mirror of
https://github.com/torvalds/linux
synced 2024-07-21 02:23:16 +00:00
a61c01e8f4
/proc/cmdline is never removed, mark is as permanent for slightly faster open and close. Link: https://lkml.kernel.org/r/Y66xAveh2yUsP7m9@p183 Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
25 lines
540 B
C
25 lines
540 B
C
// SPDX-License-Identifier: GPL-2.0
|
|
#include <linux/fs.h>
|
|
#include <linux/init.h>
|
|
#include <linux/proc_fs.h>
|
|
#include <linux/seq_file.h>
|
|
#include "internal.h"
|
|
|
|
static int cmdline_proc_show(struct seq_file *m, void *v)
|
|
{
|
|
seq_puts(m, saved_command_line);
|
|
seq_putc(m, '\n');
|
|
return 0;
|
|
}
|
|
|
|
static int __init proc_cmdline_init(void)
|
|
{
|
|
struct proc_dir_entry *pde;
|
|
|
|
pde = proc_create_single("cmdline", 0, NULL, cmdline_proc_show);
|
|
pde_make_permanent(pde);
|
|
pde->size = saved_command_line_len + 1;
|
|
return 0;
|
|
}
|
|
fs_initcall(proc_cmdline_init);
|