linux-kernel - [PATCH] mm: clean up page_is

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Message-Id: <1528014138-27674-1-git-send-email-kpark3469@gmail.com>
Date:   Sun,  3 Jun 2018 12:22:18 +0400
From:   kpark3469@...il.com
To:     linux-kernel@...r.kernel.org
Cc:     akpm@...ux-foundation.org, dan.j.williams@...el.com,
        mhocko@...e.com, vinmenon@...eaurora.org, jack@...e.cz,
        Sahara <keun-o.park@...kmatter.ae>
Subject: [PATCH] mm: clean up page_is_poisoned in linux/mm.h

From: Sahara <keun-o.park@...kmatter.ae>

When bd33ef36("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.

Signed-off-by: Sahara <keun-o.park@...kmatter.ae>
---
 include/linux/mm.h | 2 --
 1 file changed, 2 deletions(-)

diff --git a/include/linux/mm.h b/include/linux/mm.h
index c6fa9a2..a53b0ad 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -2522,12 +2522,10 @@ extern int apply_to_page_range(struct mm_struct *mm, unsigned long address,
 #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
-- 
2.7.4