From: Andrew Morton <akpm@linux-foundation.org>
To: Pratyush Yadav <pratyush@kernel.org>
Cc: Alexander Graf <graf@amazon.com>, Mike Rapoport <rppt@kernel.org>,
Pasha Tatashin <pasha.tatashin@soleen.com>,
kexec@lists.infradead.org, linux-mm@kvack.org,
linux-kernel@vger.kernel.org,
Suren Baghdasaryan <surenb@google.com>
Subject: Re: [PATCH v2 1/2] kho: use unsigned long for nr_pages
Date: Fri, 16 Jan 2026 14:26:35 -0800 [thread overview]
Message-ID: <20260116142635.b90464ed9772c146a9842370@linux-foundation.org> (raw)
In-Reply-To: <20260116112217.915803-2-pratyush@kernel.org>
On Fri, 16 Jan 2026 11:22:14 +0000 Pratyush Yadav <pratyush@kernel.org> wrote:
> With 4k pages, a 32-bit nr_pages can span up to 16 TiB. While it is a
> lot, there exist systems with terabytes of RAM. gup is also moving to
> using long for nr_pages. Use unsigned long and make KHO future-proof.
We can expect people to be using LTS kernel five years from now,
perhaps much longer. Machines will be bigger then!
IOW, shouldn't we backport this?
next prev parent reply other threads:[~2026-01-16 22:26 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-01-16 11:22 [PATCH v2 0/2] kho: clean up page initialization logic Pratyush Yadav
2026-01-16 11:22 ` [PATCH v2 1/2] kho: use unsigned long for nr_pages Pratyush Yadav
2026-01-16 22:26 ` Andrew Morton [this message]
2026-01-20 13:06 ` Mike Rapoport
2026-01-20 13:03 ` Mike Rapoport
2026-01-22 19:08 ` Pasha Tatashin
2026-01-16 11:22 ` [PATCH v2 2/2] kho: simplify page initialization in kho_restore_page() Pratyush Yadav
2026-01-20 13:05 ` Mike Rapoport
2026-01-22 19:11 ` Pasha Tatashin
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