From 2316bb3b428d583b88a03ad45b955d618bd320cd Mon Sep 17 00:00:00 2001
From: antirez <antirez@gmail.com>
Date: Fri, 15 Jan 2010 13:17:43 -0500
Subject: [PATCH] minor fix

---
 redis.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/redis.c b/redis.c
index fd912b494..343dce155 100644
--- a/redis.c
+++ b/redis.c
@@ -3011,7 +3011,12 @@ static int rdbSave(char *filename) {
     int j;
     time_t now = time(NULL);
 
-    waitEmptyIOJobsQueue(); /* Otherwise other threads may fseek() the swap */
+    /* Wait for I/O therads to terminate, just in case this is a
+     * foreground-saving, to avoid seeking the swap file descriptor at the
+     * same time. */
+    if (server.vm_enabled)
+        waitEmptyIOJobsQueue();
+
     snprintf(tmpfile,256,"temp-%d.rdb", (int) getpid());
     fp = fopen(tmpfile,"w");
     if (!fp) {
-- 
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