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author | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2021-03-25 09:11:26 +0100 |
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committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2021-09-01 20:24:57 +0200 |
commit | 9c0591f12d450401746bc0bf7cd7a0e0b14a5f3b (patch) | |
tree | 02640af241b723d162024131701a0b518c961bf8 /cpukit/score/src/semaphore.c | |
parent | score: Document Futex Handler (diff) | |
download | rtems-9c0591f12d450401746bc0bf7cd7a0e0b14a5f3b.tar.bz2 |
score: Fix priority discipline handling
The priority queues in clustered scheduling configurations use a per
scheduler priority queue rotation to ensure FIFO fairness across
schedulers. This mechanism is implemented in the thread queue surrender
operation. Unfortunately some semaphore and message queue directives
used wrongly the thread queue extract operation. Fix this through the
use of _Thread_queue_Surrender().
Update #4358.
Diffstat (limited to 'cpukit/score/src/semaphore.c')
-rw-r--r-- | cpukit/score/src/semaphore.c | 28 |
1 files changed, 8 insertions, 20 deletions
diff --git a/cpukit/score/src/semaphore.c b/cpukit/score/src/semaphore.c index db3c3a91eb..7743939973 100644 --- a/cpukit/score/src/semaphore.c +++ b/cpukit/score/src/semaphore.c @@ -159,18 +159,12 @@ void _Semaphore_Post( struct _Semaphore_Control *_sem ) ++sem->count; _Sem_Queue_release( sem, level, &queue_context ); } else { - const Thread_queue_Operations *operations; - Thread_Control *first; - _Thread_queue_Context_set_ISR_level( &queue_context, level ); - operations = SEMAPHORE_TQ_OPERATIONS; - first = ( *operations->first )( heads ); - - _Thread_queue_Extract_critical( + _Thread_queue_Surrender_no_priority( &sem->Queue.Queue, - operations, - first, - &queue_context + heads, + &queue_context, + SEMAPHORE_TQ_OPERATIONS ); } } @@ -192,18 +186,12 @@ void _Semaphore_Post_binary( struct _Semaphore_Control *_sem ) sem->count = 1; _Sem_Queue_release( sem, level, &queue_context ); } else { - const Thread_queue_Operations *operations; - Thread_Control *first; - _Thread_queue_Context_set_ISR_level( &queue_context, level ); - operations = SEMAPHORE_TQ_OPERATIONS; - first = ( *operations->first )( heads ); - - _Thread_queue_Extract_critical( + _Thread_queue_Surrender_no_priority( &sem->Queue.Queue, - operations, - first, - &queue_context + heads, + &queue_context, + SEMAPHORE_TQ_OPERATIONS ); } } |