Re: [PATCH v2 6/6] x86: switch the 64bit uncached page clear to SSE/AVX v2

["Jan Beulich" <JBeulich@suse.com>]

>>> On 09.08.12 at 17:03, "Kirill A. Shutemov" 
>>> <kirill.shutemov@linux.intel.com> wrote:
>  ENTRY(clear_page_nocache)
>       CFI_STARTPROC
> -     xorl   %eax,%eax
> -     movl   $4096/64,%ecx
> +     push   %rdi
> +     call   kernel_fpu_begin
> +     pop    %rdi

You use CFI annotations elsewhere, so why don't you use
pushq_cfi/popq_cfi here?

Jan