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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/posix/src/pthreadsetschedparam.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/posix/src/pthreadsetschedparam.c')
| -rw-r--r-- | cpukit/posix/src/pthreadsetschedparam.c | 13 |
1 files changed, 6 insertions, 7 deletions
diff --git a/cpukit/posix/src/pthreadsetschedparam.c b/cpukit/posix/src/pthreadsetschedparam.c index dcb70bdec8..067e6ba509 100644 --- a/cpukit/posix/src/pthreadsetschedparam.c +++ b/cpukit/posix/src/pthreadsetschedparam.c @@ -44,6 +44,7 @@ int pthread_setschedparam( Thread_CPU_budget_algorithm_callout budget_callout; Objects_Locations location; int rc; + Priority_Control unused; /* * Check all the parameters @@ -87,13 +88,11 @@ int pthread_setschedparam( the_thread->cpu_time_budget = rtems_configuration_get_ticks_per_timeslice(); - the_thread->real_priority = - _POSIX_Priority_To_core( api->schedparam.sched_priority ); - - _Thread_Change_priority( - the_thread, - the_thread->real_priority, - true + _Thread_Set_priority( + the_thread, + _POSIX_Priority_To_core( api->schedparam.sched_priority ), + &unused, + true ); break; |