#include <linux/fs.h>#include <linux/init.h>#include <linux/proc_fs.h>#include <linux/seq_file.h> static int cmdline_proc_show(struct seq_file *m, void *v){	seq_printf(m, "%s\n", saved_command_line);	return 0;} static int cmdline_proc_open(struct inode *inode, struct file *file){	return single_open(file, cmdline_proc_show, NULL);} static const struct file_operations cmdline_proc_fops = {	.open		= cmdline_proc_open,	.read		= seq_read,	.llseek		= seq_lseek,	.release	= single_release,}; static int __init proc_cmdline_init(void){	proc_create("cmdline", 0, NULL, &cmdline_proc_fops);	return 0;}module_init(proc_cmdline_init);