From: David Hildenbrand <david@redhat.com>
To: Kefeng Wang <wangkefeng.wang@huawei.com>,
Andrew Morton <akpm@linux-foundation.org>,
Lorenzo Stoakes <lorenzo.stoakes@oracle.com>,
linux-mm@kvack.org
Cc: Zi Yan <ziy@nvidia.com>,
Baolin Wang <baolin.wang@linux.alibaba.com>,
Ryan Roberts <ryan.roberts@arm.com>, Dev Jain <dev.jain@arm.com>,
Barry Song <baohua@kernel.org>, Lance Yang <lance.yang@linux.dev>,
Liam.Howlett@oracle.com,
Sidhartha Kumar <sidhartha.kumar@oracle.com>
Subject: Re: [PATCH v4 2/4] mm: mprotect: avoid unnecessary struct page accessing if pte_protnone()
Date: Mon, 20 Oct 2025 15:08:23 +0200 [thread overview]
Message-ID: <3f680786-feff-4a43-8f32-7935e4c77a16@redhat.com> (raw)
In-Reply-To: <20251020061845.3347258-3-wangkefeng.wang@huawei.com>
On 20.10.25 08:18, Kefeng Wang wrote:
> If the pte_protnone() is true, we could avoid unnecessary struct page
> accessing and reduce cache footprint when scanning page tables for prot
> numa, there was a similar change before, see more commit a818f5363a0e
> ("autonuma: reduce cache footprint when scanning page tables").
>
> Acked-by: Zi Yan <ziy@nvidia.com>
> Reviewed-by: Dev Jain <dev.jain@arm.com>
> Reviewed-by: Sidhartha Kumar <sidhartha.kumar@oracle.com>
> Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
> ---
Acked-by: David Hildenbrand <david@redhat.com>
--
Cheers
David / dhildenb
next prev parent reply other threads:[~2025-10-20 13:08 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-10-20 6:18 [PATCH v4 0/4] mm: some optimizations for prot numa Kefeng Wang
2025-10-20 6:18 ` [PATCH v4 1/4] mm: mprotect: always skip dma pinned folio in prot_numa_skip() Kefeng Wang
2025-10-21 3:06 ` Barry Song
2025-10-20 6:18 ` [PATCH v4 2/4] mm: mprotect: avoid unnecessary struct page accessing if pte_protnone() Kefeng Wang
2025-10-20 12:53 ` Lorenzo Stoakes
2025-10-20 13:08 ` David Hildenbrand [this message]
2025-10-20 6:18 ` [PATCH v4 3/4] mm: mprotect: convert to folio_needs_prot_numa() Kefeng Wang
2025-10-20 13:09 ` David Hildenbrand
2025-10-20 13:10 ` Lorenzo Stoakes
2025-10-20 15:14 ` Kefeng Wang
2025-10-20 17:34 ` David Hildenbrand
2025-10-20 17:49 ` Lorenzo Stoakes
2025-10-20 18:12 ` David Hildenbrand
2025-10-20 18:56 ` Lorenzo Stoakes
2025-10-21 8:41 ` Kefeng Wang
2025-10-21 9:13 ` David Hildenbrand
2025-10-21 9:25 ` Lorenzo Stoakes
2025-10-21 9:45 ` Lorenzo Stoakes
2025-10-21 12:54 ` Kefeng Wang
2025-10-21 14:56 ` Lorenzo Stoakes
2025-10-21 15:01 ` David Hildenbrand
2025-10-21 16:36 ` Lorenzo Stoakes
2025-10-22 0:51 ` Kefeng Wang
2025-10-20 6:18 ` [PATCH v4 4/4] mm: huge_memory: use folio_needs_prot_numa() for pmd folio Kefeng Wang
2025-10-20 13:11 ` David Hildenbrand
2025-10-20 13:15 ` Lorenzo Stoakes
2025-10-20 13:23 ` David Hildenbrand
2025-10-20 15:18 ` Kefeng Wang
2025-10-21 13:37 ` Kefeng Wang
2025-10-21 15:35 ` Lorenzo Stoakes
2025-10-21 15:29 ` Lorenzo Stoakes
2025-10-22 1:33 ` Kefeng Wang
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