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score: Minor _Thread_Dispatch() optimization

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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
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3
cpukit/score/src/threaddispatch.c
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@@ -156,12 +156,11 @@ void _Thread_Dispatch( void )
#endif #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 * heir thread may have migrated from another processor. Values from the
* stack or non-volatile registers reflect the old execution environment. * stack or non-volatile registers reflect the old execution environment.
*/ */
per_cpu = _Per_CPU_Get(); per_cpu = _Per_CPU_Get();
executing = per_cpu->executing;
#if !defined( RTEMS_SMP ) #if !defined( RTEMS_SMP )
_ISR_Disable( level ); _ISR_Disable( level );