From d300929ae920214e7409c61e9f309d4ef328a52b Mon Sep 17 00:00:00 2001
From: xiexingguo <xie.xingguo@zte.com.cn>
Date: Tue, 11 Oct 2016 22:14:22 +0800
Subject: [PATCH] os/bluestore: fix race conditon during blob spliting

Signed-off-by: xiexingguo <xie.xingguo@zte.com.cn>
---
 src/os/bluestore/BlueStore.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/os/bluestore/BlueStore.h b/src/os/bluestore/BlueStore.h
index 0bfc7d75a8f8a..95f190162db9a 100644
--- a/src/os/bluestore/BlueStore.h
+++ b/src/os/bluestore/BlueStore.h
@@ -437,6 +437,7 @@ public:
     }
 
     bool can_split() const {
+      std::lock_guard<std::recursive_mutex> l(shared_blob->bc.cache->lock);
       // splitting a BufferSpace writing list is too hard; don't try.
       return shared_blob->bc.writing.empty() && get_blob().can_split();
     }
-- 
2.39.5