LXR linux/fs/proc/cpuinfo.c

   1// SPDX-License-Identifier: GPL-2.0
   2#include <linux/cpufreq.h>
   3#include <linux/fs.h>
   4#include <linux/init.h>
   5#include <linux/proc_fs.h>
   6#include <linux/seq_file.h>
   7
   8__weak void arch_freq_prepare_all(void)
   9{
  10}
  11
  12extern const struct seq_operations cpuinfo_op;
  13static int cpuinfo_open(struct inode *inode, struct file *file)
  14{
  15        arch_freq_prepare_all();
  16        return seq_open(file, &cpuinfo_op);
  17}
  18
  19static const struct proc_ops cpuinfo_proc_ops = {
  20        .proc_flags     = PROC_ENTRY_PERMANENT,
  21        .proc_open      = cpuinfo_open,
  22        .proc_read_iter = seq_read_iter,
  23        .proc_lseek     = seq_lseek,
  24        .proc_release   = seq_release,
  25};
  26
  27static int __init proc_cpuinfo_init(void)
  28{
  29        proc_create("cpuinfo", 0, NULL, &cpuinfo_proc_ops);
  30        return 0;
  31}
  32fs_initcall(proc_cpuinfo_init);
  33