* Kirill A. Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx> wrote: > For boot-time switching between paging modes, we need to be able to > change STACK_TOP_MAX at runtime. > > The change is trivial and it doesn't affect kernel image size. > > Signed-off-by: Kirill A. Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx> > --- > arch/x86/include/asm/processor.h | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/arch/x86/include/asm/processor.h b/arch/x86/include/asm/processor.h > index 3fa26a61eabc..fa9300ccce1b 100644 > --- a/arch/x86/include/asm/processor.h > +++ b/arch/x86/include/asm/processor.h > @@ -871,7 +871,7 @@ static inline void spin_lock_prefetch(const void *x) > IA32_PAGE_OFFSET : TASK_SIZE_MAX) > > #define STACK_TOP TASK_SIZE_LOW > -#define STACK_TOP_MAX TASK_SIZE_MAX > +#define STACK_TOP_MAX (pgtable_l5_enabled ? TASK_SIZE_MAX : DEFAULT_MAP_WINDOW) While it's only used once in fs/exec.c, why doesn't it affect kernel image size? Thanks, Ingo -- 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>
