linux-kernel - Re: [RFC] rootmpfs

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Date:	Thu, 11 Apr 2013 17:25:17 +0000 (UTC)
From:	Lauri Kasanen <cand@....com>
To:	linux-kernel@...r.kernel.org
Subject: Re: [RFC] rootmpfs

Rob Landley <rob <at> landley.net> writes:

> Attached is my quick and dirty hack to make rootfs be tmpfs when  
> CONFIG_TMPFS is
> enabled. It can't be this easy or somebody would have done it in the  
> _eight_years_
> since https://lkml.org/lkml/2006/7/31/145

Hi Rob,

We've been using a variation of the 2006 patch in TinyCore for years. It's 
a fairly essential piece for us, as using it can save several seconds of 
boot time for us.

Since we run in the initramfs, to get size limits and swappability, we used 
to tar the files and switch_root. Both unnecessary steps when the kernel 
could directly unpack to tmpfs.

So consider this a +1 "we use this".

- Lauri

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