From: Matthew Wilcox <willy@infradead.org>
To: Dave Hansen <dave.hansen@intel.com>
Cc: Ankur Arora <ankur.a.arora@oracle.com>,
linux-kernel@vger.kernel.org, linux-mm@kvack.org, x86@kernel.org,
akpm@linux-foundation.org, bp@alien8.de,
dave.hansen@linux.intel.com, hpa@zytor.com, mingo@redhat.com,
mjguzik@gmail.com, luto@kernel.org, peterz@infradead.org,
acme@kernel.org, namhyung@kernel.org, tglx@linutronix.de,
jon.grimm@amd.com, bharata@amd.com, raghavendra.kt@amd.com,
boris.ostrovsky@oracle.com, konrad.wilk@oracle.com
Subject: Re: [PATCH v4 13/13] x86/folio_zero_user: Add multi-page clearing
Date: Mon, 16 Jun 2025 15:58:25 +0100 [thread overview]
Message-ID: <aFAxEdZCW_uQpfqN@casper.infradead.org> (raw)
In-Reply-To: <1c0d3994-1397-4bc6-bb55-9c26acdcb477@intel.com>
On Mon, Jun 16, 2025 at 07:44:13AM -0700, Dave Hansen wrote:
> To me multi-page means "more than one 'struct page'". But this series is
> clearly using multi-page clearing to mean clearing >PAGE_SIZE in one
> clear. But oh well.
I'm not sure I see the distinction you're trying to draw. struct page
refers to a PAGE_SIZE aligned, PAGE_SIZE sized chunk of memory. So
if you do something to more than PAGE_SIZE bytes, you're doing something
to multiple struct pages.
next prev parent reply other threads:[~2025-06-16 14:58 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-06-16 5:22 [PATCH v4 00/13] x86/mm: Add multi-page clearing Ankur Arora
2025-06-16 5:22 ` [PATCH v4 01/13] perf bench mem: Remove repetition around time measurement Ankur Arora
2025-06-16 5:22 ` [PATCH v4 02/13] perf bench mem: Defer type munging of size to float Ankur Arora
2025-06-16 5:22 ` [PATCH v4 03/13] perf bench mem: Move mem op parameters into a structure Ankur Arora
2025-06-16 5:22 ` [PATCH v4 04/13] perf bench mem: Pull out init/fini logic Ankur Arora
2025-06-16 5:22 ` [PATCH v4 05/13] perf bench mem: Switch from zalloc() to mmap() Ankur Arora
2025-06-16 5:22 ` [PATCH v4 06/13] perf bench mem: Allow mapping of hugepages Ankur Arora
2025-06-16 5:22 ` [PATCH v4 07/13] perf bench mem: Allow chunking on a memory region Ankur Arora
2025-06-16 5:22 ` [PATCH v4 08/13] perf bench mem: Refactor mem_options Ankur Arora
2025-06-16 5:22 ` [PATCH v4 09/13] perf bench mem: Add mmap() workloads Ankur Arora
2025-06-16 5:22 ` [PATCH v4 10/13] x86/mm: Simplify clear_page_* Ankur Arora
2025-06-16 14:35 ` Dave Hansen
2025-06-16 14:38 ` Peter Zijlstra
2025-06-16 18:18 ` Ankur Arora
2025-06-16 16:48 ` kernel test robot
2025-06-16 5:22 ` [PATCH v4 11/13] x86/clear_page: Introduce clear_pages() Ankur Arora
2025-06-16 5:22 ` [PATCH v4 12/13] mm: memory: allow arch override for folio_zero_user() Ankur Arora
2025-06-16 5:22 ` [PATCH v4 13/13] x86/folio_zero_user: Add multi-page clearing Ankur Arora
2025-06-16 11:39 ` kernel test robot
2025-06-16 14:44 ` Dave Hansen
2025-06-16 14:50 ` Peter Zijlstra
2025-06-16 15:03 ` Dave Hansen
2025-06-16 18:20 ` Ankur Arora
2025-06-16 14:58 ` Matthew Wilcox [this message]
2025-06-16 18:47 ` Ankur Arora
2025-06-19 23:51 ` Ankur Arora
2025-06-16 15:06 ` [PATCH v4 00/13] x86/mm: " Dave Hansen
2025-06-16 18:25 ` Ankur Arora
2025-06-16 18:30 ` Dave Hansen
2025-06-16 18:43 ` Ankur Arora
2025-07-04 8:15 ` Raghavendra K T
2025-07-07 21:02 ` Ankur Arora
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=aFAxEdZCW_uQpfqN@casper.infradead.org \
--to=willy@infradead.org \
--cc=acme@kernel.org \
--cc=akpm@linux-foundation.org \
--cc=ankur.a.arora@oracle.com \
--cc=bharata@amd.com \
--cc=boris.ostrovsky@oracle.com \
--cc=bp@alien8.de \
--cc=dave.hansen@intel.com \
--cc=dave.hansen@linux.intel.com \
--cc=hpa@zytor.com \
--cc=jon.grimm@amd.com \
--cc=konrad.wilk@oracle.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=luto@kernel.org \
--cc=mingo@redhat.com \
--cc=mjguzik@gmail.com \
--cc=namhyung@kernel.org \
--cc=peterz@infradead.org \
--cc=raghavendra.kt@amd.com \
--cc=tglx@linutronix.de \
--cc=x86@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).