yocto-poky/meta/recipes-kernel/lttng/lttng-ust/lttng-ust-Fix-live-timer-calculation-error.patch

From 6d02a6c1aeb1d050ffe7c6624bab9acfa76fc05f Mon Sep 17 00:00:00 2001
From: Mikael Beckius <mikael.beckius@windriver.com>
Date: Tue, 12 May 2015 11:04:34 +0200
Subject: [PATCH] lttng-ust:Fix live timer calculation error

There is an calculation error for live timer. Variable chan->switch_timer_interval is
based on microsecond, and it is not right to assign chan->switch_timer_interval mod
1000000 to var tv_nsec which is based on nanosecond.

Upstream-Status: Pending

Signed-off-by: Mikael Beckius <mikael.beckius@windriver.com>
Signed-off-by: Jianchuan Wang <jianchuan.wang@windriver.com>
---
 libringbuffer/ring_buffer_frontend.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/libringbuffer/ring_buffer_frontend.c b/libringbuffer/ring_buffer_frontend.c
index eb4e486..e0377a3 100644
--- a/libringbuffer/ring_buffer_frontend.c
+++ b/libringbuffer/ring_buffer_frontend.c
@@ -528,7 +528,7 @@ void lib_ring_buffer_channel_switch_timer_start(struct channel *chan)
 	}
 
 	its.it_value.tv_sec = chan->switch_timer_interval / 1000000;
-	its.it_value.tv_nsec = chan->switch_timer_interval % 1000000;
+	its.it_value.tv_nsec = (chan->switch_timer_interval % 1000000) * 1000;
 	its.it_interval.tv_sec = its.it_value.tv_sec;
 	its.it_interval.tv_nsec = its.it_value.tv_nsec;
 
@@ -582,7 +582,7 @@ void lib_ring_buffer_channel_read_timer_start(struct channel *chan)
 	}
 
 	its.it_value.tv_sec = chan->read_timer_interval / 1000000;
-	its.it_value.tv_nsec = chan->read_timer_interval % 1000000;
+	its.it_value.tv_nsec = (chan->read_timer_interval % 1000000) * 1000;
 	its.it_interval.tv_sec = its.it_value.tv_sec;
 	its.it_interval.tv_nsec = its.it_value.tv_nsec;
 
-- 
1.9.1