Can you please cc stable? Right now 4.20 does not work under KVM. On 07.01.2019 08:01, Wei Wang wrote: > Since virtio-ccw doesn't work with accessing to the config space > inside an interrupt context, this patch series avoids that issue by > moving the config register accesses to the related workqueue contexts. > > v2->v3 ChangeLog: > - rename cmd_id_received to cmd_id_received_cache, and have call sites > read the latest value via virtio_balloon_cmd_id_received. (Still > kept Cornelia and Halil's reviewed-by as it's a minor change) > - remove zeroing vb->num_free_page_blocks in probe since vb is > allocated via kzalloc. > v1->v2 ChangeLog: > - add config_read_bitmap to indicate to the workqueue callbacks about > the necessity of reading the related config fields. > > Wei Wang (3): > virtio-balloon: tweak config_changed implementation > virtio-balloon: improve update_balloon_size_func > virtio_balloon: remove the unnecessary 0-initialization > > drivers/virtio/virtio_balloon.c | 104 ++++++++++++++++++++++++++-------------- > 1 file changed, 69 insertions(+), 35 deletions(-) >