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From: Usama Arif <usama.arif@linux.dev>
To: Usama Arif <usama.arif@linux.dev>
Cc: Andrew Morton <akpm@linux-foundation.org>,
	david@kernel.org, chrisl@kernel.org, kasong@tencent.com,
	ljs@kernel.org, ziy@nvidia.com, linux-mm@kvack.org,
	ying.huang@linux.alibaba.com, Baoquan He <baoquan.he@linux.dev>,
	willy@infradead.org, youngjun.park@lge.com, hannes@cmpxchg.org,
	riel@surriel.com, shakeel.butt@linux.dev, alex@ghiti.fr,
	kas@kernel.org, baohua@kernel.org, dev.jain@arm.com,
	baolin.wang@linux.alibaba.com, npache@redhat.com,
	"Liam R . Howlett" <liam@infradead.org>,
	ryan.roberts@arm.com, Vlastimil Babka <vbabka@kernel.org>,
	lance.yang@linux.dev, linux-kernel@vger.kernel.org,
	nphamcs@gmail.com, shikemeng@huaweicloud.com,
	kernel-team@meta.com
Subject: Re: [PATCH 0/6] mm: preparatory patches for PMD level swap entries
Date: Fri,  3 Jul 2026 10:48:31 -0700	[thread overview]
Message-ID: <20260703174832.55655-1-usama.arif@linux.dev> (raw)
In-Reply-To: <20260630164143.1595669-1-usama.arif@linux.dev>

On Tue, 30 Jun 2026 09:34:37 -0700 Usama Arif <usama.arif@linux.dev> wrote:

> This is the preparatory part of the PMD page table swapin work.  The
> full PMD swap entry series has been split into two parts:
> 
>   1. this preparatory series, which contains the first 6 patches. Zi [1]
>      and Lance [2] suggested to separate this out from the core series.
>   2. the PMD swap entry core series, which depends on this one. I will
>      send this once the preparatory series is merged in mm-new as v3
>      as the combined is currently at v2 [1].
>      I have not marked this prep series as v3, as its not really adding
>      support for PMD swap entries.
> 
> This series does not introduce PMD swap entries and does not install any
> new page-table entry type.  It only cleans up existing PMD softleaf
> helpers and call sites so the follow-up PMD swap entry series can be
> smaller and easier to review.
> 

Hi Andrew,

The series only needs 2 small changes:

Removing a comment:
https://lore.kernel.org/all/157838aa-1518-46b5-8734-feab2c42ee2a@kernel.org/

and s/CONFIG_ARCH_SUPPORTS_PMD/CONFIG_ARCH_HAS_PMD_SOFTLEAVES/
in the last patch:
https://lore.kernel.org/all/e37df165-8de0-4924-ba19-0d43a6b7d36e@kernel.org/

I am always torn between sending a fixlet on the existing series or a
new revision.
Just wanted to check what is easiest for you and your preference
in situations like above?

Thanks!
Usama


      parent reply	other threads:[~2026-07-03 17:48 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-06-30 16:34 [PATCH 0/6] mm: preparatory patches for PMD level swap entries Usama Arif
2026-06-30 16:34 ` [PATCH 1/6] mm: add softleaf_to_pmd() and convert existing callers Usama Arif
2026-07-03 10:21   ` Lance Yang
2026-06-30 16:34 ` [PATCH 2/6] mm: extract mm_prepare_for_swap_entries() helper Usama Arif
2026-07-01 16:56   ` David Hildenbrand (Arm)
2026-06-30 16:34 ` [PATCH 3/6] fs/proc: use softleaf_has_pfn() in pagemap PMD walker Usama Arif
2026-06-30 16:34 ` [PATCH 4/6] mm/huge_memory: move softleaf_to_folio() inside migration branch Usama Arif
2026-06-30 16:34 ` [PATCH 5/6] mm/migrate_device: move softleaf_to_folio() inside device-private branch Usama Arif
2026-07-01 19:40   ` David Hildenbrand (Arm)
2026-06-30 16:34 ` [PATCH 6/6] mm: rename ARCH_ENABLE_THP_MIGRATION to ARCH_SUPPORTS_PMD_SOFTLEAF Usama Arif
2026-07-01 20:03   ` David Hildenbrand (Arm)
2026-07-02 16:55     ` Lorenzo Stoakes
2026-06-30 19:50 ` [PATCH 0/6] mm: preparatory patches for PMD level swap entries Andrew Morton
2026-07-01  8:04   ` Lorenzo Stoakes
     [not found]     ` <20260701164613.008aa13cb6187ec9597bf652@linux-foundation.org>
     [not found]       ` <akY_L-yuaCXBOXb3@lucifer>
     [not found]         ` <akZis7j6xSjl8K_D@kernel.org>
2026-07-02 16:53           ` Lorenzo Stoakes
2026-07-02 16:57             ` Mark Brown
2026-07-02 17:08               ` Lorenzo Stoakes
2026-07-02 17:10                 ` David Hildenbrand (Arm)
2026-07-02 17:21                   ` Lorenzo Stoakes
2026-07-03 19:45           ` SJ Park
2026-07-01 10:44   ` Usama Arif
2026-07-01 14:09   ` Usama Arif
2026-07-01 20:04 ` David Hildenbrand (Arm)
2026-07-03 17:48 ` Usama Arif [this message]

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