On Fri, 27 May 2016 13:17:19 -0700 "Shi, Yang" <yang.shi@xxxxxxxxxx> wrote: > >> Actually, I think the #ifdef should be removed if lookup_page_ext() is > >> possible to return NULL. It sounds not make sense returning NULL only > >> when DEBUG_VM is enabled. It should return NULL no matter what debug > >> config is selected. If Joonsoo agrees with me I'm going to come up with > >> a patch to fix it. > >> > > > > I've lost the plot here. What is the status of this patch? > > > > Latest version: > > Yes, this is the latest version. We are discussing about some future > optimization. > > And, Minchan Kim pointed out a possible race condition which exists even > before this patch. I proposed a quick fix, as long as they are happy to > the fix, I will post it to the mailing list. OK, thanks - I've moved it into the for-Linus-next-week queue. -- 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>