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| -rw-r--r-- | c-user/key_concepts.rst | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/c-user/key_concepts.rst b/c-user/key_concepts.rst index 2b0f6d5..c8f5e87 100644 --- a/c-user/key_concepts.rst +++ b/c-user/key_concepts.rst @@ -294,7 +294,10 @@ Priority Inheritance Protocol The priority of the mutex owner is raised to the highest priority of all threads that currently wait for ownership of this mutex :cite:`Sha:1990:PI`. Since RTEMS 5.1, priority updates due to the priority inheritance protocol -take place immediately and are propagated recursively. +take place immediately and are propagated recursively. This means the priority +inheritance is transitive since RTEMS 5.1. If a task A owning a priority +inheritance mutex blocks on another priority inheritance mutex, then the owner +of this mutex inherits the priority of the task A. .. index:: Multiprocessor Resource Sharing Protocol (MrsP) |