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SubjectRe: [RFC PATCH] rootfs: Use tmpfs for rootfs even if root= is given
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On 10/31/23 11:56, Greg Kroah-Hartman wrote:
> On Tue, Oct 31, 2023 at 11:44:17AM -0400, Stefan Berger wrote:
>> rootfs currently does not use tmpfs if the root= boot option is passed
>> even though the documentation about rootfs (added in 6e19eded3684) in
>> Documentation/filesystems/ramfs-rootfs-initramfs.rst states:
>>
>> If CONFIG_TMPFS is enabled, rootfs will use tmpfs instead of ramfs by
>> default. To force ramfs, add "rootfstype=ramfs" to the kernel command
>> line.
>
> At this point in time, is there even any difference between ramfs and
> tmpfs anymore? Why would you want to choose one over the other here?

I submitted a patch to fix this to the list multiple times, which got ignored as
always. Most recently here:

https://lore.kernel.org/lkml/8244c75f-445e-b15b-9dbf-266e7ca666e2@landley.net/

Rob

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