Re: [PATCH 30/38] s390: drop pte_file()-related helpers

Martin Schwidefsky
2014-12-29T10:07:39Z

On Wed, 24 Dec 2014 14:22:38 +0200
"Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> wrote:

> We've replaced remap_file_pages(2) implementation with emulation.
> Nobody creates non-linear mapping anymore.
>
> Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
> Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
> ---
> @@ -279,7 +279,6 @@ static inline int is_module_addr(void *addr)
> *
> * pte_present is true for the bit pattern .xx...xxxxx1, (pte & 0x001) == 0x001
> * pte_none is true for the bit pattern .10...xxxx00, (pte & 0x603) == 0x400
> - * pte_file is true for the bit pattern .11...xxxxx0, (pte & 0x601) == 0x600
> * pte_swap is true for the bit pattern .10...xxxx10, (pte & 0x603) == 0x402
> */

Nice, once this is upstream I can free up one of the software bits in
the pte by redefining the type bits. Right now all of them are used up.
Is the removal of non-linear mappings a done deal ?

--
blue skies,
Martin.

"Reality continues to ruin my life." - Calvin.