On Fri 05-01-18 13:27:48, Cristopher Lameter wrote: > On Fri, 5 Jan 2018, Michal Hocko wrote: > > > > Also why are you migrating the pages on pagelist if a > > > add_page_for_migration() fails? One could simply update > > > the status in user space and continue. > > > > I am open to further cleanups. Care to send a full patch with the > > changelog? I would rather not fold more changes to the already tested > > one. > > While doing that I saw that one could pull the rwsem locking out of > add_page_for_migration() as well in order to avoid taking it for each 4k > page. Include that? Yeah, why not if the end result turns out to be simpler and easier to maintain. Please note that I was mostly after simplicity. There are other things to sort out though. Please read the cover which contains several API oddities which would be good to either sort out or at least document them. Please also note that I am too busy with the most "popular" bug these days, unfortunately, so my review bandwidth will be very limited. -- Michal Hocko SUSE Labs -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>
