From: Matthew Wilcox (Oracle) <willy@infradead.org>
Date: Thu, 6 Jul 2023 19:52:51 +0000 (+0100)
Subject: rmap: pass the folio to __page_check_anon_rmap()
X-Git-Tag: v6.6.7~1970^2~443
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=dba438bd7663fefab870a6dd4b01ed0923c32d79;p=platform%2Fkernel%2Flinux-starfive.git

rmap: pass the folio to __page_check_anon_rmap()

The lone caller already has the folio, so pass it in instead of deriving
it from the page again.

Link: https://lkml.kernel.org/r/20230706195251.2707542-1-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

diff --git a/mm/rmap.c b/mm/rmap.c
index 0c0d885..2668f5e 100644
--- a/mm/rmap.c
+++ b/mm/rmap.c
@@ -1175,14 +1175,14 @@ out:
 
 /**
  * __page_check_anon_rmap - sanity check anonymous rmap addition
- * @page:	the page to add the mapping to
+ * @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 page *page,
+static void __page_check_anon_rmap(struct folio *folio, struct page *page,
 	struct vm_area_struct *vma, unsigned long address)
 {
-	struct folio *folio = page_folio(page);
 	/*
 	 * The page's anon-rmap details (mapping and index) are guaranteed to
 	 * be set up correctly at this point.
@@ -1262,7 +1262,7 @@ void page_add_anon_rmap(struct page *page, struct vm_area_struct *vma,
 			__page_set_anon_rmap(folio, page, vma, address,
 					     !!(flags & RMAP_EXCLUSIVE));
 		else
-			__page_check_anon_rmap(page, vma, address);
+			__page_check_anon_rmap(folio, page, vma, address);
 	}
 
 	mlock_vma_folio(folio, vma, compound);