Hi Zhu,
url:
https://github.com/0day-ci/linux/commits/Zhu-Lingshan/vhost-new-vhost_vdpa-SET-GET_BACKEND_FEATURES-handlers/20200909-115726
base: https://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git linux-next
config: parisc-randconfig-m031-20200909 (attached as .config)
compiler:
- Original Message -
> This commit introduced vhost_vdpa_set/get_backend_features() to
> resolve these issues:
> (1)In vhost_vdpa ioctl SET_BACKEND_FEATURES path, currect code
> would try to acquire vhost dev mutex twice
> (first shown in vhost_vdpa_unlocked_ioctl), which can lead
> to
