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Message-ID: <20230825190436.55045-2-mike.kravetz@oracle.com>
Date: Fri, 25 Aug 2023 12:04:21 -0700
From: Mike Kravetz <mike.kravetz@...cle.com>
To: linux-mm@...ck.org, linux-kernel@...r.kernel.org
Cc: Muchun Song <songmuchun@...edance.com>,
Joao Martins <joao.m.martins@...cle.com>,
Oscar Salvador <osalvador@...e.de>,
David Hildenbrand <david@...hat.com>,
Miaohe Lin <linmiaohe@...wei.com>,
David Rientjes <rientjes@...gle.com>,
Anshuman Khandual <anshuman.khandual@....com>,
Naoya Horiguchi <naoya.horiguchi@...ux.dev>,
Barry Song <song.bao.hua@...ilicon.com>,
Michal Hocko <mhocko@...e.com>,
Matthew Wilcox <willy@...radead.org>,
Xiongchun Duan <duanxiongchun@...edance.com>,
Andrew Morton <akpm@...ux-foundation.org>,
Mike Kravetz <mike.kravetz@...cle.com>
Subject: [PATCH 01/12] hugetlb: clear flags in tail pages that will be freed individually
Signed-off-by: Mike Kravetz <mike.kravetz@...cle.com>
---
mm/hugetlb.c | 11 +----------
1 file changed, 1 insertion(+), 10 deletions(-)
diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index 0bf70f27c1ba..ba6d39b71cb1 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -1489,6 +1489,7 @@ static void __destroy_compound_gigantic_folio(struct folio *folio,
for (i = 1; i < nr_pages; i++) {
p = folio_page(folio, i);
+ p->flags &= ~PAGE_FLAGS_CHECK_AT_FREE;
p->mapping = NULL;
clear_compound_head(p);
if (!demote)
@@ -1707,8 +1708,6 @@ static void add_hugetlb_folio(struct hstate *h, struct folio *folio,
static void __update_and_free_hugetlb_folio(struct hstate *h,
struct folio *folio)
{
- int i;
- struct page *subpage;
bool clear_dtor = folio_test_hugetlb_vmemmap_optimized(folio);
if (hstate_is_gigantic(h) && !gigantic_page_runtime_supported())
@@ -1750,14 +1749,6 @@ static void __update_and_free_hugetlb_folio(struct hstate *h,
spin_unlock_irq(&hugetlb_lock);
}
- for (i = 0; i < pages_per_huge_page(h); i++) {
- subpage = folio_page(folio, i);
- subpage->flags &= ~(1 << PG_locked | 1 << PG_error |
- 1 << PG_referenced | 1 << PG_dirty |
- 1 << PG_active | 1 << PG_private |
- 1 << PG_writeback);
- }
-
/*
* Non-gigantic pages demoted from CMA allocated gigantic pages
* need to be given back to CMA in free_gigantic_folio.
--
2.41.0
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