On Thu 18-08-16 20:05:29, Xie Yisheng wrote: > As we know, arm64 also support gigantic hugepage eg. 1G. Well, I do not know that. How can I check? Anyway to the patch [...] > index 87e11d8..b4d8048 100644 > --- a/mm/hugetlb.c > +++ b/mm/hugetlb.c > @@ -1022,7 +1022,8 @@ static int hstate_next_node_to_free(struct hstate *h, nodemask_t *nodes_allowed) > ((node = hstate_next_node_to_free(hs, mask)) || 1); \ > nr_nodes--) > > -#if (defined(CONFIG_X86_64) || defined(CONFIG_S390)) && \ > +#if (defined(CONFIG_X86_64) || defined(CONFIG_S390) || \ > + defined(CONFIG_ARM64)) && \ > ((defined(CONFIG_MEMORY_ISOLATION) && defined(CONFIG_COMPACTION)) || \ > defined(CONFIG_CMA)) this ifdef is getting pretty unwieldy. For one thing I think that respective archs should enable ARCH_HAVE_GIGANTIC_PAGES. > static void destroy_compound_gigantic_page(struct page *page, > -- > 1.7.12.4 > > -- > 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> -- 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>