Module Name: src
Committed By: ad
Date: Sat Jan 25 18:30:41 UTC 2020
Modified Files:
src/lib/libpthread: pthread_mutex.c
Log Message:
Adjustment to previous: don't call _lwp_unpark_all() with nwaiters == 0.
To generate a diff of this commit:
cvs rdiff -u -r1.67 -r1.68 src/lib/libpthread/pthread_mutex.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/lib/libpthread/pthread_mutex.c
diff -u src/lib/libpthread/pthread_mutex.c:1.67 src/lib/libpthread/pthread_mutex.c:1.68
--- src/lib/libpthread/pthread_mutex.c:1.67 Sat Jan 25 17:58:28 2020
+++ src/lib/libpthread/pthread_mutex.c Sat Jan 25 18:30:41 2020
@@ -1,4 +1,4 @@
-/* $NetBSD: pthread_mutex.c,v 1.67 2020/01/25 17:58:28 ad Exp $ */
+/* $NetBSD: pthread_mutex.c,v 1.68 2020/01/25 18:30:41 ad Exp $ */
/*-
* Copyright (c) 2001, 2003, 2006, 2007, 2008 The NetBSD Foundation, Inc.
@@ -47,7 +47,7 @@
*/
#include <sys/cdefs.h>
-__RCSID("$NetBSD: pthread_mutex.c,v 1.67 2020/01/25 17:58:28 ad Exp $");
+__RCSID("$NetBSD: pthread_mutex.c,v 1.68 2020/01/25 18:30:41 ad Exp $");
#include <sys/types.h>
#include <sys/lwpctl.h>
@@ -529,7 +529,7 @@ pthread__mutex_unlock_slow(pthread_mutex
(void)_lwp_unpark(self->pt_waiters[0],
__UNVOLATILE(&ptm->ptm_waiters));
}
- } else {
+ } else if (self->pt_nwaiters > 0) {
(void)_lwp_unpark_all(self->pt_waiters, self->pt_nwaiters,
__UNVOLATILE(&ptm->ptm_waiters));
}
