linux-kernel - [PATCH v2 14/16] mm/page_alloc: use costly_order in WARN_ON_ONCE

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Message-ID: <20220916072257.9639-15-linmiaohe@huawei.com>
Date:   Fri, 16 Sep 2022 15:22:55 +0800
From:   Miaohe Lin <linmiaohe@...wei.com>
To:     <akpm@...ux-foundation.org>, <david@...hat.com>,
        <osalvador@...e.de>, <anshuman.khandual@....com>
CC:     <willy@...radead.org>, <linux-mm@...ck.org>,
        <linux-kernel@...r.kernel.org>, <linmiaohe@...wei.com>
Subject: [PATCH v2 14/16] mm/page_alloc: use costly_order in WARN_ON_ONCE_GFP()

There's no need to check whether order > PAGE_ALLOC_COSTLY_ORDER again.
Minor readability improvement.

Signed-off-by: Miaohe Lin <linmiaohe@...wei.com>
Reviewed-by: David Hildenbrand <david@...hat.com>
Reviewed-by: Anshuman Khandual <anshuman.khandual@....com>
Reviewed-by: Oscar Salvador <osalvador@...e.de>
---
 mm/page_alloc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 652b3d766003..3d2ad5c197d5 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -5272,7 +5272,7 @@ __alloc_pages_slowpath(gfp_t gfp_mask, unsigned int order,
 		 * so that we can identify them and convert them to something
 		 * else.
 		 */
-		WARN_ON_ONCE_GFP(order > PAGE_ALLOC_COSTLY_ORDER, gfp_mask);
+		WARN_ON_ONCE_GFP(costly_order, gfp_mask);
 
 		/*
 		 * Help non-failing allocations by giving them access to memory
-- 
2.23.0