30 lines
651 B
C
30 lines
651 B
C
|
#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;
|
||
|
|
}
|
||
|
|
fs_initcall(proc_cmdline_init);
|