On 10/16/2012 10:03 PM, Anthony Liguori wrote: >> >> This forces userspace to dedicate a thread for the HPT. > > If no changes are available, does read return a size > 0? I don't think > it's necessary to support polling. The kernel should always be able to > respond to userspace here. The only catch is whether to return !0 read > sizes when there are no changes. > > At any case, I can't see why a dedicated thread is needed. QEMU is > going to poll HPT based on how fast we can send data over the wire.
That means spinning if we can send the data faster than we dirty it. But we do that anyway for memory. -- error compiling committee.c: too many arguments to function -- To unsubscribe from this list: send the line "unsubscribe kvm-ppc" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
