bluestore/BlueFS: pass string as const ref

Signed-off-by: dingdangzhang <boqian.zy@alibaba-inc.com>

diff --git a/src/os/bluestore/BlueFS.cc b/src/os/bluestore/BlueFS.cc
index 36f0b3cb0498701585c6eddf1b71eccb6a49d21d..ed94e60067c230e90cd5a661fd2cbfc6032dffa9 100644 (file)
--- a/src/os/bluestore/BlueFS.cc
+++ b/src/os/bluestore/BlueFS.cc
@@ -129,7 +129,7 @@ void BlueFS::_update_logger_stats()
   }
 }
 
-int BlueFS::add_block_device(unsigned id, string path)
+int BlueFS::add_block_device(unsigned id, const string& path)
 {
   dout(10) << __func__ << " bdev " << id << " path " << path << dendl;
   assert(id < bdev.size());

diff --git a/src/os/bluestore/BlueFS.h b/src/os/bluestore/BlueFS.h
index 7229355a10dfe561d06d5985996974700a4ab186..bb14ffc3697d035347d9b502aa8e93266b7441b6 100644 (file)
--- a/src/os/bluestore/BlueFS.h
+++ b/src/os/bluestore/BlueFS.h
@@ -384,7 +384,7 @@ public:
   /// sync any uncommitted state to disk
   void sync_metadata();
 
-  int add_block_device(unsigned bdev, string path);
+  int add_block_device(unsigned bdev, const string& path);
   bool bdev_support_label(unsigned id);
   uint64_t get_block_device_size(unsigned bdev);