When commit
bd33ef368135 ("mm: enable page poisoning early at boot") got
rid of the PAGE_EXT_DEBUG_POISON, page_is_poisoned in the header left
behind. This patch cleans up the leftovers under the table.
Link: http://lkml.kernel.org/r/1528101069-21637-1-git-send-email-kpark3469@gmail.com
Signed-off-by: Sahara <keun-o.park@darkmatter.ae>
Acked-by: Michal Hocko <mhocko@suse.com>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
#ifdef CONFIG_PAGE_POISONING
extern bool page_poisoning_enabled(void);
extern void kernel_poison_pages(struct page *page, int numpages, int enable);
-extern bool page_is_poisoned(struct page *page);
#else
static inline bool page_poisoning_enabled(void) { return false; }
static inline void kernel_poison_pages(struct page *page, int numpages,
int enable) { }
-static inline bool page_is_poisoned(struct page *page) { return false; }
#endif
#ifdef CONFIG_DEBUG_PAGEALLOC