On 02/03/2016 02:15 PM, Arnd Bergmann wrote:
The change to move the pagealloc logic broke the slab allocator
check when it's disabled at compile time:
mm/slab.c: In function 'is_debug_pagealloc_cache':
mm/slab.c:1608:29: error: implicit declaration of function 'debug_pagealloc_enabled' [-Werror=implicit-function-declaration]
This adds an inline helper to get it to work again.
Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
Fixes: 0a244aea1a61 ("mm/slab: clean up DEBUG_PAGEALLOC processing code")
---
include/linux/mm.h | 1 +
1 file changed, 1 insertion(+)
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 5d86eb2e8584..90d600ce56ad 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -2242,6 +2242,7 @@ 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 0; }
static inline void
kernel_map_pages(struct page *page, int numpages, int enable) {}
#ifdef CONFIG_HIBERNATION
I believe this should be fixed with http://article.gmane.org/gmane.linux.kernel.mm/145655
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