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mm: use for_each_online_node and node_online instead of open coding 

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/20220429030218.644635-1-liupeng256@huawei.com
Signed-off-by: Peng Liu <liupeng256@huawei.com>
Suggested-by: Davidlohr Bueso <dave@stgolabs.net>
Suggested-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Muchun Song <songmuchun@bytedance.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Peng Liu 2022-04-29 14:36:58 -07:00 committed by akpm
parent f81f6e4b5e
commit 30a514002d
3 changed files with 4 additions and 4 deletions
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2
arch/ia64/kernel/uncached.c
View File

@ -261,7 +261,7 @@ static int __init uncached_init(void)
{ {
int nid; int nid;
for_each_node_state(nid, N_ONLINE) { for_each_online_node(nid) {
uncached_pools[nid].pool = gen_pool_create(PAGE_SHIFT, nid); uncached_pools[nid].pool = gen_pool_create(PAGE_SHIFT, nid);
mutex_init(&uncached_pools[nid].add_chunk_mutex); mutex_init(&uncached_pools[nid].add_chunk_mutex);
} }

4
mm/hugetlb.c
View File

@ -6971,7 +6971,7 @@ void __init hugetlb_cma_reserve(int order)
if (hugetlb_cma_size_in_node[nid] == 0) if (hugetlb_cma_size_in_node[nid] == 0)
continue; continue;
if (!node_state(nid, N_ONLINE)) { if (!node_online(nid)) {
pr_warn("hugetlb_cma: invalid node %d specified\n", nid); pr_warn("hugetlb_cma: invalid node %d specified\n", nid);
hugetlb_cma_size -= hugetlb_cma_size_in_node[nid]; hugetlb_cma_size -= hugetlb_cma_size_in_node[nid];
hugetlb_cma_size_in_node[nid] = 0; hugetlb_cma_size_in_node[nid] = 0;
@ -7010,7 +7010,7 @@ void __init hugetlb_cma_reserve(int order)
} }
reserved = 0; reserved = 0;
for_each_node_state(nid, N_ONLINE) { for_each_online_node(nid) {
int res; int res;
char name[CMA_MAX_NAME]; char name[CMA_MAX_NAME];

2
mm/page_ext.c
View File

@ -320,7 +320,7 @@ static int __meminit online_page_ext(unsigned long start_pfn,
* online__pages(), and start_pfn should exist. * online__pages(), and start_pfn should exist.
*/ */
nid = pfn_to_nid(start_pfn); nid = pfn_to_nid(start_pfn);
VM_BUG_ON(!node_state(nid, N_ONLINE)); VM_BUG_ON(!node_online(nid));
} }
for (pfn = start; !fail && pfn < end; pfn += PAGES_PER_SECTION) for (pfn = start; !fail && pfn < end; pfn += PAGES_PER_SECTION)