From: Miaohe Lin <linmiaohe@huawei.com>
To: <akpm@linux-foundation.org>, <cl@linux.com>, <penberg@kernel.org>,
<rientjes@google.com>, <iamjoonsoo.kim@lge.com>, <vbabka@suse.cz>
Cc: <linux-mm@kvack.org>, <linux-kernel@vger.kernel.org>,
<linmiaohe@huawei.com>
Subject: [PATCH] mm/slab_common: use helper function is_power_of_2()
Date: Thu, 17 Feb 2022 17:16:09 +0800 [thread overview]
Message-ID: <20220217091609.8214-1-linmiaohe@huawei.com> (raw)
Use helper function is_power_of_2() to check if KMALLOC_MIN_SIZE is power
of two. Minor readability improvement.
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
---
mm/slab_common.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mm/slab_common.c b/mm/slab_common.c
index 23f2ab0713b7..6ee64d6208b3 100644
--- a/mm/slab_common.c
+++ b/mm/slab_common.c
@@ -807,7 +807,7 @@ void __init setup_kmalloc_cache_index_table(void)
unsigned int i;
BUILD_BUG_ON(KMALLOC_MIN_SIZE > 256 ||
- (KMALLOC_MIN_SIZE & (KMALLOC_MIN_SIZE - 1)));
+ !is_power_of_2(KMALLOC_MIN_SIZE));
for (i = 8; i < KMALLOC_MIN_SIZE; i += 8) {
unsigned int elem = size_index_elem(i);
--
2.23.0
next reply other threads:[~2022-02-17 9:16 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-02-17 9:16 Miaohe Lin [this message]
2022-02-17 9:23 ` Vlastimil Babka
2022-02-17 10:44 ` Miaohe Lin
2022-02-17 17:04 ` Vlastimil Babka
2022-02-18 1:15 ` Miaohe Lin
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