On Thu, Dec 11, 2008 at 10:32:13PM +0100, Christoph Hellwig wrote: > Mainline kernel aio only implements O_DIRECT. Some RHEL version had > support for buffered kernel AIO.
Not just RHEL, I'm sure SLES supported this too and it was quite cleanly implemented, not sure why this wasn't picked up by mainline. At the light of this preadv/pwritev or having the file opened by each thread (if proven safe with nfs) remains the only option. Zerocopy dma must be supported without O_DIRECT too even if it's probably more important when O_DIRECT is on. -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
