From b7651ee96fc7c0b88c5de4d0cc365d5472d8c990 Mon Sep 17 00:00:00 2001
From: Christof Schulze <christof.schulze@gmx.net>
Date: Fri, 24 Feb 2017 19:43:32 +0100
Subject: [PATCH] gluon-core: limit fq_codel memory to 1MB per AP with less
 than 48MB RAM (#1046)

---
 .../etc/hotplug.d/ieee80211/01-gluon-core-codel-memusage  | 8 ++++++++
 1 file changed, 8 insertions(+)
 create mode 100755 package/gluon-core/files/etc/hotplug.d/ieee80211/01-gluon-core-codel-memusage

diff --git a/package/gluon-core/files/etc/hotplug.d/ieee80211/01-gluon-core-codel-memusage b/package/gluon-core/files/etc/hotplug.d/ieee80211/01-gluon-core-codel-memusage
new file mode 100755
index 00000000..cf0f1740
--- /dev/null
+++ b/package/gluon-core/files/etc/hotplug.d/ieee80211/01-gluon-core-codel-memusage
@@ -0,0 +1,8 @@
+#!/bin/sh
+if [ "${ACTION}" = "add" ]; then
+
+	RAM=$(awk '/MemTotal/ {print $2}' /proc/meminfo)
+	if [ "$RAM" -lt $((48*1024)) ]; then
+		echo "fq_memory_limit 1048576" > "/sys/kernel/debug/ieee80211/$DEVICENAME/aqm"
+	fi
+fi