From: Peng Liu <liupeng256@huawei.com>
Subject: hugetlb: clean up hugetlb_cma_reserve

Use more generic functions to deal with issues related to online nodes. 
The changes will make the code simplified.

Link: https://lkml.kernel.org/r/20220413032915.251254-5-liupeng256@huawei.com
Signed-off-by: Peng Liu <liupeng256@huawei.com>
Reviewed-by: Baolin Wang <baolin.wang@linux.alibaba.com>
Reviewed-by: Muchun Song <songmuchun@bytedance.com>
Reviewed-by: Davidlohr Bueso <dave@stgolabs.net>
Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Liu Yuntao <liuyuntao10@huawei.com>
Cc: Zhenguo Yao <yaozhenguo1@gmail.com>
Cc: Kefeng Wang <wangkefeng.wang@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 mm/hugetlb.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/mm/hugetlb.c~hugetlb-clean-up-hugetlb_cma_reserve
+++ a/mm/hugetlb.c
@@ -7026,7 +7026,7 @@ void __init hugetlb_cma_reserve(int orde
 		if (hugetlb_cma_size_in_node[nid] == 0)
 			continue;
 
-		if (!node_state(nid, N_ONLINE)) {
+		if (!node_online(nid)) {
 			pr_warn("hugetlb_cma: invalid node %d specified\n", nid);
 			hugetlb_cma_size -= hugetlb_cma_size_in_node[nid];
 			hugetlb_cma_size_in_node[nid] = 0;
@@ -7065,7 +7065,7 @@ void __init hugetlb_cma_reserve(int orde
 	}
 
 	reserved = 0;
-	for_each_node_state(nid, N_ONLINE) {
+	for_each_online_node(nid) {
 		int res;
 		char name[CMA_MAX_NAME];
 
_