Update git submodules
* Update oslo.concurrency from branch 'master' to a9ccf0a64deb63e7ea07d232437da797462d8f4b - Add support for non-blocking locks This adds support for a non-blocking behavior of the lock : the context-based lock now raises an AcquireLockFailedException if the lock can't be acquired on the first try. At a higher layer, we just caught this exception inside the 'synchronized' decorator to prevent calling the wrapped function. In which case, we then trace this acquisition failure. For now at least, disabling blocking is not supported when using fair locks because the ReaderWriterLock.write_lock() provided by the fasteners module doesn't implements this behavior. Change-Id: I409da79007c9ba4fb8585da881e3d56998b0b98b
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Subproject commit 8e08400864f32649536c692b4c86c336c01f4153
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Subproject commit a9ccf0a64deb63e7ea07d232437da797462d8f4b
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