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author | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2015-05-05 13:05:54 +0200 |
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committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2015-05-19 12:00:47 +0200 |
commit | 900d337f960cb7cc53f5c93c29a503e5ced2c31f (patch) | |
tree | 1d1f49724e5cfcef1974d5dc4251486b0fddd2ef /cpukit/score/include/rtems/score/coremuteximpl.h | |
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/include/rtems/score/coremuteximpl.h')
-rw-r--r-- | cpukit/score/include/rtems/score/coremuteximpl.h | 6 |
1 files changed, 1 insertions, 5 deletions
diff --git a/cpukit/score/include/rtems/score/coremuteximpl.h b/cpukit/score/include/rtems/score/coremuteximpl.h index 54dadbe7e4..ca9d61df4a 100644 --- a/cpukit/score/include/rtems/score/coremuteximpl.h +++ b/cpukit/score/include/rtems/score/coremuteximpl.h @@ -491,11 +491,7 @@ RTEMS_INLINE_ROUTINE int _CORE_mutex_Seize_interrupt_trylock_body( cpu_self = _Thread_Dispatch_disable_critical(); _Thread_queue_Release( &the_mutex->Wait_queue, lock_context ); - _Thread_Change_priority( - executing, - ceiling, - false - ); + _Thread_Raise_priority( executing, ceiling ); _Thread_Dispatch_enable( cpu_self ); return 0; } |