diff options
Diffstat (limited to 'cpukit/score/src/threadchangepriority.c')
| -rw-r--r-- | cpukit/score/src/threadchangepriority.c | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/cpukit/score/src/threadchangepriority.c b/cpukit/score/src/threadchangepriority.c index b4437313a7..b3d79844c2 100644 --- a/cpukit/score/src/threadchangepriority.c +++ b/cpukit/score/src/threadchangepriority.c @@ -62,6 +62,15 @@ void _Thread_Change_priority( /* Only clear the transient state if it wasn't set already */ if ( ! _States_Is_transient( original_state ) ) the_thread->current_state = _States_Clear( STATES_TRANSIENT, state ); + + /* + * The thread may have new blocking states added by interrupt service + * routines after the change into the transient state. This will not + * result in a _Scheduler_Block() operation. Make sure we select an heir + * now. + */ + _Scheduler_Schedule( the_thread ); + _ISR_Enable( level ); if ( _States_Is_waiting_on_thread_queue( state ) ) { _Thread_queue_Requeue( the_thread->Wait.queue, the_thread ); @@ -91,10 +100,7 @@ void _Thread_Change_priority( * We altered the set of thread priorities. So let's figure out * who is the heir and if we need to switch to them. */ - _Scheduler_Schedule(); + _Scheduler_Schedule( the_thread ); - if ( !_Thread_Is_executing_also_the_heir() && - _Thread_Executing->is_preemptible ) - _Thread_Dispatch_necessary = true; _ISR_Enable( level ); } |