Messages in this thread Patch in this message | | | From | Christian Borntraeger <> | Subject | [PATCH v4 1/4] mm: provide debug_pagealloc_enabled() without CONFIG_DEBUG_PAGEALLOC | Date | Wed, 3 Feb 2016 09:39:27 +0100 |
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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@de.ibm.com> Acked-by: David Rientjes <rientjes@google.com> Acked-by: Thomas Gleixner <tglx@linutronix.de> --- include/linux/mm.h | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/include/linux/mm.h b/include/linux/mm.h index f1cd22f..ae84716 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -2194,13 +2194,18 @@ kernel_map_pages(struct page *page, int numpages, int enable) #ifdef CONFIG_HIBERNATION extern bool kernel_page_present(struct page *page); #endif /* CONFIG_HIBERNATION */ -#else +#else /* CONFIG_DEBUG_PAGEALLOC */ +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 static inline bool kernel_page_present(struct page *page) { return true; } #endif /* CONFIG_HIBERNATION */ -#endif +#endif /* CONFIG_DEBUG_PAGEALLOC */ #ifdef __HAVE_ARCH_GATE_AREA extern struct vm_area_struct *get_gate_vma(struct mm_struct *mm); -- 2.3.0
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