[v4] Improve vhost-user VQ notifier unmap

[PATCH v4 0/2] Improve vhost-user VQ notifier unmap

Xueming Li posted 2 patches 2 years, 6 months ago

Diff against v1 v2 v3 v5 v6
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Maintainers: "Michael S. Tsirkin" <mst@redhat.com>

There is a newer version of this series

hw/virtio/vhost-user.c         | 41 +++++++++++++---------------------
include/hw/virtio/vhost-user.h |  1 -
2 files changed, 16 insertions(+), 26 deletions(-)

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[PATCH v4 0/2] Improve vhost-user VQ notifier unmap

Posted by Xueming Li 2 years, 6 months ago

When vDPA applicaiton in client mode shutdown, unmapped VQ notifier
might being accessed by vCPU thread under high tx traffic, it will
crash VM in rare conditon. This patch try to fix it with better RCU
sychronization of new flatview.

v2: no RCU draining on vCPU thread
v3: minor fix on coding style and comments
    https://lists.nongnu.org/archive/html/qemu-devel/2021-10/msg01764.html
v4: fix first patch compilation

Xueming Li (2):
  vhost-user: fix VirtQ notifier cleanup
  vhost-user: remove VirtQ notifier restore

 hw/virtio/vhost-user.c         | 41 +++++++++++++---------------------
 include/hw/virtio/vhost-user.h |  1 -
 2 files changed, 16 insertions(+), 26 deletions(-)

-- 
2.33.0