openwrt/target/linux/brcm2708/patches-4.19/950-0427-Revert-cgroup-Disable-cgroup-memory-by-default.patch

From 49b6bb41655247c123cdc46dd49276a107c8b1d2 Mon Sep 17 00:00:00 2001
From: P33M <p33m@github.com>
Date: Wed, 24 Apr 2019 14:25:09 +0100
Subject: [PATCH 427/806] Revert "cgroup: Disable cgroup "memory" by default"

This reverts commit cd6ce4d0ded13c94ff5208c679ed5e030263149b.
---
 kernel/cgroup/cgroup.c | 30 ------------------------------
 1 file changed, 30 deletions(-)

--- a/kernel/cgroup/cgroup.c
+++ b/kernel/cgroup/cgroup.c
@@ -5334,8 +5334,6 @@ int __init cgroup_init_early(void)
 }
 
 static u16 cgroup_disable_mask __initdata;
-static u16 cgroup_enable_mask __initdata;
-static int __init cgroup_disable(char *str);
 
 /**
  * cgroup_init - cgroup initialization
@@ -5376,12 +5374,6 @@ int __init cgroup_init(void)
 
 	mutex_unlock(&cgroup_mutex);
 
-	/* Apply an implicit disable... */
-	cgroup_disable("memory");
-
-	/* ...knowing that an explicit enable will override it. */
-	cgroup_disable_mask &= ~cgroup_enable_mask;
-
 	for_each_subsys(ss, ssid) {
 		if (ss->early_init) {
 			struct cgroup_subsys_state *css =
@@ -5773,28 +5765,6 @@ static int __init cgroup_disable(char *s
 }
 __setup("cgroup_disable=", cgroup_disable);
 
-static int __init cgroup_enable(char *str)
-{
-	struct cgroup_subsys *ss;
-	char *token;
-	int i;
-
-	while ((token = strsep(&str, ",")) != NULL) {
-		if (!*token)
-			continue;
-
-		for_each_subsys(ss, i) {
-			if (strcmp(token, ss->name) &&
-			    strcmp(token, ss->legacy_name))
-				continue;
-
-			cgroup_enable_mask |= 1 << i;
-		}
-	}
-	return 1;
-}
-__setup("cgroup_enable=", cgroup_enable);
-
 /**
  * css_tryget_online_from_dir - get corresponding css from a cgroup dentry
  * @dentry: directory dentry of interest