linux-kernel - Re: Execute in place

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Message-ID: <Pine.LNX.4.64.0705021502450.16517@blonde.wat.veritas.com>
Date:	Wed, 2 May 2007 15:04:44 +0100 (BST)
From:	Hugh Dickins <hugh@...itas.com>
To:	Phillip Susi <psusi@....rr.com>
cc:	Linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: Execute in place

On Tue, 1 May 2007, Phillip Susi wrote:
> I seem to remember seeing some patches go by at some point that allowed one of
> the rom type embeded system filesystems to directly execute binaries out of
> the original rom memory rather than copying them to ram first, then executing
> from there.  I was wondering if rootfs or tmpfs support such execute in place
> today, or if binaries executed from there have their code segments duplicated
> in ram?

Only ext2 supports it today: see Documentation/filesystems/xip.txt

Hugh
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