The quilt patch titled
Subject: hugetlb: remove meaningless BUG_ON(huge_pte_none())
has been removed from the -mm tree. Its filename was
hugetlb-remove-meaningless-bug_onhuge_pte_none.patch
This patch was dropped because it was merged into the mm-stable branch
of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
------------------------------------------------------
From: Miaohe Lin <linmiaohe@xxxxxxxxxx>
Subject: hugetlb: remove meaningless BUG_ON(huge_pte_none())
Date: Thu, 1 Sep 2022 20:00:29 +0800
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@xxxxxxxxxx
Signed-off-by: Miaohe Lin <linmiaohe@xxxxxxxxxx>
Reviewed-by: Muchun Song <songmuchun@xxxxxxxxxxxxx>
Cc: Mike Kravetz <mike.kravetz@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/hugetlb.c | 1 -
1 file changed, 1 deletion(-)
--- a/mm/hugetlb.c~hugetlb-remove-meaningless-bug_onhuge_pte_none
+++ a/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
_
Patches currently in -mm which might be from linmiaohe@xxxxxxxxxx are
mm-hwpoison-use-clearpagehwpoison-in-memory_failure.patch
mm-hwpoison-use-__pagemovable-to-detect-non-lru-movable-pages.patch
mm-hwpoison-use-num_poisoned_pages_sub-to-decrease-num_poisoned_pages.patch
mm-hwpoison-avoid-unneeded-page_mapped_in_vma-overhead-in-collect_procs_anon.patch
mm-hwpoison-check-pagetable-explicitly-in-hwpoison_user_mappings.patch
mm-hwpoison-cleanup-some-obsolete-comments.patch
writeback-remove-unused-macro-dirty_full_scope.patch
