linux-kernel - Re: [PATCH 24/38] mips: drop _PAGE_FILE and pte

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Message-ID: <CAMuHMdWKNEeb3uOJ+gct06mbuD4RqP7F32FhMtax-tG7d_Yj1g@mail.gmail.com>
Date:	Thu, 25 Dec 2014 11:08:11 +0100
From:	Geert Uytterhoeven <geert@...ux-m68k.org>
To:	"Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Peter Zijlstra <peterz@...radead.org>,
	Ingo Molnar <mingo@...nel.org>, Dave Jones <davej@...hat.com>,
	Sasha Levin <sasha.levin@...cle.com>,
	Hugh Dickins <hughd@...gle.com>, Linux MM <linux-mm@...ck.org>,
	Linux-Arch <linux-arch@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Ralf Baechle <ralf@...ux-mips.org>
Subject: Re: [PATCH 24/38] mips: drop _PAGE_FILE and pte_file()-related helpers

On Wed, Dec 24, 2014 at 1:22 PM, Kirill A. Shutemov
<kirill.shutemov@...ux.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@...ux.intel.com>
> Cc: Ralf Baechle <ralf@...ux-mips.org>
> ---
>  arch/m68k/include/asm/mcf_pgtable.h  |  6 ++----

This contains a change to an m68k header file.
The same file was modified in the m68k part of the series, but this change was
not included?

> --- a/arch/m68k/include/asm/mcf_pgtable.h
> +++ b/arch/m68k/include/asm/mcf_pgtable.h
> @@ -385,15 +385,13 @@ static inline void cache_page(void *vaddr)
>         *ptep = pte_mkcache(*ptep);
>  }
>
> -#define PTE_FILE_SHIFT         11
> -
>  /*
>   * Encode and de-code a swap entry (must be !pte_none(e) && !pte_present(e))
>   */
>  #define __swp_type(x)          ((x).val & 0xFF)
> -#define __swp_offset(x)                ((x).val >> PTE_FILE_SHIFT)
> +#define __swp_offset(x)                ((x).val >> 11)
>  #define __swp_entry(typ, off)  ((swp_entry_t) { (typ) | \
> -                                       (off << PTE_FILE_SHIFT) })
> +                                       (off << 11) })
>  #define __pte_to_swp_entry(pte)        ((swp_entry_t) { pte_val(pte) })
>  #define __swp_entry_to_pte(x)  (__pte((x).val))

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds
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