RTOS/rtems
1
0
Fork 0
forked from Imagelibrary/rtems
Code Pull Requests Activity

score: Minor _Thread_Dispatch() optimization

Browse Source 
It is not necessary to load the executing thread control again after
the context switch since it is an invariant of the executing thread.
This commit is contained in:
Sebastian Huber
2013-11-29 11:13:51 +01:00
parent 927a0a1f99
commit aaaedba981
1 changed files with 1 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
cpukit/score/src/threaddispatch.c
View File

@@ -156,12 +156,11 @@ void _Thread_Dispatch( void )
#endif
/*
* We have to obtain these values again after the context switch since the
* We have to obtain this value again after the context switch since the
* heir thread may have migrated from another processor. Values from the
* stack or non-volatile registers reflect the old execution environment.
*/
per_cpu = _Per_CPU_Get();
executing = per_cpu->executing;
#if !defined( RTEMS_SMP )
_ISR_Disable( level );