From: Andrew Morton <akpm@linux-foundation.org>
Subject: kfence-enable-check-kfence-canary-on-panic-via-boot-param-fix

add __read_mostly, per Marco

Cc: Alexander Potapenko <glider@google.com>
Cc: chenzefeng <chenzefeng2@huawei.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: huangshaobo <huangshaobo6@huawei.com>
Cc: Jubin Zhong <zhongjubin@huawei.com>
Cc: Marco Elver <elver@google.com>
Cc: Wangbing <wangbing6@huawei.com>
Cc: Xiaoming Ni <nixiaoming@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 mm/kfence/core.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/mm/kfence/core.c~kfence-enable-check-kfence-canary-on-panic-via-boot-param-fix
+++ a/mm/kfence/core.c
@@ -102,7 +102,7 @@ static bool kfence_deferrable __read_mos
 module_param_named(deferrable, kfence_deferrable, bool, 0444);
 
 /* If true, check all canary bytes on panic. */
-static bool kfence_check_on_panic;
+static bool kfence_check_on_panic __read_mostly;
 module_param_named(check_on_panic, kfence_check_on_panic, bool, 0444);
 
 /* The pool of pages used for guard pages and objects. */
_