kernel cmdline

@kernel/fs/proc/cmdline.c

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);