From b4f2e412d087bae0a523fe6ea40fcad30fe74b5b Mon Sep 17 00:00:00 2001
From: antirez <antirez@gmail.com>
Date: Mon, 11 Oct 2010 16:46:21 +0200
Subject: [PATCH] free memory if the maxmemory parameter is reduced via CONFIG
 SET

---
 src/config.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/config.c b/src/config.c
index 8a5ad6c2..1bd678c7 100644
--- a/src/config.c
+++ b/src/config.c
@@ -241,6 +241,7 @@ void configSetCommand(redisClient *c) {
         if (getLongLongFromObject(o,&ll) == REDIS_ERR ||
             ll < 0) goto badfmt;
         server.maxmemory = ll;
+        if (server.maxmemory) freeMemoryIfNeeded();
     } else if (!strcasecmp(c->argv[2]->ptr,"timeout")) {
         if (getLongLongFromObject(o,&ll) == REDIS_ERR ||
             ll < 0 || ll > LONG_MAX) goto badfmt;