Re: [v2 v6.9-stable PATCH] mm: gup: stop abusing try_grab_folio

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To: Yang Shi <yang@xxxxxxxxxxxxxxxxxxxxxx>
Subject: Re: [v2 v6.9-stable PATCH] mm: gup: stop abusing try_grab_folio
From: Greg KH <gregkh@xxxxxxxxxxxxxxxxxxx>
Date: Thu, 15 Aug 2024 10:28:32 +0200
Cc: sashal@xxxxxxxxxx, yangge1116@xxxxxxx, hch@xxxxxxxxxxxxx, david@xxxxxxxxxx, peterx@xxxxxxxxxx, akpm@xxxxxxxxxxxxxxxxxxxx, linux-mm@xxxxxxxxx, stable@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx
In-reply-to: <20240812181238.1882310-2-yang@os.amperecomputing.com>
References: <20240812181238.1882310-1-yang@os.amperecomputing.com> <20240812181238.1882310-2-yang@os.amperecomputing.com>

On Mon, Aug 12, 2024 at 11:12:38AM -0700, Yang Shi wrote:
> commit f442fa6141379a20b48ae3efabee827a3d260787 upstream
> 
> A kernel warning was reported when pinning folio in CMA memory when
> launching SEV virtual machine.  The splat looks like:

6.9 is end-of-life, sorry.

References:
- [v2 v6.6-stable PATCH] mm: gup: stop abusing try_grab_folio
  - From: Yang Shi
- [v2 v6.9-stable PATCH] mm: gup: stop abusing try_grab_folio
  - From: Yang Shi

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