Author: davidxu
Date: Fri Sep 24 13:01:01 2010
New Revision: 213100
URL: http://svn.freebsd.org/changeset/base/213100
Log:
inline testcancel() into thr_cancel_leave(), because cancel_pending is
almost false, this makes a slight better branch predicting.
Modified:
head/lib/libthr/thread/thr_cancel.c
Modified: head/lib/libthr/thread/thr_cancel.c
==============================================================================
--- head/lib/libthr/thread/thr_cancel.c Fri Sep 24 10:40:17 2010
(r213099)
+++ head/lib/libthr/thread/thr_cancel.c Fri Sep 24 13:01:01 2010
(r213100)
@@ -158,6 +158,7 @@ void
_thr_cancel_leave(struct pthread *curthread, int maycancel)
{
curthread->cancel_point = 0;
- if (maycancel)
- testcancel(curthread);
+ if (__predict_false(SHOULD_CANCEL(curthread) &&
+ !THR_IN_CRITICAL(curthread) && maycancel))
+ _pthread_exit(PTHREAD_CANCELED);
}
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