From: Barry Song <21cnbao@gmail.com>
To: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Cc: Jann Horn <jannh@google.com>,
akpm@linux-foundation.org, linux-mm@kvack.org,
linux-kernel@vger.kernel.org, Barry Song <v-songbaohua@oppo.com>,
"Liam R. Howlett" <Liam.Howlett@oracle.com>,
David Hildenbrand <david@redhat.com>,
Vlastimil Babka <vbabka@suse.cz>,
Suren Baghdasaryan <surenb@google.com>,
Lokesh Gidra <lokeshgidra@google.com>,
Tangquan Zheng <zhengtangquan@oppo.com>
Subject: Re: [PATCH RFC v2] mm: use per_vma lock for MADV_DONTNEED
Date: Tue, 3 Jun 2025 13:06:15 +1200 [thread overview]
Message-ID: <CAGsJ_4znsRvV4CeAkiCdN5snusbUGo4j+b3vhuEfiQrNxnGG_g@mail.gmail.com> (raw)
In-Reply-To: <23edf435-7cfe-49d1-9432-aee64c0096ab@lucifer.local>
Hi Lorenzo,
On Mon, Jun 2, 2025 at 11:50 PM Lorenzo Stoakes
<lorenzo.stoakes@oracle.com> wrote:
>
> Barry - would you mind if I went off and wrote a quick patch to separate
> walk_page_range_novma() into walk_page_range_kernel() and
> walk_page_range_user_novma()?
>
> I realise this is a pain, but I feel strongly that having them together is
> a source of confusion and having us special case a -only used in ptdump-
> case like this is not great.
>
> It wouldn't include any VMA locking stuff from this patch, which you could
> then rebase on that.
>
> I think it'd make sense as a separate series and I can throw that out
> fairly quickly...
>
> But I don't want to step on any toes so just let me know!
Feel free to proceed with the patch. I can rebase on top of your
walk_page_range_kernel() changes.
Thanks
Barry
next prev parent reply other threads:[~2025-06-03 1:06 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-05-30 10:44 [PATCH RFC v2] mm: use per_vma lock for MADV_DONTNEED Barry Song
2025-05-30 14:06 ` Jann Horn
2025-05-30 14:34 ` Lorenzo Stoakes
2025-05-30 20:17 ` Barry Song
2025-06-02 17:35 ` SeongJae Park
2025-06-02 17:53 ` SeongJae Park
2025-05-30 20:40 ` Jann Horn
2025-06-02 11:50 ` Lorenzo Stoakes
2025-06-03 1:06 ` Barry Song [this message]
2025-06-03 9:48 ` Lorenzo Stoakes
2025-06-03 7:06 ` Barry Song
2025-06-03 16:52 ` Jann Horn
2025-06-05 10:27 ` Barry Song
2025-05-30 22:00 ` Barry Song
2025-06-02 14:55 ` Jann Horn
2025-06-03 7:51 ` Barry Song
2025-06-03 7:24 ` Qi Zheng
2025-06-03 9:54 ` Lorenzo Stoakes
2025-06-04 6:02 ` Qi Zheng
2025-06-04 17:50 ` Lorenzo Stoakes
2025-06-05 3:23 ` Qi Zheng
2025-06-05 14:04 ` Lorenzo Stoakes
2025-06-06 3:55 ` Qi Zheng
2025-06-06 10:44 ` Lorenzo Stoakes
2025-06-09 6:40 ` Qi Zheng
2025-06-09 15:08 ` Lorenzo Stoakes
2025-06-10 7:20 ` David Hildenbrand
2025-06-06 11:07 ` Jann Horn
2025-06-03 18:43 ` Lorenzo Stoakes
2025-06-03 20:17 ` Suren Baghdasaryan
2025-06-04 5:22 ` Lorenzo Stoakes
2025-06-06 7:18 ` Barry Song
2025-06-06 10:16 ` Lorenzo Stoakes
2025-06-03 20:59 ` Pedro Falcato
2025-06-04 5:23 ` Lorenzo Stoakes
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