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| author | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2015-05-05 13:05:54 +0200 |
|---|---|---|
| committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2015-05-19 12:00:47 +0200 |
| commit | 900d337f960cb7cc53f5c93c29a503e5ced2c31f (patch) | |
| tree | 1d1f49724e5cfcef1974d5dc4251486b0fddd2ef /cpukit/score/src/schedulercbs.c | |
| parent | score: Fine grained locking for mutexes (diff) | |
| download | rtems-900d337f960cb7cc53f5c93c29a503e5ced2c31f.tar.bz2 | |
score: Rework _Thread_Change_priority()
Move the writes to Thread_Control::current_priority and
Thread_Control::real_priority into _Thread_Change_priority() under the
protection of the thread lock. Add a filter function to
_Thread_Change_priority() to enable specialized variants.
Avoid race conditions during a thread priority restore with the new
Thread_Control::priority_restore_hint for an important average case
optimizations used by priority inheritance mutexes.
Update #2273.
Diffstat (limited to 'cpukit/score/src/schedulercbs.c')
| -rw-r--r-- | cpukit/score/src/schedulercbs.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/cpukit/score/src/schedulercbs.c b/cpukit/score/src/schedulercbs.c index 44221cdbdf..98ec0eb29e 100644 --- a/cpukit/score/src/schedulercbs.c +++ b/cpukit/score/src/schedulercbs.c @@ -27,15 +27,13 @@ void _Scheduler_CBS_Budget_callout( ) { Priority_Control new_priority; + Priority_Control unused; Scheduler_CBS_Node *node; Scheduler_CBS_Server_id server_id; /* Put violating task to background until the end of period. */ new_priority = the_thread->Start.initial_priority; - if ( the_thread->real_priority != new_priority ) - the_thread->real_priority = new_priority; - if ( the_thread->current_priority != new_priority ) - _Thread_Change_priority(the_thread, new_priority, true); + _Thread_Set_priority( the_thread, new_priority, &unused, true ); /* Invoke callback function if any. */ node = _Scheduler_CBS_Thread_get_node( the_thread ); |