From b5e3aa0a4d5e35329203fd09acb0dbc7f7fd64de Mon Sep 17 00:00:00 2001
From: Vineet Gupta <Vineet.Gupta1@synopsys.com>
Date: Tue, 8 Sep 2015 14:59:56 -0700
Subject: [PATCH] mm: remove put_page_unless_one()
It has no callers.
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/mm.h | 12 ------------
1 file changed, 12 deletions(-)
diff --git a/include/linux/mm.h b/include/linux/mm.h
index e1fbd18b8c4bb..4ec72ef1f04a9 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -361,18 +361,6 @@ static inline int get_page_unless_zero(struct page *page)
return atomic_inc_not_zero(&page->_count);
}
-/*
- * Try to drop a ref unless the page has a refcount of one, return false if
- * that is the case.
- * This is to make sure that the refcount won't become zero after this drop.
- * This can be called when MMU is off so it must not access
- * any of the virtual mappings.
- */
-static inline int put_page_unless_one(struct page *page)
-{
- return atomic_add_unless(&page->_count, -1, 1);
-}
-
extern int page_is_ram(unsigned long pfn);
extern int region_is_ram(resource_size_t phys_addr, unsigned long size);
--
2.30.2