[merged mm-stable] mm-ksm-page_add_anon_rmap-folio_add_anon_rmap_pte.patch removed from -mm tree

[merged mm-stable] mm-ksm-page_add_anon_rmap-folio_add_anon_rmap_pte.patch removed from -mm tree

[Andrew Morton]

The quilt patch titled
     Subject: mm/ksm: page_add_anon_rmap() -> folio_add_anon_rmap_pte()
has been removed from the -mm tree.  Its filename was
     mm-ksm-page_add_anon_rmap-folio_add_anon_rmap_pte.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: David Hildenbrand <david@redhat.com>
Subject: mm/ksm: page_add_anon_rmap() -> folio_add_anon_rmap_pte()
Date: Wed, 20 Dec 2023 23:44:42 +0100

Let's convert replace_page().  While at it, perform some folio conversion.

Link: https://lkml.kernel.org/r/20231220224504.646757-19-david@redhat.com
Signed-off-by: David Hildenbrand <david@redhat.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Muchun Song <muchun.song@linux.dev>
Cc: Muchun Song <songmuchun@bytedance.com>
Cc: Peter Xu <peterx@redhat.com>
Cc: Ryan Roberts <ryan.roberts@arm.com>
Cc: Yin Fengwei <fengwei.yin@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 mm/ksm.c |    8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

--- a/mm/ksm.c~mm-ksm-page_add_anon_rmap-folio_add_anon_rmap_pte
+++ a/mm/ksm.c
@@ -1369,6 +1369,7 @@ out:
 static int replace_page(struct vm_area_struct *vma, struct page *page,
 			struct page *kpage, pte_t orig_pte)
 {
+	struct folio *kfolio = page_folio(kpage);
 	struct mm_struct *mm = vma->vm_mm;
 	struct folio *folio;
 	pmd_t *pmd;
@@ -1408,15 +1409,16 @@ static int replace_page(struct vm_area_s
 		goto out_mn;
 	}
 	VM_BUG_ON_PAGE(PageAnonExclusive(page), page);
-	VM_BUG_ON_PAGE(PageAnon(kpage) && PageAnonExclusive(kpage), kpage);
+	VM_BUG_ON_FOLIO(folio_test_anon(kfolio) && PageAnonExclusive(kpage),
+			kfolio);
 
 	/*
 	 * No need to check ksm_use_zero_pages here: we can only have a
 	 * zero_page here if ksm_use_zero_pages was enabled already.
 	 */
 	if (!is_zero_pfn(page_to_pfn(kpage))) {
-		get_page(kpage);
-		page_add_anon_rmap(kpage, vma, addr, RMAP_NONE);
+		folio_get(kfolio);
+		folio_add_anon_rmap_pte(kfolio, kpage, vma, addr, RMAP_NONE);
 		newpte = mk_pte(kpage, vma->vm_page_prot);
 	} else {
 		/*
_

Patches currently in -mm which might be from david@redhat.com are