diff --git a/mm/gup.c b/mm/gup.c
index 7b21fcda3a98..1cc3240e4900 100644
--- a/mm/gup.c
+++ b/mm/gup.c
@@ -2842,11 +2842,6 @@ static int gup_hugepte(pte_t *ptep, unsigned long sz, unsigned long addr,
 		return 0;
 	}
 
-	if (!gup_fast_folio_allowed(folio, flags)) {
-		gup_put_folio(folio, refs, flags);
-		return 0;
-	}
-
 	if (!pte_write(pte) && gup_must_unshare(NULL, flags, &folio->page)) {
 		gup_put_folio(folio, refs, flags);
 		return 0;
@@ -2857,6 +2852,14 @@ static int gup_hugepte(pte_t *ptep, unsigned long sz, unsigned long addr,
 	return 1;
 }
 
+/*
+ * NOTE: currently GUP for a hugepd is only possible on hugetlbfs file
+ * systems on Power, which does not have issue with folio writeback against
+ * GUP updates.  When hugepd will be extended to support non-hugetlbfs or
+ * even anonymous memory, we need to do extra check as what we do with most
+ * of the other folios. See writable_file_mapping_allowed() and
+ * gup_fast_folio_allowed() for more information.
+ */
 static int gup_huge_pd(hugepd_t hugepd, unsigned long addr,
 		unsigned int pdshift, unsigned long end, unsigned int flags,
 		struct page **pages, int *nr)