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Re: [Qemu-devel] [PATCH v3 0/2] vhost-user: Extend protocol to receive r
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From: |
Michael S. Tsirkin |
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Subject: |
Re: [Qemu-devel] [PATCH v3 0/2] vhost-user: Extend protocol to receive replies on any command. |
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Date: |
Wed, 27 Jul 2016 07:21:15 +0300 |
On Mon, Jul 25, 2016 at 02:27:18PM +0400, Marc-André Lureau wrote:
> Hi
>
> On Mon, Jul 25, 2016 at 10:41 AM, Prerna <address@hidden> wrote:
> >
> >
> > On Thu, Jul 7, 2016 at 12:04 PM, Prerna Saxena <address@hidden>
> > wrote:
> >>
> >> From: Prerna Saxena <address@hidden>
> >>
> >> The current vhost-user protocol requires the client to send responses to
> >> only a
> >> few commands. For the remaining commands, it is impossible for QEMU to
> >> know the
> >> status of the requested operation -- ie, did it succeed? If so, by what
> >> time?
> >>
> >> This is inconvenient, and can also lead to races. As an example:
> >> [..snip..]
> >>
> >> References:
> >> v1 : https://lists.gnu.org/archive/html/qemu-devel/2016-06/msg07152.html
> >> v2 : https://lists.gnu.org/archive/html/qemu-devel/2016-07/msg00048.html
> >>
> >>
> >> Prerna Saxena (2):
> >> vhost-user: Introduce a new protocol feature REPLY_ACK.
> >> vhost-user: Attempt to fix a race with set_mem_table.
> >>
> >> docs/specs/vhost-user.txt | 44 +++++++++++++++
> >> hw/virtio/vhost-user.c | 133
> >> ++++++++++++++++++++++++++++++----------------
> >> 2 files changed, 130 insertions(+), 47 deletions(-)
> >>
> >
> > Ping !
> > Michael, MarcAndre, Did you have a chance to look at this patch series?
> >
>
> That's not going to make it in 2.7 I am afraid.
It's a bugfix so - depends on how quickly can comments be addressed.
--
MST