[RFC,0/2] virtio/s390: fix some races in virtio-ccw

Message

Halil Pasic Sept. 12, 2018, 2:02 p.m. UTC

Came up with these while investigating
https://bugzilla.linux.ibm.com/show_bug.cgi?id=170918

It's RFC because I don't really understand the original design, and I'm
not sure this is the best way to fix the problems. Thus took I took
minimal intrusive approach.

Halil Pasic (2):
  virtio/s390: avoid race on vcdev->config
  virtio/s390: fix race in ccw_io_helper()

 drivers/s390/virtio/virtio_ccw.c | 17 ++++++++++++++---
 1 file changed, 14 insertions(+), 3 deletions(-)

Comments

Halil Pasic Sept. 12, 2018, 2:04 p.m. UTC | #1

On 09/12/2018 04:02 PM, Halil Pasic wrote:
> Came up with these while investigating
> https://bugzilla.linux.ibm.com/show_bug.cgi?id=170918

Sorry bad reference, this is the correct one
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1788432

> 
> It's RFC because I don't really understand the original design, and I'm
> not sure this is the best way to fix the problems. Thus took I took
> minimal intrusive approach.
> 
> Halil Pasic (2):
>    virtio/s390: avoid race on vcdev->config
>    virtio/s390: fix race in ccw_io_helper()
> 
>   drivers/s390/virtio/virtio_ccw.c | 17 ++++++++++++++---
>   1 file changed, 14 insertions(+), 3 deletions(-)
>