while loading the rdb file don't add the key to the dictionary at all if it's...

while loading the rdb file don't add the key to the dictionary at all if it's already expired, instead of removing it just after the insertion.

redis.c

@@ -3999,6 +3999,12 @@ static int rdbLoad(char *filename) {
         if ((key = rdbLoadStringObject(fp)) == NULL) goto eoferr;
         /* Read value */
         if ((val = rdbLoadObject(type,fp)) == NULL) goto eoferr;
+        /* Check if the key already expired */
+        if (expiretime != -1 && expiretime < now) {
+            decrRefCount(key);
+            decrRefCount(val);
+            continue;
+        }
         /* Add the new object in the hash table */
         retval = dictAdd(d,key,val);
         if (retval == DICT_ERR) {
@@ -4007,14 +4013,7 @@ static int rdbLoad(char *filename) {
         }
         loadedkeys++;
         /* Set the expire time if needed */
-        if (expiretime != -1) {
-            setExpire(db,key,expiretime);
-            /* Delete this key if already expired */
-            if (expiretime < now) {
-                deleteKey(db,key);
-                continue; /* don't try to swap this out */
-            }
-        }
+        if (expiretime != -1) setExpire(db,key,expiretime);
 
         /* Handle swapping while loading big datasets when VM is on */