From 5e6b1bf1b5c3c8b72fa2eea9d8731d5c59773945 Mon Sep 17 00:00:00 2001 From: Miaohe Lin Date: Thu, 1 Sep 2022 20:00:29 +0800 Subject: [PATCH] hugetlb: remove meaningless BUG_ON(huge_pte_none()) When code reaches here, invalid page would have been accessed if huge pte is none. So this BUG_ON(huge_pte_none()) is meaningless. Remove it. Link: https://lkml.kernel.org/r/20220901120030.63318-10-linmiaohe@huawei.com Signed-off-by: Miaohe Lin Reviewed-by: Muchun Song Cc: Mike Kravetz Signed-off-by: Andrew Morton --- mm/hugetlb.c | 1 - 1 file changed, 1 deletion(-) diff --git a/mm/hugetlb.c b/mm/hugetlb.c index fe7b69a970aa7..46387208fd9dd 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -5345,7 +5345,6 @@ retry_avoidcopy: u32 hash; put_page(old_page); - BUG_ON(huge_pte_none(pte)); /* * Drop hugetlb_fault_mutex and i_mmap_rwsem before * unmapping. unmapping needs to hold i_mmap_rwsem -- 2.30.2