On Wed, Jan 22, 2020 at 11:44:24AM +0100, Oleksandr Natalenko wrote: > Hello. > > On Tue, Jan 21, 2020 at 10:11:13AM -0800, Minchan Kim wrote: > > > > I also think people don't want to give an KSM hint to non-mergeable area. > > > > > > And how the manager knows which data is mergable? > > > > Oleksandr, could you say your thought why you need address range based > > API? > > It seems I've overlooked an important piece of this submission: one > cannot apply the hint to all the anonymous mapping regardless of address > range. For KSM I'd rather either have a possibility to hint all the > anonymous mappings, or, as it was suggested previously, be able to iterate > over existing mappings using some (fd-based?) API. Thing is how you could identify a certan range is better for KSM than others from external process?
