openwrt/target/linux/bcm27xx/patches-6.6/950-1445-fixup-cgroup-Use-kernel-command-line-to-disable-memo.patch

From 166dfc4399643681f2e4277bf7b7407e926861e5 Mon Sep 17 00:00:00 2001
From: Phil Elwell <phil@raspberrypi.com>
Date: Mon, 9 Dec 2024 14:58:16 +0000
Subject: [PATCH] fixup! cgroup: Use kernel command line to disable memory
 cgroup

cgroup features are distinct from cgroup subsystems - handle them
correctly.

Signed-off-by: Phil Elwell <phil@raspberrypi.com>
---
 kernel/cgroup/cgroup.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

--- a/kernel/cgroup/cgroup.c
+++ b/kernel/cgroup/cgroup.c
@@ -6769,11 +6769,19 @@ static int __init cgroup_enable(char *st
 			    strcmp(token, ss->legacy_name))
 				continue;
 
-			cgroup_feature_disable_mask &= ~(1 << i);
 			static_branch_enable(cgroup_subsys_enabled_key[i]);
 			pr_info("Enabling %s control group subsystem\n",
 				ss->name);
 		}
+
+		for (i = 0; i < OPT_FEATURE_COUNT; i++) {
+			if (strcmp(token, cgroup_opt_feature_names[i]))
+				continue;
+			cgroup_feature_disable_mask &= ~(1 << i);
+			pr_info("Enabling %s control group feature\n",
+				cgroup_opt_feature_names[i]);
+			break;
+		}
 	}
 	return 1;
 }