Re: [Qemu-devel] [RFC] Replace posix-aio with custom thread pool

[Gerd Hoffmann]

Anthony Liguori wrote:
> I don't know about grant table references b/c that's really foreign
> memory.  But this is a good argument against the DMA as it stands, b/c
> you may be handing foreign memory to bdrv_aio_readv/writev.
> 
> A big reason for the map/unmap lock/unlock abstraction though would be
> the qemu-dm map cache.  I think you could use it to pretty reasonably
> integrate the map cache which I know I've previously could never be done
> :-)

I see we fully agree here.

/me mumbles something about funny mail crossings.
Maybe we should use irc next time to save some typing ;)

cheers,
  Gerd