linux-kernel - [PATCH v2 2/2] mm: remove page

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Message-ID: <20230701032853.258697-3-zhangpeng362@huawei.com>
Date:   Sat, 1 Jul 2023 11:28:53 +0800
From:   Peng Zhang <zhangpeng362@...wei.com>
To:     <linux-mm@...ck.org>, <linux-kernel@...r.kernel.org>,
        <willy@...radead.org>, <sidhartha.kumar@...cle.com>
CC:     <akpm@...ux-foundation.org>, <wangkefeng.wang@...wei.com>,
        <sunnanyong@...wei.com>, ZhangPeng <zhangpeng362@...wei.com>
Subject: [PATCH v2 2/2] mm: remove page_rmapping()

From: ZhangPeng <zhangpeng362@...wei.com>

After converting the last user to folio_raw_mapping(), we can safely
remove the function.

Signed-off-by: ZhangPeng <zhangpeng362@...wei.com>
Reviewed-by: Sidhartha Kumar <sidhartha.kumar@...cle.com>
---
 include/linux/mm.h | 1 -
 mm/util.c          | 6 ------
 2 files changed, 7 deletions(-)

diff --git a/include/linux/mm.h b/include/linux/mm.h
index 39aa409e84d5..c849419c6b51 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -2151,7 +2151,6 @@ static inline void *folio_address(const struct folio *folio)
 	return page_address(&folio->page);
 }
 
-extern void *page_rmapping(struct page *page);
 extern pgoff_t __page_file_index(struct page *page);
 
 /*
diff --git a/mm/util.c b/mm/util.c
index dd12b9531ac4..5e9305189c3f 100644
--- a/mm/util.c
+++ b/mm/util.c
@@ -734,12 +734,6 @@ void *vcalloc(size_t n, size_t size)
 }
 EXPORT_SYMBOL(vcalloc);
 
-/* Neutral page->mapping pointer to address_space or anon_vma or other */
-void *page_rmapping(struct page *page)
-{
-	return folio_raw_mapping(page_folio(page));
-}
-
 struct anon_vma *folio_anon_vma(struct folio *folio)
 {
 	unsigned long mapping = (unsigned long)folio->mapping;
-- 
2.25.1