From: xie xingguo <xie.xingguo@zte.com.cn>
Date: Sat, 10 Sep 2016 02:05:32 +0000 (+0800)
Subject: os/bluestore: fix race condition
X-Git-Tag: v11.0.1~261^2~1
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=1ab12fa8f5f23da298a9486b38dc078247d94c67;p=ceph.git

os/bluestore: fix race condition

The empty() method also needs to be called under the protection of lock.

Signed-off-by: xie xingguo <xie.xingguo@zte.com.cn>
---

diff --git a/src/os/bluestore/BlueStore.h b/src/os/bluestore/BlueStore.h
index 16dad8409f88..7ef031bea4d4 100644
--- a/src/os/bluestore/BlueStore.h
+++ b/src/os/bluestore/BlueStore.h
@@ -378,6 +378,7 @@ public:
     }
 
     bool empty() {
+      std::lock_guard<std::mutex> l(lock);
       return uset.empty();
     }
   };