Re: [PATCH] use initmpfs even if there's root= cmdline

[Dave Young]

On 12/12/13 at 05:25pm, Dave Young wrote:
> 
> Current code use ramfs instead of tmpfs for stub when root= defined.
> 
> But for real use case with initramfs, usually there's like cmdline like
> root=UUID=$UUID the root dev is the real device. For that case we have
> no way to use initmpfs, thus this patch removes the limitation so tmpfs
> can benefit more people.
> 
> The logic become:
> if CONFIG_TMPFS && rootfstype is not ramfs
>     use tmpfs
> else
>     use ramfs
> 

Discussed with Vivek Goyal about the kdump use case, I missed one thing that
tmpfs has default size limit though we can tune it.

So I will think more about it, will address this later, please ignore this
patch.

Thanks
Dave
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