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Re: [Qemu-devel] [PATCH v2 0/4] virtio-blk: fix issues with unified virt


From: Stefan Hajnoczi
Subject: Re: [Qemu-devel] [PATCH v2 0/4] virtio-blk: fix issues with unified virtio-blk request handling
Date: Wed, 9 Jul 2014 09:56:21 +0200

On Tue, Jul 8, 2014 at 5:14 PM, Kevin Wolf <address@hidden> wrote:
> Am 08.07.2014 um 16:43 hat Stefan Hajnoczi geschrieben:
>> On Tue, Jul 1, 2014 at 5:25 PM, Stefan Hajnoczi <address@hidden> wrote:
>> > This series fixes issues recently introduced when unifying virtio-blk
>> > dataplane's request handling with non-dataplane virtio-blk.
>> >
>> > The problems include broken memory allocation for dataplane requests and a
>> > performance regression for non-dataplane.  See the patches for details.
>> >
>> > Stefan Hajnoczi (4):
>> >   virtio-blk: avoid dataplane VirtIOBlockReq early free
>> >   dataplane: do not free VirtQueueElement in vring_push()
>> >   virtio-blk: avoid g_slice_new0() for VirtIOBlockReq and
>> >     VirtQueueElement
>> >   virtio-blk: embed VirtQueueElement in VirtIOBlockReq
>> >
>> >  hw/block/dataplane/virtio-blk.c     | 30 +++++++++++-----------
>> >  hw/block/virtio-blk.c               | 50 
>> > ++++++++++++++++++-------------------
>> >  hw/virtio/dataplane/vring.c         | 22 ++++++----------
>> >  include/hw/virtio/dataplane/vring.h |  3 +--
>> >  include/hw/virtio/virtio-blk.h      |  6 ++++-
>> >  5 files changed, 53 insertions(+), 58 deletions(-)
>>
>> Hi Kevin,
>> Please include this series in your block pull request.  I missed it
>> last week and it's needed to fix dataplane in QEMU 2.1.
>
> Patch 4 doesn't seem to apply any more. Can you rebase (and include the
> Tested-by tags of Christian)?

Ok.

Stefan



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