linux-kernel - [PATCH] mm: zswap: remove unnecessary check in zswap_find

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Date: Mon, 11 Mar 2024 23:52:10 +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>, linux-mm@...ck.org, linux-kernel@...r.kernel.org, 
	Yosry Ahmed <yosryahmed@...gle.com>
Subject: [PATCH] mm: zswap: remove unnecessary check in zswap_find_zpool()

zswap_find_zpool() checks if ZSWAP_NR_ZPOOLS > 1, which is always true.
This is a remnant from a patch version that had ZSWAP_NR_ZPOOLS as a
config option and never made it upstream. Remove the unnecessary check.

Signed-off-by: Yosry Ahmed <yosryahmed@...gle.com>
---
 mm/zswap.c | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/mm/zswap.c b/mm/zswap.c
index 9a32377520827..c6267b5e0999a 100644
--- a/mm/zswap.c
+++ b/mm/zswap.c
@@ -884,12 +884,7 @@ static void zswap_entry_cache_free(struct zswap_entry *entry)
 
 static struct zpool *zswap_find_zpool(struct zswap_entry *entry)
 {
-	int i = 0;
-
-	if (ZSWAP_NR_ZPOOLS > 1)
-		i = hash_ptr(entry, ilog2(ZSWAP_NR_ZPOOLS));
-
-	return entry->pool->zpools[i];
+	return entry->pool->zpools[hash_ptr(entry, ilog2(ZSWAP_NR_ZPOOLS))];
 }
 
 /*
-- 
2.44.0.278.ge034bb2e1d-goog