On Mon, Jan 14, 2013 at 04:26:55PM +0100, Paolo Bonzini wrote:
> +static ssize_t handle_aiocb_discard(RawPosixAIOData *aiocb)
> +{
> +int ret = -EOPNOTSUPP;
> +BDRVRawState *s = aiocb->bs->opaque;
> +
> +if (s->has_discard == 0) {
> +return 0;
> +}
> +
> +if (aiocb->aio_
This is easy with the thread pool, because we can use s->is_xfs and
s->has_discard from the worker function.
QEMU has a widespread assumption that each I/O operation writes less
than 2^32 bytes. This patch doesn't fix it throughout of course,
but it starts correcting struct RawPosixAIOData so tha
