The quilt patch titled
Subject: ksm: use a folio in replace_page()
has been removed from the -mm tree. Its filename was
ksm-use-a-folio-in-replace_page.patch
This patch was dropped because it was merged into the mm-stable branch
of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
------------------------------------------------------
From: "Matthew Wilcox (Oracle)" <willy@xxxxxxxxxxxxx>
Subject: ksm: use a folio in replace_page()
Date: Fri, 2 Sep 2022 20:46:41 +0100
Replace three calls to compound_head() with one.
Link: https://lkml.kernel.org/r/20220902194653.1739778-46-willy@xxxxxxxxxxxxx
Signed-off-by: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/ksm.c | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)
--- a/mm/ksm.c~ksm-use-a-folio-in-replace_page
+++ a/mm/ksm.c
@@ -1110,6 +1110,7 @@ static int replace_page(struct vm_area_s
struct page *kpage, pte_t orig_pte)
{
struct mm_struct *mm = vma->vm_mm;
+ struct folio *folio;
pmd_t *pmd;
pmd_t pmde;
pte_t *ptep;
@@ -1178,10 +1179,11 @@ static int replace_page(struct vm_area_s
ptep_clear_flush(vma, addr, ptep);
set_pte_at_notify(mm, addr, ptep, newpte);
+ folio = page_folio(page);
page_remove_rmap(page, vma, false);
- if (!page_mapped(page))
- try_to_free_swap(page);
- put_page(page);
+ if (!folio_mapped(folio))
+ folio_free_swap(folio);
+ folio_put(folio);
pte_unmap_unlock(ptep, ptl);
err = 0;
_
Patches currently in -mm which might be from willy@xxxxxxxxxxxxx are
