On Thu, Jul 28, 2011 at 2:10 PM, Kevin Wolf <kw...@redhat.com> wrote: > Am 28.07.2011 14:54, schrieb Stefan Hajnoczi: >> On Thu, Jul 28, 2011 at 1:35 PM, Kevin Wolf <kw...@redhat.com> wrote: >>> Am 28.07.2011 14:09, schrieb Christoph Hellwig: >>>> On Wed, Jul 27, 2011 at 01:37:31PM +0100, Stefan Hajnoczi wrote: >>>>> Coroutines in the block layer [Kevin] >>>>> * Programming model to simplify block drivers without blocking QEMU >>>>> threads >>>> >>>> Can anyone explain what the whole point of this is? It really just is >>>> a bit of syntactic sugar for the current async state machines. What does >>>> it buy us over going for real threading? >>> >>> The only current block driver that really does everything in an async >>> state machine is qed. It's definitely not nice code, and having to >>> convert all of the other block drivers to this would be a lot of work. >> >> Thanks Kevin :). > > I certainly didn't mean to attack your code or even yourself. It's not > that qed is done particularly bad or anything. That the code isn't > really nice is just the natural result of the callback-based programming > model.
No worries, no offence taken :) Stefan
