Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx> wrote: > And if IS_DAX() is correct, then why shouldn't this just be done in > generic code? Why move it to every individual filesystem? One way of looking at it is that the check is then done for every filesystem - most of which don't support it. Not sure whether that's a big enough problem to worry about. The same is true of the automount test too, I suppose... David