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From: "Michael S. Tsirkin" <mst@redhat.com>
To: qemu-devel@nongnu.org
Cc: Cornelia Huck <cornelia.huck@de.ibm.com>, pbonzini@redhat.com
Subject: [Qemu-devel] [PATCH 0/2] dataplane: fix start/stop races
Date: Tue, 29 Mar 2016 16:42:09 +0300	[thread overview]
Message-ID: <1459258923-10319-1-git-send-email-mst@redhat.com> (raw)

This works around races that data plane introduces
simply by exiting immediately if we detect
that dataplane is active.

It's a small but ugly patch, it's only justification
is that it's minimally intrusive, and that it clearly
has no chance to break non data plane users.

The idea is to rework it all post 2.6.

Michael S. Tsirkin (2):
  virtio: add aio handler
  virtio-blk: use aio handler for data plane

 include/hw/virtio/virtio-blk.h  |  2 ++
 include/hw/virtio/virtio.h      |  4 ++++
 hw/block/dataplane/virtio-blk.c | 13 +++++++++++++
 hw/block/virtio-blk.c           | 28 ++++++++++++++++++----------
 hw/virtio/virtio.c              | 36 ++++++++++++++++++++++++++++++++----
 5 files changed, 69 insertions(+), 14 deletions(-)

-- 
MST

             reply	other threads:[~2016-03-29 13:42 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-03-29 13:42 Michael S. Tsirkin [this message]
2016-03-29 13:42 ` [Qemu-devel] [PATCH 1/2] virtio: add aio handler Michael S. Tsirkin
2016-03-29 14:19   ` Paolo Bonzini
2016-03-29 13:42 ` [Qemu-devel] [PATCH 2/2] virtio-blk: use aio handler for data plane Michael S. Tsirkin
2016-03-29 13:56   ` Paolo Bonzini
2016-03-29 13:58     ` Michael S. Tsirkin
2016-03-29 13:59       ` Paolo Bonzini
2016-03-29 14:05   ` Paolo Bonzini
2016-03-29 14:09     ` Michael S. Tsirkin
2016-03-29 14:44       ` Paolo Bonzini
2016-03-29 13:43 ` [Qemu-devel] [PATCH 0/2] dataplane: fix start/stop races Michael S. Tsirkin
2016-03-29 15:06 ` Cornelia Huck
2016-03-29 16:31 ` Christian Borntraeger
2016-03-30  3:04   ` tu bo
2016-03-30  7:32     ` Paolo Bonzini

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