linux-kernel - [PATCH -next 4/7] mm: memory: convert page_copy

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Date:   Thu, 12 Jan 2023 16:30:03 +0800
From:   Kefeng Wang <wangkefeng.wang@...wei.com>
To:     <akpm@...ux-foundation.org>, <willy@...radead.org>,
        <linux-mm@...ck.org>
CC:     <linux-kernel@...r.kernel.org>,
        Kefeng Wang <wangkefeng.wang@...wei.com>
Subject: [PATCH -next 4/7] mm: memory: convert page_copy_prealloc() to use a folio

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

Signed-off-by: Kefeng Wang <wangkefeng.wang@...wei.com>
---
 mm/memory.c | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/mm/memory.c b/mm/memory.c
index f29bca499e0d..b66c425b4d7c 100644
--- a/mm/memory.c
+++ b/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
-- 
2.35.3