fs/proc/cpuinfo.c

0001 // SPDX-License-Identifier: GPL-2.0
0002 #include <linux/cpufreq.h>
0003 #include <linux/fs.h>
0004 #include <linux/init.h>
0005 #include <linux/proc_fs.h>
0006 #include <linux/seq_file.h>
0007
0008 extern const struct seq_operations cpuinfo_op;
0009
0010 static int cpuinfo_open(struct inode *inode, struct file *file)
0011 {
0012     return seq_open(file, &cpuinfo_op);
0013 }
0014
0015 static const struct proc_ops cpuinfo_proc_ops = {
0016     .proc_flags = PROC_ENTRY_PERMANENT,
0017     .proc_open  = cpuinfo_open,
0018     .proc_read_iter = seq_read_iter,
0019     .proc_lseek = seq_lseek,
0020     .proc_release   = seq_release,
0021 };
0022
0023 static int __init proc_cpuinfo_init(void)
0024 {
0025     proc_create("cpuinfo", 0, NULL, &cpuinfo_proc_ops);
0026     return 0;
0027 }
0028 fs_initcall(proc_cpuinfo_init);