Re: [Qemu-devel] [PATCH 2/4] block: immediately cancel oversized read/write requests

[Paolo Bonzini]

Il 08/09/2014 17:13, ronnie sahlberg ha scritto:
> 
> What I would like to see would also be to report these limitations to
> the guest itself to prevent it from generating too large I/Os.

That's difficult because you don't want a backend change (e.g. from
local storage to iSCSI) to change the vital product data in the guest.

That's why we have splitting code for discard, and why we would have to
add it for read/write too.

Paolo