linux-kernel - Re: [PATCH 0/3] Add the ability to mount filesystems during initramfs expansion

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Message-ID: <5d8f1f63-879d-483a-b8be-2512794e655d@zytor.com>
Date: Sat, 24 Jan 2026 16:07:04 -0800
From: "H. Peter Anvin" <hpa@...or.com>
To: Askar Safin <safinaskar@...il.com>
Cc: brauner@...nel.org, corbet@....net, jack@...e.cz, lennart@...ttering.net,
        linux-doc@...r.kernel.org, linux-fsdevel@...r.kernel.org,
        linux-kernel@...r.kernel.org, systemd-devel@...ts.freedesktop.org,
        viro@...iv.linux.org.uk
Subject: Re: [PATCH 0/3] Add the ability to mount filesystems during initramfs
 expansion

On 2026-01-24 09:41, Askar Safin wrote:
> "H. Peter Anvin" <hpa@...or.com>:
>> At Plumber's 2024, Lennart Poettering of the systemd project requested
>> the ability to overmount the rootfs with a separate tmpfs before
>> initramfs expansion, so the populated tmpfs can be unmounted.
> 
> This is already solved by [1] and [2]. They are in next.
> 
> [1] https://lore.kernel.org/all/20251229-work-empty-namespace-v1-0-bfb24c7b061f@kernel.org/
> [2] https://lore.kernel.org/all/20260112-work-immutable-rootfs-v2-0-88dd1c34a204@kernel.org/
> 

Just to make it clear: unless someone feels there is value in this feature
regardless of the above, there is no need for this patchset.

	-hpa