>>>>> "Sagi" == Sagi Grimberg <sagig@xxxxxxxxxxxxxxxxxx> writes: >> The idea that was floated aroud a few times was to have a flag where >> the first half of the vectors would be the data, and the second half >> the metadata. Sagi> This means that the user would need to pass iovec entries of 8 Sagi> bytes correct? Seems like a waste for large IOs (sorry for Sagi> diverging from the subject) The assumption was that there would be a 1:1 mapping between the number of data buffers and the metadata ditto. But nothing says that a data iovec entry is limited in size to a single sector. The other option to have a single iovec at the end representing the metadata for all data buffers. I think there are valid use cases for either approach and we may end up having to support both via a flag. -- Martin K. Petersen Oracle Linux Engineering -- To unsubscribe from this list: send the line "unsubscribe linux-block" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html