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-rw-r--r--mm/page_alloc.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 7c3f8d7e2d8e..f7cc08dad26a 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -6008,6 +6008,17 @@ bool has_unmovable_pages(struct zone *zone, struct page *page, int count,
continue;
page = pfn_to_page(check);
+
+ /*
+ * Hugepages are not in LRU lists, but they're movable.
+ * We need not scan over tail pages bacause we don't
+ * handle each tail page individually in migration.
+ */
+ if (PageHuge(page)) {
+ iter = round_up(iter + 1, 1<<compound_order(page)) - 1;
+ continue;
+ }
+
/*
* We can't use page_count without pin a page
* because another CPU can free compound page.