Re: [Qemu-devel] [PATCH v2 0/4] linux-aio: fix batch submission

[Ming Lei]

Hi Stefan and Guys,

On Thu, Sep 4, 2014 at 6:27 PM, Ming Lei <address@hidden> wrote:
> The 1st patch fixes batch submission.
>
> The 2nd one fixes -EAGAIN for non-batch case.
>
> The 3rd one is a cleanup.
>
> The 4th one increase max event to 256 for supporting the comming
> multi virt-queue.
>
> This patchset is splitted from previous patchset(dataplane: optimization
> and multi virtqueue support), as suggested by Stefan.
>
> These patches have been running well in my box for weeks, and hope
> they can be merged soon, and I have some patches which do depend them.
>
> V2:
>         - code style fix and commit log fix as suggested by Benoît Canet
>
> V1:
>         - rebase on latest QEMU master
>
>  block/linux-aio.c |  131 
> +++++++++++++++++++++++++++++++++++++++++------------
>  1 file changed, 103 insertions(+), 28 deletions(-)

Could you take a look at these patches or the first two/three only?

With this fix merged, some work can be started to extend
submitting I/O as batch to multi-lun SCSI case, and this kind of
optimization can't be done by vhost-scsi at all.

Also multi-queue patches depend on these patches too.

The 1st one has one line conflict with io_cancel() against QEMU
master, and please let me know if you need me to resend or
other comments.

Thanks,
--
Ming Lei