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From:   Miaohe Lin <linmiaohe@huawei.com>
To:     <akpm@linux-foundation.org>
CC:     <mike.kravetz@oracle.com>, <almasrymina@google.com>,
        <linux-mm@kvack.org>, <linux-kernel@vger.kernel.org>,
        <linmiaohe@huawei.com>
Subject: [PATCH 1/6] hugetlb_cgroup: remove unneeded nr_pages > 0 check
Date:   Thu, 28 Jul 2022 20:19:44 +0800
Message-ID: <20220728121949.20985-2-linmiaohe@huawei.com>
In-Reply-To: <20220728121949.20985-1-linmiaohe@huawei.com>
References: <20220728121949.20985-1-linmiaohe@huawei.com>
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When code reaches here, nr_pages must be > 0. Remove unneeded nr_pages > 0
check to simplify the code.

Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
---
 mm/hugetlb_cgroup.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/hugetlb_cgroup.c b/mm/hugetlb_cgroup.c
index c86691c431fd..d16eb00c947d 100644
--- a/mm/hugetlb_cgroup.c
+++ b/mm/hugetlb_cgroup.c
@@ -442,7 +442,7 @@ void hugetlb_cgroup_uncharge_file_region(struct resv_map *resv,
 	if (hugetlb_cgroup_disabled() || !resv || !rg || !nr_pages)
 		return;
 
-	if (rg->reservation_counter && resv->pages_per_hpage && nr_pages > 0 &&
+	if (rg->reservation_counter && resv->pages_per_hpage &&
 	    !resv->reservation_counter) {
 		page_counter_uncharge(rg->reservation_counter,
 				      nr_pages * resv->pages_per_hpage);
-- 
2.23.0