printf(m, "%lu.%02lu %lu.%02lu %lu.%02lu %u/%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]), 24 nr_running(), nr_threads, 25 idr_get_cursor(&task_active_pid_ns(current)->idr) - 1); 26 return 0; 27 } 28 29 static int __init proc_loadavg_init(void) 30 { 31 struct proc_dir_entry *pde; 32 33 pde = proc_create_single("loadavg", 0, NULL, loadavg_proc_show); 34 pde_make_permanent(pde); 35 return 0; 36 } 37 fs_initcall(proc_loadavg_init); 38