From: Jens Axboe <axboe@kernel.dk>
Date: Wed, 15 Feb 2012 08:56:51 +0000 (+0100)
Subject: mutex: set and use the proper clock source
X-Git-Tag: fio-2.0.4~34
X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=ceab2ea2745270254c01ca2bd0195144bd79e607;p=fio.git

mutex: set and use the proper clock source

Signed-off-by: Jens Axboe <axboe@kernel.dk>
---

diff --git a/mutex.c b/mutex.c
index 3a01f98f..6b4c9fe1 100644
--- a/mutex.c
+++ b/mutex.c
@@ -58,6 +58,11 @@ struct fio_mutex *fio_mutex_init(int value)
 	pthread_condattr_setpshared(&cond, PTHREAD_PROCESS_SHARED);
 #endif
 	pthread_cond_init(&mutex->cond, &cond);
+#ifdef FIO_HAVE_CLOCK_MONOTONIC
+	pthread_condattr_setclock(&cond, CLOCK_MONOTONIC);
+#else
+	pthread_condattr_setclock(&cond, CLOCK_REALTIME);
+#endif
 
 	ret = pthread_mutex_init(&mutex->lock, &attr);
 	if (ret) {
@@ -81,7 +86,11 @@ int fio_mutex_down_timeout(struct fio_mutex *mutex, unsigned int seconds)
 	struct timespec t;
 	int ret = 0;
 
+#ifdef FIO_HAVE_CLOCK_MONOTONIC
+	clock_gettime(CLOCK_MONOTONIC, &t);
+#else
 	clock_gettime(CLOCK_REALTIME, &t);
+#endif
 	t.tv_sec += seconds;
 
 	pthread_mutex_lock(&mutex->lock);