From 4469fdfc3aa3149228f15759d9ff6da55a64243b Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Sun, 25 Jul 2021 21:35:46 +0200
Subject: [PATCH 098/166] mm/memcontrol: Disable on PREEMPT_RT
559271146efc ("mm/memcg: optimize user context object stock access") is a
classic example of optimizing for the cpu local BKL serialization without a
clear protection scope.
Disable MEMCG on RT for now.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
init/Kconfig | 1 +
1 file changed, 1 insertion(+)
Index: linux-5.15.32-rt39/init/Kconfig
===================================================================
@ linux-5.15.32-rt39/init/Kconfig:946 @ config PAGE_COUNTER
config MEMCG
bool "Memory controller"
+ depends on !PREEMPT_RT
select PAGE_COUNTER
select EVENTFD
help