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From: Linus Torvalds <torvalds@linux-foundation.org>
Date: Tue, 22 Mar 2011 11:27:45 -0700
Message-ID: <AANLkTikouwE+3ysKrnubHLG=egW9=GtYZMWQwTCSDoEr@mail.gmail.com>
Subject: Re: [PATCH 0/6 v7] overlay filesystem - request for inclusion
To: Felix Fietkau <nbd@openwrt.org>
Cc: Miklos Szeredi <miklos@szeredi.hu>, viro@zeniv.linux.org.uk,
        linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org,
        akpm@linux-foundation.org, apw@canonical.com, neilb@suse.de
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On Tue, Mar 22, 2011 at 11:22 AM, Felix Fietkau <nbd@openwrt.org> wrote:
>
> We're using it in OpenWrt (an Embedded Linux distribution) for devices
> with tiny amounts of flash for the entire system (e.g. 4 MB).
> We're using it to provide a writable on-flash root filesystem with
> squashfs for the read-only part and jffs2 for the writable overlay. This
> saves some precious flash space compared to using only jffs2, and it
> makes it easy for users to reset their device to defaults without having
> to reflash.
> With a backport of v6 of this series + my fixes that went into v7 this
> is working quite well on 2.6.37 and 2.6.38 - I'm using it on a few
> wireless access points at home.

Ok - sounds like an eminently sane and reasonable usage scenario.

Al?

                        Linus
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