On Tue, Feb 9, 2016 at 9:15 AM, Arnd Bergmann <arnd@xxxxxxxx> wrote:
> The newly added kcompactd code introduces multiple build errors:
>
> include/linux/compaction.h:91:12: error: 'kcompactd_run' defined but not used [-Werror=unused-function]
> mm/compaction.c:1953:2: error: implicit declaration of function 'hotcpu_notifier' [-Werror=implicit-function-declaration]
>
> This marks the new empty wrapper functions as 'inline' to avoid unused-function warnings,
> and includes linux/cpu.h to get the hotcpu_notifier declaration.
>
> Fixes: 8364acdfa45a ("mm, compaction: introduce kcompactd")
The 8364acdfa45a is a linux-next ID and changes on a daily basis, so you
can't really use a "Fixes" here. It doesn't matter if akpm just
squishes it into
the original, but I thought I'd mention it for future reference.
P.
..
> Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
> ---
> I stumbled over this while trying out the mmots patches today for an unrelated reason.
>
> diff --git a/include/linux/compaction.h b/include/linux/compaction.h
> index 1367c0564d42..d7c8de583a23 100644
> --- a/include/linux/compaction.h
> +++ b/include/linux/compaction.h
> @@ -88,15 +88,15 @@ static inline bool compaction_deferred(struct zone *zone, int order)
> return true;
[...]
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