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-rw-r--r--mm/hugetlb.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index 0f580ea7f41d..949d80609a32 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -1031,8 +1031,8 @@ static int __alloc_gigantic_page(unsigned long start_pfn,
return alloc_contig_range(start_pfn, end_pfn, MIGRATE_MOVABLE);
}
-static bool pfn_range_valid_gigantic(unsigned long start_pfn,
- unsigned long nr_pages)
+static bool pfn_range_valid_gigantic(struct zone *z,
+ unsigned long start_pfn, unsigned long nr_pages)
{
unsigned long i, end_pfn = start_pfn + nr_pages;
struct page *page;
@@ -1043,6 +1043,9 @@ static bool pfn_range_valid_gigantic(unsigned long start_pfn,
page = pfn_to_page(i);
+ if (page_zone(page) != z)
+ return false;
+
if (PageReserved(page))
return false;
@@ -1075,7 +1078,7 @@ static struct page *alloc_gigantic_page(int nid, unsigned int order)
pfn = ALIGN(z->zone_start_pfn, nr_pages);
while (zone_spans_last_pfn(z, pfn, nr_pages)) {
- if (pfn_range_valid_gigantic(pfn, nr_pages)) {
+ if (pfn_range_valid_gigantic(z, pfn, nr_pages)) {
/*
* We release the zone lock here because
* alloc_contig_range() will also lock the zone