On Fri, Jan 12, 2018 at 09:55:45AM -0800, Linus Torvalds wrote: > On Fri, Jan 12, 2018 at 8:27 AM, David Laight <[email protected]> wrote: > > > > You need to allow for libraries that create threads before main() > > is called. > > I really don't think we do. I think the normal case is the wrapper. > > Processes should never say "I'm so important that I'm disabling PTI". > That's crazy talk, and wrong. > > It's wrong for all the usual reasons - everybody always thinks that > _their_ own work is so important and bug-free, and that things like > PTI are about protecting all those other imcompetent people. > > No. Bullshit. Nobody should ever disable PTI for themselves, because > nobody is inherently trustworthy. > > Instead, we have the case of something _external_ saying "this > process is so important that it should be started without PTI".
I totally agree, and what I initially envisionned (for my use case) was a config option with a scary enough name if we couldn't have the wrapper. But the wrapper brings the long term benefit of allowing us to do what we want with the pgd, which is a nice add-on. Willy
