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Date: Tue, 17 Feb 2026 14:50:14 +0100
From: Greg KH <gregkh@linuxfoundation.org>
To: Ryan Roberts <ryan.roberts@arm.com>
Cc: stable@vger.kernel.org, catalin.marinas@arm.com, will@kernel.org,
	linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org,
	Jack Aboutboul <jaboutboul@microsoft.com>,
	Sharath George John <sgeorgejohn@microsoft.com>,
	Noah Meyerhans <nmeyerhans@microsoft.com>,
	Jim Perrin <Jim.Perrin@microsoft.com>
Subject: Re: [PATCH 6.6 0/3] arm64: Speed up boot with faster linear map
 creation
Message-ID: <2026021700-chafe-jurist-cb24@gregkh>
References: <20260217133411.2881311-1-ryan.roberts@arm.com>
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In-Reply-To: <20260217133411.2881311-1-ryan.roberts@arm.com>

On Tue, Feb 17, 2026 at 01:34:05PM +0000, Ryan Roberts wrote:
> Hi All,
> 
> This series is a backport that applies to stable kernel 6.6 (base v6.6.126), for
> some speed ups to enable significantly faster booting on systems with a lot of
> memory. The patches were originally posted at:
> 
>   https://lore.kernel.org/linux-arm-kernel/20240412131908.433043-1-ryan.roberts@arm.com/
> 
> ... and were originally merged upstream in v6.10-rc1.
> 
> I'm requesting this be merged to stable on behalf of a partner who wants to get
> the benefit of this series in Debian 12.

Why can't they just use a newer kernel version (i.e. 6.12)?  Surely they
would be able to justify moving to a newer kernel for performance
reasons, why enable them to stay on an older one, just delaying the
inevitable upgrade they will have to do anyway in a year or so?

thanks,

greg k-h