linux-kernel - [PATCH 1/2] mm: move page_rmapping() and page_anon

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Date:   Mon,  5 Apr 2021 18:13:54 +0300
From:   Mike Rapoport <rppt@...nel.org>
To:     Andrew Morton <akpm@...ux-foundation.org>
Cc:     Matthew Wilcox <willy@...radead.org>,
        Mike Rapoport <rppt@...nel.org>,
        Mike Rapoport <rppt@...ux.ibm.com>, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH 1/2] mm: move page_rmapping() and page_anon_vma() to mm/internal.h

From: Mike Rapoport <rppt@...ux.ibm.com>

The functions page_rmapping() and page_anon_vma() are not used outside core
mm. Move their declaration from include/linux/mm.h to mm/internal.h

Signed-off-by: Mike Rapoport <rppt@...ux.ibm.com>
---
 include/linux/mm.h | 2 --
 mm/internal.h      | 3 +++
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/include/linux/mm.h b/include/linux/mm.h
index 8ec63f37a78d..74a05dbdcc19 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -1619,8 +1619,6 @@ void page_address_init(void);
 #define page_address_init()  do { } while(0)
 #endif
 
-extern void *page_rmapping(struct page *page);
-extern struct anon_vma *page_anon_vma(struct page *page);
 extern struct address_space *page_mapping(struct page *page);
 
 extern struct address_space *__page_file_mapping(struct page *);
diff --git a/mm/internal.h b/mm/internal.h
index 547a8d7f0cbb..77e0b726eef3 100644
--- a/mm/internal.h
+++ b/mm/internal.h
@@ -358,6 +358,9 @@ void __vma_link_list(struct mm_struct *mm, struct vm_area_struct *vma,
 		struct vm_area_struct *prev);
 void __vma_unlink_list(struct mm_struct *mm, struct vm_area_struct *vma);
 
+void *page_rmapping(struct page *page);
+struct anon_vma *page_anon_vma(struct page *page);
+
 #ifdef CONFIG_MMU
 extern long populate_vma_page_range(struct vm_area_struct *vma,
 		unsigned long start, unsigned long end, int *nonblocking);
-- 
2.28.0