Re: [PATCH v7 3/7] set_memory: allow set_direct_map_*_noflush() for multiple pages

On Mon, 2020-10-26 at 10:37 +0200, Mike Rapoport wrote:

+++ b/arch/x86/mm/pat/set_memory.c @@ -2184,14 +2184,14 @@ static int __set_pages_np(struct page *page, int numpages) return __change_page_attr_set_clr(&cpa, 0); } -int set_direct_map_invalid_noflush(struct page *page) +int set_direct_map_invalid_noflush(struct page *page, int numpages) {

•   return __set_pages_np(page, 1);
  

•   return __set_pages_np(page, numpages);
  

} -int set_direct_map_default_noflush(struct page *page) +int set_direct_map_default_noflush(struct page *page, int numpages) {

•   return __set_pages_p(page, 1);
  

•   return __set_pages_p(page, numpages);
  

}

Somewhat related to your other series, this could result in large NP pages and trip up hibernate.