free memory if the maxmemory parameter is reduced via CONFIG SET

diff --git a/src/config.c b/src/config.c
index 8a5ad6c2bc8cd6d0671b2194dad057d23ae7ac7f..1bd678c783050927f662f99e1a78df9ede38d771 100644 (file)
--- 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 (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;
     } else if (!strcasecmp(c->argv[2]->ptr,"timeout")) {
         if (getLongLongFromObject(o,&ll) == REDIS_ERR ||
             ll < 0 || ll > LONG_MAX) goto badfmt;