From: Jason Gunthorpe <jgg@nvidia.com>
To: peterx@redhat.com
Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org,
linuxppc-dev@lists.ozlabs.org,
Michael Ellerman <mpe@ellerman.id.au>,
Christophe Leroy <christophe.leroy@csgroup.eu>,
Matthew Wilcox <willy@infradead.org>,
Rik van Riel <riel@surriel.com>,
Lorenzo Stoakes <lstoakes@gmail.com>,
Axel Rasmussen <axelrasmussen@google.com>,
Yang Shi <shy828301@gmail.com>,
John Hubbard <jhubbard@nvidia.com>,
linux-arm-kernel@lists.infradead.org,
"Kirill A . Shutemov" <kirill@shutemov.name>,
Andrew Jones <andrew.jones@linux.dev>,
Vlastimil Babka <vbabka@suse.cz>, Mike Rapoport <rppt@kernel.org>,
Andrew Morton <akpm@linux-foundation.org>,
Muchun Song <muchun.song@linux.dev>,
Christoph Hellwig <hch@infradead.org>,
linux-riscv@lists.infradead.org,
James Houghton <jthoughton@google.com>,
David Hildenbrand <david@redhat.com>,
Andrea Arcangeli <aarcange@redhat.com>,
"Aneesh Kumar K . V" <aneesh.kumar@kernel.org>,
Mike Kravetz <mike.kravetz@oracle.com>
Subject: Re: [PATCH v3 04/12] mm: Introduce vma_pgtable_walk_{begin|end}()
Date: Fri, 22 Mar 2024 09:27:42 -0300 [thread overview]
Message-ID: <20240322122742.GG159172@nvidia.com> (raw)
In-Reply-To: <20240321220802.679544-5-peterx@redhat.com>
On Thu, Mar 21, 2024 at 06:07:54PM -0400, peterx@redhat.com wrote:
> From: Peter Xu <peterx@redhat.com>
>
> Introduce per-vma begin()/end() helpers for pgtable walks. This is a
> preparation work to merge hugetlb pgtable walkers with generic mm.
>
> The helpers need to be called before and after a pgtable walk, will start
> to be needed if the pgtable walker code supports hugetlb pages. It's a
> hook point for any type of VMA, but for now only hugetlb uses it to
> stablize the pgtable pages from getting away (due to possible pmd
> unsharing).
>
> Reviewed-by: Christoph Hellwig <hch@infradead.org>
> Reviewed-by: Muchun Song <muchun.song@linux.dev>
> Signed-off-by: Peter Xu <peterx@redhat.com>
> ---
> include/linux/mm.h | 3 +++
> mm/memory.c | 12 ++++++++++++
> 2 files changed, 15 insertions(+)
is_vm_hugetlb_page(vma) seems weirdly named. Regardless
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Jason
next prev parent reply other threads:[~2024-03-22 12:27 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-03-21 22:07 [PATCH v3 00/12] mm/gup: Unify hugetlb, part 2 peterx
2024-03-21 22:07 ` [PATCH v3 01/12] mm/Kconfig: CONFIG_PGTABLE_HAS_HUGE_LEAVES peterx
2024-03-21 22:07 ` [PATCH v3 02/12] mm/hugetlb: Declare hugetlbfs_pagecache_present() non-static peterx
2024-03-21 22:07 ` [PATCH v3 03/12] mm: Make HPAGE_PXD_* macros even if !THP peterx
2024-03-22 17:14 ` SeongJae Park
2024-03-23 0:30 ` Peter Xu
2024-03-23 1:05 ` SeongJae Park
2024-03-21 22:07 ` [PATCH v3 04/12] mm: Introduce vma_pgtable_walk_{begin|end}() peterx
2024-03-22 12:27 ` Jason Gunthorpe [this message]
2024-03-21 22:07 ` [PATCH v3 06/12] mm/gup: Refactor record_subpages() to find 1st small page peterx
2024-03-21 22:07 ` [PATCH v3 07/12] mm/gup: Handle hugetlb for no_page_table() peterx
2024-03-21 22:07 ` [PATCH v3 08/12] mm/gup: Cache *pudp in follow_pud_mask() peterx
2024-03-21 22:07 ` [PATCH v3 09/12] mm/gup: Handle huge pud for follow_pud_mask() peterx
2024-03-21 22:08 ` [PATCH v3 11/12] mm/gup: Handle hugepd for follow_page() peterx
2024-03-21 22:08 ` [PATCH v3 12/12] mm/gup: Handle hugetlb in the generic follow_page_mask code peterx
2024-03-22 13:30 ` Jason Gunthorpe
2024-03-22 15:55 ` Peter Xu
2024-03-22 16:08 ` Jason Gunthorpe
2024-03-22 20:48 ` Andrew Morton
2024-03-23 0:45 ` Peter Xu
2024-03-23 2:15 ` Peter Xu
[not found] ` <20240321220802.679544-6-peterx@redhat.com>
2024-03-22 12:28 ` [PATCH v3 05/12] mm/gup: Drop folio_fast_pin_allowed() in hugepd processing Jason Gunthorpe
2024-03-22 16:10 ` [PATCH v3 00/12] mm/gup: Unify hugetlb, part 2 Jason Gunthorpe
2024-03-25 18:58 ` Peter Xu
2024-03-26 14:02 ` Jason Gunthorpe
2024-04-04 21:48 ` Peter Xu
2024-04-05 18:16 ` Jason Gunthorpe
2024-04-05 21:42 ` Peter Xu
2024-04-09 23:43 ` Jason Gunthorpe
2024-04-10 15:28 ` Peter Xu
2024-04-10 16:30 ` Christophe Leroy
2024-04-10 19:58 ` Peter Xu
2024-04-12 14:27 ` Christophe Leroy
2024-03-25 14:56 ` Christophe Leroy
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