$ grep -r WANT_PAGE_VIRTUAL arch/ ./arch/m68k/include/asm/page_mm.h:#define WANT_PAGE_VIRTUAL ./arch/sparc/include/asm/page_64.h:#define WANT_PAGE_VIRTUAL ./arch/xtensa/include/asm/page.h:#define WANT_PAGE_VIRTUAL ./arch/microblaze/include/asm/page.h:#define WANT_PAGE_VIRTUAL 1 /* page alloc 2 relies on this */