On Mon, 2011-05-02 at 22:53 +0300, Michael S. Tsirkin wrote: > On Mon, May 02, 2011 at 11:47:08AM -0700, Shirley Ma wrote: > > On Mon, 2011-05-02 at 13:42 +0300, Michael S. Tsirkin wrote: > > > This comment should specify what exactly is the promise the > > > device makes by setting this flag. Specifically, the > > > condition is that no skb fragments are used > > > after the uinfo callback has been called. > > > > > > The way it's implemented, it probably means the device > > > should not use any of skb_clone, expand head etc. > > > > Agree. Or maybe force a copy when device uses skb_clone, expand > > head ...? > > > > Thanks > > Shirley > > Copy from userspace upfront without locking is probably cheaper? Better to prevent this kind of skbs to be used in skb_clone, expand head for now. Thanks Shirley -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
