On Wed, Sep 19, 2018 at 01:23:29PM +0100, Will Deacon wrote: > > > > + * which (when !need_flush_all; fullmm will have start = end = > > > > ~0UL) provides > > > > + * the range that needs to be flushed to cover the pages to be > > > > freed. > > > > > > I don't understand the mention of need_flush_all here -- I didn't think it > > > was used by the core code at all. > > > > The core does indeed not use that flag; but if the architecture set > > that, the range is still ignored. > > > > Can you suggest clearer wording? > > The range is only ignored if the default tlb_flush() implementation is used > though, right? Since this text is about the fields that tlb_flush() can use, > I think we can just delete the part in brackets.
Well, any architecture that actually uses need_flush_all will obviously require a tlb_flush implementation that looks at it. But OK, I'll remove the note.
