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 file_operations proc_cpuinfo_operations = {
  20        .open           = cpuinfo_open,
  21        .read           = seq_read,
  22        .llseek         = seq_lseek,
  23        .release        = seq_release,
  24};
  25
  26static int __init proc_cpuinfo_init(void)
  27{
  28        proc_create("cpuinfo", 0, NULL, &proc_cpuinfo_operations);
  29        return 0;
  30}
  31fs_initcall(proc_cpuinfo_init);
  32