On Tue, 2020-10-06 at 18:44 +0900, Hajime Tazaki wrote: > > * These operations must be provided by a host library or by the application > * itself. > * > + * @mem_alloc - allocate memory > + * @mem_free - free memory > + * Actual kernel-doc would be nicer. > + empty_zero_page = memblock_alloc(PAGE_SIZE, PAGE_SIZE); > + memset((void *)empty_zero_page, 0, PAGE_SIZE); > + > + { > + unsigned long zones_size[MAX_NR_ZONES] = {0, }; Hmm, what's with the extra scope? johannes