linux-kernel - [PATCH] mm/rmap: convert __page_check_anon

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Message-Id: <20230915101731.1725986-1-yajun.deng@linux.dev>
Date:   Fri, 15 Sep 2023 18:17:31 +0800
From:   Yajun Deng <yajun.deng@...ux.dev>
To:     akpm@...ux-foundation.org
Cc:     linux-mm@...ck.org, linux-kernel@...r.kernel.org,
        Yajun Deng <yajun.deng@...ux.dev>
Subject: [PATCH] mm/rmap: convert __page_check_anon_rmap() to folio

The parameter page in __page_check_anon_rmap() is redundant. Remove it,
and convert __page_check_anon_rmap() to __folio_check_anon_rmap().

Signed-off-by: Yajun Deng <yajun.deng@...ux.dev>
---
 mm/rmap.c | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/mm/rmap.c b/mm/rmap.c
index 789a2beb8b3a..520607f4d91c 100644
--- a/mm/rmap.c
+++ b/mm/rmap.c
@@ -1154,13 +1154,12 @@ static void __folio_set_anon(struct folio *folio, struct vm_area_struct *vma,
 }
 
 /**
- * __page_check_anon_rmap - sanity check anonymous rmap addition
+ * __folio_check_anon_rmap - sanity check anonymous rmap addition
  * @folio:	The folio containing @page.
- * @page:	the page to check the mapping of
  * @vma:	the vm area in which the mapping is added
  * @address:	the user virtual address mapped
  */
-static void __page_check_anon_rmap(struct folio *folio, struct page *page,
+static void __folio_check_anon_rmap(struct folio *folio,
 	struct vm_area_struct *vma, unsigned long address)
 {
 	/*
@@ -1176,8 +1175,8 @@ static void __page_check_anon_rmap(struct folio *folio, struct page *page,
 	 */
 	VM_BUG_ON_FOLIO(folio_anon_vma(folio)->root != vma->anon_vma->root,
 			folio);
-	VM_BUG_ON_PAGE(page_to_pgoff(page) != linear_page_index(vma, address),
-		       page);
+	VM_BUG_ON_FOLIO(folio_pgoff(folio) != linear_page_index(vma, address),
+		       folio);
 }
 
 /**
@@ -1245,7 +1244,7 @@ void page_add_anon_rmap(struct page *page, struct vm_area_struct *vma,
 		__folio_set_anon(folio, vma, address,
 				 !!(flags & RMAP_EXCLUSIVE));
 	} else if (likely(!folio_test_ksm(folio))) {
-		__page_check_anon_rmap(folio, page, vma, address);
+		__folio_check_anon_rmap(folio, vma, address);
 	}
 	if (flags & RMAP_EXCLUSIVE)
 		SetPageAnonExclusive(page);
-- 
2.25.1