linux-kernel - Re: [RFC PATCH 08/21] KVM: TDX: Increase/decrease folio ref for huge pages

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Message-ID: <4bb2617db9919859e8d7249fb72bcabae18ebc92.camel@intel.com>
Date: Tue, 24 Jun 2025 22:03:24 +0000
From: "Edgecombe, Rick P" <rick.p.edgecombe@...el.com>
To: "ackerleytng@...gle.com" <ackerleytng@...gle.com>, "Zhao, Yan Y"
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Subject: Re: [RFC PATCH 08/21] KVM: TDX: Increase/decrease folio ref for huge
 pages

On Mon, 2025-06-23 at 15:48 -0700, Ackerley Tng wrote:
> a. Refcounts: won't work - mostly discussed in this (sub-)thread
>    [3]. Using refcounts makes it impossible to distinguish between
>    transient refcounts and refcounts due to errors.

[3] you pointed to this thread, which is the one we are discussing on. Is that
the link you meant?
https://lore.kernel.org/all/aFJjZFFhrMWEPjQG@yzhao56-desk.sh.intel.com/