From: "Huang, Ying" <ying.huang@linux.alibaba.com>
To: "David Hildenbrand (Arm)" <david@kernel.org>
Cc: Shivank Garg <shivankg@amd.com>,
akpm@linux-foundation.org, kinseyho@google.com,
weixugc@google.com, ljs@kernel.org, Liam.Howlett@oracle.com,
vbabka@kernel.org, willy@infradead.org, rppt@kernel.org,
surenb@google.com, mhocko@suse.com, ziy@nvidia.com,
matthew.brost@intel.com, joshua.hahnjy@gmail.com,
rakie.kim@sk.com, byungchul@sk.com, gourry@gourry.net,
apopple@nvidia.com, dave@stgolabs.net,
Jonathan.Cameron@huawei.com, rkodsara@amd.com,
vkoul@kernel.org, bharata@amd.com, sj@kernel.org,
rientjes@google.com, xuezhengchu@huawei.com,
yiannis@zptcorp.com, dave.hansen@intel.com, hannes@cmpxchg.org,
jhubbard@nvidia.com, peterx@redhat.com, riel@surriel.com,
shakeel.butt@linux.dev, stalexan@redhat.com, tj@kernel.org,
nifan.cxl@gmail.com, jic23@kernel.org, aneesh.kumar@kernel.org,
nathan.lynch@amd.com, Frank.li@nxp.com, djbw@kernel.org,
linux-kernel@vger.kernel.org, linux-mm@kvack.org
Subject: Re: [PATCH 0/7] Accelerate page migration with batch copying and hardware offload
Date: Tue, 12 May 2026 09:45:48 +0800 [thread overview]
Message-ID: <87ecjhwgc3.fsf@DESKTOP-5N7EMDA> (raw)
In-Reply-To: <088ded16-09ca-4c40-ab23-62108c342588@kernel.org> (David Hildenbrand's message of "Mon, 11 May 2026 17:19:18 +0200")
"David Hildenbrand (Arm)" <david@kernel.org> writes:
>>> ---------------
>>>
>>> 1. Should the batch path run without a registered migrator? Patches 1-4
>>> are self-contained and use folios_mc_copy() (CPU). I have several
>>> options like making batch path always-on for eligible folios, or
>>> giving admin an option to flip the static branch, or keep the gate.
>>> I'm leaning toward always-on.
>>>
>>> 2. Carrying already_copied via folio->migrate_info vs changing the
>>> migrate_folio() callback signature (Huang, Ying). I went with the
>>> field for now to avoid touching every fs callback before the design
>>> settles. Happy to revisit.
>>
>> Personally, I still prefer to change migrate_folio() callbacks for
>> better readability.
>
> Can that be added as a cleanup on top?
It sounds good to me.
---
Best Regards,
Huang, Ying
next prev parent reply other threads:[~2026-05-12 1:46 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20260428155043.39251-2-shivankg@amd.com>
[not found] ` <20260428155043.39251-6-shivankg@amd.com>
2026-05-07 9:43 ` [PATCH 2/7] mm/migrate: use migrate_info field instead of private Huang, Ying
2026-05-11 15:22 ` David Hildenbrand (Arm)
2026-05-07 9:58 ` [PATCH 0/7] Accelerate page migration with batch copying and hardware offload Huang, Ying
2026-05-11 15:19 ` David Hildenbrand (Arm)
2026-05-12 1:45 ` Huang, Ying [this message]
[not found] ` <87zf2kvnqy.fsf@DESKTOP-5N7EMDA>
2026-05-08 11:04 ` Garg, Shivank
2026-05-08 11:28 ` Huang, Ying
2026-05-08 12:34 ` Garg, Shivank
2026-05-09 7:49 ` Huang, Ying
2026-05-10 15:03 ` Garg, Shivank
2026-05-12 2:15 ` Huang, Ying
[not found] ` <20260428155043.39251-8-shivankg@amd.com>
2026-05-11 15:35 ` [PATCH 3/7] mm/migrate: skip data copy for already-copied folios David Hildenbrand (Arm)
[not found] ` <20260428155043.39251-10-shivankg@amd.com>
2026-05-11 15:40 ` [PATCH 4/7] mm/migrate: add batch-copy path in migrate_pages_batch David Hildenbrand (Arm)
[not found] ` <20260428155043.39251-12-shivankg@amd.com>
2026-05-11 15:46 ` [PATCH 5/7] mm/migrate: add copy offload registration infrastructure David Hildenbrand (Arm)
2026-05-11 15:50 ` David Hildenbrand (Arm)
2026-05-11 15:53 ` [PATCH 0/7] Accelerate page migration with batch copying and hardware offload David Hildenbrand (Arm)
2026-05-12 2:35 ` Huang, Ying
2026-05-12 6:34 ` David Hildenbrand (Arm)
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