From: peterx@redhat.com
To: linux-kernel@vger.kernel.org, linux-mm@kvack.org
Cc: Matthew Wilcox <willy@infradead.org>,
Christophe Leroy <christophe.leroy@csgroup.eu>,
Lorenzo Stoakes <lstoakes@gmail.com>,
David Hildenbrand <david@redhat.com>,
Vlastimil Babka <vbabka@suse.cz>,
Mike Kravetz <mike.kravetz@oracle.com>,
Mike Rapoport <rppt@kernel.org>,
Christoph Hellwig <hch@infradead.org>,
John Hubbard <jhubbard@nvidia.com>,
Andrew Jones <andrew.jones@linux.dev>,
linux-arm-kernel@lists.infradead.org,
Michael Ellerman <mpe@ellerman.id.au>,
"Kirill A . Shutemov" <kirill@shutemov.name>,
linuxppc-dev@lists.ozlabs.org, Rik van Riel <riel@surriel.com>,
linux-riscv@lists.infradead.org, Yang Shi <shy828301@gmail.com>,
James Houghton <jthoughton@google.com>,
"Aneesh Kumar K . V" <aneesh.kumar@kernel.org>,
Andrew Morton <akpm@linux-foundation.org>,
Jason Gunthorpe <jgg@nvidia.com>,
Andrea Arcangeli <aarcange@redhat.com>,
peterx@redhat.com, Axel Rasmussen <axelrasmussen@google.com>
Subject: [PATCH 01/13] mm/Kconfig: CONFIG_PGTABLE_HAS_HUGE_LEAVES
Date: Tue, 19 Dec 2023 15:55:26 +0800 [thread overview]
Message-ID: <20231219075538.414708-2-peterx@redhat.com> (raw)
In-Reply-To: <20231219075538.414708-1-peterx@redhat.com>
From: Peter Xu <peterx@redhat.com>
Introduce a config option that will be selected as long as huge leaves are
involved in pgtable (thp or hugetlbfs). It would be useful to mark any
code with this new config that can process either hugetlb or thp pages in
any level that is higher than pte level.
Signed-off-by: Peter Xu <peterx@redhat.com>
---
mm/Kconfig | 3 +++
1 file changed, 3 insertions(+)
diff --git a/mm/Kconfig b/mm/Kconfig
index 8f8b02e9c136..4ca97d959323 100644
--- a/mm/Kconfig
+++ b/mm/Kconfig
@@ -904,6 +904,9 @@ config READ_ONLY_THP_FOR_FS
endif # TRANSPARENT_HUGEPAGE
+config PGTABLE_HAS_HUGE_LEAVES
+ def_bool TRANSPARENT_HUGEPAGE || HUGETLB_PAGE
+
#
# UP and nommu archs use km based percpu allocator
#
--
2.41.0
next prev parent reply other threads:[~2023-12-19 7:56 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-12-19 7:55 [PATCH 00/13] mm/gup: Unify hugetlb, part 2 peterx
2023-12-19 7:55 ` peterx [this message]
2023-12-19 7:55 ` [PATCH 02/13] mm/hugetlb: Declare hugetlbfs_pagecache_present() non-static peterx
2023-12-19 7:55 ` [PATCH 03/13] mm: Provide generic pmd_thp_or_huge() peterx
2023-12-25 6:29 ` Muchun Song
2024-01-02 5:37 ` Peter Xu
2024-01-02 6:30 ` Muchun Song
2023-12-19 7:55 ` [PATCH 04/13] mm: Make HPAGE_PXD_* macros even if !THP peterx
2023-12-19 7:55 ` [PATCH 05/13] mm: Introduce vma_pgtable_walk_{begin|end}() peterx
2023-12-25 6:34 ` Muchun Song
[not found] ` <ZZOhlB-KK4hF3PgY@x1n>
2024-01-02 6:29 ` Muchun Song
2023-12-19 7:55 ` [PATCH 06/13] mm/gup: Drop folio_fast_pin_allowed() in hugepd processing peterx
2023-12-19 7:55 ` [PATCH 07/13] mm/gup: Refactor record_subpages() to find 1st small page peterx
2023-12-19 7:55 ` [PATCH 08/13] mm/gup: Handle hugetlb for no_page_table() peterx
2023-12-19 7:55 ` [PATCH 09/13] mm/gup: Cache *pudp in follow_pud_mask() peterx
2023-12-19 16:28 ` James Houghton
2023-12-20 1:43 ` Peter Xu
2023-12-19 7:55 ` [PATCH 10/13] mm/gup: Handle huge pud for follow_pud_mask() peterx
2023-12-19 7:55 ` [PATCH 11/13] mm/gup: Handle huge pmd for follow_pmd_mask() peterx
2023-12-19 7:55 ` [PATCH 12/13] mm/gup: Handle hugepd for follow_page() peterx
2023-12-19 7:55 ` [PATCH 13/13] mm/gup: Handle hugetlb in the generic follow_page_mask code peterx
2023-12-22 1:35 ` [PATCH 00/13] mm/gup: Unify hugetlb, part 2 Peter Xu
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