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IOBlockStorageDriver::synchronizeCache

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IOBlockStorageDriver::synchronizeCache

Subject: IOBlockStorageDriver::synchronizeCache
From: Niklas Hoglund <email@hidden>
Date: Fri, 06 Aug 2010 16:42:15 +0100

 Hello!

We need to ensure ordering between writes, to make sure one write is not started until another has completed, to avoid potential data corruption in the case of power losses or crashes.

In a driver that inherits from IOBlockStorageDriver, can I be sure that any data that has been written to that device has reached the disk surface by calling synchronizeCache, or could drive buffers, NCQ or similar interfere with that.

--
Niklas

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