librbd/cache/pwl/ssd: Remove useless locks.

Return a reference don't need by lock protect.

Signed-off-by: Jianpeng Ma <jianpeng.ma@intel.com>
(cherry picked from commit ca9eb28b4f249725e3ecae328fbf8076c648819a)

diff --git a/src/librbd/cache/pwl/ssd/LogEntry.cc b/src/librbd/cache/pwl/ssd/LogEntry.cc
index 02bc2bee6325d00b8040e2802212f178214327b8..71f77f55031795c1141783045d85f6bcc1e7901d 100644 (file)
--- a/src/librbd/cache/pwl/ssd/LogEntry.cc
+++ b/src/librbd/cache/pwl/ssd/LogEntry.cc
@@ -21,7 +21,6 @@ void WriteLogEntry::init_cache_bl(
 }
 
 buffer::list& WriteLogEntry::get_cache_bl() {
-  std::lock_guard locker(m_entry_bl_lock);
   return cache_bl;
 }