linux-kernel - [PATCH 2/3] mm :zswap: use kmap_local_folio() in zswap

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Date: Fri, 24 May 2024 03:38:17 +0000
From: Yosry Ahmed <yosryahmed@...gle.com>
To: Andrew Morton <akpm@...ux-foundation.org>
Cc: Johannes Weiner <hannes@...xchg.org>, Nhat Pham <nphamcs@...il.com>, 
	Chengming Zhou <chengming.zhou@...ux.dev>, Matthew Wilcox <willy@...radead.org>, linux-mm@...ck.org, 
	linux-kernel@...r.kernel.org, Yosry Ahmed <yosryahmed@...gle.com>
Subject: [PATCH 2/3] mm :zswap: use kmap_local_folio() in zswap_load()

Eliminate the last explicit 'struct page' reference in mm/zswap.c.

Signed-off-by: Yosry Ahmed <yosryahmed@...gle.com>
---
 mm/zswap.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/mm/zswap.c b/mm/zswap.c
index 3693df96c81fe..bac66991fb14e 100644
--- a/mm/zswap.c
+++ b/mm/zswap.c
@@ -1551,7 +1551,6 @@ bool zswap_load(struct folio *folio)
 {
 	swp_entry_t swp = folio->swap;
 	pgoff_t offset = swp_offset(swp);
-	struct page *page = &folio->page;
 	bool swapcache = folio_test_swapcache(folio);
 	struct xarray *tree = swap_zswap_tree(swp);
 	struct zswap_entry *entry;
@@ -1582,7 +1581,7 @@ bool zswap_load(struct folio *folio)
 	if (entry->length)
 		zswap_decompress(entry, folio);
 	else {
-		dst = kmap_local_page(page);
+		dst = kmap_local_folio(folio, 0);
 		zswap_fill_page(dst, entry->value);
 		kunmap_local(dst);
 	}
-- 
2.45.1.288.g0e0cd299f1-goog