> Or at least that's how I understood Tejun's last explanation of it. > It is possible that the drive firmware in some brands may not follow > spec for FLUSH_CACHE_EXT, but I don't know of a specific instance of this. For an ATA device it should be ok - the standard purposefully specified flush cache functions in a way that was intended to stop drives lying for benchmarketing reasons and the like. So you should always get proper behaviour on any drive which implements it providing barriers are enabled on the fs. -- To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
