From 82fc1da141f00fb584d2c7c3e176a8f35f99f504 Mon Sep 17 00:00:00 2001
From: Sage Weil <sage@redhat.com>
Date: Tue, 13 Jun 2017 12:11:27 -0400
Subject: [PATCH] os/bluestore: clean up cache_data_ratio in _set_cache_sizes

Signed-off-by: Sage Weil <sage@redhat.com>
---
 src/os/bluestore/BlueStore.cc | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/os/bluestore/BlueStore.cc b/src/os/bluestore/BlueStore.cc
index 756351da78e..988d8c24ec1 100644
--- a/src/os/bluestore/BlueStore.cc
+++ b/src/os/bluestore/BlueStore.cc
@@ -3565,6 +3565,10 @@ int BlueStore::_set_cache_sizes()
 	 << dendl;
     return -EINVAL;
   }
+  if (cache_data_ratio < 0) {
+    // deal with floating point imprecision
+    cache_data_ratio = 0;
+  }
   dout(1) << __func__ << " meta " << cache_meta_ratio
 	  << " kv " << cache_kv_ratio
 	  << " data " << cache_data_ratio
-- 
2.47.3