Re: [Qemu-devel] [Qemu-block] [PATCH v2 11/11] block: Only poll block layer fds in bdrv_aio_poll

[Fam Zheng]

On Fri, 09/11 11:36, Alberto Garcia wrote:
> On Fri 11 Sep 2015 11:14:33 AM CEST, Fam Zheng <address@hidden> wrote:
> 
> >> > Another advantage for bdrv_aio_poll() is, in main loop we will not
> >> > need a separate AioContext in changes like:
> >> > 
> >> > http://patchwork.ozlabs.org/patch/514968/
> >> > 
> >> > Because nested aio_poll will automatically be limited to only
> >> > process block layer events. My idea is to eventually let main loop
> >> > use aio_poll
> >> 
> >> That would be a step back.  Using GSource is useful because it lets
> >> you integrate libraries such as GTK+.
> >
> > Can we move GTK to a separate GSource thread?
> 
> I think that GTK should always run in the main thread, or at least the
> one running the default main loop / GMainContext.

Yeah it's basically GMainContext staying in the main thread and
block/net/chardev I/O put in a new AioContext thread.

Fam