On Wed, Oct 17, 2018 at 06:00:51PM +0200, 'Sebastian Andrzej Siewior' wrote: > On 2018-10-17 17:47:07 [+0200], Peter Zijlstra wrote: > > > > Ideally we'd never ever merge anything that only does local invalidates, > > > > on a global address space, that's just broken. > > > > > > A little bit late to lament about that. > > > > For this, yes :/ But for future stuff we should really not allow such > > things anymore. > > so we stay as is?
Well, we can do that preempt kludge you propose to shut up the warning I suppose. But a kludge it is. That code really wants a global invalidate, but we cannot (not without massive surgery in any case).