From: Patrick Donnelly <pdonnell@redhat.com>
Date: Tue, 18 Apr 2017 02:28:13 +0000 (-0400)
Subject: common/DecayCounter: add delta to value for ::get
X-Git-Tag: v12.0.3~38^2~28
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=b2f53b85c3174c82a3a7487dd56ab0ce16af6f82;p=ceph.git

common/DecayCounter: add delta to value for ::get

This resolves a bug where getting the DecayCounter value before one second has
elapsed will result in 0 always being returned. This is because ::hit will add
to the delta, not the value. The delta is added to the value only in the decay
function which only processes changes after 1 second has elapsed since the last
decay.

Signed-off-by: Patrick Donnelly <pdonnell@redhat.com>
---

diff --git a/src/common/DecayCounter.h b/src/common/DecayCounter.h
index 4d735fd99daa..357b0970ffaa 100644
--- a/src/common/DecayCounter.h
+++ b/src/common/DecayCounter.h
@@ -73,7 +73,7 @@ public:
 
   double get(utime_t now, const DecayRate& rate) {
     decay(now, rate);
-    return val;
+    return val+delta;
   }
 
   double get_last() {