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Re: [Qemu-devel] [PATCH 5/9] virtio: add aio handler
From: |
Cornelia Huck |
Subject: |
Re: [Qemu-devel] [PATCH 5/9] virtio: add aio handler |
Date: |
Fri, 1 Apr 2016 16:04:20 +0200 |
On Fri, 1 Apr 2016 15:19:50 +0200
Paolo Bonzini <address@hidden> wrote:
> From: "Michael S. Tsirkin" <address@hidden>
>
> In addition to handling IO in vcpu thread and
> in io thread, blk dataplane introduces yet another mode:
> handling it by aio.
>
> This reuses the same handler as previous modes,
> which triggers races as these were not designed to be reentrant.
>
> As a temporary fix, add a separate handler just for aio, this will make
> it possible to disable regular handlers when dataplane is active.
>
> Signed-off-by: Michael S. Tsirkin <address@hidden>
> Signed-off-by: Paolo Bonzini <address@hidden>
> ---
> hw/virtio/virtio.c | 36 ++++++++++++++++++++++++++++++++----
> include/hw/virtio/virtio.h | 3 +++
> 2 files changed, 35 insertions(+), 4 deletions(-)
Reviewed-by: Cornelia Huck <address@hidden>
- [Qemu-devel] [PATCH v2 0/9] virtio: aio handler API, Paolo Bonzini, 2016/04/01
- [Qemu-devel] [PATCH 4/9] virtio-scsi: fix disabled mode, Paolo Bonzini, 2016/04/01
- [Qemu-devel] [PATCH 2/9] virtio: make virtio_queue_notify_vq static, Paolo Bonzini, 2016/04/01
- [Qemu-devel] [PATCH 3/9] virtio-blk: fix disabled mode, Paolo Bonzini, 2016/04/01
- [Qemu-devel] [PATCH 5/9] virtio: add aio handler, Paolo Bonzini, 2016/04/01
- Re: [Qemu-devel] [PATCH 5/9] virtio: add aio handler,
Cornelia Huck <=
- [Qemu-devel] [PATCH 9/9] virtio: remove starting/stopping checks, Paolo Bonzini, 2016/04/01
[Qemu-devel] [PATCH 8/9] virtio: merge virtio_queue_aio_set_host_notifier_handler with virtio_queue_set_aio, Paolo Bonzini, 2016/04/01
[Qemu-devel] [PATCH 7/9] virtio-scsi: use aio handler for data plane, Paolo Bonzini, 2016/04/01
[Qemu-devel] [PATCH 6/9] virtio-blk: use aio handler for data plane, Paolo Bonzini, 2016/04/01