linux-kernel - [PATCH] mm: zswap: fix zswap_never_enabled() for CONFIG

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Date: Sun, 30 Jun 2024 11:22:31 +1200
From: Barry Song <21cnbao@...il.com>
To: akpm@...ux-foundation.org,
	linux-mm@...ck.org
Cc: linux-kernel@...r.kernel.org,
	Barry Song <v-songbaohua@...o.com>,
	Yosry Ahmed <yosryahmed@...gle.com>,
	Nhat Pham <nphamcs@...il.com>,
	Chengming Zhou <chengming.zhou@...ux.dev>,
	Chris Li <chrisl@...nel.org>,
	David Hildenbrand <david@...hat.com>,
	Johannes Weiner <hannes@...xchg.org>,
	Matthew Wilcox <willy@...radead.org>
Subject: [PATCH] mm: zswap: fix zswap_never_enabled() for CONFIG_ZSWAP==N

From: Barry Song <v-songbaohua@...o.com>

If CONFIG_ZSWAP is set to N, it means zswap cannot be enabled.
zswap_never_enabled() should return true.

Fixes: 0300e17d67c3 ("mm: zswap: add zswap_never_enabled()")
Signed-off-by: Barry Song <v-songbaohua@...o.com>
Cc: Yosry Ahmed <yosryahmed@...gle.com>
Cc: Nhat Pham <nphamcs@...il.com>
Cc: Chengming Zhou <chengming.zhou@...ux.dev>
Cc: Chris Li <chrisl@...nel.org>
Cc: David Hildenbrand <david@...hat.com>
Cc: Johannes Weiner <hannes@...xchg.org>
Cc: Matthew Wilcox (Oracle) <willy@...radead.org>
---
 include/linux/zswap.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/zswap.h b/include/linux/zswap.h
index bf83ae5e285d..6cecb4a4f68b 100644
--- a/include/linux/zswap.h
+++ b/include/linux/zswap.h
@@ -68,7 +68,7 @@ static inline bool zswap_is_enabled(void)
 
 static inline bool zswap_never_enabled(void)
 {
-	return false;
+	return true;
 }
 
 #endif
-- 
2.34.1