From efb1a57d90cae6af1ddd32f1b920c924a711aba5 Mon Sep 17 00:00:00 2001
From: Alexey Dobriyan
Date: Tue, 6 Feb 2018 15:37:24 -0800
Subject: fs/proc: use __ro_after_init

/proc/self inode numbers, value of proc_inode_cache and st_nlink of
/proc/$TGID are fixed constants.

Link: http://lkml.kernel.org/r/20180103184707.GA31849@avx2
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 fs/proc/thread_self.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'fs/proc/thread_self.c')

diff --git a/fs/proc/thread_self.c b/fs/proc/thread_self.c
index 6c1a54716337..9d2efaca499f 100644
--- a/fs/proc/thread_self.c
+++ b/fs/proc/thread_self.c
@@ -1,4 +1,5 @@
 // SPDX-License-Identifier: GPL-2.0
+#include <linux/cache.h>
 #include <linux/sched.h>
 #include <linux/slab.h>
 #include <linux/pid_namespace.h>
@@ -30,7 +31,7 @@ static const struct inode_operations proc_thread_self_inode_operations = {
 	.get_link	= proc_thread_self_get_link,
 };
 
-static unsigned thread_self_inum;
+static unsigned thread_self_inum __ro_after_init;
 
 int proc_setup_thread_self(struct super_block *s)
 {
-- 
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