From: Mingxin Liu <mingxin@xsky.com>
Date: Mon, 20 Feb 2017 06:36:02 +0000 (+0800)
Subject: mon/OSDMonitor: fix deviding by zero in OSDUtilizationDumper
X-Git-Tag: v12.0.1~258^2
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=9fe103233eaee965849c00c66c1b352f31932e01;p=ceph.git

mon/OSDMonitor: fix deviding by zero in OSDUtilizationDumper

Signed-off-by: Mingxin Liu <mingxin@xsky.com>
---

diff --git a/src/mon/OSDMonitor.cc b/src/mon/OSDMonitor.cc
index fae5b876d7b..45bf6db94c2 100644
--- a/src/mon/OSDMonitor.cc
+++ b/src/mon/OSDMonitor.cc
@@ -641,7 +641,9 @@ protected:
     int64_t kb = 0, kb_used = 0, kb_avail = 0;
     double util = 0;
     if (get_bucket_utilization(qi.id, &kb, &kb_used, &kb_avail))
-      util = 100.0 * (double)kb_used / (double)kb;
+      if (kb_used && kb)
+        util = 100.0 * (double)kb_used / (double)kb;
+
     double var = 1.0;
     if (average_util)
       var = util / average_util;