On Tue 09-03-21 08:29:21, Minchan Kim wrote: > On Tue, Mar 09, 2021 at 12:03:08PM +0100, Michal Hocko wrote: [...] > > Sorry for nit picking but I think the additional abstraction for > > migrate_prep is not really needed and we can remove some more code. > > Maybe we should even get rid of migrate_prep_local which only has a > > single caller and open coding lru draining with a comment would be > > better from code reading POV IMO. > > Thanks for the code. I agree with you. > However, in this moment, let's go with this one until we conclude. > The removal of migrate_prep could be easily done after that. > I am happy to work on it. I will leave that up to you but I find it a bit pointless to add migrate_finish just to remove it in the next patch. Btw. you should also move lru_cache_disabled up in swap.c to fix up compilation issues by 0 day bot. I didn't do that in my version. -- Michal Hocko SUSE Labs