> On Nov 7, 2019, at 12:12 PM, Dave Hansen <dave.hansen@xxxxxxxxx> wrote: > > Am I missing something? What's the harm in merging the implementation > that's ready today? If a better one comes along, we'll rip out the ~15 > lines of code in page_alloc.c and merge the better one. No, it is increasingly hard to rip out any code in MM nowadays once merged (looks at those early debugging SLUB code existing for probably 10 years unused, but yet the bar is high to justify removing), so it is important to take time to get it right the first time by all means.
