On Thu, Jan 09, 2014 at 11:09:21PM +0300, Dan Carpenter wrote: > We've had this discussion before where you urge me to trust the host... > > Problem: This code is racy. > Solution: The host will only send one message at a time. > > Now I have to audit the user space code on the host and I don't feel > like doing that so you win. > > I wish we had a better way to do IPC. If kdbus were ready, that might > have worked for this, and it's a better solution because both sender and > reciever code will be written in a less trusting way. kdbus is almost ready, it might make 3.15, depending on the result of work that is happening at linux.conf.au and FOSDEM. If it would be a better solution for this, that's even more reason to get kdbus merged soon, no need to add something that doesn't really work. But, how will kdbus help with this? It's a userspace <-> userspace message transmission bus, would you want the kernel to be a receiver or sender here? thanks, greg k-h _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
