On (04/18/17 13:06), Michal Hocko wrote: [..] > > > copy_page is a performance sensitive function and I believe that we do > > > those tricks exactly for this purpose. > > > > a wild thought, > > > > use > > #define copy_page(to,from) memcpy((to), (from), PAGE_SIZE) > > > > when DEBUG_SLAB is set? so arch copy_page() (if provided by arch) > > won't be affected otherwise. > > SLAB is not guaranteed to provide page size aligned object AFAIR. oh, if there are no guarantees for page_sized allocations regardless the .config then agree, won't help. -ss -- 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>
