Merge branch 'tcmalloc_optimizations'

1 files changed, 7 insertions, 0 deletions

diff --git a/src/mds/CDentry.h b/src/mds/CDentry.h
index c065fcbffa9..ac7115c8553 100644
--- a/src/mds/CDentry.h
+++ b/src/mds/CDentry.h
@@ -50,6 +50,13 @@ bool operator<(const CDentry& l, const CDentry& r);
 
 // dentry
 class CDentry : public MDSCacheObject, public LRUObject {
+  /*
+   * This class uses a boost::pool to handle allocation. This is *not*
+   * thread-safe, so don't do allocations from multiple threads!
+   *
+   * Alternatively, switch the pool to use a boost::singleton_pool.
+   */
+
 private:
   static boost::pool<> pool;
 public: