linux-kernel - [PATCH 04/15] mm/z3fold: use zpdesc in get/put_z3fold

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Date: Fri, 21 Jun 2024 13:46:44 +0800
From: alexs@...nel.org
To: Vitaly Wool <vitaly.wool@...sulko.com>,
	Miaohe Lin <linmiaohe@...wei.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org,
	linux-mm@...ck.org,
	minchan@...nel.org,
	willy@...radead.org,
	senozhatsky@...omium.org,
	david@...hat.com,
	42.hyeyoo@...il.com
Cc: Alex Shi <alexs@...nel.org>
Subject: [PATCH 04/15] mm/z3fold: use zpdesc in get/put_z3fold_header funcs

From: Alex Shi <alexs@...nel.org>

Convert the get/put_z3fold_header funcs pair to use zpdesc.

Signed-off-by: Alex Shi <alexs@...nel.org>
---
 mm/z3fold.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/mm/z3fold.c b/mm/z3fold.c
index 5cb156fc03be..bfbc9f9fdfd4 100644
--- a/mm/z3fold.c
+++ b/mm/z3fold.c
@@ -254,9 +254,9 @@ static inline struct z3fold_header *get_z3fold_header(unsigned long handle)
 			locked = z3fold_page_trylock(zhdr);
 			read_unlock(&slots->lock);
 			if (locked) {
-				struct page *page = virt_to_page(zhdr);
+				struct zpdesc *zpdesc = page_zpdesc(virt_to_page(zhdr));
 
-				if (!test_bit(PAGE_MIGRATED, &page->private))
+				if (!test_bit(PAGE_MIGRATED, &zpdesc->zppage_flag))
 					break;
 				z3fold_page_unlock(zhdr);
 			}
@@ -271,9 +271,9 @@ static inline struct z3fold_header *get_z3fold_header(unsigned long handle)
 
 static inline void put_z3fold_header(struct z3fold_header *zhdr)
 {
-	struct page *page = virt_to_page(zhdr);
+	struct zpdesc *zpdesc = page_zpdesc(virt_to_page(zhdr));
 
-	if (!test_bit(PAGE_HEADLESS, &page->private))
+	if (!test_bit(PAGE_HEADLESS, &zpdesc->zppage_flag))
 		z3fold_page_unlock(zhdr);
 }
 
-- 
2.43.0