On Wed, 21 Aug 2024 at 13:07, Christoph Hellwig <hch@xxxxxxxxxxxxx> wrote: > > On Mon, Aug 19, 2024 at 05:27:33PM +0800, Cindy Lu wrote: > > Add a new UAPI to support setting the vhost device to > > use kthread mode. The user space application needs to use > > VHOST_SET_USE_KTHREAD to set the mode. This setting must > > be set before VHOST_SET_OWNER is set. > > Usage of an API is a complete kernel internal detail that has absolutely > no business being exposed to applications. > > What is the application visible behavior that the API use is the proxy > for? > The userspace application may need to know the details of the kernel. For example, some userspaces may use a script to track threads. If they use task mode, the script may not work properly. In that case, they can choose Kthread mode. Thanks Cindy >
