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author | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2016-11-24 06:13:11 +0100 |
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committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2016-11-24 08:46:20 +0100 |
commit | 620b23ece54a0bb43189bb9c0f14adf447cbafe6 (patch) | |
tree | 10aa72eb67ac01ab85f932ac25c09ba3e5d97da8 /cpukit/score/src/corerwlockobtainread.c | |
parent | score: Fix interrupt profiling (diff) | |
download | rtems-620b23ece54a0bb43189bb9c0f14adf447cbafe6.tar.bz2 |
score: Optimize _Thread_queue_Enqueue()
Move thread state for _Thread_queue_Enqueue() to the thread queue
context. This reduces the parameter count of _Thread_queue_Enqueue()
from five to four (ARM for example has only four function parameter
registers). Since the thread state is used after several function calls
inside _Thread_queue_Enqueue() this parameter was saved on the stack
previously.
Diffstat (limited to 'cpukit/score/src/corerwlockobtainread.c')
-rw-r--r-- | cpukit/score/src/corerwlockobtainread.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/cpukit/score/src/corerwlockobtainread.c b/cpukit/score/src/corerwlockobtainread.c index 001d259265..641945635f 100644 --- a/cpukit/score/src/corerwlockobtainread.c +++ b/cpukit/score/src/corerwlockobtainread.c @@ -78,12 +78,15 @@ Status_Control _CORE_RWLock_Seize_for_reading( executing->Wait.option = CORE_RWLOCK_THREAD_WAITING_FOR_READ; + _Thread_queue_Context_set_thread_state( + queue_context, + STATES_WAITING_FOR_RWLOCK + ); _Thread_queue_Context_set_do_nothing_enqueue_callout( queue_context ); _Thread_queue_Enqueue( &the_rwlock->Wait_queue.Queue, CORE_RWLOCK_TQ_OPERATIONS, executing, - STATES_WAITING_FOR_RWLOCK, queue_context ); return _Thread_Wait_get_status( executing ); |