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Subject: Re: [PATCH] slub: prefetch next freelist pointer in slab_alloc()
From: Geert Uytterhoeven <geert@linux-m68k.org>
To: Christoph Lameter <cl@linux.com>
Cc: Pekka Enberg <penberg@kernel.org>, Eric Dumazet <eric.dumazet@gmail.com>,
        linux-kernel <linux-kernel@vger.kernel.org>,
        David Rientjes <rientjes@google.com>, "Alex,Shi" <alex.shi@intel.com>,
        Shaohua Li <shaohua.li@intel.com>, Matt Mackall <mpm@selenic.com>,
        Linux-Next <linux-next@vger.kernel.org>
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On Mon, Jan 30, 2012 at 22:53, Christoph Lameter <cl@linux.com> wrote:
> On Mon, 30 Jan 2012, Geert Uytterhoeven wrote:
>> m68k/allmodconfig at http://kisskb.ellerman.id.au/kisskb/buildresult/5527349/
>>
>> mm/slub.c:274: error: implicit declaration of function 'prefetch'
>>
>> Sorry, didn't notice it earlier due to other build breakage in -next.
>
> Does this fix it?

Yep. Thx!

> Subject: slub: include include for prefetch
>
> Otherwise m68k breaks.
>
> Reported-by: Geert Uytterhoeven <geert@linux-m68k.org>
> Signed-off-by: Christoph Lameter <cl@linux.com>

Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>

> ---
>  mm/slub.c |    1 +
>  1 file changed, 1 insertion(+)
>
> Index: linux-2.6/mm/slub.c
> ===================================================================
> --- linux-2.6.orig/mm/slub.c    2012-01-13 10:04:06.000000000 -0600
> +++ linux-2.6/mm/slub.c 2012-01-30 15:51:55.000000000 -0600
> @@ -29,6 +29,7 @@
>  #include <linux/math64.h>
>  #include <linux/fault-inject.h>
>  #include <linux/stacktrace.h>
> +#include <linux/prefetch.h>
>
>  #include <trace/events/kmem.h>

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-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