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authorSebastian Huber <sebastian.huber@embedded-brains.de>2016-05-27 15:41:41 +0200
committerSebastian Huber <sebastian.huber@embedded-brains.de>2016-05-30 16:16:23 +0200
commit33e250c9fa370f620ddbc5850342d5a90b123524 (patch)
treea2f4082a58231054f084e9a77aa0af4e3111662d /cpukit/score/src/coremutexseize.c
parentscore: Add CORE mutex variants (diff)
downloadrtems-33e250c9fa370f620ddbc5850342d5a90b123524.tar.bz2
score: Rework CORE priority ceiling mutex
Rework seize and surrender methods to use CORE_ceiling_mutex_Control. This eliminates CORE_mutex_Disciplines.
Diffstat (limited to 'cpukit/score/src/coremutexseize.c')
-rw-r--r--cpukit/score/src/coremutexseize.c33
1 files changed, 15 insertions, 18 deletions
diff --git a/cpukit/score/src/coremutexseize.c b/cpukit/score/src/coremutexseize.c
index 596378fda6..ed5eb0aeec 100644
--- a/cpukit/score/src/coremutexseize.c
+++ b/cpukit/score/src/coremutexseize.c
@@ -29,6 +29,8 @@ Status_Control _CORE_mutex_Seize_interrupt_blocking(
Thread_queue_Context *queue_context
)
{
+ Thread_Control *holder;
+
#if !defined(RTEMS_SMP)
/*
* We must disable thread dispatching here since we enable the interrupts for
@@ -37,32 +39,27 @@ Status_Control _CORE_mutex_Seize_interrupt_blocking(
_Thread_Dispatch_disable();
#endif
- if ( _CORE_mutex_Is_inherit_priority( &the_mutex->Attributes ) ) {
- Thread_Control *holder = the_mutex->holder;
+ holder = the_mutex->holder;
#if !defined(RTEMS_SMP)
- /*
- * To enable interrupts here works only since exactly one executing thread
- * exists and only threads are allowed to seize and surrender mutexes with
- * the priority inheritance protocol. On SMP configurations more than one
- * executing thread may exist, so here we must not release the lock, since
- * otherwise the current holder may be no longer the holder of the mutex
- * once we released the lock.
- */
- _CORE_mutex_Release( the_mutex, queue_context );
+ /*
+ * To enable interrupts here works only since exactly one executing thread
+ * exists and only threads are allowed to seize and surrender mutexes with
+ * the priority inheritance protocol. On SMP configurations more than one
+ * executing thread may exist, so here we must not release the lock, since
+ * otherwise the current holder may be no longer the holder of the mutex
+ * once we released the lock.
+ */
+ _CORE_mutex_Release( the_mutex, queue_context );
#endif
- _Thread_Inherit_priority( holder, executing );
-
-#if !defined(RTEMS_SMP)
- _ISR_lock_ISR_disable( &queue_context->Lock_context );
- _CORE_mutex_Acquire_critical( the_mutex, queue_context );
-#endif
- }
+ _Thread_Inherit_priority( holder, executing );
#if defined(RTEMS_SMP)
_Thread_queue_Context_set_expected_level( queue_context, 1 );
#else
+ _ISR_lock_ISR_disable( &queue_context->Lock_context );
+ _CORE_mutex_Acquire_critical( the_mutex, queue_context );
_Thread_queue_Context_set_expected_level( queue_context, 2 );
#endif