+ mm-memory-convert-page_copy_prealloc-to-use-a-folio.patch added to mm-unstable branch

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The patch titled
     Subject: mm: memory: convert page_copy_prealloc() to use a folio
has been added to the -mm mm-unstable branch.  Its filename is
     mm-memory-convert-page_copy_prealloc-to-use-a-folio.patch

This patch will shortly appear at
     https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-memory-convert-page_copy_prealloc-to-use-a-folio.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: Kefeng Wang <wangkefeng.wang@xxxxxxxxxx>
Subject: mm: memory: convert page_copy_prealloc() to use a folio
Date: Thu, 12 Jan 2023 16:30:03 +0800

The page functions are converted to corresponding to folio functions in
page_copy_prealloc().

Link: https://lkml.kernel.org/r/20230112083006.163393-5-wangkefeng.wang@xxxxxxxxxx
Signed-off-by: Kefeng Wang <wangkefeng.wang@xxxxxxxxxx>
Cc: Matthew Wilcox <willy@xxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---

 mm/memory.c |   14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

--- a/mm/memory.c~mm-memory-convert-page_copy_prealloc-to-use-a-folio
+++ a/mm/memory.c
@@ -958,19 +958,19 @@ static inline struct page *
 page_copy_prealloc(struct mm_struct *src_mm, struct vm_area_struct *vma,
 		   unsigned long addr)
 {
-	struct page *new_page;
+	struct folio *new_folio;
 
-	new_page = alloc_page_vma(GFP_HIGHUSER_MOVABLE, vma, addr);
-	if (!new_page)
+	new_folio = vma_alloc_folio(GFP_HIGHUSER_MOVABLE, 0, vma, addr, false);
+	if (!new_folio)
 		return NULL;
 
-	if (mem_cgroup_charge(page_folio(new_page), src_mm, GFP_KERNEL)) {
-		put_page(new_page);
+	if (mem_cgroup_charge(new_folio, src_mm, GFP_KERNEL)) {
+		folio_put(new_folio);
 		return NULL;
 	}
-	cgroup_throttle_swaprate(new_page, GFP_KERNEL);
+	folio_throttle_swaprate(new_folio, GFP_KERNEL);
 
-	return new_page;
+	return &new_folio->page;
 }
 
 static int
_

Patches currently in -mm which might be from wangkefeng.wang@xxxxxxxxxx are

mm-hwposion-support-recovery-from-ksm_might_need_to_copy.patch
mm-hwposion-support-recovery-from-ksm_might_need_to_copy-v3.patch
mm-huge_memory-convert-madvise_free_huge_pmd-to-use-a-folio.patch
mm-swap-convert-mark_page_lazyfree-to-folio_mark_lazyfree.patch
mm-huge_memory-convert-split_huge_pages_all-to-use-a-folio.patch
mm-page_idle-convert-page-idle-to-use-a-folio.patch
mm-damon-introduce-damon_get_folio.patch
mm-damon-convert-damon_ptep-pmdp_mkold-to-use-a-folio.patch
mm-damon-paddr-convert-damon_pa_-to-use-a-folio.patch
mm-damon-vaddr-convert-damon_young_pmd_entry-to-use-a-folio.patch
mm-damon-remove-unneeded-damon_get_page.patch
mm-damon-vaddr-convert-hugetlb-related-functions-to-use-a-folio.patch
mm-madvise-use-vm_normal_folio-in-madvise_free_pte_range.patch
mm-huge_memory-make-__do_huge_pmd_anonymous_page-to-take-a-folio.patch
mm-memory-convert-do_anonymous_page-to-use-a-folio.patch
mm-memory-convert-do_cow_fault-to-use-folios.patch
mm-memory-convert-page_copy_prealloc-to-use-a-folio.patch
mm-memory-convert-wp_page_copy-to-use-folios.patch
mm-memory-use-folio_throttle_swaprate-in-do_swap_page.patch
mm-swap-remove-unneeded-cgroup_throttle_swaprate.patch




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