[Qemu-devel] Re: [RFC][PATCH] make sure disk writes actually hit disk

[Rik van Riel]

Rik van Riel wrote:
> This is the simple approach to making sure that disk writes actually
> hit disk before we tell the guest OS that IO has completed.  Thanks
> to DMA_MULTI_THREAD the performance still seems to be adequate.

Hah, and of course that bit is only found in Xen's qemu-dm. Doh!

I knew I should have also checked some of the files my patch didn't
touch :)

--
"Debugging is twice as hard as writing the code in the first place.
Therefore, if you write the code as cleverly as possible, you are,
by definition, not smart enough to debug it." - Brian W. Kernighan