* io.c (rb_io_wait_writable): don't call rb_thread_fd_writable()

when EINTR. EINTR mean signal interrupt was happen. We don't
  need any wait.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@38396 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,9 @@
+Sat Dec 15 11:54:50 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* io.c (rb_io_wait_writable): don't call rb_thread_fd_writable()
+	  when EINTR. EINTR mean signal interrupt was happen. We don't
+	  need any wait.
+
 Sat Dec 15 11:53:36 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
 
 	* thread.c (rb_thread_wait_fd_rw): remove silly rb_thread_alone()

io.c

@@ -1023,7 +1023,6 @@ rb_io_wait_writable(int f)
 #if defined(ERESTART)
       case ERESTART:
 #endif
-	rb_thread_fd_writable(f);
 	return TRUE;
 
       case EAGAIN: