Re: [PATCH 0/6 v7] overlay filesystem - request for inclusion

From: Linus Torvalds
Date: Tue Mar 22 2011 - 14:28:43 EST

On Tue, Mar 22, 2011 at 11:22 AM, Felix Fietkau <nbd@xxxxxxxxxxx> 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.


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