On Tue 08-01-19 17:13:41, Qian Cai wrote: > > > On 1/8/19 5:02 PM, Andrew Morton wrote: > > > > It's unclear (to me) where we stand with this patch. Shold we proceed > > with v3 for now, or is something else planned? > > I don't have anything else plan for this right now. Michal particular don't like > that 4-line ifdef which supposes to avoid an immediately regression (arguably > small) that existing page_owner users with DEFERRED_STRUCT_PAGE_INIT deselected > that would start to miss tens of thousands early page allocation call sites. So, > feel free to choose v2 of this which has no ifdef if you agree with Michal too. > I am fine either way. Yes I would prefer to revert the faulty commit (fe53ca54270) and work on a more robust page_owner initialization to cover earlier allocations on top of that. Not that I would insist but this would be a more straightforward approach and I hope it will result in a better long term maintainable code in the end. -- Michal Hocko SUSE Labs
