From: Andrew Morton <akpm@linux-foundation.org>
To: Johannes Weiner <hannes@cmpxchg.org>
Cc: Zi Yan <ziy@nvidia.com>, "Lorenzo Stoakes (ARM)" <ljs@kernel.org>,
Matthew Wilcox <willy@infradead.org>,
William Kucharski <william.kucharski@oracle.com>,
David Hildenbrand <david@kernel.org>,
Baolin Wang <baolin.wang@linux.alibaba.com>,
"Liam R. Howlett" <liam@infradead.org>,
Nico Pache <nico.pache@linux.dev>,
Ryan Roberts <ryan.roberts@arm.com>, Dev Jain <dev.jain@arm.com>,
Barry Song <baohua@kernel.org>, Lance Yang <lance.yang@linux.dev>,
Usama Arif <usama.arif@linux.dev>,
linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org,
linux-mm@kvack.org
Subject: Re: [PATCH v2 1/2] mm/huge_memory: use folio's memcg inside __folio_split()
Date: Tue, 4 Aug 2026 14:27:08 -0700 [thread overview]
Message-ID: <20260804142708.f002cf20a34420874b8dbb21@linux-foundation.org> (raw)
In-Reply-To: <anJP-FXqH3iNjTJ_@cmpxchg.org>
On Tue, 4 Aug 2026 16:47:52 -0400 Johannes Weiner <hannes@cmpxchg.org> wrote:
> > Like you said above, only xas_split_alloc() is affected. And we have not
> > seen related workingset regression report (like what Johannes reported
> > in commit 7b785645e8f13 ("mm: fix page cache convergence regression")).
> > It might be OK to not backport.
> >
> > Johannes, what is your take on this?
>
> Yeah, let's Cc stable.
>
> It would be a bear to debug if you ran into this at scale. Which I
> think you could with certain workloads.
>
> The patches are straight-forward enough. It favors a backport.
I've added cc:stable to both and updated the [2/2] changelog as
suggested in
https://lore.kernel.org/all/DKFELWPHSJNO.3GGVW270HENEG@nvidia.com// So
afaik this series is good-to-go, thanks.
next prev parent reply other threads:[~2026-08-04 21:27 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-31 2:17 [PATCH v2 0/2] Honor XA_FLAGS_ACCOUNT in xas_split_alloc() and charge to folio's memcg Zi Yan
2026-07-31 2:18 ` [PATCH v2 1/2] mm/huge_memory: use folio's memcg inside __folio_split() Zi Yan
2026-08-01 6:57 ` Johannes Weiner
2026-08-01 9:36 ` Lorenzo Stoakes (ARM)
2026-08-03 15:02 ` Zi Yan
2026-08-03 15:07 ` Lorenzo Stoakes (ARM)
2026-08-03 15:23 ` Zi Yan
2026-08-03 17:25 ` Kairui Song
2026-08-03 17:55 ` Zi Yan
2026-08-04 3:09 ` Kairui Song
2026-08-05 14:36 ` Zi Yan
2026-08-05 10:52 ` Lorenzo Stoakes (ARM)
2026-08-04 20:47 ` Johannes Weiner
2026-08-04 21:27 ` Andrew Morton [this message]
2026-08-03 2:39 ` Baolin Wang
2026-07-31 2:18 ` [PATCH v2 2/2] xarray: honor XA_FLAGS_ACCOUNT in xas_split_alloc() Zi Yan
2026-08-01 6:58 ` Johannes Weiner
2026-08-01 9:38 ` Lorenzo Stoakes (ARM)
2026-08-03 15:12 ` Zi Yan
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