From ef1d61781bc6708ccc4a21262cc80a7dad952e04 Mon Sep 17 00:00:00 2001
From: Alexey Dobriyan <adobriyan@gmail.com>
Date: Tue, 20 Sep 2022 20:35:23 +0300
Subject: proc: mark more files as permanent

Mark
	/proc/devices
	/proc/kpagecount
	/proc/kpageflags
	/proc/kpagecgroup
	/proc/loadavg
	/proc/meminfo
	/proc/softirqs
	/proc/uptime
	/proc/version

as permanent /proc entries, saving alloc/free and some list/spinlock ops
per use.

These files are never removed by the kernel so it is OK to mark them.

Link: https://lkml.kernel.org/r/Yyn527DzDMa+r0Yj@localhost.localdomain
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
 fs/proc/devices.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

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

diff --git a/fs/proc/devices.c b/fs/proc/devices.c
index 837971e74109..fe7bfcb7d049 100644
--- a/fs/proc/devices.c
+++ b/fs/proc/devices.c
@@ -4,6 +4,7 @@
 #include <linux/proc_fs.h>
 #include <linux/seq_file.h>
 #include <linux/blkdev.h>
+#include "internal.h"
 
 static int devinfo_show(struct seq_file *f, void *v)
 {
@@ -54,7 +55,10 @@ static const struct seq_operations devinfo_ops = {
 
 static int __init proc_devices_init(void)
 {
-	proc_create_seq("devices", 0, NULL, &devinfo_ops);
+	struct proc_dir_entry *pde;
+
+	pde = proc_create_seq("devices", 0, NULL, &devinfo_ops);
+	pde_make_permanent(pde);
 	return 0;
 }
 fs_initcall(proc_devices_init);
-- 
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