libitm: Don't enforce privatization safety if already in serial mode.

	libitm/
	* beginend.cc (GTM::gtm_thread::trycommit): Don't enforce
	privatization safety if already in serial mode.

From-SVN: r182676

1 files changed, 6 insertions, 1 deletions

diff --git a/libitm/beginend.cc b/libitm/beginend.cc
index 17f9d7490d8..797548192eb 100644
--- a/libitm/beginend.cc
+++ b/libitm/beginend.cc
@@ -457,7 +457,12 @@ GTM::gtm_thread::trycommit ()
       // The transaction is now inactive. Everything that we still have to do
       // will not synchronize with other transactions anymore.
       if (state & gtm_thread::STATE_SERIAL)
-	gtm_thread::serial_lock.write_unlock ();
+        {
+          gtm_thread::serial_lock.write_unlock ();
+          // There are no other active transactions, so there's no need to
+          // enforce privatization safety.
+          priv_time = 0;
+        }
       else
 	gtm_thread::serial_lock.read_unlock (this);
       state = 0;