From ef0c60fe083c290b947dd71c102d79fd276b74da Mon Sep 17 00:00:00 2001
From: xie xingguo <xie.xingguo@zte.com.cn>
Date: Tue, 26 Sep 2017 19:35:10 +0800
Subject: [PATCH] os/bluestore/BlueFS: check device id before using hint

As we might be allocating space from different devices (though
the chance is rare).

Signed-off-by: xie xingguo <xie.xingguo@zte.com.cn>
---
 src/os/bluestore/BlueFS.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/os/bluestore/BlueFS.cc b/src/os/bluestore/BlueFS.cc
index 0805f843ad3..9159e28812d 100644
--- a/src/os/bluestore/BlueFS.cc
+++ b/src/os/bluestore/BlueFS.cc
@@ -1828,7 +1828,7 @@ int BlueFS::_allocate(uint8_t id, uint64_t len,
   }
 
   uint64_t hint = 0;
-  if (!ev->empty()) {
+  if (!ev->empty() && ev->back().bdev == id) {
     hint = ev->back().end();
   }