From: Randy Dunlap <rdunlap@infradead.org>
To: "Lorenzo Stoakes (Oracle)" <ljs@kernel.org>,
Nico Pache <npache@redhat.com>
Cc: linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org,
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ziy@nvidia.com, zokeefe@google.com
Subject: Re: [PATCH mm-unstable v15 05/13] mm/khugepaged: generalize collapse_huge_page for mTHP collapse
Date: Tue, 17 Mar 2026 10:16:59 -0700 [thread overview]
Message-ID: <68072e04-49e6-4418-a465-6a70dbb01f13@infradead.org> (raw)
In-Reply-To: <9f0b8790-eace-4caa-a0c0-45f66285887f@lucifer.local>
On 3/17/26 9:51 AM, Lorenzo Stoakes (Oracle) wrote:
> On Wed, Feb 25, 2026 at 08:24:27PM -0700, Nico Pache wrote:
>> Pass an order and offset to collapse_huge_page to support collapsing anon
>> memory to arbitrary orders within a PMD. order indicates what mTHP size we
>> are attempting to collapse to, and offset indicates were in the PMD to
>> start the collapse attempt.
>>
>> For non-PMD collapse we must leave the anon VMA write locked until after
>> we collapse the mTHP-- in the PMD case all the pages are isolated, but in
> The '--' seems weird here 🙂 maybe meant to be ' - '?
"--" is common typewriter(!) style for "dash".
Single "-" is a hyphen.
--
~Randy
next prev parent reply other threads:[~2026-03-17 17:17 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-02-26 3:17 [PATCH mm-unstable v15 00/13] khugepaged: mTHP support Nico Pache
2026-02-26 3:22 ` [PATCH mm-unstable v15 01/13] mm/khugepaged: generalize hugepage_vma_revalidate for " Nico Pache
2026-03-12 20:00 ` David Hildenbrand (Arm)
2026-02-26 3:23 ` [PATCH mm-unstable v15 02/13] mm/khugepaged: generalize alloc_charge_folio() Nico Pache
2026-03-12 20:05 ` David Hildenbrand (Arm)
2026-02-26 3:23 ` [PATCH mm-unstable v15 03/13] mm/khugepaged: generalize __collapse_huge_page_* for mTHP support Nico Pache
2026-03-12 20:32 ` David Hildenbrand (Arm)
2026-03-12 20:36 ` David Hildenbrand (Arm)
2026-03-12 20:56 ` David Hildenbrand (Arm)
2026-04-08 19:48 ` Nico Pache
2026-02-26 3:24 ` [PATCH mm-unstable v15 04/13] mm/khugepaged: introduce collapse_max_ptes_none helper function Nico Pache
2026-02-26 3:24 ` [PATCH mm-unstable v15 05/13] mm/khugepaged: generalize collapse_huge_page for mTHP collapse Nico Pache
2026-03-17 16:51 ` Lorenzo Stoakes (Oracle)
2026-03-17 17:16 ` Randy Dunlap [this message]
2026-02-26 3:24 ` [PATCH mm-unstable v15 06/13] mm/khugepaged: skip collapsing mTHP to smaller orders Nico Pache
2026-03-12 21:00 ` David Hildenbrand (Arm)
2026-02-26 3:25 ` [PATCH mm-unstable v15 07/13] mm/khugepaged: add per-order mTHP collapse failure statistics Nico Pache
2026-03-12 21:03 ` David Hildenbrand (Arm)
2026-03-17 17:05 ` Lorenzo Stoakes (Oracle)
2026-02-26 3:25 ` [PATCH mm-unstable v15 08/13] mm/khugepaged: improve tracepoints for mTHP orders Nico Pache
2026-03-12 21:05 ` David Hildenbrand (Arm)
2026-02-26 3:25 ` [PATCH mm-unstable v15 09/13] mm/khugepaged: introduce collapse_allowable_orders helper function Nico Pache
2026-03-12 21:09 ` David Hildenbrand (Arm)
2026-03-17 17:08 ` Lorenzo Stoakes (Oracle)
2026-02-26 3:26 ` [PATCH mm-unstable v15 10/13] mm/khugepaged: Introduce mTHP collapse support Nico Pache
2026-03-12 21:16 ` David Hildenbrand (Arm)
2026-03-17 21:36 ` Lorenzo Stoakes (Oracle)
2026-02-26 3:26 ` [PATCH mm-unstable v15 11/13] mm/khugepaged: avoid unnecessary mTHP collapse attempts Nico Pache
2026-02-26 16:26 ` Usama Arif
2026-02-26 20:47 ` Nico Pache
2026-03-12 21:19 ` David Hildenbrand (Arm)
2026-03-17 10:35 ` Lorenzo Stoakes (Oracle)
2026-03-18 18:59 ` Nico Pache
2026-03-18 19:48 ` David Hildenbrand (Arm)
2026-03-19 15:59 ` Lorenzo Stoakes (Oracle)
2026-02-26 3:26 ` [PATCH mm-unstable v15 12/13] mm/khugepaged: run khugepaged for all orders Nico Pache
2026-02-26 15:53 ` Usama Arif
2026-03-12 21:22 ` David Hildenbrand (Arm)
2026-03-17 10:58 ` Lorenzo Stoakes (Oracle)
2026-03-18 19:02 ` Nico Pache
2026-03-17 11:36 ` Lance Yang
2026-03-18 19:07 ` Nico Pache
2026-02-26 3:27 ` [PATCH mm-unstable v15 13/13] Documentation: mm: update the admin guide for mTHP collapse Nico Pache
2026-03-17 11:02 ` Lorenzo Stoakes (Oracle)
2026-03-18 19:08 ` Nico Pache
2026-03-18 19:49 ` David Hildenbrand (Arm)
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