linux-kernel - [PATCH 10/15] mm/z3fold: use zpdesc in __z3fold

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Date: Fri, 21 Jun 2024 13:46:50 +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 10/15] mm/z3fold: use zpdesc in __z3fold_alloc

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

The main purpose is converting page->private to zpdesc->zppage_flag.

Signed-off-by: Alex Shi <alexs@...nel.org>
---
 mm/z3fold.c | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/mm/z3fold.c b/mm/z3fold.c
index 3d36448885c9..f164eb4e1139 100644
--- a/mm/z3fold.c
+++ b/mm/z3fold.c
@@ -790,7 +790,7 @@ static inline struct z3fold_header *__z3fold_alloc(struct z3fold_pool *pool,
 						size_t size, bool can_sleep)
 {
 	struct z3fold_header *zhdr = NULL;
-	struct page *page;
+	struct zpdesc *zpdesc;
 	struct list_head *unbuddied;
 	int chunks = size_to_chunks(size), i;
 
@@ -823,9 +823,9 @@ static inline struct z3fold_header *__z3fold_alloc(struct z3fold_pool *pool,
 		zhdr->cpu = -1;
 		spin_unlock(&pool->lock);
 
-		page = virt_to_page(zhdr);
-		if (test_bit(NEEDS_COMPACTING, &page->private) ||
-		    test_bit(PAGE_CLAIMED, &page->private)) {
+		zpdesc = page_zpdesc(virt_to_page(zhdr));
+		if (test_bit(NEEDS_COMPACTING, &zpdesc->zppage_flag) ||
+		    test_bit(PAGE_CLAIMED, &zpdesc->zppage_flag)) {
 			z3fold_page_unlock(zhdr);
 			zhdr = NULL;
 			migrate_enable();
@@ -868,9 +868,9 @@ static inline struct z3fold_header *__z3fold_alloc(struct z3fold_pool *pool,
 			zhdr->cpu = -1;
 			spin_unlock(&pool->lock);
 
-			page = virt_to_page(zhdr);
-			if (test_bit(NEEDS_COMPACTING, &page->private) ||
-			    test_bit(PAGE_CLAIMED, &page->private)) {
+			zpdesc = page_zpdesc(virt_to_page(zhdr));
+			if (test_bit(NEEDS_COMPACTING, &zpdesc->zppage_flag) ||
+			    test_bit(PAGE_CLAIMED, &zpdesc->zppage_flag)) {
 				z3fold_page_unlock(zhdr);
 				zhdr = NULL;
 				if (can_sleep)
-- 
2.43.0