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 extern const struct seq_operations cpuinfo_op;
   9
  10 static int cpuinfo_open(struct inode *inode, struct file *file)
  11 {
  12         return seq_open(file, &cpuinfo_op);
  13 }
  14
  15 static const struct proc_ops cpuinfo_proc_ops = {
  16         .proc_flags     = PROC_ENTRY_PERMANENT,
  17         .proc_open      = cpuinfo_open,
  18         .proc_read_iter = seq_read_iter,
  19         .proc_lseek     = seq_lseek,
  20         .proc_release   = seq_release,
  21 };
  22
  23 static int __init proc_cpuinfo_init(void)
  24 {
  25         proc_create("cpuinfo", 0, NULL, &cpuinfo_proc_ops);
  26         return 0;
  27 }
  28 fs_initcall(proc_cpuinfo_init);