The patch titled
Subject: rmap: pass the folio to __page_check_anon_rmap()
has been added to the -mm mm-unstable branch. Its filename is
rmap-pass-the-folio-to-__page_check_anon_rmap.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/rmap-pass-the-folio-to-__page_check_anon_rmap.patch
This patch will later appear in the mm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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------------------------------------------------------
From: "Matthew Wilcox (Oracle)" <willy@xxxxxxxxxxxxx>
Subject: rmap: pass the folio to __page_check_anon_rmap()
Date: Thu, 6 Jul 2023 20:52:51 +0100
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@xxxxxxxxxxxxx
Signed-off-by: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/rmap.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
--- a/mm/rmap.c~rmap-pass-the-folio-to-__page_check_anon_rmap
+++ a/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 *pag
__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);
_
Patches currently in -mm which might be from willy@xxxxxxxxxxxxx are
writeback-account-the-number-of-pages-written-back.patch
rmap-pass-the-folio-to-__page_check_anon_rmap.patch
