From: Muchun Song <muchun.song@linux.dev>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: "David Hildenbrand (Arm)" <david@kernel.org>,
Muchun Song <songmuchun@bytedance.com>,
Oscar Salvador <osalvador@suse.de>,
Michael Ellerman <mpe@ellerman.id.au>,
Madhavan Srinivasan <maddy@linux.ibm.com>,
Lorenzo Stoakes <ljs@kernel.org>,
"Liam R . Howlett" <Liam.Howlett@oracle.com>,
Vlastimil Babka <vbabka@kernel.org>,
Mike Rapoport <rppt@kernel.org>,
Suren Baghdasaryan <surenb@google.com>,
Michal Hocko <mhocko@suse.com>,
Nicholas Piggin <npiggin@gmail.com>,
Christophe Leroy <chleroy@kernel.org>,
aneesh.kumar@linux.ibm.com, joao.m.martins@oracle.com,
linux-mm@kvack.org, linuxppc-dev@lists.ozlabs.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH v5 v5 4/6] mm/sparse-vmemmap: Fix DAX vmemmap accounting with optimization
Date: Thu, 23 Apr 2026 20:43:02 +0800 [thread overview]
Message-ID: <D642D89B-CC3C-46A0-B1D6-3DC2C4DDB874@linux.dev> (raw)
In-Reply-To: <20260423053237.a44b68034673bb35a1e042cd@linux-foundation.org>
> On Apr 23, 2026, at 20:32, Andrew Morton <akpm@linux-foundation.org> wrote:
>
> On Thu, 23 Apr 2026 20:04:21 +0800 Muchun Song <muchun.song@linux.dev> wrote:
>
>> Ah, looks like I need to update the patch to fix this.
>
> OK. Please have a think about which patches we should backport into
> -stable. Possibly all 6! And the timing of this backport.
In theory, I think all of these require backporting, and each carries a certain
level of potential impact.
>
> Ideally, split the series up into one series for 7.1-rcX+stable, another
> series for 7.2.rc1.
Given that these issues have existed for a long time and the trigger
frequency is very low, I suggest we take a more conservative timing.
We can prioritize getting the series into 7.2-rc1 first. Once they have
'baked' in the mainline for a while without issues, we can then proceed
with the backport to -stable (7.1.x). This avoids rushing risky changes
into stable branches.
Thanks,
Muchun
next prev parent reply other threads:[~2026-04-23 12:48 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-04-23 7:19 [PATCH v5 0/6] mm: fix vmemmap optimization accounting and initialization Muchun Song
2026-04-23 7:19 ` [PATCH v5 v5 1/6] mm/sparse-vmemmap: Fix vmemmap accounting underflow Muchun Song
2026-04-23 7:19 ` [PATCH v5 v5 2/6] mm/memory_hotplug: Fix incorrect altmap passing in error path Muchun Song
2026-04-23 10:38 ` David Hildenbrand (Arm)
2026-04-23 12:18 ` Muchun Song
2026-04-23 12:28 ` David Hildenbrand (Arm)
2026-04-23 12:31 ` Muchun Song
2026-04-23 7:19 ` [PATCH v5 v5 3/6] mm/sparse-vmemmap: Pass @pgmap argument to memory deactivation paths Muchun Song
2026-04-23 7:19 ` [PATCH v5 v5 4/6] mm/sparse-vmemmap: Fix DAX vmemmap accounting with optimization Muchun Song
2026-04-23 10:40 ` David Hildenbrand (Arm)
2026-04-23 12:04 ` Muchun Song
2026-04-23 12:32 ` Andrew Morton
2026-04-23 12:43 ` Muchun Song [this message]
2026-04-23 13:14 ` Andrew Morton
2026-04-23 7:19 ` [PATCH v5 v5 5/6] mm/mm_init: Fix pageblock migratetype for ZONE_DEVICE compound pages Muchun Song
2026-04-23 10:41 ` David Hildenbrand (Arm)
2026-04-23 7:19 ` [PATCH v5 v5 6/6] mm/mm_init: Fix uninitialized struct pages for ZONE_DEVICE Muchun Song
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