[rtems commit] libcsupport: Avoid Giant lock in _times()

[Sebastian Huber]

Module:    rtems
Branch:    master
Commit:    5f7f469a96bf8ffeab37f782062d13344e375b4a
Changeset: http://git.rtems.org/rtems/commit/?id=5f7f469a96bf8ffeab37f782062d13344e375b4a

Author:    Sebastian Huber <sebastian.huber at embedded-brains.de>
Date:      Mon May  4 09:22:26 2015 +0200

libcsupport: Avoid Giant lock in _times()

---

 cpukit/libcsupport/src/__times.c | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/cpukit/libcsupport/src/__times.c b/cpukit/libcsupport/src/__times.c
index 5a1f9eb..895ee6b 100644
--- a/cpukit/libcsupport/src/__times.c
+++ b/cpukit/libcsupport/src/__times.c
@@ -66,9 +66,10 @@ clock_t _times(
 
   #ifndef __RTEMS_USE_TICKS_FOR_STATISTICS__
     {
-      Timestamp_Control per_tick;
-      uint32_t          ticks_of_executing;
-      uint32_t          fractional_ticks;
+      Timestamp_Control  per_tick;
+      uint32_t           ticks_of_executing;
+      uint32_t           fractional_ticks;
+      Per_CPU_Control   *cpu_self;
 
       _Timestamp_Set(
         &per_tick,
@@ -78,7 +79,7 @@ clock_t _times(
             TOD_NANOSECONDS_PER_SECOND)
       );
 
-      _Thread_Disable_dispatch();
+      cpu_self = _Thread_Dispatch_disable();
       executing = _Thread_Executing;
       _Thread_Update_cpu_time_used(
         executing,
@@ -90,7 +91,7 @@ clock_t _times(
         &ticks_of_executing,
         &fractional_ticks
       );
-      _Thread_Enable_dispatch();
+      _Thread_Dispatch_enable( cpu_self );
       ptms->tms_utime = ticks_of_executing * us_per_tick;
     }
   #else