From 841bc5f88550a0e71931a280244f5a0c6fe1138f Mon Sep 17 00:00:00 2001
From: Sage Weil <sage@newdream.net>
Date: Tue, 4 Aug 2009 12:52:43 -0700
Subject: [PATCH] osdmap: only use domains if ndom > 1

---
 src/osd/OSDMap.cc | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/osd/OSDMap.cc b/src/osd/OSDMap.cc
index ad1b6a421afd9..d3a7377764d0b 100644
--- a/src/osd/OSDMap.cc
+++ b/src/osd/OSDMap.cc
@@ -141,7 +141,8 @@ void OSDMap::build_simple_crush_map(CrushWrapper& crush, map<int, const char*>&
   int ndom = num_dom;
   if (!ndom)
     ndom = MAX(g_conf.osd_max_rep, g_conf.osd_max_raid_width);
-  if (num_osd >= ndom*3 &&
+  if (ndom > 1 &&
+      num_osd >= ndom*3 &&
       num_osd > 8) {
     int ritems[ndom];
     int rweights[ndom];
-- 
2.39.5