From: Vasily Gorbik <gor@linux.ibm.com>
Date: Tue, 25 Jun 2019 22:00:42 +0000 (+0200)
Subject: s390/mm: use shared variables for sysctl range check
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=ac7a0fcea39d29125b83b73583463e5ab70fdb37;p=linux.git

s390/mm: use shared variables for sysctl range check

Since commit eec4844fae7c ("proc/sysctl: add shared variables for range
check") special shared variables are available for sysctl range check.
Reuse them for /proc/sys/vm/allocate_pgste proc handler.

Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
---

diff --git a/arch/s390/mm/pgalloc.c b/arch/s390/mm/pgalloc.c
index 99e06213a22b7..54fcdf66ae967 100644
--- a/arch/s390/mm/pgalloc.c
+++ b/arch/s390/mm/pgalloc.c
@@ -17,8 +17,6 @@
 
 #ifdef CONFIG_PGSTE
 
-static int page_table_allocate_pgste_min = 0;
-static int page_table_allocate_pgste_max = 1;
 int page_table_allocate_pgste = 0;
 EXPORT_SYMBOL(page_table_allocate_pgste);
 
@@ -29,8 +27,8 @@ static struct ctl_table page_table_sysctl[] = {
 		.maxlen		= sizeof(int),
 		.mode		= S_IRUGO | S_IWUSR,
 		.proc_handler	= proc_dointvec_minmax,
-		.extra1		= &page_table_allocate_pgste_min,
-		.extra2		= &page_table_allocate_pgste_max,
+		.extra1		= SYSCTL_ZERO,
+		.extra2		= SYSCTL_ONE,
 	},
 	{ }
 };