On Tue, 26 Jan 2016, Christian Borntraeger wrote:
> We can provide debug_pagealloc_enabled() also if CONFIG_DEBUG_PAGEALLOC
> is not set. It will return false in that case.
>
> Signed-off-by: Christian Borntraeger <borntraeger@xxxxxxxxxx>
> ---
> include/linux/mm.h | 4 ++++
> 1 file changed, 4 insertions(+)
>
> diff --git a/include/linux/mm.h b/include/linux/mm.h
> index 7783073..fbc5354 100644
> --- a/include/linux/mm.h
> +++ b/include/linux/mm.h
> @@ -2148,6 +2148,10 @@ kernel_map_pages(struct page *page, int numpages, int enable)
> extern bool kernel_page_present(struct page *page);
> #endif /* CONFIG_HIBERNATION */
> #else
> +static inline bool debug_pagealloc_enabled(void)
> +{
> + return false;
> +}
> static inline void
> kernel_map_pages(struct page *page, int numpages, int enable) {}
> #ifdef CONFIG_HIBERNATION
Since the patchset needs to be refreshed based on Heiko and Thomas's
comments, please add some /* CONFIG_DEBUG_PAGEALLOC */ annotation to the
#else and #endif lines so this block is easier to read. After that, feel
free to add
Acked-by: David Rientjes <rientjes@xxxxxxxxxx>
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