On Thu, 05/28 10:21, Paolo Bonzini wrote: > > > On 28/05/2015 03:46, Fam Zheng wrote: > > The main context uses iohandler and aio_dispatch, neither calls > > aio_set_dispatching(). However, if we have [2], they can be changed to > > aio_poll(), then would this idea work? > > I think it's a bad idea to handle aio_poll for context B in a different > way, just because you have an outer aio_poll for context A...
But we already do something similar: ignoring slirp, main_loop_wait() is like an iothread aio_poll() without the "outermost differentiation", while the current aio_poll() in bdrv_drain() is roughly "main_loop_wait() minus iohandlers". Fam
