mbox series

[v1,0/2] virtio-balloon: tweak config_changed

Message ID 1546493462-32244-1-git-send-email-wei.w.wang@intel.com (mailing list archive)
Headers show
Series virtio-balloon: tweak config_changed | expand

Message

Wang, Wei W Jan. 3, 2019, 5:31 a.m. UTC 
Since virtio-ccw doesn't work with accessing to the config registers
inside an interrupt context, this patch series avoids that issue by
moving the config register accesses to the related workqueue contexts.

Wei Wang (2):
  virtio-balloon: tweak config_changed implementation
  virtio-balloon: improve update_balloon_size_func

 drivers/virtio/virtio_balloon.c | 59 +++++++++++++++++++++--------------------
 1 file changed, 30 insertions(+), 29 deletions(-)

Comments

Cornelia Huck Jan. 3, 2019, 9:26 a.m. UTC | #1 
On Thu,  3 Jan 2019 13:31:00 +0800
Wei Wang <wei.w.wang@intel.com> wrote:

> Since virtio-ccw doesn't work with accessing to the config registers
> inside an interrupt context, this patch series avoids that issue by
> moving the config register accesses to the related workqueue contexts.
> 
> Wei Wang (2):
>   virtio-balloon: tweak config_changed implementation
>   virtio-balloon: improve update_balloon_size_func
> 
>  drivers/virtio/virtio_balloon.c | 59 +++++++++++++++++++++--------------------
>  1 file changed, 30 insertions(+), 29 deletions(-)
> 

A quick test (various 'balloon <num>' in the QEMU monitor) with a
virtio-balloon-ccw device seems to work fine here.