linux-kernel - [PATCH 5/6] hugetlb_cgroup: use helper macro NUMA_NO

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Message-ID: <20220728121949.20985-6-linmiaohe@huawei.com>
Date:   Thu, 28 Jul 2022 20:19:48 +0800
From:   Miaohe Lin <linmiaohe@...wei.com>
To:     <akpm@...ux-foundation.org>
CC:     <mike.kravetz@...cle.com>, <almasrymina@...gle.com>,
        <linux-mm@...ck.org>, <linux-kernel@...r.kernel.org>,
        <linmiaohe@...wei.com>
Subject: [PATCH 5/6] hugetlb_cgroup: use helper macro NUMA_NO_NODE

It's better to use NUMA_NO_NODE instead of magic number -1. Minor
readability improvement.

Signed-off-by: Miaohe Lin <linmiaohe@...wei.com>
---
 mm/hugetlb_cgroup.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/mm/hugetlb_cgroup.c b/mm/hugetlb_cgroup.c
index 7e0bca52c40f..13ec091385af 100644
--- a/mm/hugetlb_cgroup.c
+++ b/mm/hugetlb_cgroup.c
@@ -153,9 +153,9 @@ hugetlb_cgroup_css_alloc(struct cgroup_subsys_state *parent_css)
 	 * function.
 	 */
 	for_each_node(node) {
-		/* Set node_to_alloc to -1 for offline nodes. */
+		/* Set node_to_alloc to NUMA_NO_NODE for offline nodes. */
 		int node_to_alloc =
-			node_state(node, N_NORMAL_MEMORY) ? node : -1;
+			node_state(node, N_NORMAL_MEMORY) ? node : NUMA_NO_NODE;
 		h_cgroup->nodeinfo[node] =
 			kzalloc_node(sizeof(struct hugetlb_cgroup_per_node),
 				     GFP_KERNEL, node_to_alloc);
-- 
2.23.0