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author | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2019-04-11 13:47:50 +0200 |
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committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2019-04-12 09:44:44 +0200 |
commit | e97b7c9a7af2f4e19a8bdeaf13033617f8c4c2b6 (patch) | |
tree | 579598cfce50f24f2d7450e0c54f1eea6de0a023 /cpukit/score/src/threaddispatch.c | |
parent | score: Add _ISR_lock_Set_name() (diff) | |
download | rtems-e97b7c9a7af2f4e19a8bdeaf13033617f8c4c2b6.tar.bz2 |
score: Use an ISR lock for Per_CPU_Control::Lock
The use of a hand crafted lock for Per_CPU_Control::Lock was necessary
at some point in the SMP support development, but it is no longer
justified.
Diffstat (limited to 'cpukit/score/src/threaddispatch.c')
-rw-r--r-- | cpukit/score/src/threaddispatch.c | 17 |
1 files changed, 10 insertions, 7 deletions
diff --git a/cpukit/score/src/threaddispatch.c b/cpukit/score/src/threaddispatch.c index 55dc437eaf..65951cccfe 100644 --- a/cpukit/score/src/threaddispatch.c +++ b/cpukit/score/src/threaddispatch.c @@ -158,27 +158,30 @@ static ISR_Level _Thread_Preemption_intervention( ) { #if defined(RTEMS_SMP) + ISR_lock_Context lock_context; + level = _Thread_Check_pinning( executing, cpu_self, level ); - _Per_CPU_Acquire( cpu_self ); + _Per_CPU_Acquire( cpu_self, &lock_context ); while ( !_Chain_Is_empty( &cpu_self->Threads_in_need_for_help ) ) { - Chain_Node *node; - Thread_Control *the_thread; - ISR_lock_Context lock_context; + Chain_Node *node; + Thread_Control *the_thread; node = _Chain_Get_first_unprotected( &cpu_self->Threads_in_need_for_help ); _Chain_Set_off_chain( node ); the_thread = THREAD_OF_SCHEDULER_HELP_NODE( node ); - _Per_CPU_Release( cpu_self ); + _Per_CPU_Release( cpu_self, &lock_context ); + _Thread_State_acquire( the_thread, &lock_context ); _Thread_Ask_for_help( the_thread ); _Thread_State_release( the_thread, &lock_context ); - _Per_CPU_Acquire( cpu_self ); + + _Per_CPU_Acquire( cpu_self, &lock_context ); } - _Per_CPU_Release( cpu_self ); + _Per_CPU_Release( cpu_self, &lock_context ); #else (void) cpu_self; #endif |