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author | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2015-09-03 10:27:16 +0200 |
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committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2015-09-04 13:26:17 +0200 |
commit | dafa5d88435853809040761b79ab9d8f2217281b (patch) | |
tree | 35d9d87cbe8d00279cc3fa905792569937ed7fea /doc/user/sem.t | |
parent | score: Implement SMP-specific priority queue (diff) | |
download | rtems-dafa5d88435853809040761b79ab9d8f2217281b.tar.bz2 |
score: Implement priority boosting
Diffstat (limited to 'doc/user/sem.t')
-rw-r--r-- | doc/user/sem.t | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/doc/user/sem.t b/doc/user/sem.t index 6bd22dd3d7..210f1d0d92 100644 --- a/doc/user/sem.t +++ b/doc/user/sem.t @@ -115,6 +115,11 @@ for that resource. Each time a task blocks attempting to obtain the resource, the task holding the resource may have its priority increased. +On SMP configurations, in case the task holding the resource and the task that +blocks attempting to obtain the resource are in different scheduler instances, +the priority of the holder is raised to the pseudo-interrupt priority (priority +boosting). The pseudo-interrupt priority is the highest priority. + RTEMS supports priority inheritance for local, binary semaphores that use the priority task wait queue blocking discipline. When a task of higher priority than the task |