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Date: Thu, 25 Apr 2002 13:52:46 -0400
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From: Chris Friesen <cfriesen@nortelnetworks.com>
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To: Rob Landley <landley@trommello.org>
Cc: ebuddington@wesleyan.edu,
        Eric Buddington <eric@ma-northadams1b-46.bur.adelphia.net>,
        linux-kernel@vger.kernel.org
Subject: Re: Dissociating process from bin's filesystem
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Rob Landley wrote:
> 
> On Wednesday 24 April 2002 10:47 pm, Eric Buddington wrote:
> > Is there any way to dissociate a process from its on-disk binary?
> 
> Sure.  Fire up an instance of ramfs, copy the file there (and its associated
> libraries), chroot and exec the copy on ramfs.  Sort of like initrd in
> reverse. :)

If you're writing the binary in question, you could use mlockall() which ensures
that you won't need to page in bits of the binary from disk.  I don't know if
the filesystem considers this totally dissociated though, but it might be good
enough for what you want.

Chris

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